./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:58:26,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:58:26,776 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 03:58:26,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:58:26,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:58:26,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:58:26,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:58:26,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:58:26,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:58:26,808 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:58:26,809 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:58:26,809 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:58:26,810 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:58:26,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:58:26,811 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:58:26,811 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:58:26,812 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:58:26,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:58:26,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:58:26,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:58:26,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:58:26,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:58:26,815 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 03:58:26,815 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:58:26,816 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:58:26,816 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:58:26,817 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:58:26,817 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:58:26,817 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:58:26,818 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:58:26,818 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:58:26,819 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:58:26,819 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:58:26,820 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:58:26,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:58:26,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:58:26,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:58:26,821 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:58:26,821 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:58:26,821 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:58:26,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:58:26,822 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_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf117fc0bf8ae8b9ef4bb89156c7168763fcd2ba3d8567cd686924f85ad04dca [2023-11-29 03:58:27,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:58:27,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:58:27,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:58:27,081 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:58:27,081 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:58:27,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2023-11-29 03:58:29,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:58:30,278 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:58:30,278 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/sv-benchmarks/c/goblint-regression/09-regions_18-nested_rc.i [2023-11-29 03:58:30,300 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/data/84b516947/d172eda18f26431ea44139f89b46bd0b/FLAG2b555afca [2023-11-29 03:58:30,316 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/data/84b516947/d172eda18f26431ea44139f89b46bd0b [2023-11-29 03:58:30,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:58:30,320 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:58:30,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:58:30,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:58:30,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:58:30,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:58:30" (1/1) ... [2023-11-29 03:58:30,330 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72efb341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:30, skipping insertion in model container [2023-11-29 03:58:30,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:58:30" (1/1) ... [2023-11-29 03:58:30,386 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:58:30,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:58:30,917 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:58:30,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:58:31,087 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:58:31,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31 WrapperNode [2023-11-29 03:58:31,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:58:31,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:58:31,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:58:31,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:58:31,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (1/1) ... [2023-11-29 03:58:31,123 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (1/1) ... [2023-11-29 03:58:31,165 INFO L138 Inliner]: procedures = 371, calls = 31, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 234 [2023-11-29 03:58:31,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:58:31,166 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:58:31,166 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:58:31,166 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:58:31,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (1/1) ... [2023-11-29 03:58:31,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (1/1) ... [2023-11-29 03:58:31,185 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (1/1) ... [2023-11-29 03:58:31,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (1/1) ... [2023-11-29 03:58:31,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (1/1) ... [2023-11-29 03:58:31,218 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (1/1) ... [2023-11-29 03:58:31,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (1/1) ... [2023-11-29 03:58:31,224 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (1/1) ... [2023-11-29 03:58:31,230 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:58:31,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:58:31,232 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:58:31,232 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:58:31,233 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (1/1) ... [2023-11-29 03:58:31,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:58:31,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:58:31,267 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:58:31,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:58:31,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:58:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-29 03:58:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:58:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 03:58:31,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 03:58:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 03:58:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 03:58:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 03:58:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:58:31,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-29 03:58:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 03:58:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 03:58:31,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:58:31,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:58:31,309 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 03:58:31,525 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:58:31,528 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:58:31,987 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:58:32,015 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:58:32,016 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:58:32,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:58:32 BoogieIcfgContainer [2023-11-29 03:58:32,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:58:32,021 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:58:32,021 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:58:32,024 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:58:32,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:58:30" (1/3) ... [2023-11-29 03:58:32,025 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30381998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:58:32, skipping insertion in model container [2023-11-29 03:58:32,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:58:31" (2/3) ... [2023-11-29 03:58:32,026 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30381998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:58:32, skipping insertion in model container [2023-11-29 03:58:32,026 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:58:32" (3/3) ... [2023-11-29 03:58:32,027 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_18-nested_rc.i [2023-11-29 03:58:32,037 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 03:58:32,048 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:58:32,048 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-29 03:58:32,048 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 03:58:32,143 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 03:58:32,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 274 places, 274 transitions, 552 flow [2023-11-29 03:58:32,329 INFO L124 PetriNetUnfolderBase]: 4/273 cut-off events. [2023-11-29 03:58:32,329 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:58:32,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 273 events. 4/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 116 event pairs, 0 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 144. Up to 2 conditions per place. [2023-11-29 03:58:32,335 INFO L82 GeneralOperation]: Start removeDead. Operand has 274 places, 274 transitions, 552 flow [2023-11-29 03:58:32,344 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 273 places, 273 transitions, 549 flow [2023-11-29 03:58:32,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:58:32,363 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;@2999d653, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:58:32,364 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-29 03:58:32,373 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 03:58:32,374 INFO L124 PetriNetUnfolderBase]: 3/44 cut-off events. [2023-11-29 03:58:32,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:58:32,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:32,375 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] [2023-11-29 03:58:32,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:32,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:32,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1531436911, now seen corresponding path program 1 times [2023-11-29 03:58:32,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:32,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452507278] [2023-11-29 03:58:32,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:32,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:32,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:32,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:32,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:32,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452507278] [2023-11-29 03:58:32,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452507278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:32,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:32,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:58:32,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653993657] [2023-11-29 03:58:32,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:32,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:58:32,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:32,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:58:32,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:58:32,739 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 260 out of 274 [2023-11-29 03:58:32,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 273 transitions, 549 flow. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:32,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:32,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 260 of 274 [2023-11-29 03:58:32,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:32,851 INFO L124 PetriNetUnfolderBase]: 7/352 cut-off events. [2023-11-29 03:58:32,851 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 03:58:32,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 352 events. 7/352 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 411 event pairs, 6 based on Foata normal form. 5/327 useless extension candidates. Maximal degree in co-relation 222. Up to 24 conditions per place. [2023-11-29 03:58:32,855 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 10 selfloop transitions, 2 changer transitions 1/271 dead transitions. [2023-11-29 03:58:32,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 271 transitions, 569 flow [2023-11-29 03:58:32,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:58:32,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:58:32,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 797 transitions. [2023-11-29 03:58:32,875 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9695863746958637 [2023-11-29 03:58:32,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 797 transitions. [2023-11-29 03:58:32,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 797 transitions. [2023-11-29 03:58:32,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:32,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 797 transitions. [2023-11-29 03:58:32,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:32,898 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:32,899 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 274.0) internal successors, (1096), 4 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:32,901 INFO L175 Difference]: Start difference. First operand has 273 places, 273 transitions, 549 flow. Second operand 3 states and 797 transitions. [2023-11-29 03:58:32,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 271 transitions, 569 flow [2023-11-29 03:58:32,908 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 271 transitions, 568 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 03:58:32,916 INFO L231 Difference]: Finished difference. Result has 275 places, 270 transitions, 552 flow [2023-11-29 03:58:32,919 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=552, PETRI_PLACES=275, PETRI_TRANSITIONS=270} [2023-11-29 03:58:32,923 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 2 predicate places. [2023-11-29 03:58:32,924 INFO L495 AbstractCegarLoop]: Abstraction has has 275 places, 270 transitions, 552 flow [2023-11-29 03:58:32,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:32,925 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:32,925 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:32,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:58:32,925 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:32,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:32,926 INFO L85 PathProgramCache]: Analyzing trace with hash -983557174, now seen corresponding path program 1 times [2023-11-29 03:58:32,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:32,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671028361] [2023-11-29 03:58:32,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:32,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:33,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:33,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671028361] [2023-11-29 03:58:33,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671028361] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:58:33,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005158118] [2023-11-29 03:58:33,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:33,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:58:33,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:58:33,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:58:33,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:58:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:33,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:58:33,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:58:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:33,317 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:58:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:33,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005158118] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:58:33,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:58:33,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 03:58:33,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624188169] [2023-11-29 03:58:33,365 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:58:33,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:58:33,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:33,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:58:33,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:58:33,409 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 274 [2023-11-29 03:58:33,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 270 transitions, 552 flow. Second operand has 10 states, 10 states have (on average 258.8) internal successors, (2588), 10 states have internal predecessors, (2588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:33,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:33,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 274 [2023-11-29 03:58:33,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:33,584 INFO L124 PetriNetUnfolderBase]: 7/358 cut-off events. [2023-11-29 03:58:33,584 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 03:58:33,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405 conditions, 358 events. 7/358 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 408 event pairs, 6 based on Foata normal form. 2/331 useless extension candidates. Maximal degree in co-relation 380. Up to 24 conditions per place. [2023-11-29 03:58:33,587 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 14 selfloop transitions, 9 changer transitions 0/278 dead transitions. [2023-11-29 03:58:33,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 278 transitions, 616 flow [2023-11-29 03:58:33,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:58:33,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 03:58:33,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2338 transitions. [2023-11-29 03:58:33,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9480940794809408 [2023-11-29 03:58:33,597 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2338 transitions. [2023-11-29 03:58:33,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2338 transitions. [2023-11-29 03:58:33,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:33,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2338 transitions. [2023-11-29 03:58:33,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 259.77777777777777) internal successors, (2338), 9 states have internal predecessors, (2338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:33,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:33,618 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:33,619 INFO L175 Difference]: Start difference. First operand has 275 places, 270 transitions, 552 flow. Second operand 9 states and 2338 transitions. [2023-11-29 03:58:33,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 278 transitions, 616 flow [2023-11-29 03:58:33,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 278 transitions, 614 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 03:58:33,627 INFO L231 Difference]: Finished difference. Result has 284 places, 276 transitions, 600 flow [2023-11-29 03:58:33,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=550, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=600, PETRI_PLACES=284, PETRI_TRANSITIONS=276} [2023-11-29 03:58:33,628 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 11 predicate places. [2023-11-29 03:58:33,628 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 276 transitions, 600 flow [2023-11-29 03:58:33,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 258.8) internal successors, (2588), 10 states have internal predecessors, (2588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:33,631 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:33,631 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:33,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:58:33,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 03:58:33,833 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:33,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:33,833 INFO L85 PathProgramCache]: Analyzing trace with hash 463415018, now seen corresponding path program 2 times [2023-11-29 03:58:33,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:33,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015023517] [2023-11-29 03:58:33,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:33,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:34,021 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:34,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:34,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015023517] [2023-11-29 03:58:34,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015023517] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:58:34,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221792370] [2023-11-29 03:58:34,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:58:34,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:58:34,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:58:34,024 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:58:34,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:58:34,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:58:34,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:58:34,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:58:34,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:58:34,238 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 03:58:34,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-29 03:58:34,316 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:58:34,317 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-29 03:58:34,367 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:58:34,368 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-29 03:58:34,407 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 03:58:34,407 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:58:34,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221792370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:34,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:58:34,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2023-11-29 03:58:34,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403713797] [2023-11-29 03:58:34,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:34,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:58:34,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:34,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:58:34,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:58:35,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 274 [2023-11-29 03:58:35,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 276 transitions, 600 flow. Second operand has 8 states, 8 states have (on average 185.25) internal successors, (1482), 8 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:35,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:35,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 274 [2023-11-29 03:58:35,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:35,574 INFO L124 PetriNetUnfolderBase]: 365/1634 cut-off events. [2023-11-29 03:58:35,575 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-29 03:58:35,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 1634 events. 365/1634 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9163 event pairs, 364 based on Foata normal form. 0/1509 useless extension candidates. Maximal degree in co-relation 2427. Up to 794 conditions per place. [2023-11-29 03:58:35,589 INFO L140 encePairwiseOnDemand]: 254/274 looper letters, 67 selfloop transitions, 18 changer transitions 0/274 dead transitions. [2023-11-29 03:58:35,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 274 transitions, 766 flow [2023-11-29 03:58:35,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:58:35,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 03:58:35,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1743 transitions. [2023-11-29 03:58:35,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7068126520681265 [2023-11-29 03:58:35,597 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1743 transitions. [2023-11-29 03:58:35,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1743 transitions. [2023-11-29 03:58:35,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:35,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1743 transitions. [2023-11-29 03:58:35,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 193.66666666666666) internal successors, (1743), 9 states have internal predecessors, (1743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:35,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:35,614 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 274.0) internal successors, (2740), 10 states have internal predecessors, (2740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:35,614 INFO L175 Difference]: Start difference. First operand has 284 places, 276 transitions, 600 flow. Second operand 9 states and 1743 transitions. [2023-11-29 03:58:35,614 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 274 transitions, 766 flow [2023-11-29 03:58:35,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 274 transitions, 760 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-29 03:58:35,622 INFO L231 Difference]: Finished difference. Result has 289 places, 274 transitions, 626 flow [2023-11-29 03:58:35,623 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=626, PETRI_PLACES=289, PETRI_TRANSITIONS=274} [2023-11-29 03:58:35,624 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 16 predicate places. [2023-11-29 03:58:35,624 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 274 transitions, 626 flow [2023-11-29 03:58:35,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 185.25) internal successors, (1482), 8 states have internal predecessors, (1482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:35,625 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:35,625 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:35,631 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:58:35,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:58:35,829 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:35,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:35,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1789390902, now seen corresponding path program 1 times [2023-11-29 03:58:35,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:35,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602547783] [2023-11-29 03:58:35,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:35,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:36,025 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:36,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:36,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602547783] [2023-11-29 03:58:36,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602547783] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:58:36,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47598667] [2023-11-29 03:58:36,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:36,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:58:36,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:58:36,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:58:36,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:58:36,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:36,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:58:36,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:58:36,202 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:36,202 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:58:36,311 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:36,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47598667] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:58:36,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:58:36,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-29 03:58:36,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854260962] [2023-11-29 03:58:36,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:58:36,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 03:58:36,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:36,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 03:58:36,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 03:58:36,351 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 274 [2023-11-29 03:58:36,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 274 transitions, 626 flow. Second operand has 18 states, 18 states have (on average 258.8888888888889) internal successors, (4660), 18 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:36,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:36,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 274 [2023-11-29 03:58:36,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:36,624 INFO L124 PetriNetUnfolderBase]: 7/376 cut-off events. [2023-11-29 03:58:36,625 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-29 03:58:36,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 376 events. 7/376 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 406 event pairs, 6 based on Foata normal form. 4/353 useless extension candidates. Maximal degree in co-relation 374. Up to 24 conditions per place. [2023-11-29 03:58:36,627 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 18 selfloop transitions, 21 changer transitions 0/292 dead transitions. [2023-11-29 03:58:36,628 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 292 transitions, 792 flow [2023-11-29 03:58:36,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:58:36,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 03:58:36,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5440 transitions. [2023-11-29 03:58:36,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454292665971498 [2023-11-29 03:58:36,647 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5440 transitions. [2023-11-29 03:58:36,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5440 transitions. [2023-11-29 03:58:36,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:36,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5440 transitions. [2023-11-29 03:58:36,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 259.04761904761904) internal successors, (5440), 21 states have internal predecessors, (5440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:36,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:36,689 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:36,689 INFO L175 Difference]: Start difference. First operand has 289 places, 274 transitions, 626 flow. Second operand 21 states and 5440 transitions. [2023-11-29 03:58:36,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 292 transitions, 792 flow [2023-11-29 03:58:36,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 292 transitions, 756 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-29 03:58:36,698 INFO L231 Difference]: Finished difference. Result has 306 places, 287 transitions, 720 flow [2023-11-29 03:58:36,699 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=720, PETRI_PLACES=306, PETRI_TRANSITIONS=287} [2023-11-29 03:58:36,700 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 33 predicate places. [2023-11-29 03:58:36,700 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 287 transitions, 720 flow [2023-11-29 03:58:36,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 258.8888888888889) internal successors, (4660), 18 states have internal predecessors, (4660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:36,703 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:36,703 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:36,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 03:58:36,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:58:36,904 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:36,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:36,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1411142134, now seen corresponding path program 2 times [2023-11-29 03:58:36,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:36,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40821521] [2023-11-29 03:58:36,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:36,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:37,324 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:37,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:37,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40821521] [2023-11-29 03:58:37,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40821521] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:58:37,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871565075] [2023-11-29 03:58:37,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:58:37,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:58:37,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:58:37,326 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:58:37,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:58:37,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:58:37,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:58:37,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 03:58:37,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:58:37,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 03:58:37,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-29 03:58:37,529 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:58:37,529 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-29 03:58:37,575 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 03:58:37,575 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-29 03:58:37,617 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 03:58:37,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:58:37,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871565075] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:37,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:58:37,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-29 03:58:37,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921931519] [2023-11-29 03:58:37,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:37,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:58:37,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:37,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:58:37,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:58:37,994 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 274 [2023-11-29 03:58:37,995 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 287 transitions, 720 flow. Second operand has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:37,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:37,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 274 [2023-11-29 03:58:37,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:38,352 INFO L124 PetriNetUnfolderBase]: 365/1652 cut-off events. [2023-11-29 03:58:38,352 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-29 03:58:38,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2557 conditions, 1652 events. 365/1652 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 9203 event pairs, 364 based on Foata normal form. 0/1529 useless extension candidates. Maximal degree in co-relation 2425. Up to 800 conditions per place. [2023-11-29 03:58:38,362 INFO L140 encePairwiseOnDemand]: 262/274 looper letters, 71 selfloop transitions, 10 changer transitions 0/285 dead transitions. [2023-11-29 03:58:38,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 285 transitions, 878 flow [2023-11-29 03:58:38,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:58:38,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:58:38,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1211 transitions. [2023-11-29 03:58:38,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.73661800486618 [2023-11-29 03:58:38,366 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1211 transitions. [2023-11-29 03:58:38,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1211 transitions. [2023-11-29 03:58:38,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:38,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1211 transitions. [2023-11-29 03:58:38,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.83333333333334) internal successors, (1211), 6 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:38,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:38,373 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:38,373 INFO L175 Difference]: Start difference. First operand has 306 places, 287 transitions, 720 flow. Second operand 6 states and 1211 transitions. [2023-11-29 03:58:38,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 285 transitions, 878 flow [2023-11-29 03:58:38,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 285 transitions, 854 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-29 03:58:38,382 INFO L231 Difference]: Finished difference. Result has 303 places, 285 transitions, 712 flow [2023-11-29 03:58:38,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=712, PETRI_PLACES=303, PETRI_TRANSITIONS=285} [2023-11-29 03:58:38,384 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 30 predicate places. [2023-11-29 03:58:38,384 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 285 transitions, 712 flow [2023-11-29 03:58:38,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 189.33333333333334) internal successors, (1136), 6 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:38,385 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:38,385 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:38,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:58:38,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:58:38,586 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:38,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:38,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1318046405, now seen corresponding path program 1 times [2023-11-29 03:58:38,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:38,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306248237] [2023-11-29 03:58:38,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:38,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:38,986 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:38,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:38,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306248237] [2023-11-29 03:58:38,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306248237] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:58:38,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094484492] [2023-11-29 03:58:38,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:38,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:58:38,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:58:38,988 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:58:38,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:58:39,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:39,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:58:39,139 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:58:39,222 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:39,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:58:39,449 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:58:39,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094484492] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:58:39,449 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:58:39,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-29 03:58:39,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409152672] [2023-11-29 03:58:39,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:58:39,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 03:58:39,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:39,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 03:58:39,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-29 03:58:39,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 274 [2023-11-29 03:58:39,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 285 transitions, 712 flow. Second operand has 23 states, 23 states have (on average 259.0) internal successors, (5957), 23 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:39,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:39,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 274 [2023-11-29 03:58:39,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:39,920 INFO L124 PetriNetUnfolderBase]: 7/389 cut-off events. [2023-11-29 03:58:39,920 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2023-11-29 03:58:39,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 389 events. 7/389 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 404 event pairs, 6 based on Foata normal form. 3/367 useless extension candidates. Maximal degree in co-relation 371. Up to 24 conditions per place. [2023-11-29 03:58:39,924 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 21 selfloop transitions, 30 changer transitions 0/302 dead transitions. [2023-11-29 03:58:39,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 302 transitions, 936 flow [2023-11-29 03:58:39,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 03:58:39,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-29 03:58:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7764 transitions. [2023-11-29 03:58:39,946 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9445255474452555 [2023-11-29 03:58:39,946 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7764 transitions. [2023-11-29 03:58:39,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7764 transitions. [2023-11-29 03:58:39,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:39,951 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7764 transitions. [2023-11-29 03:58:39,971 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 258.8) internal successors, (7764), 30 states have internal predecessors, (7764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:39,990 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 274.0) internal successors, (8494), 31 states have internal predecessors, (8494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:39,993 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 274.0) internal successors, (8494), 31 states have internal predecessors, (8494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:39,993 INFO L175 Difference]: Start difference. First operand has 303 places, 285 transitions, 712 flow. Second operand 30 states and 7764 transitions. [2023-11-29 03:58:39,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 302 transitions, 936 flow [2023-11-29 03:58:39,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 302 transitions, 916 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:58:40,004 INFO L231 Difference]: Finished difference. Result has 331 places, 295 transitions, 844 flow [2023-11-29 03:58:40,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=844, PETRI_PLACES=331, PETRI_TRANSITIONS=295} [2023-11-29 03:58:40,005 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 58 predicate places. [2023-11-29 03:58:40,006 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 295 transitions, 844 flow [2023-11-29 03:58:40,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 259.0) internal successors, (5957), 23 states have internal predecessors, (5957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:40,008 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:40,008 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:40,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 03:58:40,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a11ccd1-fab0-46fe-8ba5-53007a7a019d/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:58:40,209 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:40,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:40,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1051795616, now seen corresponding path program 2 times [2023-11-29 03:58:40,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:40,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884480283] [2023-11-29 03:58:40,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:40,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:58:40,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:40,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884480283] [2023-11-29 03:58:40,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884480283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:40,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:40,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:58:40,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311798995] [2023-11-29 03:58:40,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:40,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:58:40,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:40,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:58:40,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:58:41,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 274 [2023-11-29 03:58:41,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 295 transitions, 844 flow. Second operand has 6 states, 6 states have (on average 186.83333333333334) internal successors, (1121), 6 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:41,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:41,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 274 [2023-11-29 03:58:41,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:41,750 INFO L124 PetriNetUnfolderBase]: 417/1847 cut-off events. [2023-11-29 03:58:41,751 INFO L125 PetriNetUnfolderBase]: For 118/118 co-relation queries the response was YES. [2023-11-29 03:58:41,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2929 conditions, 1847 events. 417/1847 cut-off events. For 118/118 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10648 event pairs, 416 based on Foata normal form. 0/1714 useless extension candidates. Maximal degree in co-relation 2718. Up to 914 conditions per place. [2023-11-29 03:58:41,766 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 81 selfloop transitions, 5 changer transitions 0/294 dead transitions. [2023-11-29 03:58:41,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 294 transitions, 1014 flow [2023-11-29 03:58:41,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:58:41,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:58:41,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2023-11-29 03:58:41,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7244525547445255 [2023-11-29 03:58:41,772 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2023-11-29 03:58:41,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2023-11-29 03:58:41,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:41,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2023-11-29 03:58:41,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:41,779 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:41,779 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:41,780 INFO L175 Difference]: Start difference. First operand has 331 places, 295 transitions, 844 flow. Second operand 6 states and 1191 transitions. [2023-11-29 03:58:41,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 294 transitions, 1014 flow [2023-11-29 03:58:41,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 294 transitions, 968 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-29 03:58:41,790 INFO L231 Difference]: Finished difference. Result has 317 places, 294 transitions, 806 flow [2023-11-29 03:58:41,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=796, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=806, PETRI_PLACES=317, PETRI_TRANSITIONS=294} [2023-11-29 03:58:41,791 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 44 predicate places. [2023-11-29 03:58:41,791 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 294 transitions, 806 flow [2023-11-29 03:58:41,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 186.83333333333334) internal successors, (1121), 6 states have internal predecessors, (1121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:41,792 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:41,792 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:41,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:58:41,793 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:41,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:41,793 INFO L85 PathProgramCache]: Analyzing trace with hash -690218525, now seen corresponding path program 1 times [2023-11-29 03:58:41,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:41,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106216940] [2023-11-29 03:58:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:41,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:42,581 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:58:42,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:42,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106216940] [2023-11-29 03:58:42,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106216940] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:42,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:42,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:58:42,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891791207] [2023-11-29 03:58:42,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:42,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:58:42,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:42,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:58:42,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:58:43,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 205 out of 274 [2023-11-29 03:58:43,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 294 transitions, 806 flow. Second operand has 6 states, 6 states have (on average 209.83333333333334) internal successors, (1259), 6 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:43,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:43,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 205 of 274 [2023-11-29 03:58:43,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:43,711 INFO L124 PetriNetUnfolderBase]: 257/1720 cut-off events. [2023-11-29 03:58:43,711 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2023-11-29 03:58:43,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2450 conditions, 1720 events. 257/1720 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10283 event pairs, 34 based on Foata normal form. 0/1591 useless extension candidates. Maximal degree in co-relation 2260. Up to 436 conditions per place. [2023-11-29 03:58:43,724 INFO L140 encePairwiseOnDemand]: 245/274 looper letters, 68 selfloop transitions, 75 changer transitions 0/371 dead transitions. [2023-11-29 03:58:43,725 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 371 transitions, 1246 flow [2023-11-29 03:58:43,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:58:43,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:58:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1375 transitions. [2023-11-29 03:58:43,730 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8363746958637469 [2023-11-29 03:58:43,730 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1375 transitions. [2023-11-29 03:58:43,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1375 transitions. [2023-11-29 03:58:43,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:43,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1375 transitions. [2023-11-29 03:58:43,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.16666666666666) internal successors, (1375), 6 states have internal predecessors, (1375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:43,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:43,739 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:43,739 INFO L175 Difference]: Start difference. First operand has 317 places, 294 transitions, 806 flow. Second operand 6 states and 1375 transitions. [2023-11-29 03:58:43,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 371 transitions, 1246 flow [2023-11-29 03:58:43,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 371 transitions, 1236 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:58:43,751 INFO L231 Difference]: Finished difference. Result has 321 places, 362 transitions, 1276 flow [2023-11-29 03:58:43,752 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=794, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1276, PETRI_PLACES=321, PETRI_TRANSITIONS=362} [2023-11-29 03:58:43,753 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 48 predicate places. [2023-11-29 03:58:43,753 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 362 transitions, 1276 flow [2023-11-29 03:58:43,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 209.83333333333334) internal successors, (1259), 6 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:43,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:43,754 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:43,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 03:58:43,755 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:43,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:43,755 INFO L85 PathProgramCache]: Analyzing trace with hash 2116754519, now seen corresponding path program 1 times [2023-11-29 03:58:43,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:43,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19918935] [2023-11-29 03:58:43,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:43,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:44,553 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:58:44,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:44,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19918935] [2023-11-29 03:58:44,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19918935] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:44,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:44,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:58:44,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736458971] [2023-11-29 03:58:44,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:44,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:58:44,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:44,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:58:44,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:58:45,121 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 274 [2023-11-29 03:58:45,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 362 transitions, 1276 flow. Second operand has 6 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:45,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:45,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 274 [2023-11-29 03:58:45,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:45,571 INFO L124 PetriNetUnfolderBase]: 209/1586 cut-off events. [2023-11-29 03:58:45,571 INFO L125 PetriNetUnfolderBase]: For 472/491 co-relation queries the response was YES. [2023-11-29 03:58:45,575 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2707 conditions, 1586 events. 209/1586 cut-off events. For 472/491 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 8814 event pairs, 53 based on Foata normal form. 0/1471 useless extension candidates. Maximal degree in co-relation 2515. Up to 336 conditions per place. [2023-11-29 03:58:45,581 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 117 selfloop transitions, 5 changer transitions 0/361 dead transitions. [2023-11-29 03:58:45,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 361 transitions, 1518 flow [2023-11-29 03:58:45,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:58:45,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:58:45,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1331 transitions. [2023-11-29 03:58:45,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.809610705596107 [2023-11-29 03:58:45,585 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1331 transitions. [2023-11-29 03:58:45,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1331 transitions. [2023-11-29 03:58:45,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:45,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1331 transitions. [2023-11-29 03:58:45,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 221.83333333333334) internal successors, (1331), 6 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:45,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:45,590 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:45,590 INFO L175 Difference]: Start difference. First operand has 321 places, 362 transitions, 1276 flow. Second operand 6 states and 1331 transitions. [2023-11-29 03:58:45,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 361 transitions, 1518 flow [2023-11-29 03:58:45,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 361 transitions, 1518 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 03:58:45,601 INFO L231 Difference]: Finished difference. Result has 325 places, 361 transitions, 1284 flow [2023-11-29 03:58:45,601 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1274, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=356, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1284, PETRI_PLACES=325, PETRI_TRANSITIONS=361} [2023-11-29 03:58:45,602 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 52 predicate places. [2023-11-29 03:58:45,602 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 361 transitions, 1284 flow [2023-11-29 03:58:45,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 216.5) internal successors, (1299), 6 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:45,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:45,603 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:45,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 03:58:45,603 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:45,604 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1165511773, now seen corresponding path program 1 times [2023-11-29 03:58:45,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:45,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564311960] [2023-11-29 03:58:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:45,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:45,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:46,100 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:58:46,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:46,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564311960] [2023-11-29 03:58:46,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564311960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:46,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:46,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:58:46,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688203586] [2023-11-29 03:58:46,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:46,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:58:46,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:46,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:58:46,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:58:46,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 274 [2023-11-29 03:58:46,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 361 transitions, 1284 flow. Second operand has 6 states, 6 states have (on average 192.16666666666666) internal successors, (1153), 6 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:46,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:46,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 274 [2023-11-29 03:58:46,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:46,987 INFO L124 PetriNetUnfolderBase]: 717/2947 cut-off events. [2023-11-29 03:58:46,987 INFO L125 PetriNetUnfolderBase]: For 941/992 co-relation queries the response was YES. [2023-11-29 03:58:46,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5719 conditions, 2947 events. 717/2947 cut-off events. For 941/992 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 20177 event pairs, 399 based on Foata normal form. 0/2727 useless extension candidates. Maximal degree in co-relation 5526. Up to 1485 conditions per place. [2023-11-29 03:58:47,008 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 146 selfloop transitions, 5 changer transitions 0/360 dead transitions. [2023-11-29 03:58:47,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 360 transitions, 1584 flow [2023-11-29 03:58:47,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:58:47,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:58:47,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1201 transitions. [2023-11-29 03:58:47,013 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7305352798053528 [2023-11-29 03:58:47,013 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1201 transitions. [2023-11-29 03:58:47,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1201 transitions. [2023-11-29 03:58:47,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:47,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1201 transitions. [2023-11-29 03:58:47,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 200.16666666666666) internal successors, (1201), 6 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) [2023-11-29 03:58:47,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:47,019 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:47,019 INFO L175 Difference]: Start difference. First operand has 325 places, 361 transitions, 1284 flow. Second operand 6 states and 1201 transitions. [2023-11-29 03:58:47,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 360 transitions, 1584 flow [2023-11-29 03:58:47,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 360 transitions, 1574 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:58:47,029 INFO L231 Difference]: Finished difference. Result has 324 places, 360 transitions, 1282 flow [2023-11-29 03:58:47,030 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1282, PETRI_PLACES=324, PETRI_TRANSITIONS=360} [2023-11-29 03:58:47,031 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 51 predicate places. [2023-11-29 03:58:47,031 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 360 transitions, 1282 flow [2023-11-29 03:58:47,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 192.16666666666666) internal successors, (1153), 6 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:47,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:47,032 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:47,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 03:58:47,032 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:47,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:47,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1376428024, now seen corresponding path program 1 times [2023-11-29 03:58:47,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:47,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705489623] [2023-11-29 03:58:47,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:47,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:47,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:58:47,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:47,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705489623] [2023-11-29 03:58:47,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705489623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:47,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:47,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:58:47,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698884151] [2023-11-29 03:58:47,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:47,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:58:47,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:47,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:58:47,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:58:48,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 03:58:48,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 360 transitions, 1282 flow. Second operand has 6 states, 6 states have (on average 193.66666666666666) internal successors, (1162), 6 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:48,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:48,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 03:58:48,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:48,813 INFO L124 PetriNetUnfolderBase]: 717/2946 cut-off events. [2023-11-29 03:58:48,813 INFO L125 PetriNetUnfolderBase]: For 943/994 co-relation queries the response was YES. [2023-11-29 03:58:48,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5717 conditions, 2946 events. 717/2946 cut-off events. For 943/994 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 20151 event pairs, 399 based on Foata normal form. 0/2727 useless extension candidates. Maximal degree in co-relation 5524. Up to 1484 conditions per place. [2023-11-29 03:58:48,833 INFO L140 encePairwiseOnDemand]: 268/274 looper letters, 145 selfloop transitions, 5 changer transitions 0/359 dead transitions. [2023-11-29 03:58:48,833 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 359 transitions, 1580 flow [2023-11-29 03:58:48,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:58:48,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:58:48,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1206 transitions. [2023-11-29 03:58:48,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7335766423357665 [2023-11-29 03:58:48,836 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1206 transitions. [2023-11-29 03:58:48,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1206 transitions. [2023-11-29 03:58:48,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:48,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1206 transitions. [2023-11-29 03:58:48,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 201.0) internal successors, (1206), 6 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:48,840 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:48,840 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:48,841 INFO L175 Difference]: Start difference. First operand has 324 places, 360 transitions, 1282 flow. Second operand 6 states and 1206 transitions. [2023-11-29 03:58:48,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 359 transitions, 1580 flow [2023-11-29 03:58:48,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 359 transitions, 1570 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:58:48,855 INFO L231 Difference]: Finished difference. Result has 323 places, 359 transitions, 1280 flow [2023-11-29 03:58:48,856 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1280, PETRI_PLACES=323, PETRI_TRANSITIONS=359} [2023-11-29 03:58:48,857 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 50 predicate places. [2023-11-29 03:58:48,857 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 359 transitions, 1280 flow [2023-11-29 03:58:48,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.66666666666666) internal successors, (1162), 6 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:48,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:48,858 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:48,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 03:58:48,858 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:48,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:48,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2097846883, now seen corresponding path program 1 times [2023-11-29 03:58:48,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:48,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752248311] [2023-11-29 03:58:48,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:48,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:49,605 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:58:49,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:49,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752248311] [2023-11-29 03:58:49,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752248311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:49,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:49,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:58:49,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224224118] [2023-11-29 03:58:49,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:49,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:58:49,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:49,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:58:49,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:58:50,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 274 [2023-11-29 03:58:50,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 359 transitions, 1280 flow. Second operand has 6 states, 6 states have (on average 218.16666666666666) internal successors, (1309), 6 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:50,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:50,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 274 [2023-11-29 03:58:50,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:50,654 INFO L124 PetriNetUnfolderBase]: 530/2502 cut-off events. [2023-11-29 03:58:50,654 INFO L125 PetriNetUnfolderBase]: For 942/1035 co-relation queries the response was YES. [2023-11-29 03:58:50,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4704 conditions, 2502 events. 530/2502 cut-off events. For 942/1035 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16299 event pairs, 93 based on Foata normal form. 16/2353 useless extension candidates. Maximal degree in co-relation 4510. Up to 813 conditions per place. [2023-11-29 03:58:50,669 INFO L140 encePairwiseOnDemand]: 251/274 looper letters, 131 selfloop transitions, 130 changer transitions 0/496 dead transitions. [2023-11-29 03:58:50,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 496 transitions, 2452 flow [2023-11-29 03:58:50,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:58:50,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:58:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1409 transitions. [2023-11-29 03:58:50,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8570559610705596 [2023-11-29 03:58:50,671 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1409 transitions. [2023-11-29 03:58:50,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1409 transitions. [2023-11-29 03:58:50,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:50,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1409 transitions. [2023-11-29 03:58:50,673 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 234.83333333333334) internal successors, (1409), 6 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:50,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:50,676 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:50,676 INFO L175 Difference]: Start difference. First operand has 323 places, 359 transitions, 1280 flow. Second operand 6 states and 1409 transitions. [2023-11-29 03:58:50,676 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 496 transitions, 2452 flow [2023-11-29 03:58:50,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 496 transitions, 2442 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:58:50,690 INFO L231 Difference]: Finished difference. Result has 328 places, 488 transitions, 2498 flow [2023-11-29 03:58:50,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2498, PETRI_PLACES=328, PETRI_TRANSITIONS=488} [2023-11-29 03:58:50,691 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 55 predicate places. [2023-11-29 03:58:50,691 INFO L495 AbstractCegarLoop]: Abstraction has has 328 places, 488 transitions, 2498 flow [2023-11-29 03:58:50,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.16666666666666) internal successors, (1309), 6 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:50,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:50,693 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:50,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 03:58:50,693 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:50,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:50,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1895602370, now seen corresponding path program 1 times [2023-11-29 03:58:50,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:50,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241521149] [2023-11-29 03:58:50,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:50,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:50,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:51,333 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:58:51,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:51,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241521149] [2023-11-29 03:58:51,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241521149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:51,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:51,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:58:51,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002259105] [2023-11-29 03:58:51,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:51,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:58:51,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:51,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:58:51,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:58:51,763 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 274 [2023-11-29 03:58:51,764 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 488 transitions, 2498 flow. Second operand has 6 states, 6 states have (on average 218.33333333333334) internal successors, (1310), 6 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:51,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:51,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 274 [2023-11-29 03:58:51,765 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:52,503 INFO L124 PetriNetUnfolderBase]: 806/3284 cut-off events. [2023-11-29 03:58:52,503 INFO L125 PetriNetUnfolderBase]: For 3339/3557 co-relation queries the response was YES. [2023-11-29 03:58:52,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7594 conditions, 3284 events. 806/3284 cut-off events. For 3339/3557 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 22724 event pairs, 74 based on Foata normal form. 78/3187 useless extension candidates. Maximal degree in co-relation 7396. Up to 1071 conditions per place. [2023-11-29 03:58:52,533 INFO L140 encePairwiseOnDemand]: 251/274 looper letters, 251 selfloop transitions, 131 changer transitions 5/626 dead transitions. [2023-11-29 03:58:52,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 626 transitions, 4172 flow [2023-11-29 03:58:52,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:58:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:58:52,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1410 transitions. [2023-11-29 03:58:52,535 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8576642335766423 [2023-11-29 03:58:52,535 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1410 transitions. [2023-11-29 03:58:52,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1410 transitions. [2023-11-29 03:58:52,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:52,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1410 transitions. [2023-11-29 03:58:52,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 235.0) internal successors, (1410), 6 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:52,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:52,539 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:52,539 INFO L175 Difference]: Start difference. First operand has 328 places, 488 transitions, 2498 flow. Second operand 6 states and 1410 transitions. [2023-11-29 03:58:52,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 626 transitions, 4172 flow [2023-11-29 03:58:52,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 626 transitions, 4172 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 03:58:52,590 INFO L231 Difference]: Finished difference. Result has 338 places, 616 transitions, 3978 flow [2023-11-29 03:58:52,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=2498, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=488, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3978, PETRI_PLACES=338, PETRI_TRANSITIONS=616} [2023-11-29 03:58:52,591 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 65 predicate places. [2023-11-29 03:58:52,591 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 616 transitions, 3978 flow [2023-11-29 03:58:52,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 218.33333333333334) internal successors, (1310), 6 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:52,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:52,591 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:52,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 03:58:52,592 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:52,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:52,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1187822962, now seen corresponding path program 1 times [2023-11-29 03:58:52,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:52,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852767832] [2023-11-29 03:58:52,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:52,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:53,373 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:58:53,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:53,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852767832] [2023-11-29 03:58:53,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852767832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:53,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:53,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:58:53,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927884350] [2023-11-29 03:58:53,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:53,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:58:53,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:53,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:58:53,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:58:53,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 274 [2023-11-29 03:58:53,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 616 transitions, 3978 flow. Second operand has 6 states, 6 states have (on average 198.66666666666666) internal successors, (1192), 6 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:53,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:53,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 274 [2023-11-29 03:58:53,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:58:54,919 INFO L124 PetriNetUnfolderBase]: 1308/4647 cut-off events. [2023-11-29 03:58:54,919 INFO L125 PetriNetUnfolderBase]: For 4873/4930 co-relation queries the response was YES. [2023-11-29 03:58:54,935 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12212 conditions, 4647 events. 1308/4647 cut-off events. For 4873/4930 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 34419 event pairs, 369 based on Foata normal form. 11/4423 useless extension candidates. Maximal degree in co-relation 12010. Up to 2225 conditions per place. [2023-11-29 03:58:54,951 INFO L140 encePairwiseOnDemand]: 255/274 looper letters, 316 selfloop transitions, 84 changer transitions 0/695 dead transitions. [2023-11-29 03:58:54,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 695 transitions, 5176 flow [2023-11-29 03:58:54,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:58:54,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:58:54,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1288 transitions. [2023-11-29 03:58:54,955 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7834549878345499 [2023-11-29 03:58:54,955 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1288 transitions. [2023-11-29 03:58:54,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1288 transitions. [2023-11-29 03:58:54,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:58:54,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1288 transitions. [2023-11-29 03:58:54,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 214.66666666666666) internal successors, (1288), 6 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:54,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:54,963 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:54,963 INFO L175 Difference]: Start difference. First operand has 338 places, 616 transitions, 3978 flow. Second operand 6 states and 1288 transitions. [2023-11-29 03:58:54,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 695 transitions, 5176 flow [2023-11-29 03:58:54,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 695 transitions, 4922 flow, removed 127 selfloop flow, removed 0 redundant places. [2023-11-29 03:58:55,003 INFO L231 Difference]: Finished difference. Result has 347 places, 687 transitions, 4514 flow [2023-11-29 03:58:55,004 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=3730, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=616, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=568, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4514, PETRI_PLACES=347, PETRI_TRANSITIONS=687} [2023-11-29 03:58:55,004 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 74 predicate places. [2023-11-29 03:58:55,004 INFO L495 AbstractCegarLoop]: Abstraction has has 347 places, 687 transitions, 4514 flow [2023-11-29 03:58:55,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.66666666666666) internal successors, (1192), 6 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:55,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:58:55,005 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:58:55,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 03:58:55,005 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:58:55,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:58:55,006 INFO L85 PathProgramCache]: Analyzing trace with hash -838594902, now seen corresponding path program 1 times [2023-11-29 03:58:55,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:58:55,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145445832] [2023-11-29 03:58:55,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:58:55,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:58:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:58:57,128 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:58:57,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:58:57,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145445832] [2023-11-29 03:58:57,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145445832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:58:57,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:58:57,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 03:58:57,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551491351] [2023-11-29 03:58:57,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:58:57,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:58:57,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:58:57,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:58:57,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:58:59,528 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 03:58:59,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 687 transitions, 4514 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:58:59,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:58:59,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 03:58:59,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:59:01,410 INFO L124 PetriNetUnfolderBase]: 1171/4191 cut-off events. [2023-11-29 03:59:01,410 INFO L125 PetriNetUnfolderBase]: For 7102/7312 co-relation queries the response was YES. [2023-11-29 03:59:01,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12515 conditions, 4191 events. 1171/4191 cut-off events. For 7102/7312 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 29898 event pairs, 79 based on Foata normal form. 54/4103 useless extension candidates. Maximal degree in co-relation 12304. Up to 997 conditions per place. [2023-11-29 03:59:01,445 INFO L140 encePairwiseOnDemand]: 244/274 looper letters, 467 selfloop transitions, 172 changer transitions 3/897 dead transitions. [2023-11-29 03:59:01,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 897 transitions, 7368 flow [2023-11-29 03:59:01,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 03:59:01,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2023-11-29 03:59:01,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 5277 transitions. [2023-11-29 03:59:01,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.713300892133009 [2023-11-29 03:59:01,454 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 5277 transitions. [2023-11-29 03:59:01,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 5277 transitions. [2023-11-29 03:59:01,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:59:01,456 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 5277 transitions. [2023-11-29 03:59:01,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 195.44444444444446) internal successors, (5277), 27 states have internal predecessors, (5277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:01,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 274.0) internal successors, (7672), 28 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:01,477 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 274.0) internal successors, (7672), 28 states have internal predecessors, (7672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:01,477 INFO L175 Difference]: Start difference. First operand has 347 places, 687 transitions, 4514 flow. Second operand 27 states and 5277 transitions. [2023-11-29 03:59:01,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 897 transitions, 7368 flow [2023-11-29 03:59:01,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 897 transitions, 7296 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-11-29 03:59:01,530 INFO L231 Difference]: Finished difference. Result has 385 places, 766 transitions, 5650 flow [2023-11-29 03:59:01,531 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=4460, PETRI_DIFFERENCE_MINUEND_PLACES=347, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=5650, PETRI_PLACES=385, PETRI_TRANSITIONS=766} [2023-11-29 03:59:01,532 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 112 predicate places. [2023-11-29 03:59:01,532 INFO L495 AbstractCegarLoop]: Abstraction has has 385 places, 766 transitions, 5650 flow [2023-11-29 03:59:01,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:01,532 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:59:01,533 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:01,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 03:59:01,533 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:59:01,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:01,533 INFO L85 PathProgramCache]: Analyzing trace with hash 446752592, now seen corresponding path program 2 times [2023-11-29 03:59:01,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:01,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178572064] [2023-11-29 03:59:01,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:01,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:03,671 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:59:03,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:03,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178572064] [2023-11-29 03:59:03,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178572064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:03,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:03,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 03:59:03,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116687729] [2023-11-29 03:59:03,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:03,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:59:03,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:03,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:59:03,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:59:06,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 03:59:06,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 766 transitions, 5650 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:06,370 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:59:06,370 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 03:59:06,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:59:09,082 INFO L124 PetriNetUnfolderBase]: 1666/6063 cut-off events. [2023-11-29 03:59:09,082 INFO L125 PetriNetUnfolderBase]: For 14513/14844 co-relation queries the response was YES. [2023-11-29 03:59:09,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19352 conditions, 6063 events. 1666/6063 cut-off events. For 14513/14844 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 49699 event pairs, 102 based on Foata normal form. 176/6045 useless extension candidates. Maximal degree in co-relation 19125. Up to 1418 conditions per place. [2023-11-29 03:59:09,129 INFO L140 encePairwiseOnDemand]: 233/274 looper letters, 505 selfloop transitions, 299 changer transitions 6/1065 dead transitions. [2023-11-29 03:59:09,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 1065 transitions, 9857 flow [2023-11-29 03:59:09,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-29 03:59:09,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2023-11-29 03:59:09,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3634 transitions. [2023-11-29 03:59:09,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7368207623682076 [2023-11-29 03:59:09,133 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 3634 transitions. [2023-11-29 03:59:09,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 3634 transitions. [2023-11-29 03:59:09,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:59:09,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 3634 transitions. [2023-11-29 03:59:09,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 201.88888888888889) internal successors, (3634), 18 states have internal predecessors, (3634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:09,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:09,143 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 274.0) internal successors, (5206), 19 states have internal predecessors, (5206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:09,143 INFO L175 Difference]: Start difference. First operand has 385 places, 766 transitions, 5650 flow. Second operand 18 states and 3634 transitions. [2023-11-29 03:59:09,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 1065 transitions, 9857 flow [2023-11-29 03:59:09,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 1065 transitions, 9786 flow, removed 9 selfloop flow, removed 6 redundant places. [2023-11-29 03:59:09,211 INFO L231 Difference]: Finished difference. Result has 405 places, 885 transitions, 8090 flow [2023-11-29 03:59:09,212 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=5606, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=766, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=483, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=8090, PETRI_PLACES=405, PETRI_TRANSITIONS=885} [2023-11-29 03:59:09,212 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 132 predicate places. [2023-11-29 03:59:09,213 INFO L495 AbstractCegarLoop]: Abstraction has has 405 places, 885 transitions, 8090 flow [2023-11-29 03:59:09,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:09,213 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:59:09,213 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:09,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 03:59:09,213 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:59:09,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:09,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1493002882, now seen corresponding path program 3 times [2023-11-29 03:59:09,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:09,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090134182] [2023-11-29 03:59:09,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:09,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:10,739 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:59:10,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:10,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090134182] [2023-11-29 03:59:10,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090134182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:10,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:10,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 03:59:10,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187906712] [2023-11-29 03:59:10,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:10,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:59:10,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:10,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:59:10,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:59:13,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 03:59:13,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 885 transitions, 8090 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:13,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:59:13,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 03:59:13,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:59:17,067 INFO L124 PetriNetUnfolderBase]: 2270/8157 cut-off events. [2023-11-29 03:59:17,067 INFO L125 PetriNetUnfolderBase]: For 28572/29139 co-relation queries the response was YES. [2023-11-29 03:59:17,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28121 conditions, 8157 events. 2270/8157 cut-off events. For 28572/29139 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 72955 event pairs, 151 based on Foata normal form. 283/8163 useless extension candidates. Maximal degree in co-relation 28031. Up to 1899 conditions per place. [2023-11-29 03:59:17,139 INFO L140 encePairwiseOnDemand]: 234/274 looper letters, 621 selfloop transitions, 366 changer transitions 5/1247 dead transitions. [2023-11-29 03:59:17,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 1247 transitions, 13856 flow [2023-11-29 03:59:17,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 03:59:17,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-29 03:59:17,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4393 transitions. [2023-11-29 03:59:17,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7287657597876576 [2023-11-29 03:59:17,144 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4393 transitions. [2023-11-29 03:59:17,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4393 transitions. [2023-11-29 03:59:17,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:59:17,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4393 transitions. [2023-11-29 03:59:17,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 199.6818181818182) internal successors, (4393), 22 states have internal predecessors, (4393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:17,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 274.0) internal successors, (6302), 23 states have internal predecessors, (6302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:17,156 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 274.0) internal successors, (6302), 23 states have internal predecessors, (6302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:17,156 INFO L175 Difference]: Start difference. First operand has 405 places, 885 transitions, 8090 flow. Second operand 22 states and 4393 transitions. [2023-11-29 03:59:17,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 1247 transitions, 13856 flow [2023-11-29 03:59:17,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 418 places, 1247 transitions, 13703 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-11-29 03:59:17,271 INFO L231 Difference]: Finished difference. Result has 432 places, 1041 transitions, 11356 flow [2023-11-29 03:59:17,271 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=7964, PETRI_DIFFERENCE_MINUEND_PLACES=397, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=885, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=222, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=11356, PETRI_PLACES=432, PETRI_TRANSITIONS=1041} [2023-11-29 03:59:17,272 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 159 predicate places. [2023-11-29 03:59:17,272 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 1041 transitions, 11356 flow [2023-11-29 03:59:17,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:17,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:59:17,273 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:17,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 03:59:17,273 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:59:17,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:17,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1126478452, now seen corresponding path program 4 times [2023-11-29 03:59:17,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:17,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963587532] [2023-11-29 03:59:17,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:17,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:18,758 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:59:18,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:18,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963587532] [2023-11-29 03:59:18,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963587532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:18,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:18,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 03:59:18,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809727218] [2023-11-29 03:59:18,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:18,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:59:18,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:18,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:59:18,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:59:21,747 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 03:59:21,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 1041 transitions, 11356 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:21,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:59:21,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 03:59:21,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:59:25,746 INFO L124 PetriNetUnfolderBase]: 2903/10358 cut-off events. [2023-11-29 03:59:25,746 INFO L125 PetriNetUnfolderBase]: For 47825/48702 co-relation queries the response was YES. [2023-11-29 03:59:25,841 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38145 conditions, 10358 events. 2903/10358 cut-off events. For 47825/48702 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 98824 event pairs, 210 based on Foata normal form. 388/10385 useless extension candidates. Maximal degree in co-relation 38027. Up to 2403 conditions per place. [2023-11-29 03:59:25,879 INFO L140 encePairwiseOnDemand]: 235/274 looper letters, 743 selfloop transitions, 418 changer transitions 4/1420 dead transitions. [2023-11-29 03:59:25,879 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 454 places, 1420 transitions, 18139 flow [2023-11-29 03:59:25,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 03:59:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 03:59:25,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4572 transitions. [2023-11-29 03:59:25,886 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7254839733417963 [2023-11-29 03:59:25,886 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4572 transitions. [2023-11-29 03:59:25,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4572 transitions. [2023-11-29 03:59:25,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:59:25,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4572 transitions. [2023-11-29 03:59:25,893 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 198.7826086956522) internal successors, (4572), 23 states have internal predecessors, (4572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:26,030 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 274.0) internal successors, (6576), 24 states have internal predecessors, (6576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:26,031 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 274.0) internal successors, (6576), 24 states have internal predecessors, (6576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:26,031 INFO L175 Difference]: Start difference. First operand has 432 places, 1041 transitions, 11356 flow. Second operand 23 states and 4572 transitions. [2023-11-29 03:59:26,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 454 places, 1420 transitions, 18139 flow [2023-11-29 03:59:26,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 1420 transitions, 17877 flow, removed 82 selfloop flow, removed 6 redundant places. [2023-11-29 03:59:26,271 INFO L231 Difference]: Finished difference. Result has 464 places, 1200 transitions, 15153 flow [2023-11-29 03:59:26,272 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=11131, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1041, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=266, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=646, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=15153, PETRI_PLACES=464, PETRI_TRANSITIONS=1200} [2023-11-29 03:59:26,273 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 191 predicate places. [2023-11-29 03:59:26,273 INFO L495 AbstractCegarLoop]: Abstraction has has 464 places, 1200 transitions, 15153 flow [2023-11-29 03:59:26,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:26,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:59:26,274 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:26,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 03:59:26,274 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:59:26,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:26,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1184452974, now seen corresponding path program 5 times [2023-11-29 03:59:26,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:26,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281809081] [2023-11-29 03:59:26,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:26,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:27,784 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:59:27,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:27,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281809081] [2023-11-29 03:59:27,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281809081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:27,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:27,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 03:59:27,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682974377] [2023-11-29 03:59:27,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:27,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:59:27,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:27,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:59:27,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:59:29,801 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 03:59:29,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 1200 transitions, 15153 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:29,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:59:29,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 03:59:29,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:59:35,775 INFO L124 PetriNetUnfolderBase]: 4536/16242 cut-off events. [2023-11-29 03:59:35,775 INFO L125 PetriNetUnfolderBase]: For 87056/88404 co-relation queries the response was YES. [2023-11-29 03:59:35,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60531 conditions, 16242 events. 4536/16242 cut-off events. For 87056/88404 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 174209 event pairs, 273 based on Foata normal form. 628/16297 useless extension candidates. Maximal degree in co-relation 60396. Up to 3713 conditions per place. [2023-11-29 03:59:36,035 INFO L140 encePairwiseOnDemand]: 236/274 looper letters, 708 selfloop transitions, 635 changer transitions 3/1601 dead transitions. [2023-11-29 03:59:36,036 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 1601 transitions, 23696 flow [2023-11-29 03:59:36,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 03:59:36,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2023-11-29 03:59:36,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 3949 transitions. [2023-11-29 03:59:36,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7206204379562043 [2023-11-29 03:59:36,040 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 3949 transitions. [2023-11-29 03:59:36,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 3949 transitions. [2023-11-29 03:59:36,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:59:36,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 3949 transitions. [2023-11-29 03:59:36,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 197.45) internal successors, (3949), 20 states have internal predecessors, (3949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:36,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 274.0) internal successors, (5754), 21 states have internal predecessors, (5754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:36,050 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 274.0) internal successors, (5754), 21 states have internal predecessors, (5754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:36,050 INFO L175 Difference]: Start difference. First operand has 464 places, 1200 transitions, 15153 flow. Second operand 20 states and 3949 transitions. [2023-11-29 03:59:36,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 1601 transitions, 23696 flow [2023-11-29 03:59:36,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 478 places, 1601 transitions, 23417 flow, removed 91 selfloop flow, removed 5 redundant places. [2023-11-29 03:59:36,717 INFO L231 Difference]: Finished difference. Result has 488 places, 1436 transitions, 22003 flow [2023-11-29 03:59:36,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=14930, PETRI_DIFFERENCE_MINUEND_PLACES=459, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=399, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=22003, PETRI_PLACES=488, PETRI_TRANSITIONS=1436} [2023-11-29 03:59:36,719 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 215 predicate places. [2023-11-29 03:59:36,719 INFO L495 AbstractCegarLoop]: Abstraction has has 488 places, 1436 transitions, 22003 flow [2023-11-29 03:59:36,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:36,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:59:36,719 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:36,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 03:59:36,720 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:59:36,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:36,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1235106124, now seen corresponding path program 6 times [2023-11-29 03:59:36,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:36,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040968646] [2023-11-29 03:59:36,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:36,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:59:38,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:38,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040968646] [2023-11-29 03:59:38,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040968646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:38,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:38,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 03:59:38,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710777034] [2023-11-29 03:59:38,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:38,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:59:38,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:38,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:59:38,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:59:41,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 03:59:41,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 488 places, 1436 transitions, 22003 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:41,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:59:41,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 03:59:41,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:59:50,177 INFO L124 PetriNetUnfolderBase]: 5394/19511 cut-off events. [2023-11-29 03:59:50,178 INFO L125 PetriNetUnfolderBase]: For 140237/142770 co-relation queries the response was YES. [2023-11-29 03:59:50,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75789 conditions, 19511 events. 5394/19511 cut-off events. For 140237/142770 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 218825 event pairs, 336 based on Foata normal form. 1516/20328 useless extension candidates. Maximal degree in co-relation 75630. Up to 4447 conditions per place. [2023-11-29 03:59:50,584 INFO L140 encePairwiseOnDemand]: 233/274 looper letters, 792 selfloop transitions, 739 changer transitions 6/1792 dead transitions. [2023-11-29 03:59:50,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 508 places, 1792 transitions, 30095 flow [2023-11-29 03:59:50,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 03:59:50,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 03:59:50,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4209 transitions. [2023-11-29 03:59:50,596 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7314911366006257 [2023-11-29 03:59:50,596 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4209 transitions. [2023-11-29 03:59:50,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4209 transitions. [2023-11-29 03:59:50,598 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:59:50,598 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4209 transitions. [2023-11-29 03:59:50,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 200.42857142857142) internal successors, (4209), 21 states have internal predecessors, (4209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:50,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:50,611 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:50,611 INFO L175 Difference]: Start difference. First operand has 488 places, 1436 transitions, 22003 flow. Second operand 21 states and 4209 transitions. [2023-11-29 03:59:50,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 508 places, 1792 transitions, 30095 flow [2023-11-29 03:59:51,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 1792 transitions, 29843 flow, removed 61 selfloop flow, removed 6 redundant places. [2023-11-29 03:59:51,574 INFO L231 Difference]: Finished difference. Result has 515 places, 1604 transitions, 28169 flow [2023-11-29 03:59:51,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=21778, PETRI_DIFFERENCE_MINUEND_PLACES=482, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=574, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=719, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=28169, PETRI_PLACES=515, PETRI_TRANSITIONS=1604} [2023-11-29 03:59:51,576 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 242 predicate places. [2023-11-29 03:59:51,576 INFO L495 AbstractCegarLoop]: Abstraction has has 515 places, 1604 transitions, 28169 flow [2023-11-29 03:59:51,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:51,576 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:59:51,577 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:59:51,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 03:59:51,577 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 03:59:51,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:59:51,577 INFO L85 PathProgramCache]: Analyzing trace with hash 528670304, now seen corresponding path program 7 times [2023-11-29 03:59:51,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:59:51,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778026015] [2023-11-29 03:59:51,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:59:51,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:59:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:59:53,270 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 03:59:53,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:59:53,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778026015] [2023-11-29 03:59:53,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778026015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:59:53,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:59:53,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 03:59:53,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3434578] [2023-11-29 03:59:53,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:59:53,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:59:53,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:59:53,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:59:53,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:59:56,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 03:59:56,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 1604 transitions, 28169 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:59:56,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:59:56,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 03:59:56,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:00:06,773 INFO L124 PetriNetUnfolderBase]: 5861/21202 cut-off events. [2023-11-29 04:00:06,774 INFO L125 PetriNetUnfolderBase]: For 189015/191877 co-relation queries the response was YES. [2023-11-29 04:00:07,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86111 conditions, 21202 events. 5861/21202 cut-off events. For 189015/191877 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 242603 event pairs, 340 based on Foata normal form. 1518/21959 useless extension candidates. Maximal degree in co-relation 85929. Up to 4859 conditions per place. [2023-11-29 04:00:07,244 INFO L140 encePairwiseOnDemand]: 234/274 looper letters, 739 selfloop transitions, 922 changer transitions 5/1921 dead transitions. [2023-11-29 04:00:07,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 535 places, 1921 transitions, 36266 flow [2023-11-29 04:00:07,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 04:00:07,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 04:00:07,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4196 transitions. [2023-11-29 04:00:07,253 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7292318387208898 [2023-11-29 04:00:07,253 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4196 transitions. [2023-11-29 04:00:07,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4196 transitions. [2023-11-29 04:00:07,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:00:07,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4196 transitions. [2023-11-29 04:00:07,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 199.8095238095238) internal successors, (4196), 21 states have internal predecessors, (4196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:07,381 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:07,382 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:07,382 INFO L175 Difference]: Start difference. First operand has 515 places, 1604 transitions, 28169 flow. Second operand 21 states and 4196 transitions. [2023-11-29 04:00:07,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 535 places, 1921 transitions, 36266 flow [2023-11-29 04:00:08,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 528 places, 1921 transitions, 35957 flow, removed 55 selfloop flow, removed 7 redundant places. [2023-11-29 04:00:08,663 INFO L231 Difference]: Finished difference. Result has 535 places, 1740 transitions, 33982 flow [2023-11-29 04:00:08,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=27883, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=792, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=699, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=33982, PETRI_PLACES=535, PETRI_TRANSITIONS=1740} [2023-11-29 04:00:08,665 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 262 predicate places. [2023-11-29 04:00:08,665 INFO L495 AbstractCegarLoop]: Abstraction has has 535 places, 1740 transitions, 33982 flow [2023-11-29 04:00:08,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:08,666 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:00:08,666 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:08,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-29 04:00:08,666 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:00:08,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:08,666 INFO L85 PathProgramCache]: Analyzing trace with hash 505152942, now seen corresponding path program 8 times [2023-11-29 04:00:08,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:08,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367605855] [2023-11-29 04:00:08,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:08,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:00:10,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:10,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367605855] [2023-11-29 04:00:10,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367605855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:00:10,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:00:10,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 04:00:10,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658992455] [2023-11-29 04:00:10,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:00:10,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:00:10,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:10,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:00:10,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:00:12,853 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 04:00:12,855 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 1740 transitions, 33982 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:12,855 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:00:12,855 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 04:00:12,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:00:24,067 INFO L124 PetriNetUnfolderBase]: 6367/22957 cut-off events. [2023-11-29 04:00:24,068 INFO L125 PetriNetUnfolderBase]: For 240527/244051 co-relation queries the response was YES. [2023-11-29 04:00:24,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97164 conditions, 22957 events. 6367/22957 cut-off events. For 240527/244051 co-relation queries the response was YES. Maximal size of possible extension queue 605. Compared 266517 event pairs, 362 based on Foata normal form. 1934/24073 useless extension candidates. Maximal degree in co-relation 96979. Up to 5280 conditions per place. [2023-11-29 04:00:24,593 INFO L140 encePairwiseOnDemand]: 235/274 looper letters, 752 selfloop transitions, 1026 changer transitions 4/2037 dead transitions. [2023-11-29 04:00:24,594 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 2037 transitions, 42512 flow [2023-11-29 04:00:24,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 04:00:24,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2023-11-29 04:00:24,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3790 transitions. [2023-11-29 04:00:24,602 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7280061467537456 [2023-11-29 04:00:24,602 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3790 transitions. [2023-11-29 04:00:24,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3790 transitions. [2023-11-29 04:00:24,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:00:24,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3790 transitions. [2023-11-29 04:00:24,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 199.47368421052633) internal successors, (3790), 19 states have internal predecessors, (3790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:24,619 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 274.0) internal successors, (5480), 20 states have internal predecessors, (5480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:24,620 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 274.0) internal successors, (5480), 20 states have internal predecessors, (5480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:24,621 INFO L175 Difference]: Start difference. First operand has 535 places, 1740 transitions, 33982 flow. Second operand 19 states and 3790 transitions. [2023-11-29 04:00:24,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 2037 transitions, 42512 flow [2023-11-29 04:00:26,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 2037 transitions, 42210 flow, removed 60 selfloop flow, removed 6 redundant places. [2023-11-29 04:00:26,602 INFO L231 Difference]: Finished difference. Result has 557 places, 1865 transitions, 41170 flow [2023-11-29 04:00:26,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=33693, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1740, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=902, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=727, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=41170, PETRI_PLACES=557, PETRI_TRANSITIONS=1865} [2023-11-29 04:00:26,604 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 284 predicate places. [2023-11-29 04:00:26,604 INFO L495 AbstractCegarLoop]: Abstraction has has 557 places, 1865 transitions, 41170 flow [2023-11-29 04:00:26,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:26,687 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:00:26,688 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:26,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 04:00:26,688 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:00:26,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:26,688 INFO L85 PathProgramCache]: Analyzing trace with hash -373952210, now seen corresponding path program 9 times [2023-11-29 04:00:26,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:26,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818190783] [2023-11-29 04:00:26,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:26,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:28,036 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:00:28,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:28,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818190783] [2023-11-29 04:00:28,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818190783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:00:28,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:00:28,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 04:00:28,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442276283] [2023-11-29 04:00:28,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:00:28,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:00:28,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:28,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:00:28,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:00:31,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 04:00:31,336 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 557 places, 1865 transitions, 41170 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:31,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:00:31,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 04:00:31,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:00:44,477 INFO L124 PetriNetUnfolderBase]: 6886/24775 cut-off events. [2023-11-29 04:00:44,477 INFO L125 PetriNetUnfolderBase]: For 317765/321684 co-relation queries the response was YES. [2023-11-29 04:00:44,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 110004 conditions, 24775 events. 6886/24775 cut-off events. For 317765/321684 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 292100 event pairs, 432 based on Foata normal form. 2126/26002 useless extension candidates. Maximal degree in co-relation 109803. Up to 5721 conditions per place. [2023-11-29 04:00:45,047 INFO L140 encePairwiseOnDemand]: 235/274 looper letters, 871 selfloop transitions, 1077 changer transitions 4/2207 dead transitions. [2023-11-29 04:00:45,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 578 places, 2207 transitions, 51189 flow [2023-11-29 04:00:45,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 04:00:45,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-29 04:00:45,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4379 transitions. [2023-11-29 04:00:45,052 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7264432647644327 [2023-11-29 04:00:45,052 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4379 transitions. [2023-11-29 04:00:45,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4379 transitions. [2023-11-29 04:00:45,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:00:45,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4379 transitions. [2023-11-29 04:00:45,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 199.04545454545453) internal successors, (4379), 22 states have internal predecessors, (4379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:45,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 274.0) internal successors, (6302), 23 states have internal predecessors, (6302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:45,061 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 274.0) internal successors, (6302), 23 states have internal predecessors, (6302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:45,061 INFO L175 Difference]: Start difference. First operand has 557 places, 1865 transitions, 41170 flow. Second operand 22 states and 4379 transitions. [2023-11-29 04:00:45,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 578 places, 2207 transitions, 51189 flow [2023-11-29 04:00:47,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 2207 transitions, 50851 flow, removed 88 selfloop flow, removed 5 redundant places. [2023-11-29 04:00:47,636 INFO L231 Difference]: Finished difference. Result has 583 places, 2005 transitions, 48412 flow [2023-11-29 04:00:47,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=40906, PETRI_DIFFERENCE_MINUEND_PLACES=552, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1865, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=940, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=802, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=48412, PETRI_PLACES=583, PETRI_TRANSITIONS=2005} [2023-11-29 04:00:47,638 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 310 predicate places. [2023-11-29 04:00:47,638 INFO L495 AbstractCegarLoop]: Abstraction has has 583 places, 2005 transitions, 48412 flow [2023-11-29 04:00:47,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:47,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:00:47,638 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:00:47,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-29 04:00:47,639 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:00:47,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:00:47,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1338284788, now seen corresponding path program 10 times [2023-11-29 04:00:47,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:00:47,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088412249] [2023-11-29 04:00:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:00:47,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:00:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:00:49,020 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:00:49,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:00:49,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088412249] [2023-11-29 04:00:49,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088412249] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:00:49,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:00:49,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 04:00:49,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591939654] [2023-11-29 04:00:49,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:00:49,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:00:49,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:00:49,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:00:49,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:00:51,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 04:00:51,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 2005 transitions, 48412 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:00:51,921 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:00:51,921 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 04:00:51,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:01:06,377 INFO L124 PetriNetUnfolderBase]: 7456/26633 cut-off events. [2023-11-29 04:01:06,377 INFO L125 PetriNetUnfolderBase]: For 388024/392155 co-relation queries the response was YES. [2023-11-29 04:01:06,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122522 conditions, 26633 events. 7456/26633 cut-off events. For 388024/392155 co-relation queries the response was YES. Maximal size of possible extension queue 717. Compared 317934 event pairs, 432 based on Foata normal form. 2282/27956 useless extension candidates. Maximal degree in co-relation 122306. Up to 6131 conditions per place. [2023-11-29 04:01:07,191 INFO L140 encePairwiseOnDemand]: 235/274 looper letters, 885 selfloop transitions, 1165 changer transitions 4/2309 dead transitions. [2023-11-29 04:01:07,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 603 places, 2309 transitions, 58221 flow [2023-11-29 04:01:07,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 04:01:07,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 04:01:07,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 4177 transitions. [2023-11-29 04:01:07,196 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7259297879735835 [2023-11-29 04:01:07,196 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 4177 transitions. [2023-11-29 04:01:07,196 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 4177 transitions. [2023-11-29 04:01:07,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:01:07,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 4177 transitions. [2023-11-29 04:01:07,203 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 198.9047619047619) internal successors, (4177), 21 states have internal predecessors, (4177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:01:07,208 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:01:07,209 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:01:07,209 INFO L175 Difference]: Start difference. First operand has 583 places, 2005 transitions, 48412 flow. Second operand 21 states and 4177 transitions. [2023-11-29 04:01:07,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 603 places, 2309 transitions, 58221 flow [2023-11-29 04:01:09,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 598 places, 2309 transitions, 57893 flow, removed 81 selfloop flow, removed 5 redundant places. [2023-11-29 04:01:10,032 INFO L231 Difference]: Finished difference. Result has 605 places, 2130 transitions, 55803 flow [2023-11-29 04:01:10,033 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=48104, PETRI_DIFFERENCE_MINUEND_PLACES=578, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2005, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1043, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=852, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=55803, PETRI_PLACES=605, PETRI_TRANSITIONS=2130} [2023-11-29 04:01:10,034 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 332 predicate places. [2023-11-29 04:01:10,034 INFO L495 AbstractCegarLoop]: Abstraction has has 605 places, 2130 transitions, 55803 flow [2023-11-29 04:01:10,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:01:10,034 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:01:10,034 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:10,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-29 04:01:10,035 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:01:10,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:10,035 INFO L85 PathProgramCache]: Analyzing trace with hash -447178420, now seen corresponding path program 11 times [2023-11-29 04:01:10,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:10,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482995285] [2023-11-29 04:01:10,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:10,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:10,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:11,432 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:01:11,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:11,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482995285] [2023-11-29 04:01:11,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482995285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:01:11,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:01:11,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 04:01:11,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864623026] [2023-11-29 04:01:11,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:01:11,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:01:11,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:11,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:01:11,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:01:13,817 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 04:01:13,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 2130 transitions, 55803 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:01:13,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:01:13,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 04:01:13,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:01:29,918 INFO L124 PetriNetUnfolderBase]: 7932/28382 cut-off events. [2023-11-29 04:01:29,918 INFO L125 PetriNetUnfolderBase]: For 466937/471281 co-relation queries the response was YES. [2023-11-29 04:01:30,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 135699 conditions, 28382 events. 7932/28382 cut-off events. For 466937/471281 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 344077 event pairs, 392 based on Foata normal form. 2145/29522 useless extension candidates. Maximal degree in co-relation 135471. Up to 6573 conditions per place. [2023-11-29 04:01:30,850 INFO L140 encePairwiseOnDemand]: 236/274 looper letters, 1017 selfloop transitions, 1205 changer transitions 3/2480 dead transitions. [2023-11-29 04:01:30,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 628 places, 2480 transitions, 67116 flow [2023-11-29 04:01:30,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 04:01:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-11-29 04:01:30,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4736 transitions. [2023-11-29 04:01:30,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7201946472019465 [2023-11-29 04:01:30,857 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4736 transitions. [2023-11-29 04:01:30,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4736 transitions. [2023-11-29 04:01:30,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:01:30,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4736 transitions. [2023-11-29 04:01:30,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 197.33333333333334) internal successors, (4736), 24 states have internal predecessors, (4736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:01:30,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 274.0) internal successors, (6850), 25 states have internal predecessors, (6850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:01:30,866 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 274.0) internal successors, (6850), 25 states have internal predecessors, (6850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:01:30,866 INFO L175 Difference]: Start difference. First operand has 605 places, 2130 transitions, 55803 flow. Second operand 24 states and 4736 transitions. [2023-11-29 04:01:30,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 628 places, 2480 transitions, 67116 flow [2023-11-29 04:01:34,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 620 places, 2480 transitions, 66811 flow, removed 43 selfloop flow, removed 8 redundant places. [2023-11-29 04:01:34,444 INFO L231 Difference]: Finished difference. Result has 632 places, 2270 transitions, 64710 flow [2023-11-29 04:01:34,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=55512, PETRI_DIFFERENCE_MINUEND_PLACES=597, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1066, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=64710, PETRI_PLACES=632, PETRI_TRANSITIONS=2270} [2023-11-29 04:01:34,446 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 359 predicate places. [2023-11-29 04:01:34,446 INFO L495 AbstractCegarLoop]: Abstraction has has 632 places, 2270 transitions, 64710 flow [2023-11-29 04:01:34,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:01:34,447 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:01:34,447 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:01:34,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-29 04:01:34,447 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:01:34,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:01:34,448 INFO L85 PathProgramCache]: Analyzing trace with hash -332545201, now seen corresponding path program 1 times [2023-11-29 04:01:34,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:01:34,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136118345] [2023-11-29 04:01:34,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:01:34,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:01:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:01:35,667 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:01:35,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:01:35,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136118345] [2023-11-29 04:01:35,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136118345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:01:35,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:01:35,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 04:01:35,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842410284] [2023-11-29 04:01:35,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:01:35,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:01:35,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:01:35,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:01:35,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:01:37,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 274 [2023-11-29 04:01:37,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 2270 transitions, 64710 flow. Second operand has 17 states, 17 states have (on average 176.88235294117646) internal successors, (3007), 17 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:01:37,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:01:37,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 274 [2023-11-29 04:01:37,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:02:06,810 INFO L124 PetriNetUnfolderBase]: 11722/37010 cut-off events. [2023-11-29 04:02:06,811 INFO L125 PetriNetUnfolderBase]: For 622757/624738 co-relation queries the response was YES. [2023-11-29 04:02:07,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 181089 conditions, 37010 events. 11722/37010 cut-off events. For 622757/624738 co-relation queries the response was YES. Maximal size of possible extension queue 899. Compared 445617 event pairs, 2144 based on Foata normal form. 1281/36771 useless extension candidates. Maximal degree in co-relation 180844. Up to 8047 conditions per place. [2023-11-29 04:02:07,915 INFO L140 encePairwiseOnDemand]: 246/274 looper letters, 1309 selfloop transitions, 609 changer transitions 1/2659 dead transitions. [2023-11-29 04:02:07,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 652 places, 2659 transitions, 76363 flow [2023-11-29 04:02:07,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 04:02:07,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 04:02:07,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3892 transitions. [2023-11-29 04:02:07,919 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6763990267639902 [2023-11-29 04:02:07,919 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3892 transitions. [2023-11-29 04:02:07,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3892 transitions. [2023-11-29 04:02:07,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:02:07,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3892 transitions. [2023-11-29 04:02:07,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 185.33333333333334) internal successors, (3892), 21 states have internal predecessors, (3892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:02:07,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:02:07,929 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 274.0) internal successors, (6028), 22 states have internal predecessors, (6028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:02:07,929 INFO L175 Difference]: Start difference. First operand has 632 places, 2270 transitions, 64710 flow. Second operand 21 states and 3892 transitions. [2023-11-29 04:02:07,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 652 places, 2659 transitions, 76363 flow [2023-11-29 04:02:13,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 2659 transitions, 75755 flow, removed 146 selfloop flow, removed 7 redundant places. [2023-11-29 04:02:13,215 INFO L231 Difference]: Finished difference. Result has 649 places, 2384 transitions, 69552 flow [2023-11-29 04:02:13,217 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=64277, PETRI_DIFFERENCE_MINUEND_PLACES=625, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=496, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1745, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=69552, PETRI_PLACES=649, PETRI_TRANSITIONS=2384} [2023-11-29 04:02:13,217 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 376 predicate places. [2023-11-29 04:02:13,217 INFO L495 AbstractCegarLoop]: Abstraction has has 649 places, 2384 transitions, 69552 flow [2023-11-29 04:02:13,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 176.88235294117646) internal successors, (3007), 17 states have internal predecessors, (3007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:02:13,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:02:13,218 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:02:13,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-29 04:02:13,219 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:02:13,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:13,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1816203682, now seen corresponding path program 12 times [2023-11-29 04:02:13,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:13,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999637729] [2023-11-29 04:02:13,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:13,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:02:14,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:14,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999637729] [2023-11-29 04:02:14,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999637729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:02:14,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:02:14,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 04:02:14,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122122760] [2023-11-29 04:02:14,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:02:14,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:02:14,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:14,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:02:14,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:02:16,849 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 04:02:16,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 649 places, 2384 transitions, 69552 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:02:16,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:02:16,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 04:02:16,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:02:35,819 INFO L124 PetriNetUnfolderBase]: 8590/30586 cut-off events. [2023-11-29 04:02:35,819 INFO L125 PetriNetUnfolderBase]: For 628509/633367 co-relation queries the response was YES. [2023-11-29 04:02:36,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160391 conditions, 30586 events. 8590/30586 cut-off events. For 628509/633367 co-relation queries the response was YES. Maximal size of possible extension queue 821. Compared 374889 event pairs, 437 based on Foata normal form. 2363/31912 useless extension candidates. Maximal degree in co-relation 160138. Up to 7011 conditions per place. [2023-11-29 04:02:36,759 INFO L140 encePairwiseOnDemand]: 236/274 looper letters, 1035 selfloop transitions, 1389 changer transitions 3/2690 dead transitions. [2023-11-29 04:02:36,760 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 2690 transitions, 81217 flow [2023-11-29 04:02:36,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 04:02:36,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2023-11-29 04:02:36,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 4335 transitions. [2023-11-29 04:02:36,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.71914399469144 [2023-11-29 04:02:36,763 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 4335 transitions. [2023-11-29 04:02:36,764 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 4335 transitions. [2023-11-29 04:02:36,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:02:36,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 4335 transitions. [2023-11-29 04:02:36,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 197.04545454545453) internal successors, (4335), 22 states have internal predecessors, (4335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:02:36,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 274.0) internal successors, (6302), 23 states have internal predecessors, (6302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:02:36,771 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 274.0) internal successors, (6302), 23 states have internal predecessors, (6302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:02:36,771 INFO L175 Difference]: Start difference. First operand has 649 places, 2384 transitions, 69552 flow. Second operand 22 states and 4335 transitions. [2023-11-29 04:02:36,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 670 places, 2690 transitions, 81217 flow [2023-11-29 04:02:40,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 2690 transitions, 80861 flow, removed 24 selfloop flow, removed 10 redundant places. [2023-11-29 04:02:41,055 INFO L231 Difference]: Finished difference. Result has 667 places, 2517 transitions, 79497 flow [2023-11-29 04:02:41,057 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=69250, PETRI_DIFFERENCE_MINUEND_PLACES=639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1257, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1012, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=79497, PETRI_PLACES=667, PETRI_TRANSITIONS=2517} [2023-11-29 04:02:41,057 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 394 predicate places. [2023-11-29 04:02:41,057 INFO L495 AbstractCegarLoop]: Abstraction has has 667 places, 2517 transitions, 79497 flow [2023-11-29 04:02:41,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:02:41,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:02:41,058 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:02:41,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 04:02:41,058 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:02:41,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:02:41,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1822162800, now seen corresponding path program 13 times [2023-11-29 04:02:41,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:02:41,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347832274] [2023-11-29 04:02:41,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:02:41,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:02:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:02:42,353 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:02:42,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:02:42,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347832274] [2023-11-29 04:02:42,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347832274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:02:42,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:02:42,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-11-29 04:02:42,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090828279] [2023-11-29 04:02:42,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:02:42,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 04:02:42,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:02:42,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 04:02:42,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:02:44,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 274 [2023-11-29 04:02:44,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 667 places, 2517 transitions, 79497 flow. Second operand has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:02:44,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:02:44,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 274 [2023-11-29 04:02:44,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:03:07,197 INFO L124 PetriNetUnfolderBase]: 9106/32318 cut-off events. [2023-11-29 04:03:07,198 INFO L125 PetriNetUnfolderBase]: For 762679/767959 co-relation queries the response was YES. [2023-11-29 04:03:08,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175232 conditions, 32318 events. 9106/32318 cut-off events. For 762679/767959 co-relation queries the response was YES. Maximal size of possible extension queue 870. Compared 399755 event pairs, 474 based on Foata normal form. 2530/33748 useless extension candidates. Maximal degree in co-relation 174971. Up to 7312 conditions per place. [2023-11-29 04:03:08,248 INFO L140 encePairwiseOnDemand]: 236/274 looper letters, 1136 selfloop transitions, 1432 changer transitions 3/2834 dead transitions. [2023-11-29 04:03:08,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 689 places, 2834 transitions, 91986 flow [2023-11-29 04:03:08,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 04:03:08,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2023-11-29 04:03:08,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 4536 transitions. [2023-11-29 04:03:08,252 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7197715011107585 [2023-11-29 04:03:08,252 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 4536 transitions. [2023-11-29 04:03:08,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 4536 transitions. [2023-11-29 04:03:08,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:03:08,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 4536 transitions. [2023-11-29 04:03:08,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 197.2173913043478) internal successors, (4536), 23 states have internal predecessors, (4536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:08,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 274.0) internal successors, (6576), 24 states have internal predecessors, (6576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:08,265 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 274.0) internal successors, (6576), 24 states have internal predecessors, (6576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:08,265 INFO L175 Difference]: Start difference. First operand has 667 places, 2517 transitions, 79497 flow. Second operand 23 states and 4536 transitions. [2023-11-29 04:03:08,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 689 places, 2834 transitions, 91986 flow [2023-11-29 04:03:13,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 679 places, 2834 transitions, 91549 flow, removed 59 selfloop flow, removed 10 redundant places. [2023-11-29 04:03:13,333 INFO L231 Difference]: Finished difference. Result has 689 places, 2647 transitions, 89814 flow [2023-11-29 04:03:13,335 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=79085, PETRI_DIFFERENCE_MINUEND_PLACES=657, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1303, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=89814, PETRI_PLACES=689, PETRI_TRANSITIONS=2647} [2023-11-29 04:03:13,336 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 416 predicate places. [2023-11-29 04:03:13,336 INFO L495 AbstractCegarLoop]: Abstraction has has 689 places, 2647 transitions, 89814 flow [2023-11-29 04:03:13,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 190.76470588235293) internal successors, (3243), 17 states have internal predecessors, (3243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:13,336 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:03:13,336 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:03:13,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 04:03:13,337 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:03:13,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:03:13,337 INFO L85 PathProgramCache]: Analyzing trace with hash 59576211, now seen corresponding path program 1 times [2023-11-29 04:03:13,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:03:13,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637520003] [2023-11-29 04:03:13,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:03:13,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:03:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:03:13,904 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:03:13,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:03:13,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637520003] [2023-11-29 04:03:13,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637520003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:03:13,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:03:13,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:03:13,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242687927] [2023-11-29 04:03:13,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:03:13,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:03:13,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:03:13,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:03:13,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:03:14,203 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 274 [2023-11-29 04:03:14,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 689 places, 2647 transitions, 89814 flow. Second operand has 6 states, 6 states have (on average 198.66666666666666) internal successors, (1192), 6 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:14,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:03:14,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 274 [2023-11-29 04:03:14,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:03:55,242 INFO L124 PetriNetUnfolderBase]: 14316/44845 cut-off events. [2023-11-29 04:03:55,242 INFO L125 PetriNetUnfolderBase]: For 892374/893897 co-relation queries the response was YES. [2023-11-29 04:03:56,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 226999 conditions, 44845 events. 14316/44845 cut-off events. For 892374/893897 co-relation queries the response was YES. Maximal size of possible extension queue 1115. Compared 558350 event pairs, 2764 based on Foata normal form. 901/44015 useless extension candidates. Maximal degree in co-relation 226726. Up to 19838 conditions per place. [2023-11-29 04:03:56,843 INFO L140 encePairwiseOnDemand]: 255/274 looper letters, 1182 selfloop transitions, 314 changer transitions 0/2826 dead transitions. [2023-11-29 04:03:56,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 694 places, 2826 transitions, 96127 flow [2023-11-29 04:03:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:03:56,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:03:56,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1288 transitions. [2023-11-29 04:03:56,845 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7834549878345499 [2023-11-29 04:03:56,845 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1288 transitions. [2023-11-29 04:03:56,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1288 transitions. [2023-11-29 04:03:56,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:03:56,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1288 transitions. [2023-11-29 04:03:56,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 214.66666666666666) internal successors, (1288), 6 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:56,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:56,848 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 274.0) internal successors, (1918), 7 states have internal predecessors, (1918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:03:56,848 INFO L175 Difference]: Start difference. First operand has 689 places, 2647 transitions, 89814 flow. Second operand 6 states and 1288 transitions. [2023-11-29 04:03:56,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 694 places, 2826 transitions, 96127 flow [2023-11-29 04:04:04,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 685 places, 2826 transitions, 95521 flow, removed 153 selfloop flow, removed 9 redundant places. [2023-11-29 04:04:05,077 INFO L231 Difference]: Finished difference. Result has 690 places, 2818 transitions, 93945 flow [2023-11-29 04:04:05,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=89316, PETRI_DIFFERENCE_MINUEND_PLACES=680, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2647, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=93945, PETRI_PLACES=690, PETRI_TRANSITIONS=2818} [2023-11-29 04:04:05,080 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 417 predicate places. [2023-11-29 04:04:05,080 INFO L495 AbstractCegarLoop]: Abstraction has has 690 places, 2818 transitions, 93945 flow [2023-11-29 04:04:05,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.66666666666666) internal successors, (1192), 6 states have internal predecessors, (1192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:04:05,080 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:04:05,081 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:04:05,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 04:04:05,081 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:04:05,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:04:05,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1898297671, now seen corresponding path program 1 times [2023-11-29 04:04:05,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:04:05,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770720953] [2023-11-29 04:04:05,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:04:05,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:04:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:04:07,605 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:04:07,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:04:07,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770720953] [2023-11-29 04:04:07,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770720953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:04:07,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:04:07,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2023-11-29 04:04:07,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076734422] [2023-11-29 04:04:07,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:04:07,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 04:04:07,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:04:07,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 04:04:07,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=774, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:04:16,345 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 274 [2023-11-29 04:04:16,347 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 690 places, 2818 transitions, 93945 flow. Second operand has 30 states, 30 states have (on average 163.86666666666667) internal successors, (4916), 30 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:04:16,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:04:16,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 274 [2023-11-29 04:04:16,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:04:58,989 INFO L124 PetriNetUnfolderBase]: 14344/45140 cut-off events. [2023-11-29 04:04:58,989 INFO L125 PetriNetUnfolderBase]: For 1109365/1110816 co-relation queries the response was YES. [2023-11-29 04:05:00,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258634 conditions, 45140 events. 14344/45140 cut-off events. For 1109365/1110816 co-relation queries the response was YES. Maximal size of possible extension queue 1186. Compared 559820 event pairs, 828 based on Foata normal form. 844/44900 useless extension candidates. Maximal degree in co-relation 258308. Up to 9060 conditions per place. [2023-11-29 04:05:00,633 INFO L140 encePairwiseOnDemand]: 217/274 looper letters, 2380 selfloop transitions, 865 changer transitions 7/3784 dead transitions. [2023-11-29 04:05:00,633 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 730 places, 3784 transitions, 129421 flow [2023-11-29 04:05:00,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-11-29 04:05:00,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2023-11-29 04:05:00,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 6967 transitions. [2023-11-29 04:05:00,641 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6201709097382945 [2023-11-29 04:05:00,641 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 6967 transitions. [2023-11-29 04:05:00,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 6967 transitions. [2023-11-29 04:05:00,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:05:00,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 6967 transitions. [2023-11-29 04:05:00,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 169.9268292682927) internal successors, (6967), 41 states have internal predecessors, (6967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:05:00,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 274.0) internal successors, (11508), 42 states have internal predecessors, (11508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:05:00,661 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 274.0) internal successors, (11508), 42 states have internal predecessors, (11508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:05:00,661 INFO L175 Difference]: Start difference. First operand has 690 places, 2818 transitions, 93945 flow. Second operand 41 states and 6967 transitions. [2023-11-29 04:05:00,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 730 places, 3784 transitions, 129421 flow [2023-11-29 04:05:09,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 730 places, 3784 transitions, 128909 flow, removed 256 selfloop flow, removed 0 redundant places. [2023-11-29 04:05:09,271 INFO L231 Difference]: Finished difference. Result has 742 places, 3039 transitions, 102923 flow [2023-11-29 04:05:09,273 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=93521, PETRI_DIFFERENCE_MINUEND_PLACES=690, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2818, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=687, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2010, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=102923, PETRI_PLACES=742, PETRI_TRANSITIONS=3039} [2023-11-29 04:05:09,273 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 469 predicate places. [2023-11-29 04:05:09,274 INFO L495 AbstractCegarLoop]: Abstraction has has 742 places, 3039 transitions, 102923 flow [2023-11-29 04:05:09,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 163.86666666666667) internal successors, (4916), 30 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:05:09,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:05:09,274 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:05:09,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 04:05:09,275 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:05:09,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:05:09,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1386857163, now seen corresponding path program 2 times [2023-11-29 04:05:09,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:05:09,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225407082] [2023-11-29 04:05:09,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:05:09,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:05:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:05:11,925 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:05:11,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:05:11,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225407082] [2023-11-29 04:05:11,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225407082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:05:11,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:05:11,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2023-11-29 04:05:11,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446051767] [2023-11-29 04:05:11,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:05:11,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 04:05:11,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:05:11,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 04:05:11,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:05:19,664 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 274 [2023-11-29 04:05:19,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 742 places, 3039 transitions, 102923 flow. Second operand has 30 states, 30 states have (on average 163.86666666666667) internal successors, (4916), 30 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:05:19,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:05:19,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 274 [2023-11-29 04:05:19,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:06:07,905 INFO L124 PetriNetUnfolderBase]: 16687/52070 cut-off events. [2023-11-29 04:06:07,905 INFO L125 PetriNetUnfolderBase]: For 1284578/1286184 co-relation queries the response was YES. [2023-11-29 04:06:09,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314081 conditions, 52070 events. 16687/52070 cut-off events. For 1284578/1286184 co-relation queries the response was YES. Maximal size of possible extension queue 1328. Compared 656136 event pairs, 936 based on Foata normal form. 1239/51946 useless extension candidates. Maximal degree in co-relation 313740. Up to 10295 conditions per place. [2023-11-29 04:06:09,996 INFO L140 encePairwiseOnDemand]: 217/274 looper letters, 3168 selfloop transitions, 700 changer transitions 4/4404 dead transitions. [2023-11-29 04:06:09,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 4404 transitions, 154567 flow [2023-11-29 04:06:09,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-11-29 04:06:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-11-29 04:06:10,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 8088 transitions. [2023-11-29 04:06:10,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.614963503649635 [2023-11-29 04:06:10,002 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 8088 transitions. [2023-11-29 04:06:10,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 8088 transitions. [2023-11-29 04:06:10,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:06:10,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 8088 transitions. [2023-11-29 04:06:10,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 168.5) internal successors, (8088), 48 states have internal predecessors, (8088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:06:10,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 274.0) internal successors, (13426), 49 states have internal predecessors, (13426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:06:10,018 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 274.0) internal successors, (13426), 49 states have internal predecessors, (13426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:06:10,018 INFO L175 Difference]: Start difference. First operand has 742 places, 3039 transitions, 102923 flow. Second operand 48 states and 8088 transitions. [2023-11-29 04:06:10,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 789 places, 4404 transitions, 154567 flow [2023-11-29 04:06:21,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 768 places, 4404 transitions, 154414 flow, removed 54 selfloop flow, removed 21 redundant places. [2023-11-29 04:06:22,071 INFO L231 Difference]: Finished difference. Result has 786 places, 3499 transitions, 119076 flow [2023-11-29 04:06:22,074 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=102856, PETRI_DIFFERENCE_MINUEND_PLACES=721, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2512, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=119076, PETRI_PLACES=786, PETRI_TRANSITIONS=3499} [2023-11-29 04:06:22,075 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 513 predicate places. [2023-11-29 04:06:22,075 INFO L495 AbstractCegarLoop]: Abstraction has has 786 places, 3499 transitions, 119076 flow [2023-11-29 04:06:22,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 163.86666666666667) internal successors, (4916), 30 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:06:22,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:06:22,076 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:06:22,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 04:06:22,076 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:06:22,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:06:22,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1181412841, now seen corresponding path program 3 times [2023-11-29 04:06:22,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:06:22,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258740724] [2023-11-29 04:06:22,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:06:22,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:06:22,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:06:24,346 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:06:24,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:06:24,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258740724] [2023-11-29 04:06:24,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258740724] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:06:24,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:06:24,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2023-11-29 04:06:24,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57178607] [2023-11-29 04:06:24,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:06:24,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 04:06:24,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:06:24,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 04:06:24,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:06:36,020 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 274 [2023-11-29 04:06:36,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 786 places, 3499 transitions, 119076 flow. Second operand has 30 states, 30 states have (on average 163.86666666666667) internal successors, (4916), 30 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:06:36,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:06:36,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 274 [2023-11-29 04:06:36,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:07:36,951 INFO L124 PetriNetUnfolderBase]: 16709/51514 cut-off events. [2023-11-29 04:07:36,951 INFO L125 PetriNetUnfolderBase]: For 1371084/1373071 co-relation queries the response was YES. [2023-11-29 04:07:38,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 332915 conditions, 51514 events. 16709/51514 cut-off events. For 1371084/1373071 co-relation queries the response was YES. Maximal size of possible extension queue 1331. Compared 644578 event pairs, 837 based on Foata normal form. 1235/51540 useless extension candidates. Maximal degree in co-relation 332555. Up to 10322 conditions per place. [2023-11-29 04:07:39,189 INFO L140 encePairwiseOnDemand]: 217/274 looper letters, 2634 selfloop transitions, 1026 changer transitions 7/4199 dead transitions. [2023-11-29 04:07:39,189 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 827 places, 4199 transitions, 148016 flow [2023-11-29 04:07:39,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-29 04:07:39,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2023-11-29 04:07:39,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 7132 transitions. [2023-11-29 04:07:39,195 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6197427876259993 [2023-11-29 04:07:39,195 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 7132 transitions. [2023-11-29 04:07:39,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 7132 transitions. [2023-11-29 04:07:39,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:07:39,197 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 7132 transitions. [2023-11-29 04:07:39,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 169.8095238095238) internal successors, (7132), 42 states have internal predecessors, (7132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:07:39,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 274.0) internal successors, (11782), 43 states have internal predecessors, (11782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:07:39,220 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 274.0) internal successors, (11782), 43 states have internal predecessors, (11782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:07:39,220 INFO L175 Difference]: Start difference. First operand has 786 places, 3499 transitions, 119076 flow. Second operand 42 states and 7132 transitions. [2023-11-29 04:07:39,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 827 places, 4199 transitions, 148016 flow [2023-11-29 04:07:55,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 802 places, 4199 transitions, 147419 flow, removed 143 selfloop flow, removed 25 redundant places. [2023-11-29 04:07:55,981 INFO L231 Difference]: Finished difference. Result has 809 places, 3531 transitions, 122678 flow [2023-11-29 04:07:55,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=118626, PETRI_DIFFERENCE_MINUEND_PLACES=761, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=995, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2486, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=122678, PETRI_PLACES=809, PETRI_TRANSITIONS=3531} [2023-11-29 04:07:55,984 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 536 predicate places. [2023-11-29 04:07:55,984 INFO L495 AbstractCegarLoop]: Abstraction has has 809 places, 3531 transitions, 122678 flow [2023-11-29 04:07:55,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 163.86666666666667) internal successors, (4916), 30 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:07:55,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:07:55,985 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:07:55,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 04:07:55,985 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:07:55,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:07:55,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1107255989, now seen corresponding path program 4 times [2023-11-29 04:07:55,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:07:55,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011854248] [2023-11-29 04:07:55,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:07:55,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:07:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:07:58,426 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:07:58,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:07:58,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011854248] [2023-11-29 04:07:58,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011854248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:07:58,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:07:58,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2023-11-29 04:07:58,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298882093] [2023-11-29 04:07:58,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:07:58,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 04:07:58,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:07:58,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 04:07:58,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:08:07,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 274 [2023-11-29 04:08:07,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 809 places, 3531 transitions, 122678 flow. Second operand has 30 states, 30 states have (on average 163.86666666666667) internal successors, (4916), 30 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:08:07,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:08:07,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 274 [2023-11-29 04:08:07,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:09:16,321 INFO L124 PetriNetUnfolderBase]: 17362/53171 cut-off events. [2023-11-29 04:09:16,321 INFO L125 PetriNetUnfolderBase]: For 1472784/1474868 co-relation queries the response was YES. [2023-11-29 04:09:18,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355813 conditions, 53171 events. 17362/53171 cut-off events. For 1472784/1474868 co-relation queries the response was YES. Maximal size of possible extension queue 1398. Compared 666470 event pairs, 1110 based on Foata normal form. 1376/53279 useless extension candidates. Maximal degree in co-relation 355447. Up to 10824 conditions per place. [2023-11-29 04:09:18,914 INFO L140 encePairwiseOnDemand]: 217/274 looper letters, 3129 selfloop transitions, 802 changer transitions 4/4467 dead transitions. [2023-11-29 04:09:18,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 854 places, 4467 transitions, 161472 flow [2023-11-29 04:09:18,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-11-29 04:09:18,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2023-11-29 04:09:18,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 7756 transitions. [2023-11-29 04:09:18,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6153602031101237 [2023-11-29 04:09:18,920 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 7756 transitions. [2023-11-29 04:09:18,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 7756 transitions. [2023-11-29 04:09:18,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:09:18,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 7756 transitions. [2023-11-29 04:09:18,927 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 168.6086956521739) internal successors, (7756), 46 states have internal predecessors, (7756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:09:18,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 274.0) internal successors, (12878), 47 states have internal predecessors, (12878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:09:18,936 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 274.0) internal successors, (12878), 47 states have internal predecessors, (12878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:09:18,936 INFO L175 Difference]: Start difference. First operand has 809 places, 3531 transitions, 122678 flow. Second operand 46 states and 7756 transitions. [2023-11-29 04:09:18,936 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 854 places, 4467 transitions, 161472 flow [2023-11-29 04:09:38,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 823 places, 4467 transitions, 160581 flow, removed 7 selfloop flow, removed 31 redundant places. [2023-11-29 04:09:38,835 INFO L231 Difference]: Finished difference. Result has 837 places, 3834 transitions, 136932 flow [2023-11-29 04:09:38,838 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=121857, PETRI_DIFFERENCE_MINUEND_PLACES=778, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3531, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=508, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2822, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=136932, PETRI_PLACES=837, PETRI_TRANSITIONS=3834} [2023-11-29 04:09:38,838 INFO L281 CegarLoopForPetriNet]: 273 programPoint places, 564 predicate places. [2023-11-29 04:09:38,838 INFO L495 AbstractCegarLoop]: Abstraction has has 837 places, 3834 transitions, 136932 flow [2023-11-29 04:09:38,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 163.86666666666667) internal successors, (4916), 30 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:09:38,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:09:38,839 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:09:38,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 04:09:38,839 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-29 04:09:38,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:09:38,839 INFO L85 PathProgramCache]: Analyzing trace with hash 285304569, now seen corresponding path program 5 times [2023-11-29 04:09:38,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:09:38,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505688176] [2023-11-29 04:09:38,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:09:38,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:09:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:09:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:09:41,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:09:41,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505688176] [2023-11-29 04:09:41,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505688176] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:09:41,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:09:41,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2023-11-29 04:09:41,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878522028] [2023-11-29 04:09:41,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:09:41,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-29 04:09:41,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:09:41,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-29 04:09:41,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=780, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:09:50,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 274 [2023-11-29 04:09:50,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 837 places, 3834 transitions, 136932 flow. Second operand has 30 states, 30 states have (on average 163.86666666666667) internal successors, (4916), 30 states have internal predecessors, (4916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:09:50,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:09:50,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 274 [2023-11-29 04:09:50,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand