./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/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_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/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_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/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 e4a3fff277216174585e9d802eee36c2b619da26d56e48ed5261f2ab62942b7a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:44:46,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:44:46,625 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-28 23:44:46,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:44:46,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:44:46,653 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:44:46,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:44:46,654 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:44:46,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:44:46,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:44:46,657 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:44:46,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:44:46,657 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:44:46,658 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:44:46,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:44:46,659 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 23:44:46,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:44:46,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 23:44:46,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:44:46,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:44:46,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:44:46,662 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:44:46,663 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-28 23:44:46,663 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:44:46,664 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 23:44:46,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:44:46,665 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:44:46,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:44:46,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:44:46,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:44:46,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:44:46,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:44:46,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:44:46,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:44:46,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:44:46,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:44:46,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:44:46,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:44:46,669 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:44:46,669 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:44:46,669 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:44:46,670 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_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4a3fff277216174585e9d802eee36c2b619da26d56e48ed5261f2ab62942b7a [2023-11-28 23:44:46,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:44:46,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:44:46,925 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:44:46,926 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:44:46,927 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:44:46,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i [2023-11-28 23:44:49,623 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:44:49,892 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:44:49,892 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/sv-benchmarks/c/goblint-regression/09-regions_19-nested_nr.i [2023-11-28 23:44:49,912 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/data/e5e89e2e1/000b3b4ce43a44708a0b071c2f56165c/FLAGd148653e6 [2023-11-28 23:44:49,927 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/data/e5e89e2e1/000b3b4ce43a44708a0b071c2f56165c [2023-11-28 23:44:49,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:44:49,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:44:49,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:44:49,932 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:44:49,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:44:49,937 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:49" (1/1) ... [2023-11-28 23:44:49,938 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7994fb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:49, skipping insertion in model container [2023-11-28 23:44:49,938 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:44:49" (1/1) ... [2023-11-28 23:44:50,005 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:44:50,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:44:50,633 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:44:50,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:44:50,785 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:44:50,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50 WrapperNode [2023-11-28 23:44:50,786 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:44:50,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:44:50,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:44:50,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:44:50,795 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (1/1) ... [2023-11-28 23:44:50,818 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (1/1) ... [2023-11-28 23:44:50,856 INFO L138 Inliner]: procedures = 371, calls = 31, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 243 [2023-11-28 23:44:50,856 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:44:50,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:44:50,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:44:50,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:44:50,866 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (1/1) ... [2023-11-28 23:44:50,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (1/1) ... [2023-11-28 23:44:50,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (1/1) ... [2023-11-28 23:44:50,874 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (1/1) ... [2023-11-28 23:44:50,897 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (1/1) ... [2023-11-28 23:44:50,901 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (1/1) ... [2023-11-28 23:44:50,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (1/1) ... [2023-11-28 23:44:50,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (1/1) ... [2023-11-28 23:44:50,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:44:50,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:44:50,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:44:50,915 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:44:50,916 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (1/1) ... [2023-11-28 23:44:50,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:44:50,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:44:50,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:44:50,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:44:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:44:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-28 23:44:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:44:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-28 23:44:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-28 23:44:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-28 23:44:50,981 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-28 23:44:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 23:44:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:44:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-28 23:44:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-28 23:44:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-28 23:44:50,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:44:50,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:44:50,984 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 23:44:51,137 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:44:51,138 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:44:51,600 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:44:51,625 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:44:51,625 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-28 23:44:51,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:51 BoogieIcfgContainer [2023-11-28 23:44:51,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:44:51,630 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:44:51,630 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:44:51,633 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:44:51,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:44:49" (1/3) ... [2023-11-28 23:44:51,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b1ef33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:44:51, skipping insertion in model container [2023-11-28 23:44:51,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:44:50" (2/3) ... [2023-11-28 23:44:51,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b1ef33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:44:51, skipping insertion in model container [2023-11-28 23:44:51,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:44:51" (3/3) ... [2023-11-28 23:44:51,636 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_19-nested_nr.i [2023-11-28 23:44:51,645 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-28 23:44:51,653 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:44:51,653 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-28 23:44:51,653 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 23:44:51,744 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-28 23:44:51,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 282 transitions, 568 flow [2023-11-28 23:44:51,879 INFO L124 PetriNetUnfolderBase]: 6/281 cut-off events. [2023-11-28 23:44:51,879 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 23:44:51,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 281 events. 6/281 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 406 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 152. Up to 2 conditions per place. [2023-11-28 23:44:51,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 280 places, 282 transitions, 568 flow [2023-11-28 23:44:51,893 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 279 places, 281 transitions, 565 flow [2023-11-28 23:44:51,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:44:51,912 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;@5bd450c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:44:51,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-28 23:44:51,925 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 23:44:51,925 INFO L124 PetriNetUnfolderBase]: 4/69 cut-off events. [2023-11-28 23:44:51,925 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 23:44:51,926 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:44:51,926 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] [2023-11-28 23:44:51,927 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:44:51,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:51,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1238906591, now seen corresponding path program 1 times [2023-11-28 23:44:51,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:44:51,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285257856] [2023-11-28 23:44:51,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:51,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:44:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:52,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:44:52,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:44:52,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285257856] [2023-11-28 23:44:52,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285257856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:44:52,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:44:52,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:44:52,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9083378] [2023-11-28 23:44:52,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:44:52,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:44:52,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:44:52,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:44:52,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:44:52,298 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 282 [2023-11-28 23:44:52,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 281 transitions, 565 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:52,303 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:44:52,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 282 [2023-11-28 23:44:52,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:44:52,394 INFO L124 PetriNetUnfolderBase]: 8/359 cut-off events. [2023-11-28 23:44:52,394 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 23:44:52,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 388 conditions, 359 events. 8/359 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 877 event pairs, 6 based on Foata normal form. 6/334 useless extension candidates. Maximal degree in co-relation 222. Up to 24 conditions per place. [2023-11-28 23:44:52,398 INFO L140 encePairwiseOnDemand]: 275/282 looper letters, 10 selfloop transitions, 2 changer transitions 1/278 dead transitions. [2023-11-28 23:44:52,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 278 transitions, 583 flow [2023-11-28 23:44:52,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:44:52,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:44:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 819 transitions. [2023-11-28 23:44:52,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9680851063829787 [2023-11-28 23:44:52,418 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 819 transitions. [2023-11-28 23:44:52,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 819 transitions. [2023-11-28 23:44:52,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:44:52,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 819 transitions. [2023-11-28 23:44:52,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:52,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:52,441 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:52,443 INFO L175 Difference]: Start difference. First operand has 279 places, 281 transitions, 565 flow. Second operand 3 states and 819 transitions. [2023-11-28 23:44:52,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 278 transitions, 583 flow [2023-11-28 23:44:52,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 278 transitions, 582 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 23:44:52,457 INFO L231 Difference]: Finished difference. Result has 281 places, 277 transitions, 566 flow [2023-11-28 23:44:52,459 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=566, PETRI_PLACES=281, PETRI_TRANSITIONS=277} [2023-11-28 23:44:52,462 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 2 predicate places. [2023-11-28 23:44:52,463 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 277 transitions, 566 flow [2023-11-28 23:44:52,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:52,464 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:44:52,464 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:44:52,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 23:44:52,465 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:44:52,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:52,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1028145036, now seen corresponding path program 1 times [2023-11-28 23:44:52,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:44:52,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026005615] [2023-11-28 23:44:52,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:52,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:44:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:44:52,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:44:52,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026005615] [2023-11-28 23:44:52,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026005615] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:44:52,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720385090] [2023-11-28 23:44:52,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:52,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:44:52,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:44:52,627 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:44:52,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 23:44:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:52,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:44:52,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:44:52,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:44:52,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:44:52,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:44:52,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720385090] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:44:52,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:44:52,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-28 23:44:52,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138985453] [2023-11-28 23:44:52,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:44:52,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:44:52,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:44:52,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:44:52,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:44:52,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 282 [2023-11-28 23:44:52,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 277 transitions, 566 flow. Second operand has 10 states, 10 states have (on average 265.8) internal successors, (2658), 10 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:52,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:44:52,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 282 [2023-11-28 23:44:52,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:44:53,011 INFO L124 PetriNetUnfolderBase]: 8/365 cut-off events. [2023-11-28 23:44:53,011 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 23:44:53,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 365 events. 8/365 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 874 event pairs, 6 based on Foata normal form. 2/337 useless extension candidates. Maximal degree in co-relation 387. Up to 24 conditions per place. [2023-11-28 23:44:53,014 INFO L140 encePairwiseOnDemand]: 276/282 looper letters, 14 selfloop transitions, 9 changer transitions 0/285 dead transitions. [2023-11-28 23:44:53,014 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 285 transitions, 630 flow [2023-11-28 23:44:53,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:44:53,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-28 23:44:53,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2401 transitions. [2023-11-28 23:44:53,022 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.94602048857368 [2023-11-28 23:44:53,022 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2401 transitions. [2023-11-28 23:44:53,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2401 transitions. [2023-11-28 23:44:53,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:44:53,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2401 transitions. [2023-11-28 23:44:53,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 266.77777777777777) internal successors, (2401), 9 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:53,037 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 282.0) internal successors, (2820), 10 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:53,038 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 282.0) internal successors, (2820), 10 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:53,039 INFO L175 Difference]: Start difference. First operand has 281 places, 277 transitions, 566 flow. Second operand 9 states and 2401 transitions. [2023-11-28 23:44:53,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 285 transitions, 630 flow [2023-11-28 23:44:53,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 285 transitions, 628 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 23:44:53,045 INFO L231 Difference]: Finished difference. Result has 290 places, 283 transitions, 614 flow [2023-11-28 23:44:53,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=564, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=277, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=614, PETRI_PLACES=290, PETRI_TRANSITIONS=283} [2023-11-28 23:44:53,046 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 11 predicate places. [2023-11-28 23:44:53,046 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 283 transitions, 614 flow [2023-11-28 23:44:53,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 265.8) internal successors, (2658), 10 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:53,049 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:44:53,049 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] [2023-11-28 23:44:53,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:44:53,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:44:53,250 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:44:53,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:53,251 INFO L85 PathProgramCache]: Analyzing trace with hash 379162772, now seen corresponding path program 2 times [2023-11-28 23:44:53,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:44:53,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134588834] [2023-11-28 23:44:53,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:53,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:44:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:53,454 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:44:53,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:44:53,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134588834] [2023-11-28 23:44:53,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134588834] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:44:53,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796611375] [2023-11-28 23:44:53,456 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:44:53,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:44:53,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:44:53,457 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:44:53,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 23:44:53,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:44:53,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:44:53,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-28 23:44:53,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:44:53,626 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 [2023-11-28 23:44:53,673 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 [2023-11-28 23:44:53,713 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:44:53,713 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 [2023-11-28 23:44:53,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:44:53,759 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 [2023-11-28 23:44:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-28 23:44:53,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:44:53,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796611375] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:44:53,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:44:53,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2023-11-28 23:44:53,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887578978] [2023-11-28 23:44:53,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:44:53,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:44:53,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:44:53,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:44:53,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-28 23:44:54,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 282 [2023-11-28 23:44:54,529 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 283 transitions, 614 flow. Second operand has 8 states, 8 states have (on average 192.25) internal successors, (1538), 8 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:54,530 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:44:54,530 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 282 [2023-11-28 23:44:54,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:44:55,011 INFO L124 PetriNetUnfolderBase]: 366/1641 cut-off events. [2023-11-28 23:44:55,011 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-28 23:44:55,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2487 conditions, 1641 events. 366/1641 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 10088 event pairs, 364 based on Foata normal form. 0/1515 useless extension candidates. Maximal degree in co-relation 2434. Up to 794 conditions per place. [2023-11-28 23:44:55,024 INFO L140 encePairwiseOnDemand]: 262/282 looper letters, 67 selfloop transitions, 18 changer transitions 0/281 dead transitions. [2023-11-28 23:44:55,024 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 281 transitions, 780 flow [2023-11-28 23:44:55,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:44:55,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-28 23:44:55,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1806 transitions. [2023-11-28 23:44:55,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7115839243498818 [2023-11-28 23:44:55,029 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1806 transitions. [2023-11-28 23:44:55,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1806 transitions. [2023-11-28 23:44:55,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:44:55,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1806 transitions. [2023-11-28 23:44:55,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 200.66666666666666) internal successors, (1806), 9 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:55,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 282.0) internal successors, (2820), 10 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:55,043 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 282.0) internal successors, (2820), 10 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:55,043 INFO L175 Difference]: Start difference. First operand has 290 places, 283 transitions, 614 flow. Second operand 9 states and 1806 transitions. [2023-11-28 23:44:55,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 281 transitions, 780 flow [2023-11-28 23:44:55,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 295 places, 281 transitions, 774 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-28 23:44:55,049 INFO L231 Difference]: Finished difference. Result has 295 places, 281 transitions, 640 flow [2023-11-28 23:44:55,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=640, PETRI_PLACES=295, PETRI_TRANSITIONS=281} [2023-11-28 23:44:55,050 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 16 predicate places. [2023-11-28 23:44:55,050 INFO L495 AbstractCegarLoop]: Abstraction has has 295 places, 281 transitions, 640 flow [2023-11-28 23:44:55,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 192.25) internal successors, (1538), 8 states have internal predecessors, (1538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:55,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:44:55,051 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] [2023-11-28 23:44:55,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-28 23:44:55,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:44:55,252 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:44:55,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:55,253 INFO L85 PathProgramCache]: Analyzing trace with hash -579480234, now seen corresponding path program 1 times [2023-11-28 23:44:55,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:44:55,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429039360] [2023-11-28 23:44:55,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:55,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:44:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:55,322 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-28 23:44:55,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:44:55,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429039360] [2023-11-28 23:44:55,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429039360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:44:55,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:44:55,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:44:55,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186008295] [2023-11-28 23:44:55,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:44:55,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:44:55,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:44:55,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:44:55,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:44:55,357 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 282 [2023-11-28 23:44:55,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 281 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:55,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:44:55,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 282 [2023-11-28 23:44:55,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:44:55,444 INFO L124 PetriNetUnfolderBase]: 8/474 cut-off events. [2023-11-28 23:44:55,444 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-28 23:44:55,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 565 conditions, 474 events. 8/474 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 865 event pairs, 6 based on Foata normal form. 1/441 useless extension candidates. Maximal degree in co-relation 513. Up to 24 conditions per place. [2023-11-28 23:44:55,446 INFO L140 encePairwiseOnDemand]: 279/282 looper letters, 10 selfloop transitions, 2 changer transitions 0/282 dead transitions. [2023-11-28 23:44:55,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 282 transitions, 666 flow [2023-11-28 23:44:55,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:44:55,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-28 23:44:55,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2023-11-28 23:44:55,450 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9621749408983451 [2023-11-28 23:44:55,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2023-11-28 23:44:55,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2023-11-28 23:44:55,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:44:55,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2023-11-28 23:44:55,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:55,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:55,456 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 282.0) internal successors, (1128), 4 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:55,457 INFO L175 Difference]: Start difference. First operand has 295 places, 281 transitions, 640 flow. Second operand 3 states and 814 transitions. [2023-11-28 23:44:55,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 282 transitions, 666 flow [2023-11-28 23:44:55,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 282 transitions, 630 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-28 23:44:55,465 INFO L231 Difference]: Finished difference. Result has 290 places, 282 transitions, 616 flow [2023-11-28 23:44:55,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=604, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=616, PETRI_PLACES=290, PETRI_TRANSITIONS=282} [2023-11-28 23:44:55,467 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 11 predicate places. [2023-11-28 23:44:55,467 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 282 transitions, 616 flow [2023-11-28 23:44:55,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:55,467 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:44:55,468 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, 1, 1] [2023-11-28 23:44:55,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 23:44:55,468 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:44:55,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:55,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1675355084, now seen corresponding path program 1 times [2023-11-28 23:44:55,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:44:55,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578359601] [2023-11-28 23:44:55,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:55,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:44:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:55,976 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-28 23:44:55,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:44:55,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578359601] [2023-11-28 23:44:55,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578359601] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:44:55,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:44:55,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:44:55,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066088314] [2023-11-28 23:44:55,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:44:55,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:44:55,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:44:55,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:44:55,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:44:56,468 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 282 [2023-11-28 23:44:56,470 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 282 transitions, 616 flow. Second operand has 6 states, 6 states have (on average 196.33333333333334) internal successors, (1178), 6 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:56,470 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:44:56,470 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 282 [2023-11-28 23:44:56,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:44:56,813 INFO L124 PetriNetUnfolderBase]: 366/1748 cut-off events. [2023-11-28 23:44:56,813 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-28 23:44:56,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2634 conditions, 1748 events. 366/1748 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 10061 event pairs, 364 based on Foata normal form. 0/1620 useless extension candidates. Maximal degree in co-relation 2582. Up to 830 conditions per place. [2023-11-28 23:44:56,823 INFO L140 encePairwiseOnDemand]: 270/282 looper letters, 71 selfloop transitions, 10 changer transitions 0/280 dead transitions. [2023-11-28 23:44:56,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 280 transitions, 774 flow [2023-11-28 23:44:56,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:44:56,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:44:56,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1253 transitions. [2023-11-28 23:44:56,828 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7405437352245863 [2023-11-28 23:44:56,828 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1253 transitions. [2023-11-28 23:44:56,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1253 transitions. [2023-11-28 23:44:56,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:44:56,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1253 transitions. [2023-11-28 23:44:56,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.83333333333334) internal successors, (1253), 6 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:56,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:56,838 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:56,838 INFO L175 Difference]: Start difference. First operand has 290 places, 282 transitions, 616 flow. Second operand 6 states and 1253 transitions. [2023-11-28 23:44:56,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 280 transitions, 774 flow [2023-11-28 23:44:56,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 280 transitions, 772 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-28 23:44:56,846 INFO L231 Difference]: Finished difference. Result has 292 places, 280 transitions, 630 flow [2023-11-28 23:44:56,847 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=630, PETRI_PLACES=292, PETRI_TRANSITIONS=280} [2023-11-28 23:44:56,847 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 13 predicate places. [2023-11-28 23:44:56,848 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 280 transitions, 630 flow [2023-11-28 23:44:56,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 196.33333333333334) internal successors, (1178), 6 states have internal predecessors, (1178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:56,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:44:56,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:44:56,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 23:44:56,849 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:44:56,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:56,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1128374787, now seen corresponding path program 1 times [2023-11-28 23:44:56,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:44:56,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61675163] [2023-11-28 23:44:56,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:56,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:44:56,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:57,033 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:44:57,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:44:57,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61675163] [2023-11-28 23:44:57,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61675163] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:44:57,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143844056] [2023-11-28 23:44:57,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:57,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:44:57,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:44:57,035 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:44:57,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 23:44:57,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:57,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:44:57,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:44:57,227 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:44:57,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:44:57,318 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:44:57,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143844056] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:44:57,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:44:57,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-28 23:44:57,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164498445] [2023-11-28 23:44:57,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:44:57,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 23:44:57,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:44:57,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 23:44:57,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-28 23:44:57,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 282 [2023-11-28 23:44:57,355 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 280 transitions, 630 flow. Second operand has 18 states, 18 states have (on average 265.8888888888889) internal successors, (4786), 18 states have internal predecessors, (4786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:57,355 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:44:57,355 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 282 [2023-11-28 23:44:57,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:44:57,593 INFO L124 PetriNetUnfolderBase]: 8/490 cut-off events. [2023-11-28 23:44:57,593 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2023-11-28 23:44:57,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 490 events. 8/490 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 854 event pairs, 6 based on Foata normal form. 4/464 useless extension candidates. Maximal degree in co-relation 494. Up to 24 conditions per place. [2023-11-28 23:44:57,595 INFO L140 encePairwiseOnDemand]: 276/282 looper letters, 18 selfloop transitions, 21 changer transitions 0/298 dead transitions. [2023-11-28 23:44:57,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 298 transitions, 796 flow [2023-11-28 23:44:57,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 23:44:57,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 23:44:57,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5587 transitions. [2023-11-28 23:44:57,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9434312732185073 [2023-11-28 23:44:57,607 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5587 transitions. [2023-11-28 23:44:57,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5587 transitions. [2023-11-28 23:44:57,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:44:57,610 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5587 transitions. [2023-11-28 23:44:57,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 266.04761904761904) internal successors, (5587), 21 states have internal predecessors, (5587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:57,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 282.0) internal successors, (6204), 22 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:57,634 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 282.0) internal successors, (6204), 22 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:57,634 INFO L175 Difference]: Start difference. First operand has 292 places, 280 transitions, 630 flow. Second operand 21 states and 5587 transitions. [2023-11-28 23:44:57,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 298 transitions, 796 flow [2023-11-28 23:44:57,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 298 transitions, 776 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 23:44:57,640 INFO L231 Difference]: Finished difference. Result has 312 places, 293 transitions, 740 flow [2023-11-28 23:44:57,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=740, PETRI_PLACES=312, PETRI_TRANSITIONS=293} [2023-11-28 23:44:57,642 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 33 predicate places. [2023-11-28 23:44:57,642 INFO L495 AbstractCegarLoop]: Abstraction has has 312 places, 293 transitions, 740 flow [2023-11-28 23:44:57,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 265.8888888888889) internal successors, (4786), 18 states have internal predecessors, (4786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:57,644 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:44:57,645 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, 1, 1] [2023-11-28 23:44:57,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 23:44:57,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:44:57,851 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:44:57,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:57,851 INFO L85 PathProgramCache]: Analyzing trace with hash -318264765, now seen corresponding path program 2 times [2023-11-28 23:44:57,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:44:57,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333345075] [2023-11-28 23:44:57,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:57,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:44:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:58,172 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:44:58,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:44:58,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333345075] [2023-11-28 23:44:58,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333345075] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:44:58,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593607576] [2023-11-28 23:44:58,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:44:58,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:44:58,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:44:58,178 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:44:58,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 23:44:58,319 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:44:58,319 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:44:58,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-28 23:44:58,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:44:58,564 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 [2023-11-28 23:44:58,595 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 [2023-11-28 23:44:58,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:44:58,637 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 [2023-11-28 23:44:58,687 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:44:58,687 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 [2023-11-28 23:44:58,732 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-28 23:44:58,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:44:58,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593607576] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:44:58,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:44:58,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 23 [2023-11-28 23:44:58,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371648193] [2023-11-28 23:44:58,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:44:58,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 23:44:58,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:44:58,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 23:44:58,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2023-11-28 23:44:59,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 189 out of 282 [2023-11-28 23:44:59,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 293 transitions, 740 flow. Second operand has 8 states, 8 states have (on average 191.125) internal successors, (1529), 8 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:59,333 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:44:59,333 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 189 of 282 [2023-11-28 23:44:59,333 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:44:59,717 INFO L124 PetriNetUnfolderBase]: 392/1857 cut-off events. [2023-11-28 23:44:59,717 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-11-28 23:44:59,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2868 conditions, 1857 events. 392/1857 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10849 event pairs, 390 based on Foata normal form. 0/1724 useless extension candidates. Maximal degree in co-relation 2733. Up to 869 conditions per place. [2023-11-28 23:44:59,728 INFO L140 encePairwiseOnDemand]: 273/282 looper letters, 122 selfloop transitions, 8 changer transitions 0/333 dead transitions. [2023-11-28 23:44:59,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 333 transitions, 1080 flow [2023-11-28 23:44:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-28 23:44:59,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-28 23:44:59,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1643 transitions. [2023-11-28 23:44:59,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7282801418439716 [2023-11-28 23:44:59,735 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1643 transitions. [2023-11-28 23:44:59,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1643 transitions. [2023-11-28 23:44:59,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:44:59,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1643 transitions. [2023-11-28 23:44:59,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 205.375) internal successors, (1643), 8 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:59,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 282.0) internal successors, (2538), 9 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:59,746 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 282.0) internal successors, (2538), 9 states have internal predecessors, (2538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:59,746 INFO L175 Difference]: Start difference. First operand has 312 places, 293 transitions, 740 flow. Second operand 8 states and 1643 transitions. [2023-11-28 23:44:59,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 333 transitions, 1080 flow [2023-11-28 23:44:59,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 333 transitions, 1056 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-28 23:44:59,755 INFO L231 Difference]: Finished difference. Result has 318 places, 298 transitions, 766 flow [2023-11-28 23:44:59,756 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=716, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=766, PETRI_PLACES=318, PETRI_TRANSITIONS=298} [2023-11-28 23:44:59,757 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 39 predicate places. [2023-11-28 23:44:59,757 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 298 transitions, 766 flow [2023-11-28 23:44:59,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 191.125) internal successors, (1529), 8 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:44:59,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:44:59,758 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:44:59,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 23:44:59,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:44:59,959 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:44:59,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:59,959 INFO L85 PathProgramCache]: Analyzing trace with hash 844892073, now seen corresponding path program 1 times [2023-11-28 23:44:59,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:44:59,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350420029] [2023-11-28 23:44:59,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:59,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:44:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:00,345 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:45:00,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:00,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350420029] [2023-11-28 23:45:00,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350420029] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:45:00,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158504006] [2023-11-28 23:45:00,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:00,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:45:00,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:45:00,347 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:45:00,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 23:45:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:00,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-28 23:45:00,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:45:00,612 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:45:00,612 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:45:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:45:00,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158504006] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:45:00,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:45:00,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-28 23:45:00,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534462693] [2023-11-28 23:45:00,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:45:00,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-28 23:45:00,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:00,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-28 23:45:00,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-28 23:45:00,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 282 [2023-11-28 23:45:00,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 298 transitions, 766 flow. Second operand has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:00,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:00,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 282 [2023-11-28 23:45:00,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:01,294 INFO L124 PetriNetUnfolderBase]: 8/504 cut-off events. [2023-11-28 23:45:01,294 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2023-11-28 23:45:01,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 504 events. 8/504 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 854 event pairs, 6 based on Foata normal form. 3/479 useless extension candidates. Maximal degree in co-relation 499. Up to 24 conditions per place. [2023-11-28 23:45:01,297 INFO L140 encePairwiseOnDemand]: 276/282 looper letters, 21 selfloop transitions, 30 changer transitions 0/315 dead transitions. [2023-11-28 23:45:01,298 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 315 transitions, 990 flow [2023-11-28 23:45:01,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-28 23:45:01,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-28 23:45:01,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7974 transitions. [2023-11-28 23:45:01,318 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9425531914893617 [2023-11-28 23:45:01,318 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7974 transitions. [2023-11-28 23:45:01,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7974 transitions. [2023-11-28 23:45:01,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:01,323 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7974 transitions. [2023-11-28 23:45:01,341 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 265.8) internal successors, (7974), 30 states have internal predecessors, (7974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:01,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 282.0) internal successors, (8742), 31 states have internal predecessors, (8742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:01,360 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 282.0) internal successors, (8742), 31 states have internal predecessors, (8742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:01,360 INFO L175 Difference]: Start difference. First operand has 318 places, 298 transitions, 766 flow. Second operand 30 states and 7974 transitions. [2023-11-28 23:45:01,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 315 transitions, 990 flow [2023-11-28 23:45:01,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 315 transitions, 984 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-28 23:45:01,370 INFO L231 Difference]: Finished difference. Result has 348 places, 308 transitions, 912 flow [2023-11-28 23:45:01,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=912, PETRI_PLACES=348, PETRI_TRANSITIONS=308} [2023-11-28 23:45:01,371 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 69 predicate places. [2023-11-28 23:45:01,371 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 308 transitions, 912 flow [2023-11-28 23:45:01,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 266.0) internal successors, (6118), 23 states have internal predecessors, (6118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:01,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:01,374 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] [2023-11-28 23:45:01,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-28 23:45:01,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:45:01,574 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:01,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:01,575 INFO L85 PathProgramCache]: Analyzing trace with hash 83262812, now seen corresponding path program 2 times [2023-11-28 23:45:01,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:01,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378196631] [2023-11-28 23:45:01,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:01,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:02,176 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:02,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:02,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378196631] [2023-11-28 23:45:02,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378196631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:02,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:45:02,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:45:02,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962472390] [2023-11-28 23:45:02,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:02,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:45:02,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:02,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:45:02,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:45:02,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 282 [2023-11-28 23:45:02,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 308 transitions, 912 flow. Second operand has 6 states, 6 states have (on average 220.83333333333334) internal successors, (1325), 6 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:02,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:02,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 282 [2023-11-28 23:45:02,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:03,047 INFO L124 PetriNetUnfolderBase]: 56/745 cut-off events. [2023-11-28 23:45:03,048 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2023-11-28 23:45:03,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 745 events. 56/745 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2660 event pairs, 54 based on Foata normal form. 0/693 useless extension candidates. Maximal degree in co-relation 923. Up to 195 conditions per place. [2023-11-28 23:45:03,053 INFO L140 encePairwiseOnDemand]: 276/282 looper letters, 61 selfloop transitions, 5 changer transitions 0/307 dead transitions. [2023-11-28 23:45:03,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 307 transitions, 1042 flow [2023-11-28 23:45:03,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:45:03,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:45:03,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1358 transitions. [2023-11-28 23:45:03,057 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8026004728132388 [2023-11-28 23:45:03,058 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1358 transitions. [2023-11-28 23:45:03,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1358 transitions. [2023-11-28 23:45:03,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:03,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1358 transitions. [2023-11-28 23:45:03,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 226.33333333333334) internal successors, (1358), 6 states have internal predecessors, (1358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:03,065 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:03,066 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:03,066 INFO L175 Difference]: Start difference. First operand has 348 places, 308 transitions, 912 flow. Second operand 6 states and 1358 transitions. [2023-11-28 23:45:03,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 307 transitions, 1042 flow [2023-11-28 23:45:03,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 307 transitions, 996 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-28 23:45:03,076 INFO L231 Difference]: Finished difference. Result has 334 places, 307 transitions, 874 flow [2023-11-28 23:45:03,077 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=864, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=874, PETRI_PLACES=334, PETRI_TRANSITIONS=307} [2023-11-28 23:45:03,077 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 55 predicate places. [2023-11-28 23:45:03,077 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 307 transitions, 874 flow [2023-11-28 23:45:03,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.83333333333334) internal successors, (1325), 6 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:03,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:03,078 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] [2023-11-28 23:45:03,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-28 23:45:03,079 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:03,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:03,079 INFO L85 PathProgramCache]: Analyzing trace with hash -687998835, now seen corresponding path program 1 times [2023-11-28 23:45:03,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:03,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149257469] [2023-11-28 23:45:03,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:03,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:03,559 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:03,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:03,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149257469] [2023-11-28 23:45:03,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149257469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:03,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:45:03,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:45:03,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935296203] [2023-11-28 23:45:03,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:03,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:45:03,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:03,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:45:03,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:45:04,099 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 282 [2023-11-28 23:45:04,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 307 transitions, 874 flow. Second operand has 6 states, 6 states have (on average 223.5) internal successors, (1341), 6 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:04,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:04,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 282 [2023-11-28 23:45:04,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:04,337 INFO L124 PetriNetUnfolderBase]: 38/660 cut-off events. [2023-11-28 23:45:04,337 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2023-11-28 23:45:04,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1006 conditions, 660 events. 38/660 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2106 event pairs, 36 based on Foata normal form. 0/621 useless extension candidates. Maximal degree in co-relation 812. Up to 158 conditions per place. [2023-11-28 23:45:04,341 INFO L140 encePairwiseOnDemand]: 276/282 looper letters, 57 selfloop transitions, 5 changer transitions 0/306 dead transitions. [2023-11-28 23:45:04,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 306 transitions, 996 flow [2023-11-28 23:45:04,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:45:04,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:45:04,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1373 transitions. [2023-11-28 23:45:04,347 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8114657210401891 [2023-11-28 23:45:04,347 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1373 transitions. [2023-11-28 23:45:04,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1373 transitions. [2023-11-28 23:45:04,348 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:04,348 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1373 transitions. [2023-11-28 23:45:04,352 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.83333333333334) internal successors, (1373), 6 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:04,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:04,356 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:04,357 INFO L175 Difference]: Start difference. First operand has 334 places, 307 transitions, 874 flow. Second operand 6 states and 1373 transitions. [2023-11-28 23:45:04,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 306 transitions, 996 flow [2023-11-28 23:45:04,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 306 transitions, 986 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 23:45:04,369 INFO L231 Difference]: Finished difference. Result has 333 places, 306 transitions, 872 flow [2023-11-28 23:45:04,369 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=872, PETRI_PLACES=333, PETRI_TRANSITIONS=306} [2023-11-28 23:45:04,370 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 54 predicate places. [2023-11-28 23:45:04,370 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 306 transitions, 872 flow [2023-11-28 23:45:04,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 223.5) internal successors, (1341), 6 states have internal predecessors, (1341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:04,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:04,371 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] [2023-11-28 23:45:04,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-28 23:45:04,372 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:04,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:04,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1660341395, now seen corresponding path program 1 times [2023-11-28 23:45:04,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:04,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803698151] [2023-11-28 23:45:04,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:04,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:04,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:05,002 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:05,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:05,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803698151] [2023-11-28 23:45:05,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803698151] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:05,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:45:05,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:45:05,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14751799] [2023-11-28 23:45:05,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:05,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:45:05,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:05,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:45:05,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:45:05,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 282 [2023-11-28 23:45:05,318 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 306 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 199.16666666666666) internal successors, (1195), 6 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:05,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:05,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 282 [2023-11-28 23:45:05,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:05,743 INFO L124 PetriNetUnfolderBase]: 366/1776 cut-off events. [2023-11-28 23:45:05,743 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2023-11-28 23:45:05,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2810 conditions, 1776 events. 366/1776 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 10044 event pairs, 364 based on Foata normal form. 0/1656 useless extension candidates. Maximal degree in co-relation 2616. Up to 846 conditions per place. [2023-11-28 23:45:05,755 INFO L140 encePairwiseOnDemand]: 276/282 looper letters, 83 selfloop transitions, 5 changer transitions 0/305 dead transitions. [2023-11-28 23:45:05,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 305 transitions, 1046 flow [2023-11-28 23:45:05,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:45:05,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:45:05,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1243 transitions. [2023-11-28 23:45:05,760 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7346335697399528 [2023-11-28 23:45:05,760 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1243 transitions. [2023-11-28 23:45:05,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1243 transitions. [2023-11-28 23:45:05,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:05,761 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1243 transitions. [2023-11-28 23:45:05,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 207.16666666666666) internal successors, (1243), 6 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:05,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:05,767 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:05,767 INFO L175 Difference]: Start difference. First operand has 333 places, 306 transitions, 872 flow. Second operand 6 states and 1243 transitions. [2023-11-28 23:45:05,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 305 transitions, 1046 flow [2023-11-28 23:45:05,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 305 transitions, 1036 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 23:45:05,776 INFO L231 Difference]: Finished difference. Result has 332 places, 305 transitions, 870 flow [2023-11-28 23:45:05,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=870, PETRI_PLACES=332, PETRI_TRANSITIONS=305} [2023-11-28 23:45:05,778 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 53 predicate places. [2023-11-28 23:45:05,778 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 305 transitions, 870 flow [2023-11-28 23:45:05,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 199.16666666666666) internal successors, (1195), 6 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:05,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:05,779 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] [2023-11-28 23:45:05,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 23:45:05,779 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:05,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:05,779 INFO L85 PathProgramCache]: Analyzing trace with hash 152039239, now seen corresponding path program 1 times [2023-11-28 23:45:05,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:05,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126492364] [2023-11-28 23:45:05,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:05,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:06,313 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:06,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:06,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126492364] [2023-11-28 23:45:06,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126492364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:06,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:45:06,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:45:06,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330189149] [2023-11-28 23:45:06,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:06,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:45:06,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:06,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:45:06,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:45:06,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 282 [2023-11-28 23:45:06,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 305 transitions, 870 flow. Second operand has 6 states, 6 states have (on average 200.66666666666666) internal successors, (1204), 6 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:06,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:06,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 282 [2023-11-28 23:45:06,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:07,036 INFO L124 PetriNetUnfolderBase]: 366/1774 cut-off events. [2023-11-28 23:45:07,036 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2023-11-28 23:45:07,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2806 conditions, 1774 events. 366/1774 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 10022 event pairs, 364 based on Foata normal form. 0/1656 useless extension candidates. Maximal degree in co-relation 2612. Up to 844 conditions per place. [2023-11-28 23:45:07,046 INFO L140 encePairwiseOnDemand]: 276/282 looper letters, 82 selfloop transitions, 5 changer transitions 0/304 dead transitions. [2023-11-28 23:45:07,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 304 transitions, 1042 flow [2023-11-28 23:45:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:45:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:45:07,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1248 transitions. [2023-11-28 23:45:07,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7375886524822695 [2023-11-28 23:45:07,048 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1248 transitions. [2023-11-28 23:45:07,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1248 transitions. [2023-11-28 23:45:07,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:07,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1248 transitions. [2023-11-28 23:45:07,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 208.0) internal successors, (1248), 6 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:07,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:07,052 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:07,052 INFO L175 Difference]: Start difference. First operand has 332 places, 305 transitions, 870 flow. Second operand 6 states and 1248 transitions. [2023-11-28 23:45:07,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 304 transitions, 1042 flow [2023-11-28 23:45:07,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 304 transitions, 1032 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 23:45:07,059 INFO L231 Difference]: Finished difference. Result has 331 places, 304 transitions, 868 flow [2023-11-28 23:45:07,059 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=868, PETRI_PLACES=331, PETRI_TRANSITIONS=304} [2023-11-28 23:45:07,060 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 52 predicate places. [2023-11-28 23:45:07,060 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 304 transitions, 868 flow [2023-11-28 23:45:07,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 200.66666666666666) internal successors, (1204), 6 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:07,061 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:07,061 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] [2023-11-28 23:45:07,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-28 23:45:07,061 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:07,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:07,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1260530340, now seen corresponding path program 1 times [2023-11-28 23:45:07,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:07,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870127243] [2023-11-28 23:45:07,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:07,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:07,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:07,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870127243] [2023-11-28 23:45:07,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870127243] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:45:07,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111362367] [2023-11-28 23:45:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:07,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:45:07,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:45:07,211 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:45:07,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 23:45:07,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:07,487 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:45:07,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:45:07,620 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:07,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:45:07,732 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:07,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111362367] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:45:07,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:45:07,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-28 23:45:07,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31473438] [2023-11-28 23:45:07,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:45:07,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 23:45:07,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:07,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 23:45:07,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:45:07,846 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 282 [2023-11-28 23:45:07,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 304 transitions, 868 flow. Second operand has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:07,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:07,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 282 [2023-11-28 23:45:07,848 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:07,994 INFO L124 PetriNetUnfolderBase]: 8/604 cut-off events. [2023-11-28 23:45:07,994 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-28 23:45:07,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 604 events. 8/604 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 402 event pairs, 6 based on Foata normal form. 2/586 useless extension candidates. Maximal degree in co-relation 635. Up to 24 conditions per place. [2023-11-28 23:45:07,997 INFO L140 encePairwiseOnDemand]: 276/282 looper letters, 14 selfloop transitions, 9 changer transitions 0/312 dead transitions. [2023-11-28 23:45:07,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 312 transitions, 932 flow [2023-11-28 23:45:07,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 23:45:07,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-28 23:45:07,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2401 transitions. [2023-11-28 23:45:08,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.94602048857368 [2023-11-28 23:45:08,000 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2401 transitions. [2023-11-28 23:45:08,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2401 transitions. [2023-11-28 23:45:08,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:08,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2401 transitions. [2023-11-28 23:45:08,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 266.77777777777777) internal successors, (2401), 9 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:08,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 282.0) internal successors, (2820), 10 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:08,005 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 282.0) internal successors, (2820), 10 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:08,006 INFO L175 Difference]: Start difference. First operand has 331 places, 304 transitions, 868 flow. Second operand 9 states and 2401 transitions. [2023-11-28 23:45:08,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 312 transitions, 932 flow [2023-11-28 23:45:08,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 312 transitions, 922 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 23:45:08,013 INFO L231 Difference]: Finished difference. Result has 337 places, 310 transitions, 908 flow [2023-11-28 23:45:08,014 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=858, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=908, PETRI_PLACES=337, PETRI_TRANSITIONS=310} [2023-11-28 23:45:08,015 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 58 predicate places. [2023-11-28 23:45:08,015 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 310 transitions, 908 flow [2023-11-28 23:45:08,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 266.0) internal successors, (2660), 10 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:08,016 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:08,016 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:45:08,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 23:45:08,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:45:08,217 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:08,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:08,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1868257219, now seen corresponding path program 1 times [2023-11-28 23:45:08,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:08,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815510314] [2023-11-28 23:45:08,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:08,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:08,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2023-11-28 23:45:08,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:08,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815510314] [2023-11-28 23:45:08,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815510314] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:08,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:45:08,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:45:08,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948478679] [2023-11-28 23:45:08,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:08,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:45:08,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:08,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:45:08,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:45:09,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 282 [2023-11-28 23:45:09,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 310 transitions, 908 flow. Second operand has 6 states, 6 states have (on average 198.16666666666666) internal successors, (1189), 6 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:09,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:09,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 282 [2023-11-28 23:45:09,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:09,761 INFO L124 PetriNetUnfolderBase]: 392/1970 cut-off events. [2023-11-28 23:45:09,761 INFO L125 PetriNetUnfolderBase]: For 145/145 co-relation queries the response was YES. [2023-11-28 23:45:09,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3115 conditions, 1970 events. 392/1970 cut-off events. For 145/145 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 10035 event pairs, 390 based on Foata normal form. 2/1846 useless extension candidates. Maximal degree in co-relation 2917. Up to 935 conditions per place. [2023-11-28 23:45:09,770 INFO L140 encePairwiseOnDemand]: 276/282 looper letters, 84 selfloop transitions, 10 changer transitions 0/309 dead transitions. [2023-11-28 23:45:09,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 309 transitions, 1092 flow [2023-11-28 23:45:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:45:09,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:45:09,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1228 transitions. [2023-11-28 23:45:09,772 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7257683215130024 [2023-11-28 23:45:09,772 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1228 transitions. [2023-11-28 23:45:09,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1228 transitions. [2023-11-28 23:45:09,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:09,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1228 transitions. [2023-11-28 23:45:09,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 204.66666666666666) internal successors, (1228), 6 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:09,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:09,776 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:09,776 INFO L175 Difference]: Start difference. First operand has 337 places, 310 transitions, 908 flow. Second operand 6 states and 1228 transitions. [2023-11-28 23:45:09,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 309 transitions, 1092 flow [2023-11-28 23:45:09,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 309 transitions, 1088 flow, removed 2 selfloop flow, removed 0 redundant places. [2023-11-28 23:45:09,783 INFO L231 Difference]: Finished difference. Result has 341 places, 309 transitions, 920 flow [2023-11-28 23:45:09,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=920, PETRI_PLACES=341, PETRI_TRANSITIONS=309} [2023-11-28 23:45:09,784 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 62 predicate places. [2023-11-28 23:45:09,784 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 309 transitions, 920 flow [2023-11-28 23:45:09,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.16666666666666) internal successors, (1189), 6 states have internal predecessors, (1189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:09,785 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:09,785 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:45:09,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-28 23:45:09,785 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:09,785 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:09,785 INFO L85 PathProgramCache]: Analyzing trace with hash -964046852, now seen corresponding path program 2 times [2023-11-28 23:45:09,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:09,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794578034] [2023-11-28 23:45:09,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:09,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:10,344 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:10,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:10,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794578034] [2023-11-28 23:45:10,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794578034] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:45:10,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686838610] [2023-11-28 23:45:10,345 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:45:10,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:45:10,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:45:10,346 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:45:10,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 23:45:10,651 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:45:10,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:45:10,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 23:45:10,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:45:10,682 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 15 treesize of output 11 [2023-11-28 23:45:10,696 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 28 treesize of output 27 [2023-11-28 23:45:10,718 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:45:10,719 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 40 treesize of output 42 [2023-11-28 23:45:10,753 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:45:10,753 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 52 treesize of output 57 [2023-11-28 23:45:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2023-11-28 23:45:10,785 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:45:10,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686838610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:10,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:45:10,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-28 23:45:10,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113451610] [2023-11-28 23:45:10,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:10,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:45:10,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:10,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:45:10,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:45:11,208 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 282 [2023-11-28 23:45:11,210 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 309 transitions, 920 flow. Second operand has 6 states, 6 states have (on average 225.33333333333334) internal successors, (1352), 6 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:11,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:11,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 282 [2023-11-28 23:45:11,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:11,702 INFO L124 PetriNetUnfolderBase]: 258/1872 cut-off events. [2023-11-28 23:45:11,703 INFO L125 PetriNetUnfolderBase]: For 148/148 co-relation queries the response was YES. [2023-11-28 23:45:11,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2715 conditions, 1872 events. 258/1872 cut-off events. For 148/148 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 9265 event pairs, 37 based on Foata normal form. 0/1750 useless extension candidates. Maximal degree in co-relation 2516. Up to 491 conditions per place. [2023-11-28 23:45:11,712 INFO L140 encePairwiseOnDemand]: 259/282 looper letters, 71 selfloop transitions, 70 changer transitions 0/387 dead transitions. [2023-11-28 23:45:11,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 387 transitions, 1358 flow [2023-11-28 23:45:11,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:45:11,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:45:11,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1452 transitions. [2023-11-28 23:45:11,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8581560283687943 [2023-11-28 23:45:11,714 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1452 transitions. [2023-11-28 23:45:11,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1452 transitions. [2023-11-28 23:45:11,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:11,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1452 transitions. [2023-11-28 23:45:11,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:11,717 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:11,717 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:11,717 INFO L175 Difference]: Start difference. First operand has 341 places, 309 transitions, 920 flow. Second operand 6 states and 1452 transitions. [2023-11-28 23:45:11,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 387 transitions, 1358 flow [2023-11-28 23:45:11,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 341 places, 387 transitions, 1338 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 23:45:11,725 INFO L231 Difference]: Finished difference. Result has 346 places, 378 transitions, 1362 flow [2023-11-28 23:45:11,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1362, PETRI_PLACES=346, PETRI_TRANSITIONS=378} [2023-11-28 23:45:11,726 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 67 predicate places. [2023-11-28 23:45:11,726 INFO L495 AbstractCegarLoop]: Abstraction has has 346 places, 378 transitions, 1362 flow [2023-11-28 23:45:11,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.33333333333334) internal successors, (1352), 6 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:11,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:11,727 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:45:11,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-28 23:45:11,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:45:11,928 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:11,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:11,928 INFO L85 PathProgramCache]: Analyzing trace with hash -618394126, now seen corresponding path program 1 times [2023-11-28 23:45:11,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:11,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142255873] [2023-11-28 23:45:11,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:11,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:12,403 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:12,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:12,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142255873] [2023-11-28 23:45:12,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142255873] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:45:12,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601445665] [2023-11-28 23:45:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:12,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:45:12,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:45:12,405 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:45:12,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 23:45:12,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:12,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:45:12,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:45:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:13,164 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:45:13,505 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:13,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601445665] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:45:13,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:45:13,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-28 23:45:13,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087229625] [2023-11-28 23:45:13,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:45:13,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 23:45:13,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:13,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 23:45:13,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-28 23:45:13,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 282 [2023-11-28 23:45:13,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 378 transitions, 1362 flow. Second operand has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:13,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:13,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 282 [2023-11-28 23:45:13,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:14,397 INFO L124 PetriNetUnfolderBase]: 136/2028 cut-off events. [2023-11-28 23:45:14,397 INFO L125 PetriNetUnfolderBase]: For 314/334 co-relation queries the response was YES. [2023-11-28 23:45:14,401 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2892 conditions, 2028 events. 136/2028 cut-off events. For 314/334 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7441 event pairs, 21 based on Foata normal form. 4/1945 useless extension candidates. Maximal degree in co-relation 2690. Up to 206 conditions per place. [2023-11-28 23:45:14,406 INFO L140 encePairwiseOnDemand]: 276/282 looper letters, 19 selfloop transitions, 21 changer transitions 0/396 dead transitions. [2023-11-28 23:45:14,406 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 396 transitions, 1530 flow [2023-11-28 23:45:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-28 23:45:14,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-28 23:45:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5587 transitions. [2023-11-28 23:45:14,413 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9434312732185073 [2023-11-28 23:45:14,413 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5587 transitions. [2023-11-28 23:45:14,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5587 transitions. [2023-11-28 23:45:14,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:14,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5587 transitions. [2023-11-28 23:45:14,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 266.04761904761904) internal successors, (5587), 21 states have internal predecessors, (5587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:14,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 282.0) internal successors, (6204), 22 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:14,428 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 282.0) internal successors, (6204), 22 states have internal predecessors, (6204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:14,429 INFO L175 Difference]: Start difference. First operand has 346 places, 378 transitions, 1362 flow. Second operand 21 states and 5587 transitions. [2023-11-28 23:45:14,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 396 transitions, 1530 flow [2023-11-28 23:45:14,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 396 transitions, 1530 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 23:45:14,442 INFO L231 Difference]: Finished difference. Result has 371 places, 391 transitions, 1492 flow [2023-11-28 23:45:14,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=1362, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1492, PETRI_PLACES=371, PETRI_TRANSITIONS=391} [2023-11-28 23:45:14,442 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 92 predicate places. [2023-11-28 23:45:14,442 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 391 transitions, 1492 flow [2023-11-28 23:45:14,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 266.0) internal successors, (4788), 18 states have internal predecessors, (4788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:14,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:14,444 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-28 23:45:14,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 23:45:14,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-28 23:45:14,645 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:14,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:14,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1805788366, now seen corresponding path program 2 times [2023-11-28 23:45:14,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:14,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486401873] [2023-11-28 23:45:14,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:14,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:16,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486401873] [2023-11-28 23:45:16,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486401873] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:45:16,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702402379] [2023-11-28 23:45:16,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:45:16,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:45:16,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:45:16,231 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:45:16,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 23:45:16,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:45:16,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:45:16,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-28 23:45:16,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:45:16,682 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 [2023-11-28 23:45:16,698 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 [2023-11-28 23:45:16,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:45:16,722 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 [2023-11-28 23:45:16,751 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:45:16,752 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 [2023-11-28 23:45:16,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2447 trivial. 0 not checked. [2023-11-28 23:45:16,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:45:16,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702402379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:16,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:45:16,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-28 23:45:16,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298362781] [2023-11-28 23:45:16,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:16,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:45:16,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:16,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:45:16,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-28 23:45:17,258 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 282 [2023-11-28 23:45:17,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 391 transitions, 1492 flow. Second operand has 6 states, 6 states have (on average 225.16666666666666) internal successors, (1351), 6 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:17,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:17,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 282 [2023-11-28 23:45:17,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:18,585 INFO L124 PetriNetUnfolderBase]: 516/3095 cut-off events. [2023-11-28 23:45:18,586 INFO L125 PetriNetUnfolderBase]: For 1013/1105 co-relation queries the response was YES. [2023-11-28 23:45:18,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5558 conditions, 3095 events. 516/3095 cut-off events. For 1013/1105 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16320 event pairs, 92 based on Foata normal form. 16/2955 useless extension candidates. Maximal degree in co-relation 5351. Up to 981 conditions per place. [2023-11-28 23:45:18,602 INFO L140 encePairwiseOnDemand]: 259/282 looper letters, 135 selfloop transitions, 130 changer transitions 0/528 dead transitions. [2023-11-28 23:45:18,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 376 places, 528 transitions, 2672 flow [2023-11-28 23:45:18,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:45:18,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:45:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1451 transitions. [2023-11-28 23:45:18,606 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.857565011820331 [2023-11-28 23:45:18,606 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1451 transitions. [2023-11-28 23:45:18,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1451 transitions. [2023-11-28 23:45:18,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:18,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1451 transitions. [2023-11-28 23:45:18,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.83333333333334) internal successors, (1451), 6 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:18,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:18,613 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:18,613 INFO L175 Difference]: Start difference. First operand has 371 places, 391 transitions, 1492 flow. Second operand 6 states and 1451 transitions. [2023-11-28 23:45:18,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 376 places, 528 transitions, 2672 flow [2023-11-28 23:45:18,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 528 transitions, 2648 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-28 23:45:18,635 INFO L231 Difference]: Finished difference. Result has 375 places, 520 transitions, 2696 flow [2023-11-28 23:45:18,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=1468, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2696, PETRI_PLACES=375, PETRI_TRANSITIONS=520} [2023-11-28 23:45:18,636 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 96 predicate places. [2023-11-28 23:45:18,636 INFO L495 AbstractCegarLoop]: Abstraction has has 375 places, 520 transitions, 2696 flow [2023-11-28 23:45:18,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.16666666666666) internal successors, (1351), 6 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:18,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:18,637 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2023-11-28 23:45:18,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-28 23:45:18,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-28 23:45:18,838 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:18,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:18,838 INFO L85 PathProgramCache]: Analyzing trace with hash -368046415, now seen corresponding path program 1 times [2023-11-28 23:45:18,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:18,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216736152] [2023-11-28 23:45:18,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:18,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:19,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:20,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:20,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:20,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216736152] [2023-11-28 23:45:20,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216736152] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:45:20,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040063599] [2023-11-28 23:45:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:20,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:45:20,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:45:20,401 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:45:20,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 23:45:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:21,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 3220 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-28 23:45:21,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:45:21,919 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:21,919 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:45:22,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-28 23:45:22,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040063599] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:45:22,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:45:22,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-28 23:45:22,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443704931] [2023-11-28 23:45:22,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:45:22,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-28 23:45:22,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:22,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-28 23:45:22,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-28 23:45:22,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 282 [2023-11-28 23:45:22,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 375 places, 520 transitions, 2696 flow. Second operand has 23 states, 23 states have (on average 266.0869565217391) internal successors, (6120), 23 states have internal predecessors, (6120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:22,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:22,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 282 [2023-11-28 23:45:22,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:24,070 INFO L124 PetriNetUnfolderBase]: 397/3109 cut-off events. [2023-11-28 23:45:24,070 INFO L125 PetriNetUnfolderBase]: For 1294/1330 co-relation queries the response was YES. [2023-11-28 23:45:24,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5481 conditions, 3109 events. 397/3109 cut-off events. For 1294/1330 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 13428 event pairs, 37 based on Foata normal form. 7/3008 useless extension candidates. Maximal degree in co-relation 5269. Up to 467 conditions per place. [2023-11-28 23:45:24,083 INFO L140 encePairwiseOnDemand]: 276/282 looper letters, 22 selfloop transitions, 30 changer transitions 0/537 dead transitions. [2023-11-28 23:45:24,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 537 transitions, 2922 flow [2023-11-28 23:45:24,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-28 23:45:24,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-28 23:45:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 7974 transitions. [2023-11-28 23:45:24,091 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9425531914893617 [2023-11-28 23:45:24,091 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 7974 transitions. [2023-11-28 23:45:24,092 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 7974 transitions. [2023-11-28 23:45:24,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:24,094 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 7974 transitions. [2023-11-28 23:45:24,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 265.8) internal successors, (7974), 30 states have internal predecessors, (7974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:24,112 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 282.0) internal successors, (8742), 31 states have internal predecessors, (8742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:24,113 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 282.0) internal successors, (8742), 31 states have internal predecessors, (8742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:24,113 INFO L175 Difference]: Start difference. First operand has 375 places, 520 transitions, 2696 flow. Second operand 30 states and 7974 transitions. [2023-11-28 23:45:24,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 537 transitions, 2922 flow [2023-11-28 23:45:24,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 537 transitions, 2922 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 23:45:24,133 INFO L231 Difference]: Finished difference. Result has 408 places, 530 transitions, 2848 flow [2023-11-28 23:45:24,133 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=2696, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=497, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2848, PETRI_PLACES=408, PETRI_TRANSITIONS=530} [2023-11-28 23:45:24,133 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 129 predicate places. [2023-11-28 23:45:24,134 INFO L495 AbstractCegarLoop]: Abstraction has has 408 places, 530 transitions, 2848 flow [2023-11-28 23:45:24,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 266.0869565217391) internal successors, (6120), 23 states have internal predecessors, (6120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:24,134 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:24,135 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:45:24,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-28 23:45:24,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-28 23:45:24,336 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:24,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:24,336 INFO L85 PathProgramCache]: Analyzing trace with hash -995267234, now seen corresponding path program 2 times [2023-11-28 23:45:24,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:24,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504088233] [2023-11-28 23:45:24,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:24,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:24,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:28,072 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2023-11-28 23:45:28,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:28,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504088233] [2023-11-28 23:45:28,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504088233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:28,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:45:28,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:45:28,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321642943] [2023-11-28 23:45:28,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:28,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:45:28,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:28,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:45:28,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:45:28,579 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 282 [2023-11-28 23:45:28,580 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 530 transitions, 2848 flow. Second operand has 6 states, 6 states have (on average 225.33333333333334) internal successors, (1352), 6 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:28,580 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:28,580 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 282 [2023-11-28 23:45:28,580 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:30,667 INFO L124 PetriNetUnfolderBase]: 792/4198 cut-off events. [2023-11-28 23:45:30,668 INFO L125 PetriNetUnfolderBase]: For 3494/3698 co-relation queries the response was YES. [2023-11-28 23:45:30,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8942 conditions, 4198 events. 792/4198 cut-off events. For 3494/3698 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 22604 event pairs, 65 based on Foata normal form. 52/4086 useless extension candidates. Maximal degree in co-relation 8726. Up to 1323 conditions per place. [2023-11-28 23:45:30,691 INFO L140 encePairwiseOnDemand]: 259/282 looper letters, 255 selfloop transitions, 131 changer transitions 5/668 dead transitions. [2023-11-28 23:45:30,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 413 places, 668 transitions, 4530 flow [2023-11-28 23:45:30,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:45:30,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:45:30,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1452 transitions. [2023-11-28 23:45:30,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8581560283687943 [2023-11-28 23:45:30,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1452 transitions. [2023-11-28 23:45:30,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1452 transitions. [2023-11-28 23:45:30,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:30,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1452 transitions. [2023-11-28 23:45:30,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.0) internal successors, (1452), 6 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:30,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:30,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:30,698 INFO L175 Difference]: Start difference. First operand has 408 places, 530 transitions, 2848 flow. Second operand 6 states and 1452 transitions. [2023-11-28 23:45:30,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 413 places, 668 transitions, 4530 flow [2023-11-28 23:45:30,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 668 transitions, 4484 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-28 23:45:30,717 INFO L231 Difference]: Finished difference. Result has 400 places, 658 transitions, 4282 flow [2023-11-28 23:45:30,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=2802, PETRI_DIFFERENCE_MINUEND_PLACES=390, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=530, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4282, PETRI_PLACES=400, PETRI_TRANSITIONS=658} [2023-11-28 23:45:30,718 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 121 predicate places. [2023-11-28 23:45:30,718 INFO L495 AbstractCegarLoop]: Abstraction has has 400 places, 658 transitions, 4282 flow [2023-11-28 23:45:30,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.33333333333334) internal successors, (1352), 6 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:30,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:30,719 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:45:30,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-28 23:45:30,719 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:30,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:30,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1939669586, now seen corresponding path program 1 times [2023-11-28 23:45:30,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:30,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725926029] [2023-11-28 23:45:30,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:30,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:45:34,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2023-11-28 23:45:34,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:45:34,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725926029] [2023-11-28 23:45:34,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725926029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:45:34,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:45:34,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:45:34,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206835585] [2023-11-28 23:45:34,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:45:34,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:45:34,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:45:34,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:45:34,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 23:45:34,626 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 282 [2023-11-28 23:45:34,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 658 transitions, 4282 flow. Second operand has 6 states, 6 states have (on average 205.66666666666666) internal successors, (1234), 6 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:34,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:45:34,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 282 [2023-11-28 23:45:34,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:45:37,663 INFO L124 PetriNetUnfolderBase]: 1309/5600 cut-off events. [2023-11-28 23:45:37,663 INFO L125 PetriNetUnfolderBase]: For 5006/5063 co-relation queries the response was YES. [2023-11-28 23:45:37,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13678 conditions, 5600 events. 1309/5600 cut-off events. For 5006/5063 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 34381 event pairs, 369 based on Foata normal form. 11/5376 useless extension candidates. Maximal degree in co-relation 13458. Up to 2549 conditions per place. [2023-11-28 23:45:37,690 INFO L140 encePairwiseOnDemand]: 263/282 looper letters, 320 selfloop transitions, 84 changer transitions 0/737 dead transitions. [2023-11-28 23:45:37,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 404 places, 737 transitions, 5488 flow [2023-11-28 23:45:37,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:45:37,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 23:45:37,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1330 transitions. [2023-11-28 23:45:37,693 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7860520094562647 [2023-11-28 23:45:37,693 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1330 transitions. [2023-11-28 23:45:37,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1330 transitions. [2023-11-28 23:45:37,693 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:45:37,693 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1330 transitions. [2023-11-28 23:45:37,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 221.66666666666666) internal successors, (1330), 6 states have internal predecessors, (1330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:37,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:37,696 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 282.0) internal successors, (1974), 7 states have internal predecessors, (1974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:37,696 INFO L175 Difference]: Start difference. First operand has 400 places, 658 transitions, 4282 flow. Second operand 6 states and 1330 transitions. [2023-11-28 23:45:37,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 404 places, 737 transitions, 5488 flow [2023-11-28 23:45:37,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 737 transitions, 5234 flow, removed 127 selfloop flow, removed 0 redundant places. [2023-11-28 23:45:37,724 INFO L231 Difference]: Finished difference. Result has 409 places, 729 transitions, 4818 flow [2023-11-28 23:45:37,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=4034, PETRI_DIFFERENCE_MINUEND_PLACES=399, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=658, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=610, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4818, PETRI_PLACES=409, PETRI_TRANSITIONS=729} [2023-11-28 23:45:37,725 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 130 predicate places. [2023-11-28 23:45:37,725 INFO L495 AbstractCegarLoop]: Abstraction has has 409 places, 729 transitions, 4818 flow [2023-11-28 23:45:37,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 205.66666666666666) internal successors, (1234), 6 states have internal predecessors, (1234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:45:37,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:45:37,725 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:45:37,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-28 23:45:37,726 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:45:37,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:45:37,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1616695876, now seen corresponding path program 1 times [2023-11-28 23:45:37,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:45:37,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553789382] [2023-11-28 23:45:37,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:45:37,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:45:40,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 619 proven. 1054 refuted. 0 times theorem prover too weak. 3297 trivial. 0 not checked. [2023-11-28 23:46:17,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:46:17,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553789382] [2023-11-28 23:46:17,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553789382] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:46:17,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831390605] [2023-11-28 23:46:17,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:46:17,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:46:17,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:46:17,967 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:46:17,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-28 23:46:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:46:23,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 4489 conjuncts, 174 conjunts are in the unsatisfiable core [2023-11-28 23:46:23,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:46:24,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 23:46:24,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2023-11-28 23:46:24,257 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:46:24,257 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:46:24,579 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-28 23:46:24,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-28 23:46:25,644 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2023-11-28 23:46:25,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2023-11-28 23:46:26,154 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2023-11-28 23:46:26,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2023-11-28 23:46:27,312 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2023-11-28 23:46:27,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2023-11-28 23:46:27,808 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2023-11-28 23:46:27,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2023-11-28 23:46:28,814 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2023-11-28 23:46:28,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2023-11-28 23:46:29,220 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-11-28 23:46:29,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-11-28 23:46:30,929 INFO L349 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2023-11-28 23:46:30,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2023-11-28 23:46:31,774 INFO L349 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2023-11-28 23:46:31,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2023-11-28 23:46:33,376 INFO L349 Elim1Store]: treesize reduction 42, result has 27.6 percent of original size [2023-11-28 23:46:33,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2023-11-28 23:46:34,170 INFO L349 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2023-11-28 23:46:34,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 27 treesize of output 45 [2023-11-28 23:46:36,507 INFO L349 Elim1Store]: treesize reduction 56, result has 27.3 percent of original size [2023-11-28 23:46:36,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 38 [2023-11-28 23:46:37,850 INFO L349 Elim1Store]: treesize reduction 56, result has 27.3 percent of original size [2023-11-28 23:46:37,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 38 [2023-11-28 23:46:40,155 INFO L349 Elim1Store]: treesize reduction 56, result has 27.3 percent of original size [2023-11-28 23:46:40,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 38 [2023-11-28 23:46:41,404 INFO L349 Elim1Store]: treesize reduction 56, result has 27.3 percent of original size [2023-11-28 23:46:41,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 38 [2023-11-28 23:46:43,801 INFO L349 Elim1Store]: treesize reduction 56, result has 27.3 percent of original size [2023-11-28 23:46:43,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 38 [2023-11-28 23:46:45,068 INFO L349 Elim1Store]: treesize reduction 56, result has 27.3 percent of original size [2023-11-28 23:46:45,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 38 [2023-11-28 23:46:47,403 INFO L349 Elim1Store]: treesize reduction 56, result has 27.3 percent of original size [2023-11-28 23:46:47,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 38 [2023-11-28 23:46:48,795 INFO L349 Elim1Store]: treesize reduction 56, result has 27.3 percent of original size [2023-11-28 23:46:48,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 38 [2023-11-28 23:46:51,784 INFO L349 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2023-11-28 23:46:51,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 32 [2023-11-28 23:46:51,915 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 15 treesize of output 11 [2023-11-28 23:46:51,968 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 28 treesize of output 27 [2023-11-28 23:46:52,034 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:46:52,034 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 40 treesize of output 42 [2023-11-28 23:46:52,120 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:46:52,120 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 52 treesize of output 57 [2023-11-28 23:46:52,208 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 56 treesize of output 45 [2023-11-28 23:46:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 2641 proven. 886 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2023-11-28 23:46:52,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:46:52,316 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (and (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) (+ |c_~#c~0.offset| .cse0 1)) 0)) (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) (+ 2 |c_~#c~0.offset| .cse0)) 0)) (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) (+ |c_~#c~0.offset| .cse0)) 0)) (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store |c_#race| |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) (+ 3 |c_~#c~0.offset| .cse0)) 0)))) is different from false [2023-11-28 23:46:52,336 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (let ((.cse1 (+ 3 |c_~#c~0.offset| .cse2))) (let ((.cse0 (store |c_#race| |c_~#c~0.base| (store (select |c_#race| |c_~#c~0.base|) .cse1 0)))) (and (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) .cse1) 0)) (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) (+ |c_~#c~0.offset| .cse2 1)) 0)) (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) (+ 2 |c_~#c~0.offset| .cse2)) 0)) (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) (+ |c_~#c~0.offset| .cse2)) 0)))))) is different from false [2023-11-28 23:46:52,356 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (let ((.cse3 (+ 2 |c_~#c~0.offset| .cse1)) (.cse2 (+ 3 |c_~#c~0.offset| .cse1))) (let ((.cse0 (store |c_#race| |c_~#c~0.base| (store (store (select |c_#race| |c_~#c~0.base|) .cse3 0) .cse2 0)))) (and (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) (+ |c_~#c~0.offset| .cse1)) 0)) (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) .cse2) 0)) (forall ((v_ArrVal_11720 (Array Int Int))) (= 0 (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) .cse3))) (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) (+ |c_~#c~0.offset| .cse1 1)) 0)))))) is different from false [2023-11-28 23:46:52,375 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (* |c_ULTIMATE.start_main_~j~0#1| 4))) (let ((.cse2 (+ |c_~#c~0.offset| .cse1 1)) (.cse3 (+ 2 |c_~#c~0.offset| .cse1)) (.cse4 (+ 3 |c_~#c~0.offset| .cse1))) (let ((.cse0 (store |c_#race| |c_~#c~0.base| (store (store (store (select |c_#race| |c_~#c~0.base|) .cse2 0) .cse3 0) .cse4 0)))) (and (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) (+ |c_~#c~0.offset| .cse1)) 0)) (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) .cse2) 0)) (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) .cse3) 0)) (forall ((v_ArrVal_11720 (Array Int Int))) (= (select (select (store .cse0 |c_t_funThread1of1ForFork0_new_~p~0#1.base| v_ArrVal_11720) |c_~#c~0.base|) .cse4) 0)))))) is different from false [2023-11-28 23:46:52,391 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:46:52,392 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 1 new quantified variables, introduced 4 case distinctions, treesize of input 50 treesize of output 66 [2023-11-28 23:46:52,397 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:46:52,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 81 treesize of output 38 [2023-11-28 23:46:52,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 9 treesize of output 3 [2023-11-28 23:46:52,410 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2023-11-28 23:46:52,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2023-11-28 23:46:52,415 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2023-11-28 23:46:52,416 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2023-11-28 23:46:52,421 INFO L349 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2023-11-28 23:46:52,421 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 1 [2023-11-28 23:47:03,715 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-28 23:47:03,756 INFO L349 Elim1Store]: treesize reduction 65, result has 19.8 percent of original size [2023-11-28 23:47:03,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 953 treesize of output 938 [2023-11-28 23:47:03,802 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 3429 proven. 0 refuted. 0 times theorem prover too weak. 1541 trivial. 0 not checked. [2023-11-28 23:47:03,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831390605] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-28 23:47:03,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-28 23:47:03,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [25, 40] total 75 [2023-11-28 23:47:03,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030471264] [2023-11-28 23:47:03,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:47:03,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-28 23:47:03,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:47:03,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-28 23:47:03,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=648, Invalid=4475, Unknown=5, NotChecked=572, Total=5700 [2023-11-28 23:47:07,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:12,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:16,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:16,075 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 282 [2023-11-28 23:47:16,077 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 729 transitions, 4818 flow. Second operand has 21 states, 21 states have (on average 134.71428571428572) internal successors, (2829), 21 states have internal predecessors, (2829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:47:16,077 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:47:16,077 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 282 [2023-11-28 23:47:16,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:47:20,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:28,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:32,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:37,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:41,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:42,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:46,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:50,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:54,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:47:58,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:48:02,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:48:06,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:48:10,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:48:14,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:48:18,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:48:22,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:48:26,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-28 23:48:39,524 INFO L124 PetriNetUnfolderBase]: 2615/8356 cut-off events. [2023-11-28 23:48:39,524 INFO L125 PetriNetUnfolderBase]: For 10114/10209 co-relation queries the response was YES. [2023-11-28 23:48:39,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23752 conditions, 8356 events. 2615/8356 cut-off events. For 10114/10209 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 55884 event pairs, 523 based on Foata normal form. 60/8101 useless extension candidates. Maximal degree in co-relation 23510. Up to 1879 conditions per place. [2023-11-28 23:48:39,583 INFO L140 encePairwiseOnDemand]: 241/282 looper letters, 751 selfloop transitions, 195 changer transitions 6/1139 dead transitions. [2023-11-28 23:48:39,583 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 437 places, 1139 transitions, 8798 flow [2023-11-28 23:48:39,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-11-28 23:48:39,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2023-11-28 23:48:39,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 4137 transitions. [2023-11-28 23:48:39,588 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5058694057226706 [2023-11-28 23:48:39,588 INFO L72 ComplementDD]: Start complementDD. Operand 29 states and 4137 transitions. [2023-11-28 23:48:39,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 4137 transitions. [2023-11-28 23:48:39,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:48:39,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 29 states and 4137 transitions. [2023-11-28 23:48:39,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 30 states, 29 states have (on average 142.6551724137931) internal successors, (4137), 29 states have internal predecessors, (4137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:48:39,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 30 states, 30 states have (on average 282.0) internal successors, (8460), 30 states have internal predecessors, (8460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:48:39,598 INFO L81 ComplementDD]: Finished complementDD. Result has 30 states, 30 states have (on average 282.0) internal successors, (8460), 30 states have internal predecessors, (8460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:48:39,598 INFO L175 Difference]: Start difference. First operand has 409 places, 729 transitions, 4818 flow. Second operand 29 states and 4137 transitions. [2023-11-28 23:48:39,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 437 places, 1139 transitions, 8798 flow [2023-11-28 23:48:39,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 437 places, 1139 transitions, 8744 flow, removed 27 selfloop flow, removed 0 redundant places. [2023-11-28 23:48:39,658 INFO L231 Difference]: Finished difference. Result has 450 places, 828 transitions, 6132 flow [2023-11-28 23:48:39,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=4764, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=592, PETRI_DIFFERENCE_SUBTRAHEND_STATES=29, PETRI_FLOW=6132, PETRI_PLACES=450, PETRI_TRANSITIONS=828} [2023-11-28 23:48:39,659 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 171 predicate places. [2023-11-28 23:48:39,659 INFO L495 AbstractCegarLoop]: Abstraction has has 450 places, 828 transitions, 6132 flow [2023-11-28 23:48:39,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 134.71428571428572) internal successors, (2829), 21 states have internal predecessors, (2829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:48:39,660 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:48:39,660 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:48:39,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-28 23:48:39,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:48:39,861 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:48:39,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:48:39,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1131646352, now seen corresponding path program 2 times [2023-11-28 23:48:39,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:48:39,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595456740] [2023-11-28 23:48:39,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:48:39,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:48:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:49:13,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 18 proven. 1793 refuted. 0 times theorem prover too weak. 3159 trivial. 0 not checked. [2023-11-28 23:49:13,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:49:13,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595456740] [2023-11-28 23:49:13,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595456740] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:49:13,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618949267] [2023-11-28 23:49:13,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:49:13,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:49:13,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:49:13,234 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:49:13,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-28 23:49:14,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:49:14,584 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:49:14,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 4489 conjuncts, 86 conjunts are in the unsatisfiable core [2023-11-28 23:49:14,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:49:14,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 23:49:14,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 9 [2023-11-28 23:49:15,041 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:15,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:15,138 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:15,138 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:15,319 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:15,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:15,428 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:15,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:15,633 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:15,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:15,732 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:15,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:15,951 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:15,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:16,085 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:16,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:16,308 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:16,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:16,433 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:16,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:16,661 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:16,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:16,788 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:16,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:17,012 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:17,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:17,149 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:17,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:17,382 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:17,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:17,523 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:17,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:17,786 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:17,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:17,928 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:17,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:18,217 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:18,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:18,376 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-28 23:49:18,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-28 23:49:18,707 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 15 treesize of output 11 [2023-11-28 23:49:18,735 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 28 treesize of output 27 [2023-11-28 23:49:18,783 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:49:18,783 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 40 treesize of output 42 [2023-11-28 23:49:18,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 23:49:18,836 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 52 treesize of output 57 [2023-11-28 23:49:19,028 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-11-28 23:49:19,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-11-28 23:49:19,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2023-11-28 23:49:19,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4970 trivial. 0 not checked. [2023-11-28 23:49:19,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:49:19,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618949267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:49:19,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:49:19,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [20] total 29 [2023-11-28 23:49:19,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081166513] [2023-11-28 23:49:19,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:49:19,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 23:49:19,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:49:19,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 23:49:19,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=747, Unknown=0, NotChecked=0, Total=870 [2023-11-28 23:49:21,299 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 282 [2023-11-28 23:49:21,301 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 828 transitions, 6132 flow. Second operand has 13 states, 13 states have (on average 214.6153846153846) internal successors, (2790), 13 states have internal predecessors, (2790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:49:21,301 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 23:49:21,301 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 282 [2023-11-28 23:49:21,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 23:49:25,560 INFO L124 PetriNetUnfolderBase]: 1645/7077 cut-off events. [2023-11-28 23:49:25,560 INFO L125 PetriNetUnfolderBase]: For 15701/16081 co-relation queries the response was YES. [2023-11-28 23:49:25,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21662 conditions, 7077 events. 1645/7077 cut-off events. For 15701/16081 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 50902 event pairs, 91 based on Foata normal form. 217/7099 useless extension candidates. Maximal degree in co-relation 21416. Up to 1373 conditions per place. [2023-11-28 23:49:25,627 INFO L140 encePairwiseOnDemand]: 251/282 looper letters, 491 selfloop transitions, 295 changer transitions 6/1125 dead transitions. [2023-11-28 23:49:25,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 1125 transitions, 10313 flow [2023-11-28 23:49:25,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-28 23:49:25,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-28 23:49:25,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3624 transitions. [2023-11-28 23:49:25,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8031914893617021 [2023-11-28 23:49:25,632 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3624 transitions. [2023-11-28 23:49:25,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3624 transitions. [2023-11-28 23:49:25,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 23:49:25,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3624 transitions. [2023-11-28 23:49:25,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 226.5) internal successors, (3624), 16 states have internal predecessors, (3624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:49:25,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 282.0) internal successors, (4794), 17 states have internal predecessors, (4794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:49:25,643 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 282.0) internal successors, (4794), 17 states have internal predecessors, (4794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:49:25,643 INFO L175 Difference]: Start difference. First operand has 450 places, 828 transitions, 6132 flow. Second operand 16 states and 3624 transitions. [2023-11-28 23:49:25,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 1125 transitions, 10313 flow [2023-11-28 23:49:25,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 462 places, 1125 transitions, 10290 flow, removed 9 selfloop flow, removed 3 redundant places. [2023-11-28 23:49:25,758 INFO L231 Difference]: Finished difference. Result has 471 places, 947 transitions, 8598 flow [2023-11-28 23:49:25,759 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=282, PETRI_DIFFERENCE_MINUEND_FLOW=6111, PETRI_DIFFERENCE_MINUEND_PLACES=447, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=828, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=176, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=549, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=8598, PETRI_PLACES=471, PETRI_TRANSITIONS=947} [2023-11-28 23:49:25,759 INFO L281 CegarLoopForPetriNet]: 279 programPoint places, 192 predicate places. [2023-11-28 23:49:25,760 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 947 transitions, 8598 flow [2023-11-28 23:49:25,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 214.6153846153846) internal successors, (2790), 13 states have internal predecessors, (2790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:49:25,760 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 23:49:25,761 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:49:25,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-28 23:49:25,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-28 23:49:25,961 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-28 23:49:25,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:49:25,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1653253150, now seen corresponding path program 3 times [2023-11-28 23:49:25,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:49:25,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19918761] [2023-11-28 23:49:25,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:49:25,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:49:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:50:00,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4970 backedges. 279 proven. 3811 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2023-11-28 23:50:00,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:50:00,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19918761] [2023-11-28 23:50:00,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19918761] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:50:00,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003151169] [2023-11-28 23:50:00,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 23:50:00,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:50:00,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:50:00,401 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:50:00,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5fb2f0-1bcb-44bf-ba7d-16eea064ddc9/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process