./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.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_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme --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 406569de44adfe8c1be02a1261bb34c87b6e96e16ab8124ccb5c3636d70e4f02 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:42:48,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:42:48,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:42:48,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:42:48,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:42:48,460 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:42:48,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:42:48,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:42:48,463 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:42:48,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:42:48,470 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:42:48,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:42:48,471 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:42:48,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:42:48,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:42:48,474 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:42:48,474 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:42:48,475 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:42:48,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:42:48,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:42:48,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:42:48,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:42:48,477 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:42:48,477 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:42:48,478 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:42:48,478 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:42:48,479 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:42:48,480 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:42:48,480 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:42:48,481 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:42:48,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:48,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:42:48,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:42:48,483 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:42:48,483 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:42:48,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:42:48,484 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:42:48,484 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:42:48,484 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:42:48,485 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:42:48,485 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:42:48,485 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_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 406569de44adfe8c1be02a1261bb34c87b6e96e16ab8124ccb5c3636d70e4f02 [2023-11-26 10:42:48,771 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:42:48,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:42:48,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:42:48,821 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:42:48,822 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:42:48,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i [2023-11-26 10:42:52,013 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:42:52,323 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:42:52,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/sv-benchmarks/c/goblint-regression/09-regions_10-arraylist_rc.i [2023-11-26 10:42:52,349 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/data/42ee59bec/078f96d7a38641708042611f9fdd798d/FLAGccbd22d93 [2023-11-26 10:42:52,373 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/data/42ee59bec/078f96d7a38641708042611f9fdd798d [2023-11-26 10:42:52,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:42:52,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:42:52,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:52,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:42:52,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:42:52,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:52" (1/1) ... [2023-11-26 10:42:52,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@220b4955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:52, skipping insertion in model container [2023-11-26 10:42:52,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:42:52" (1/1) ... [2023-11-26 10:42:52,461 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:42:53,358 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:53,377 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:42:53,448 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:42:53,569 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:42:53,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53 WrapperNode [2023-11-26 10:42:53,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:42:53,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:53,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:42:53,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:42:53,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,701 INFO L138 Inliner]: procedures = 371, calls = 32, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 245 [2023-11-26 10:42:53,701 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:42:53,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:42:53,703 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:42:53,704 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:42:53,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,743 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,777 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:42:53,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:42:53,798 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:42:53,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:42:53,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (1/1) ... [2023-11-26 10:42:53,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:42:53,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:53,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:42:53,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:42:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:42:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 10:42:53,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:42:53,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 10:42:53,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:42:53,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:42:53,877 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 10:42:53,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:42:53,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:42:53,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 10:42:53,879 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-26 10:42:53,879 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-26 10:42:53,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:42:53,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:42:53,882 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:42:54,055 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:42:54,057 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:42:54,624 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:42:54,659 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:42:54,667 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:42:54,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:54 BoogieIcfgContainer [2023-11-26 10:42:54,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:42:54,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:42:54,674 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:42:54,678 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:42:54,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:42:52" (1/3) ... [2023-11-26 10:42:54,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633aaccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:54, skipping insertion in model container [2023-11-26 10:42:54,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:42:53" (2/3) ... [2023-11-26 10:42:54,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633aaccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:42:54, skipping insertion in model container [2023-11-26 10:42:54,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:42:54" (3/3) ... [2023-11-26 10:42:54,685 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_10-arraylist_rc.i [2023-11-26 10:42:54,695 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:42:54,751 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:42:54,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-26 10:42:54,751 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:42:54,965 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:42:55,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 284 transitions, 572 flow [2023-11-26 10:42:55,198 INFO L124 PetriNetUnfolderBase]: 6/283 cut-off events. [2023-11-26 10:42:55,200 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:42:55,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 283 events. 6/283 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 403 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 154. Up to 2 conditions per place. [2023-11-26 10:42:55,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 282 places, 284 transitions, 572 flow [2023-11-26 10:42:55,232 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 281 places, 283 transitions, 569 flow [2023-11-26 10:42:55,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:42:55,260 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;@13f037b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:42:55,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-26 10:42:55,281 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:42:55,282 INFO L124 PetriNetUnfolderBase]: 4/71 cut-off events. [2023-11-26 10:42:55,282 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:42:55,282 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:55,283 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] [2023-11-26 10:42:55,284 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)] === [2023-11-26 10:42:55,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:55,292 INFO L85 PathProgramCache]: Analyzing trace with hash 340414683, now seen corresponding path program 1 times [2023-11-26 10:42:55,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:55,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837738781] [2023-11-26 10:42:55,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:55,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:55,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:55,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837738781] [2023-11-26 10:42:55,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837738781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:55,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:55,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:55,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669879319] [2023-11-26 10:42:55,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:55,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:55,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:55,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:55,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:55,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 284 [2023-11-26 10:42:55,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 283 transitions, 569 flow. Second operand has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:55,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:55,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 284 [2023-11-26 10:42:55,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:55,910 INFO L124 PetriNetUnfolderBase]: 8/361 cut-off events. [2023-11-26 10:42:55,910 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:42:55,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 361 events. 8/361 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 878 event pairs, 6 based on Foata normal form. 6/336 useless extension candidates. Maximal degree in co-relation 222. Up to 24 conditions per place. [2023-11-26 10:42:55,914 INFO L140 encePairwiseOnDemand]: 277/284 looper letters, 10 selfloop transitions, 2 changer transitions 1/280 dead transitions. [2023-11-26 10:42:55,915 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 280 transitions, 587 flow [2023-11-26 10:42:55,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:55,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:42:55,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 825 transitions. [2023-11-26 10:42:55,936 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9683098591549296 [2023-11-26 10:42:55,937 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 825 transitions. [2023-11-26 10:42:55,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 825 transitions. [2023-11-26 10:42:55,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:55,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 825 transitions. [2023-11-26 10:42:55,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.0) internal successors, (825), 3 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:55,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:55,964 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:55,966 INFO L175 Difference]: Start difference. First operand has 281 places, 283 transitions, 569 flow. Second operand 3 states and 825 transitions. [2023-11-26 10:42:55,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 280 transitions, 587 flow [2023-11-26 10:42:55,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 280 transitions, 586 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:42:55,984 INFO L231 Difference]: Finished difference. Result has 283 places, 279 transitions, 570 flow [2023-11-26 10:42:55,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=570, PETRI_PLACES=283, PETRI_TRANSITIONS=279} [2023-11-26 10:42:55,991 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 2 predicate places. [2023-11-26 10:42:55,992 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 279 transitions, 570 flow [2023-11-26 10:42:55,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:55,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:55,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:42:55,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:42:55,994 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)] === [2023-11-26 10:42:55,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:55,996 INFO L85 PathProgramCache]: Analyzing trace with hash 400772245, now seen corresponding path program 1 times [2023-11-26 10:42:55,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:55,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989312372] [2023-11-26 10:42:55,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:55,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:56,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:56,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:56,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989312372] [2023-11-26 10:42:56,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989312372] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:56,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577377383] [2023-11-26 10:42:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:56,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:56,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:56,288 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:56,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:42:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:56,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:42:56,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:56,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:56,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:42:56,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:56,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577377383] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:42:56,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:42:56,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-26 10:42:56,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623794397] [2023-11-26 10:42:56,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:42:56,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 10:42:56,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:56,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 10:42:56,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:42:56,562 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 284 [2023-11-26 10:42:56,566 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 279 transitions, 570 flow. Second operand has 10 states, 10 states have (on average 267.8) internal successors, (2678), 10 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:56,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:56,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 284 [2023-11-26 10:42:56,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:56,740 INFO L124 PetriNetUnfolderBase]: 8/367 cut-off events. [2023-11-26 10:42:56,740 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:42:56,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 414 conditions, 367 events. 8/367 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. 2/339 useless extension candidates. Maximal degree in co-relation 387. Up to 24 conditions per place. [2023-11-26 10:42:56,743 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 14 selfloop transitions, 9 changer transitions 0/287 dead transitions. [2023-11-26 10:42:56,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 287 transitions, 634 flow [2023-11-26 10:42:56,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:42:56,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-26 10:42:56,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2419 transitions. [2023-11-26 10:42:56,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9464006259780907 [2023-11-26 10:42:56,752 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2419 transitions. [2023-11-26 10:42:56,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2419 transitions. [2023-11-26 10:42:56,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:56,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2419 transitions. [2023-11-26 10:42:56,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 268.77777777777777) internal successors, (2419), 9 states have internal predecessors, (2419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:56,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:56,775 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:56,775 INFO L175 Difference]: Start difference. First operand has 283 places, 279 transitions, 570 flow. Second operand 9 states and 2419 transitions. [2023-11-26 10:42:56,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 287 transitions, 634 flow [2023-11-26 10:42:56,778 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 287 transitions, 632 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:42:56,785 INFO L231 Difference]: Finished difference. Result has 292 places, 285 transitions, 618 flow [2023-11-26 10:42:56,785 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=618, PETRI_PLACES=292, PETRI_TRANSITIONS=285} [2023-11-26 10:42:56,786 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 11 predicate places. [2023-11-26 10:42:56,786 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 285 transitions, 618 flow [2023-11-26 10:42:56,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 267.8) internal successors, (2678), 10 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:56,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:56,789 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] [2023-11-26 10:42:56,807 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:56,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:56,996 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)] === [2023-11-26 10:42:56,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:56,997 INFO L85 PathProgramCache]: Analyzing trace with hash -266751915, now seen corresponding path program 2 times [2023-11-26 10:42:56,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:56,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103224372] [2023-11-26 10:42:56,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:56,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:57,288 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:57,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:57,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103224372] [2023-11-26 10:42:57,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103224372] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:57,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591543888] [2023-11-26 10:42:57,290 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:42:57,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:57,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:57,292 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:57,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:42:57,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 10:42:57,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:42:57,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-26 10:42:57,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:57,483 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 [2023-11-26 10:42:57,542 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 [2023-11-26 10:42:57,597 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:42:57,598 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 [2023-11-26 10:42:57,650 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:42:57,650 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 [2023-11-26 10:42:57,714 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-26 10:42:57,714 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:42:57,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591543888] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:57,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:42:57,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 15 [2023-11-26 10:42:57,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938996352] [2023-11-26 10:42:57,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:57,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:42:57,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:57,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:42:57,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:42:58,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 284 [2023-11-26 10:42:58,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 285 transitions, 618 flow. Second operand has 8 states, 8 states have (on average 194.25) internal successors, (1554), 8 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:58,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:58,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 284 [2023-11-26 10:42:58,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:58,981 INFO L124 PetriNetUnfolderBase]: 366/1643 cut-off events. [2023-11-26 10:42:58,982 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 10:42:58,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2489 conditions, 1643 events. 366/1643 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 10055 event pairs, 364 based on Foata normal form. 0/1517 useless extension candidates. Maximal degree in co-relation 2434. Up to 794 conditions per place. [2023-11-26 10:42:58,996 INFO L140 encePairwiseOnDemand]: 264/284 looper letters, 67 selfloop transitions, 18 changer transitions 0/283 dead transitions. [2023-11-26 10:42:58,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 283 transitions, 784 flow [2023-11-26 10:42:58,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:42:58,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-26 10:42:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1824 transitions. [2023-11-26 10:42:59,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7136150234741784 [2023-11-26 10:42:59,004 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1824 transitions. [2023-11-26 10:42:59,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1824 transitions. [2023-11-26 10:42:59,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:59,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1824 transitions. [2023-11-26 10:42:59,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 202.66666666666666) internal successors, (1824), 9 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:59,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:59,026 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:59,026 INFO L175 Difference]: Start difference. First operand has 292 places, 285 transitions, 618 flow. Second operand 9 states and 1824 transitions. [2023-11-26 10:42:59,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 283 transitions, 784 flow [2023-11-26 10:42:59,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 283 transitions, 778 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-26 10:42:59,036 INFO L231 Difference]: Finished difference. Result has 297 places, 283 transitions, 644 flow [2023-11-26 10:42:59,037 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=644, PETRI_PLACES=297, PETRI_TRANSITIONS=283} [2023-11-26 10:42:59,039 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 16 predicate places. [2023-11-26 10:42:59,039 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 283 transitions, 644 flow [2023-11-26 10:42:59,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 194.25) internal successors, (1554), 8 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:59,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:59,041 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] [2023-11-26 10:42:59,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:42:59,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:59,252 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)] === [2023-11-26 10:42:59,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:59,253 INFO L85 PathProgramCache]: Analyzing trace with hash -946276348, now seen corresponding path program 1 times [2023-11-26 10:42:59,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:59,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421674251] [2023-11-26 10:42:59,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:59,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-26 10:42:59,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:59,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421674251] [2023-11-26 10:42:59,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421674251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:42:59,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:42:59,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:42:59,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091691427] [2023-11-26 10:42:59,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:42:59,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:42:59,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:42:59,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:42:59,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:42:59,363 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 284 [2023-11-26 10:42:59,365 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 283 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:59,365 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:42:59,365 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 284 [2023-11-26 10:42:59,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:42:59,467 INFO L124 PetriNetUnfolderBase]: 8/476 cut-off events. [2023-11-26 10:42:59,467 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 10:42:59,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 567 conditions, 476 events. 8/476 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. 1/443 useless extension candidates. Maximal degree in co-relation 513. Up to 24 conditions per place. [2023-11-26 10:42:59,470 INFO L140 encePairwiseOnDemand]: 281/284 looper letters, 10 selfloop transitions, 2 changer transitions 0/284 dead transitions. [2023-11-26 10:42:59,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 284 transitions, 670 flow [2023-11-26 10:42:59,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:42:59,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:42:59,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2023-11-26 10:42:59,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9624413145539906 [2023-11-26 10:42:59,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2023-11-26 10:42:59,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2023-11-26 10:42:59,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:42:59,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2023-11-26 10:42:59,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:59,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:59,482 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 284.0) internal successors, (1136), 4 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:59,482 INFO L175 Difference]: Start difference. First operand has 297 places, 283 transitions, 644 flow. Second operand 3 states and 820 transitions. [2023-11-26 10:42:59,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 284 transitions, 670 flow [2023-11-26 10:42:59,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 284 transitions, 634 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-26 10:42:59,493 INFO L231 Difference]: Finished difference. Result has 292 places, 284 transitions, 620 flow [2023-11-26 10:42:59,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=620, PETRI_PLACES=292, PETRI_TRANSITIONS=284} [2023-11-26 10:42:59,495 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 11 predicate places. [2023-11-26 10:42:59,495 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 284 transitions, 620 flow [2023-11-26 10:42:59,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:42:59,496 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:42:59,496 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] [2023-11-26 10:42:59,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:42:59,497 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)] === [2023-11-26 10:42:59,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:42:59,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1720823033, now seen corresponding path program 1 times [2023-11-26 10:42:59,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:42:59,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424774581] [2023-11-26 10:42:59,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:59,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:42:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:59,711 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:59,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:42:59,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424774581] [2023-11-26 10:42:59,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424774581] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:42:59,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813393773] [2023-11-26 10:42:59,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:42:59,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:42:59,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:42:59,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:42:59,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:42:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:42:59,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 10:42:59,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:42:59,903 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:42:59,903 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:43:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:00,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813393773] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:43:00,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:43:00,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-26 10:43:00,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57509849] [2023-11-26 10:43:00,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:43:00,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-26 10:43:00,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:00,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-26 10:43:00,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-26 10:43:00,048 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 284 [2023-11-26 10:43:00,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 284 transitions, 620 flow. Second operand has 18 states, 18 states have (on average 267.8888888888889) internal successors, (4822), 18 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:00,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:00,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 284 [2023-11-26 10:43:00,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:00,348 INFO L124 PetriNetUnfolderBase]: 8/496 cut-off events. [2023-11-26 10:43:00,348 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-26 10:43:00,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 496 events. 8/496 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 866 event pairs, 6 based on Foata normal form. 4/466 useless extension candidates. Maximal degree in co-relation 479. Up to 24 conditions per place. [2023-11-26 10:43:00,351 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 18 selfloop transitions, 21 changer transitions 0/302 dead transitions. [2023-11-26 10:43:00,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 302 transitions, 786 flow [2023-11-26 10:43:00,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-26 10:43:00,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-26 10:43:00,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5629 transitions. [2023-11-26 10:43:00,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9438296445338699 [2023-11-26 10:43:00,369 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5629 transitions. [2023-11-26 10:43:00,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5629 transitions. [2023-11-26 10:43:00,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:00,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5629 transitions. [2023-11-26 10:43:00,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 268.04761904761904) internal successors, (5629), 21 states have internal predecessors, (5629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:00,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 284.0) internal successors, (6248), 22 states have internal predecessors, (6248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:00,412 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 284.0) internal successors, (6248), 22 states have internal predecessors, (6248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:00,412 INFO L175 Difference]: Start difference. First operand has 292 places, 284 transitions, 620 flow. Second operand 21 states and 5629 transitions. [2023-11-26 10:43:00,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 302 transitions, 786 flow [2023-11-26 10:43:00,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 302 transitions, 784 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:43:00,424 INFO L231 Difference]: Finished difference. Result has 316 places, 297 transitions, 748 flow [2023-11-26 10:43:00,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=748, PETRI_PLACES=316, PETRI_TRANSITIONS=297} [2023-11-26 10:43:00,429 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 35 predicate places. [2023-11-26 10:43:00,429 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 297 transitions, 748 flow [2023-11-26 10:43:00,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 267.8888888888889) internal successors, (4822), 18 states have internal predecessors, (4822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:00,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:00,434 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] [2023-11-26 10:43:00,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-26 10:43:00,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:00,641 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 10:43:00,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:00,641 INFO L85 PathProgramCache]: Analyzing trace with hash -312613767, now seen corresponding path program 2 times [2023-11-26 10:43:00,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:00,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522638113] [2023-11-26 10:43:00,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:00,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:01,106 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:01,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:01,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522638113] [2023-11-26 10:43:01,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522638113] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:43:01,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982759028] [2023-11-26 10:43:01,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:43:01,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:01,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:01,109 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:43:01,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:43:01,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 10:43:01,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:43:01,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-26 10:43:01,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:01,272 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 [2023-11-26 10:43:01,291 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 [2023-11-26 10:43:01,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:43:01,323 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 [2023-11-26 10:43:01,365 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:43:01,366 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 [2023-11-26 10:43:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-26 10:43:01,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:43:01,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982759028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:01,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:43:01,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-26 10:43:01,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451475997] [2023-11-26 10:43:01,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:01,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:43:01,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:01,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:43:01,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-26 10:43:01,934 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 284 [2023-11-26 10:43:01,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 297 transitions, 748 flow. Second operand has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:01,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:01,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 284 [2023-11-26 10:43:01,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:02,418 INFO L124 PetriNetUnfolderBase]: 366/1770 cut-off events. [2023-11-26 10:43:02,419 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2023-11-26 10:43:02,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2720 conditions, 1770 events. 366/1770 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 10046 event pairs, 364 based on Foata normal form. 0/1642 useless extension candidates. Maximal degree in co-relation 2585. Up to 830 conditions per place. [2023-11-26 10:43:02,434 INFO L140 encePairwiseOnDemand]: 272/284 looper letters, 71 selfloop transitions, 10 changer transitions 0/295 dead transitions. [2023-11-26 10:43:02,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 295 transitions, 906 flow [2023-11-26 10:43:02,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:43:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:43:02,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1265 transitions. [2023-11-26 10:43:02,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7423708920187794 [2023-11-26 10:43:02,443 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1265 transitions. [2023-11-26 10:43:02,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1265 transitions. [2023-11-26 10:43:02,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:02,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1265 transitions. [2023-11-26 10:43:02,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.83333333333334) internal successors, (1265), 6 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:02,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:02,472 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:02,474 INFO L175 Difference]: Start difference. First operand has 316 places, 297 transitions, 748 flow. Second operand 6 states and 1265 transitions. [2023-11-26 10:43:02,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 295 transitions, 906 flow [2023-11-26 10:43:02,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 295 transitions, 882 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-26 10:43:02,486 INFO L231 Difference]: Finished difference. Result has 313 places, 295 transitions, 740 flow [2023-11-26 10:43:02,487 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=740, PETRI_PLACES=313, PETRI_TRANSITIONS=295} [2023-11-26 10:43:02,490 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 32 predicate places. [2023-11-26 10:43:02,491 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 295 transitions, 740 flow [2023-11-26 10:43:02,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 198.33333333333334) internal successors, (1190), 6 states have internal predecessors, (1190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:02,492 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:02,492 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] [2023-11-26 10:43:02,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:43:02,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-26 10:43:02,699 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)] === [2023-11-26 10:43:02,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:02,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1850098573, now seen corresponding path program 1 times [2023-11-26 10:43:02,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:02,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201354566] [2023-11-26 10:43:02,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:02,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:03,166 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:03,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:03,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201354566] [2023-11-26 10:43:03,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201354566] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:43:03,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928498995] [2023-11-26 10:43:03,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:03,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:03,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:03,172 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:43:03,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 10:43:03,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:03,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 10:43:03,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:03,421 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:43:03,658 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:43:03,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928498995] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:43:03,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:43:03,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-26 10:43:03,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668122674] [2023-11-26 10:43:03,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:43:03,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-26 10:43:03,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:03,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-26 10:43:03,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-26 10:43:03,710 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 284 [2023-11-26 10:43:03,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 295 transitions, 740 flow. Second operand has 23 states, 23 states have (on average 268.0) internal successors, (6164), 23 states have internal predecessors, (6164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:03,716 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:03,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 284 [2023-11-26 10:43:03,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:04,179 INFO L124 PetriNetUnfolderBase]: 8/507 cut-off events. [2023-11-26 10:43:04,180 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2023-11-26 10:43:04,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 713 conditions, 507 events. 8/507 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 853 event pairs, 6 based on Foata normal form. 3/480 useless extension candidates. Maximal degree in co-relation 501. Up to 24 conditions per place. [2023-11-26 10:43:04,183 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 21 selfloop transitions, 30 changer transitions 0/312 dead transitions. [2023-11-26 10:43:04,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 312 transitions, 964 flow [2023-11-26 10:43:04,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-26 10:43:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-26 10:43:04,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 8034 transitions. [2023-11-26 10:43:04,209 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9429577464788732 [2023-11-26 10:43:04,209 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 8034 transitions. [2023-11-26 10:43:04,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 8034 transitions. [2023-11-26 10:43:04,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:04,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 8034 transitions. [2023-11-26 10:43:04,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 267.8) internal successors, (8034), 30 states have internal predecessors, (8034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:04,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 284.0) internal successors, (8804), 31 states have internal predecessors, (8804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:04,262 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 284.0) internal successors, (8804), 31 states have internal predecessors, (8804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:04,263 INFO L175 Difference]: Start difference. First operand has 313 places, 295 transitions, 740 flow. Second operand 30 states and 8034 transitions. [2023-11-26 10:43:04,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 312 transitions, 964 flow [2023-11-26 10:43:04,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 312 transitions, 944 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:43:04,273 INFO L231 Difference]: Finished difference. Result has 341 places, 305 transitions, 872 flow [2023-11-26 10:43:04,274 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=720, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=872, PETRI_PLACES=341, PETRI_TRANSITIONS=305} [2023-11-26 10:43:04,274 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 60 predicate places. [2023-11-26 10:43:04,275 INFO L495 AbstractCegarLoop]: Abstraction has has 341 places, 305 transitions, 872 flow [2023-11-26 10:43:04,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 268.0) internal successors, (6164), 23 states have internal predecessors, (6164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:04,277 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:04,277 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] [2023-11-26 10:43:04,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:43:04,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 10:43:04,483 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 10:43:04,483 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:04,484 INFO L85 PathProgramCache]: Analyzing trace with hash 363789241, now seen corresponding path program 2 times [2023-11-26 10:43:04,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:04,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498558980] [2023-11-26 10:43:04,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:04,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:05,217 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:05,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:05,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498558980] [2023-11-26 10:43:05,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498558980] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:05,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:05,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:05,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003576521] [2023-11-26 10:43:05,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:05,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:43:05,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:05,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:43:05,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:43:05,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 284 [2023-11-26 10:43:05,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 305 transitions, 872 flow. Second operand has 6 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:05,755 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:05,755 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 284 [2023-11-26 10:43:05,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:06,217 INFO L124 PetriNetUnfolderBase]: 392/1873 cut-off events. [2023-11-26 10:43:06,217 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2023-11-26 10:43:06,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2950 conditions, 1873 events. 392/1873 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10857 event pairs, 390 based on Foata normal form. 0/1741 useless extension candidates. Maximal degree in co-relation 2736. Up to 899 conditions per place. [2023-11-26 10:43:06,233 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 83 selfloop transitions, 5 changer transitions 0/304 dead transitions. [2023-11-26 10:43:06,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 304 transitions, 1046 flow [2023-11-26 10:43:06,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:43:06,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:43:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1240 transitions. [2023-11-26 10:43:06,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7276995305164319 [2023-11-26 10:43:06,239 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1240 transitions. [2023-11-26 10:43:06,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1240 transitions. [2023-11-26 10:43:06,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:06,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1240 transitions. [2023-11-26 10:43:06,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 206.66666666666666) internal successors, (1240), 6 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:06,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:06,248 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:06,249 INFO L175 Difference]: Start difference. First operand has 341 places, 305 transitions, 872 flow. Second operand 6 states and 1240 transitions. [2023-11-26 10:43:06,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 304 transitions, 1046 flow [2023-11-26 10:43:06,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 304 transitions, 1000 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-26 10:43:06,260 INFO L231 Difference]: Finished difference. Result has 327 places, 304 transitions, 834 flow [2023-11-26 10:43:06,262 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=322, 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=834, PETRI_PLACES=327, PETRI_TRANSITIONS=304} [2023-11-26 10:43:06,264 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 46 predicate places. [2023-11-26 10:43:06,264 INFO L495 AbstractCegarLoop]: Abstraction has has 327 places, 304 transitions, 834 flow [2023-11-26 10:43:06,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:06,265 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:06,265 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] [2023-11-26 10:43:06,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:43:06,266 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)] === [2023-11-26 10:43:06,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:06,266 INFO L85 PathProgramCache]: Analyzing trace with hash 2144349039, now seen corresponding path program 1 times [2023-11-26 10:43:06,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:06,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484010021] [2023-11-26 10:43:06,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:06,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:07,157 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:07,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:07,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484010021] [2023-11-26 10:43:07,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484010021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:07,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:07,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:07,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299854875] [2023-11-26 10:43:07,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:07,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:43:07,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:07,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:43:07,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:43:07,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 284 [2023-11-26 10:43:07,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 304 transitions, 834 flow. Second operand has 6 states, 6 states have (on average 222.83333333333334) internal successors, (1337), 6 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:07,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:07,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 284 [2023-11-26 10:43:07,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:08,122 INFO L124 PetriNetUnfolderBase]: 56/746 cut-off events. [2023-11-26 10:43:08,122 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-26 10:43:08,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1107 conditions, 746 events. 56/746 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2651 event pairs, 54 based on Foata normal form. 0/694 useless extension candidates. Maximal degree in co-relation 914. Up to 195 conditions per place. [2023-11-26 10:43:08,128 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 57 selfloop transitions, 5 changer transitions 0/303 dead transitions. [2023-11-26 10:43:08,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 303 transitions, 956 flow [2023-11-26 10:43:08,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:43:08,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:43:08,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1370 transitions. [2023-11-26 10:43:08,133 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8039906103286385 [2023-11-26 10:43:08,133 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1370 transitions. [2023-11-26 10:43:08,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1370 transitions. [2023-11-26 10:43:08,135 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:08,135 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1370 transitions. [2023-11-26 10:43:08,139 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.33333333333334) internal successors, (1370), 6 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:08,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:08,143 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:08,143 INFO L175 Difference]: Start difference. First operand has 327 places, 304 transitions, 834 flow. Second operand 6 states and 1370 transitions. [2023-11-26 10:43:08,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 303 transitions, 956 flow [2023-11-26 10:43:08,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 303 transitions, 946 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:43:08,154 INFO L231 Difference]: Finished difference. Result has 326 places, 303 transitions, 832 flow [2023-11-26 10:43:08,155 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=303, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=832, PETRI_PLACES=326, PETRI_TRANSITIONS=303} [2023-11-26 10:43:08,156 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 45 predicate places. [2023-11-26 10:43:08,156 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 303 transitions, 832 flow [2023-11-26 10:43:08,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.83333333333334) internal successors, (1337), 6 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:08,157 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:08,157 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] [2023-11-26 10:43:08,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:43:08,158 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)] === [2023-11-26 10:43:08,158 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:08,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1360631682, now seen corresponding path program 1 times [2023-11-26 10:43:08,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:08,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941156487] [2023-11-26 10:43:08,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:08,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:08,934 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:08,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:08,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941156487] [2023-11-26 10:43:08,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941156487] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:08,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:08,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:08,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089958321] [2023-11-26 10:43:08,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:08,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:43:08,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:08,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:43:08,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:43:09,613 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 284 [2023-11-26 10:43:09,615 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 303 transitions, 832 flow. Second operand has 6 states, 6 states have (on average 225.5) internal successors, (1353), 6 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:09,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:09,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 284 [2023-11-26 10:43:09,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:09,834 INFO L124 PetriNetUnfolderBase]: 38/661 cut-off events. [2023-11-26 10:43:09,835 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-11-26 10:43:09,837 INFO L83 FinitePrefix]: Finished finitePrefix Result has 985 conditions, 661 events. 38/661 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2090 event pairs, 36 based on Foata normal form. 0/622 useless extension candidates. Maximal degree in co-relation 794. Up to 158 conditions per place. [2023-11-26 10:43:09,840 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 53 selfloop transitions, 5 changer transitions 0/302 dead transitions. [2023-11-26 10:43:09,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 302 transitions, 946 flow [2023-11-26 10:43:09,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:43:09,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:43:09,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2023-11-26 10:43:09,846 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.812793427230047 [2023-11-26 10:43:09,846 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1385 transitions. [2023-11-26 10:43:09,847 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1385 transitions. [2023-11-26 10:43:09,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:09,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1385 transitions. [2023-11-26 10:43:09,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.83333333333334) internal successors, (1385), 6 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:09,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:09,857 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:09,857 INFO L175 Difference]: Start difference. First operand has 326 places, 303 transitions, 832 flow. Second operand 6 states and 1385 transitions. [2023-11-26 10:43:09,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 302 transitions, 946 flow [2023-11-26 10:43:09,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 302 transitions, 936 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:43:09,867 INFO L231 Difference]: Finished difference. Result has 325 places, 302 transitions, 830 flow [2023-11-26 10:43:09,869 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=820, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=830, PETRI_PLACES=325, PETRI_TRANSITIONS=302} [2023-11-26 10:43:09,869 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 44 predicate places. [2023-11-26 10:43:09,870 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 302 transitions, 830 flow [2023-11-26 10:43:09,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.5) internal successors, (1353), 6 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:09,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:09,871 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] [2023-11-26 10:43:09,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:43:09,871 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)] === [2023-11-26 10:43:09,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1527928986, now seen corresponding path program 1 times [2023-11-26 10:43:09,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:09,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126725819] [2023-11-26 10:43:09,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:09,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:10,649 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:10,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:10,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126725819] [2023-11-26 10:43:10,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126725819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:10,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:10,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:10,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465897491] [2023-11-26 10:43:10,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:10,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:43:10,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:10,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:43:10,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:43:11,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 284 [2023-11-26 10:43:11,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 302 transitions, 830 flow. Second operand has 6 states, 6 states have (on average 201.16666666666666) internal successors, (1207), 6 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:11,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 284 [2023-11-26 10:43:11,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:11,663 INFO L124 PetriNetUnfolderBase]: 366/1777 cut-off events. [2023-11-26 10:43:11,663 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-11-26 10:43:11,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2789 conditions, 1777 events. 366/1777 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 10004 event pairs, 364 based on Foata normal form. 0/1657 useless extension candidates. Maximal degree in co-relation 2598. Up to 846 conditions per place. [2023-11-26 10:43:11,678 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 79 selfloop transitions, 5 changer transitions 0/301 dead transitions. [2023-11-26 10:43:11,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 301 transitions, 996 flow [2023-11-26 10:43:11,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:43:11,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:43:11,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1255 transitions. [2023-11-26 10:43:11,685 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7365023474178404 [2023-11-26 10:43:11,685 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1255 transitions. [2023-11-26 10:43:11,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1255 transitions. [2023-11-26 10:43:11,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:11,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1255 transitions. [2023-11-26 10:43:11,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 209.16666666666666) internal successors, (1255), 6 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,695 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,695 INFO L175 Difference]: Start difference. First operand has 325 places, 302 transitions, 830 flow. Second operand 6 states and 1255 transitions. [2023-11-26 10:43:11,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 301 transitions, 996 flow [2023-11-26 10:43:11,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 301 transitions, 986 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:43:11,706 INFO L231 Difference]: Finished difference. Result has 324 places, 301 transitions, 828 flow [2023-11-26 10:43:11,706 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=828, PETRI_PLACES=324, PETRI_TRANSITIONS=301} [2023-11-26 10:43:11,707 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 43 predicate places. [2023-11-26 10:43:11,707 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 301 transitions, 828 flow [2023-11-26 10:43:11,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 201.16666666666666) internal successors, (1207), 6 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:11,708 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:11,708 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] [2023-11-26 10:43:11,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:43:11,709 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)] === [2023-11-26 10:43:11,709 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:11,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1221561647, now seen corresponding path program 1 times [2023-11-26 10:43:11,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:11,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533330924] [2023-11-26 10:43:11,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:11,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:12,657 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:12,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:12,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533330924] [2023-11-26 10:43:12,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533330924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:12,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:12,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:43:12,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068336068] [2023-11-26 10:43:12,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:12,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:43:12,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:12,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:43:12,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:43:13,118 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 284 [2023-11-26 10:43:13,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 301 transitions, 828 flow. Second operand has 6 states, 6 states have (on average 202.66666666666666) internal successors, (1216), 6 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:13,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:13,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 284 [2023-11-26 10:43:13,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:13,686 INFO L124 PetriNetUnfolderBase]: 366/1775 cut-off events. [2023-11-26 10:43:13,687 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-11-26 10:43:13,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2785 conditions, 1775 events. 366/1775 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9969 event pairs, 364 based on Foata normal form. 0/1657 useless extension candidates. Maximal degree in co-relation 2594. Up to 844 conditions per place. [2023-11-26 10:43:13,700 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 78 selfloop transitions, 5 changer transitions 0/300 dead transitions. [2023-11-26 10:43:13,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 300 transitions, 992 flow [2023-11-26 10:43:13,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:43:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:43:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1260 transitions. [2023-11-26 10:43:13,704 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7394366197183099 [2023-11-26 10:43:13,704 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1260 transitions. [2023-11-26 10:43:13,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1260 transitions. [2023-11-26 10:43:13,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:13,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1260 transitions. [2023-11-26 10:43:13,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 210.0) internal successors, (1260), 6 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:13,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:13,712 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:13,712 INFO L175 Difference]: Start difference. First operand has 324 places, 301 transitions, 828 flow. Second operand 6 states and 1260 transitions. [2023-11-26 10:43:13,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 300 transitions, 992 flow [2023-11-26 10:43:13,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 300 transitions, 982 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:43:13,722 INFO L231 Difference]: Finished difference. Result has 323 places, 300 transitions, 826 flow [2023-11-26 10:43:13,723 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=826, PETRI_PLACES=323, PETRI_TRANSITIONS=300} [2023-11-26 10:43:13,724 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 42 predicate places. [2023-11-26 10:43:13,725 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 300 transitions, 826 flow [2023-11-26 10:43:13,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 202.66666666666666) internal successors, (1216), 6 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:13,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:13,726 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:13,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:43:13,726 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)] === [2023-11-26 10:43:13,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:13,727 INFO L85 PathProgramCache]: Analyzing trace with hash -546960638, now seen corresponding path program 1 times [2023-11-26 10:43:13,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:13,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928507086] [2023-11-26 10:43:13,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:13,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:14,005 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:14,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:14,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928507086] [2023-11-26 10:43:14,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928507086] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:43:14,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441274928] [2023-11-26 10:43:14,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:14,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:14,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:14,008 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:43:14,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 10:43:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:14,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:43:14,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:14,450 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:14,451 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:43:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:14,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441274928] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:43:14,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:43:14,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-26 10:43:14,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082001674] [2023-11-26 10:43:14,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:43:14,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 10:43:14,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:14,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 10:43:14,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:43:14,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 284 [2023-11-26 10:43:14,799 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 300 transitions, 826 flow. Second operand has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:14,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:14,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 284 [2023-11-26 10:43:14,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:15,016 INFO L124 PetriNetUnfolderBase]: 8/604 cut-off events. [2023-11-26 10:43:15,016 INFO L125 PetriNetUnfolderBase]: For 126/126 co-relation queries the response was YES. [2023-11-26 10:43:15,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 604 events. 8/604 cut-off events. For 126/126 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 399 event pairs, 6 based on Foata normal form. 2/586 useless extension candidates. Maximal degree in co-relation 610. Up to 24 conditions per place. [2023-11-26 10:43:15,020 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 14 selfloop transitions, 9 changer transitions 0/308 dead transitions. [2023-11-26 10:43:15,020 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 308 transitions, 890 flow [2023-11-26 10:43:15,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-26 10:43:15,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-26 10:43:15,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2419 transitions. [2023-11-26 10:43:15,025 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9464006259780907 [2023-11-26 10:43:15,025 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2419 transitions. [2023-11-26 10:43:15,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2419 transitions. [2023-11-26 10:43:15,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:15,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2419 transitions. [2023-11-26 10:43:15,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 268.77777777777777) internal successors, (2419), 9 states have internal predecessors, (2419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:15,035 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:15,036 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 284.0) internal successors, (2840), 10 states have internal predecessors, (2840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:15,036 INFO L175 Difference]: Start difference. First operand has 323 places, 300 transitions, 826 flow. Second operand 9 states and 2419 transitions. [2023-11-26 10:43:15,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 308 transitions, 890 flow [2023-11-26 10:43:15,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 308 transitions, 880 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:43:15,047 INFO L231 Difference]: Finished difference. Result has 329 places, 306 transitions, 866 flow [2023-11-26 10:43:15,047 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=866, PETRI_PLACES=329, PETRI_TRANSITIONS=306} [2023-11-26 10:43:15,048 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 48 predicate places. [2023-11-26 10:43:15,048 INFO L495 AbstractCegarLoop]: Abstraction has has 329 places, 306 transitions, 866 flow [2023-11-26 10:43:15,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 268.0) internal successors, (2680), 10 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:15,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:15,050 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] [2023-11-26 10:43:15,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-26 10:43:15,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 10:43:15,258 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 10:43:15,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:15,258 INFO L85 PathProgramCache]: Analyzing trace with hash 25044610, now seen corresponding path program 2 times [2023-11-26 10:43:15,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:15,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246319484] [2023-11-26 10:43:15,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:15,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:16,204 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:16,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:16,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246319484] [2023-11-26 10:43:16,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246319484] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:43:16,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472928219] [2023-11-26 10:43:16,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:43:16,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:16,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:16,207 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:43:16,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 10:43:16,534 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 10:43:16,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:43:16,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-26 10:43:16,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:16,566 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 [2023-11-26 10:43:16,581 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 [2023-11-26 10:43:16,605 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:43:16,606 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 [2023-11-26 10:43:16,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:43:16,641 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 [2023-11-26 10:43:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2023-11-26 10:43:16,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:43:16,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472928219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:16,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:43:16,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-26 10:43:16,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257320261] [2023-11-26 10:43:16,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:16,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:43:16,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:16,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:43:16,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-26 10:43:17,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 284 [2023-11-26 10:43:17,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 306 transitions, 866 flow. Second operand has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:17,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:17,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 284 [2023-11-26 10:43:17,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:18,422 INFO L124 PetriNetUnfolderBase]: 258/1927 cut-off events. [2023-11-26 10:43:18,422 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2023-11-26 10:43:18,430 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2730 conditions, 1927 events. 258/1927 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 10299 event pairs, 34 based on Foata normal form. 0/1801 useless extension candidates. Maximal degree in co-relation 2535. Up to 491 conditions per place. [2023-11-26 10:43:18,438 INFO L140 encePairwiseOnDemand]: 261/284 looper letters, 67 selfloop transitions, 70 changer transitions 0/384 dead transitions. [2023-11-26 10:43:18,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 384 transitions, 1296 flow [2023-11-26 10:43:18,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:43:18,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:43:18,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1464 transitions. [2023-11-26 10:43:18,441 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8591549295774648 [2023-11-26 10:43:18,442 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1464 transitions. [2023-11-26 10:43:18,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1464 transitions. [2023-11-26 10:43:18,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:18,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1464 transitions. [2023-11-26 10:43:18,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.0) internal successors, (1464), 6 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:18,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:18,449 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:18,449 INFO L175 Difference]: Start difference. First operand has 329 places, 306 transitions, 866 flow. Second operand 6 states and 1464 transitions. [2023-11-26 10:43:18,449 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 384 transitions, 1296 flow [2023-11-26 10:43:18,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 384 transitions, 1290 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-26 10:43:18,461 INFO L231 Difference]: Finished difference. Result has 338 places, 375 transitions, 1322 flow [2023-11-26 10:43:18,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=860, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1322, PETRI_PLACES=338, PETRI_TRANSITIONS=375} [2023-11-26 10:43:18,463 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 57 predicate places. [2023-11-26 10:43:18,463 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 375 transitions, 1322 flow [2023-11-26 10:43:18,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 227.33333333333334) internal successors, (1364), 6 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:18,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:18,464 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, 1, 1] [2023-11-26 10:43:18,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-26 10:43:18,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:18,671 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 10:43:18,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:18,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1067711899, now seen corresponding path program 1 times [2023-11-26 10:43:18,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:18,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253640705] [2023-11-26 10:43:18,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:18,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:19,442 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:19,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:19,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253640705] [2023-11-26 10:43:19,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253640705] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:43:19,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389243635] [2023-11-26 10:43:19,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:19,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:19,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:19,445 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:43:19,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 10:43:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:20,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 1511 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 10:43:20,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:20,511 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:43:20,992 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 318 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:20,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389243635] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:43:20,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:43:20,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-26 10:43:20,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941970274] [2023-11-26 10:43:20,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:43:20,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-26 10:43:20,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:20,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-26 10:43:21,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-26 10:43:21,253 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 284 [2023-11-26 10:43:21,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 375 transitions, 1322 flow. Second operand has 18 states, 18 states have (on average 268.0) internal successors, (4824), 18 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:21,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:21,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 284 [2023-11-26 10:43:21,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:22,504 INFO L124 PetriNetUnfolderBase]: 181/2087 cut-off events. [2023-11-26 10:43:22,524 INFO L125 PetriNetUnfolderBase]: For 309/316 co-relation queries the response was YES. [2023-11-26 10:43:22,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2979 conditions, 2087 events. 181/2087 cut-off events. For 309/316 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 7691 event pairs, 23 based on Foata normal form. 4/2005 useless extension candidates. Maximal degree in co-relation 2780. Up to 207 conditions per place. [2023-11-26 10:43:22,541 INFO L140 encePairwiseOnDemand]: 278/284 looper letters, 19 selfloop transitions, 21 changer transitions 0/393 dead transitions. [2023-11-26 10:43:22,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 393 transitions, 1490 flow [2023-11-26 10:43:22,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-26 10:43:22,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-26 10:43:22,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5629 transitions. [2023-11-26 10:43:22,571 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9438296445338699 [2023-11-26 10:43:22,571 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5629 transitions. [2023-11-26 10:43:22,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5629 transitions. [2023-11-26 10:43:22,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:22,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5629 transitions. [2023-11-26 10:43:22,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 268.04761904761904) internal successors, (5629), 21 states have internal predecessors, (5629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,597 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 284.0) internal successors, (6248), 22 states have internal predecessors, (6248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,599 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 284.0) internal successors, (6248), 22 states have internal predecessors, (6248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,599 INFO L175 Difference]: Start difference. First operand has 338 places, 375 transitions, 1322 flow. Second operand 21 states and 5629 transitions. [2023-11-26 10:43:22,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 393 transitions, 1490 flow [2023-11-26 10:43:22,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 393 transitions, 1490 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:43:22,615 INFO L231 Difference]: Finished difference. Result has 363 places, 388 transitions, 1452 flow [2023-11-26 10:43:22,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=1322, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=364, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1452, PETRI_PLACES=363, PETRI_TRANSITIONS=388} [2023-11-26 10:43:22,617 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 82 predicate places. [2023-11-26 10:43:22,618 INFO L495 AbstractCegarLoop]: Abstraction has has 363 places, 388 transitions, 1452 flow [2023-11-26 10:43:22,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 268.0) internal successors, (4824), 18 states have internal predecessors, (4824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:22,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:22,620 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] [2023-11-26 10:43:22,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 10:43:22,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-26 10:43:22,830 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)] === [2023-11-26 10:43:22,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:22,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1061463707, now seen corresponding path program 2 times [2023-11-26 10:43:22,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:22,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547653727] [2023-11-26 10:43:22,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:22,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:25,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:25,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:25,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547653727] [2023-11-26 10:43:25,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547653727] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:43:25,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185282812] [2023-11-26 10:43:25,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:43:25,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:25,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:25,504 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:43:25,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 10:43:26,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 10:43:26,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:43:26,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-26 10:43:26,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:26,180 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 [2023-11-26 10:43:26,197 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 [2023-11-26 10:43:26,225 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:43:26,225 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 [2023-11-26 10:43:26,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:43:26,285 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 [2023-11-26 10:43:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2447 trivial. 0 not checked. [2023-11-26 10:43:26,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:43:26,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185282812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:26,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:43:26,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-26 10:43:26,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144454375] [2023-11-26 10:43:26,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:26,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:43:26,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:26,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:43:26,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-26 10:43:26,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 284 [2023-11-26 10:43:26,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 388 transitions, 1452 flow. Second operand has 6 states, 6 states have (on average 227.16666666666666) internal successors, (1363), 6 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:26,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:43:26,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 284 [2023-11-26 10:43:26,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:43:28,712 INFO L124 PetriNetUnfolderBase]: 546/3157 cut-off events. [2023-11-26 10:43:28,712 INFO L125 PetriNetUnfolderBase]: For 965/1049 co-relation queries the response was YES. [2023-11-26 10:43:28,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5618 conditions, 3157 events. 546/3157 cut-off events. For 965/1049 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 16284 event pairs, 93 based on Foata normal form. 16/3008 useless extension candidates. Maximal degree in co-relation 5414. Up to 981 conditions per place. [2023-11-26 10:43:28,742 INFO L140 encePairwiseOnDemand]: 261/284 looper letters, 131 selfloop transitions, 130 changer transitions 0/525 dead transitions. [2023-11-26 10:43:28,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 525 transitions, 2624 flow [2023-11-26 10:43:28,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:43:28,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:43:28,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1463 transitions. [2023-11-26 10:43:28,745 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8585680751173709 [2023-11-26 10:43:28,746 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1463 transitions. [2023-11-26 10:43:28,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1463 transitions. [2023-11-26 10:43:28,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:43:28,747 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1463 transitions. [2023-11-26 10:43:28,749 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.83333333333334) internal successors, (1463), 6 states have internal predecessors, (1463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:28,752 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:28,753 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 284.0) internal successors, (1988), 7 states have internal predecessors, (1988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:28,753 INFO L175 Difference]: Start difference. First operand has 363 places, 388 transitions, 1452 flow. Second operand 6 states and 1463 transitions. [2023-11-26 10:43:28,753 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 525 transitions, 2624 flow [2023-11-26 10:43:28,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 525 transitions, 2600 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-26 10:43:28,776 INFO L231 Difference]: Finished difference. Result has 367 places, 517 transitions, 2656 flow [2023-11-26 10:43:28,776 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=284, PETRI_DIFFERENCE_MINUEND_FLOW=1428, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2656, PETRI_PLACES=367, PETRI_TRANSITIONS=517} [2023-11-26 10:43:28,777 INFO L281 CegarLoopForPetriNet]: 281 programPoint places, 86 predicate places. [2023-11-26 10:43:28,777 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 517 transitions, 2656 flow [2023-11-26 10:43:28,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 227.16666666666666) internal successors, (1363), 6 states have internal predecessors, (1363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:43:28,778 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:43:28,779 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, 1, 1] [2023-11-26 10:43:28,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 10:43:28,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 10:43:28,986 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-26 10:43:28,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:28,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1402075553, now seen corresponding path program 1 times [2023-11-26 10:43:28,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:28,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613709030] [2023-11-26 10:43:28,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:28,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:31,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:31,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:31,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613709030] [2023-11-26 10:43:31,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613709030] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:43:31,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731047910] [2023-11-26 10:43:31,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:31,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:43:31,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:31,124 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:43:31,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3369ca0c-e960-4ffb-9c8c-3e0fb5b34764/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 10:43:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:32,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 3228 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 10:43:32,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:43:33,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2447 backedges. 0 proven. 2212 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-26 10:43:33,367 INFO L327 TraceCheckSpWp]: Computing backward predicates...