./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 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_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX --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 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:16:40,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:16:40,480 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 16:16:40,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:16:40,487 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:16:40,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:16:40,525 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:16:40,526 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:16:40,526 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:16:40,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:16:40,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:16:40,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:16:40,529 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:16:40,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:16:40,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:16:40,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:16:40,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:16:40,536 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:16:40,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:16:40,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:16:40,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:16:40,542 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:16:40,543 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 16:16:40,543 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:16:40,544 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:16:40,544 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:16:40,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:16:40,545 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:16:40,545 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:16:40,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:16:40,546 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:16:40,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:16:40,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:16:40,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:16:40,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:16:40,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:16:40,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:16:40,552 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:16:40,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:16:40,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:16:40,553 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:16:40,554 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_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2024-11-08 16:16:40,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:16:40,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:16:40,913 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:16:40,915 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:16:40,915 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:16:40,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i Unable to find full path for "g++" [2024-11-08 16:16:43,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:16:43,611 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:16:43,614 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2024-11-08 16:16:43,639 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/data/9ecfea8e9/9e6fe5dbb62f48fa9ec231fa0a5d69b1/FLAGcebbddff9 [2024-11-08 16:16:43,855 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/data/9ecfea8e9/9e6fe5dbb62f48fa9ec231fa0a5d69b1 [2024-11-08 16:16:43,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:16:43,860 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:16:43,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:16:43,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:16:43,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:16:43,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:16:43" (1/1) ... [2024-11-08 16:16:43,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9eed478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:43, skipping insertion in model container [2024-11-08 16:16:43,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:16:43" (1/1) ... [2024-11-08 16:16:43,951 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:16:44,625 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 16:16:44,627 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 16:16:44,630 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 16:16:44,631 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 16:16:44,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:16:44,717 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:16:44,822 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 16:16:44,823 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 16:16:44,824 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 16:16:44,830 WARN L1698 CHandler]: Possible shadowing of function new [2024-11-08 16:16:44,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:16:44,956 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:16:44,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44 WrapperNode [2024-11-08 16:16:44,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:16:44,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:16:44,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:16:44,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:16:44,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (1/1) ... [2024-11-08 16:16:44,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (1/1) ... [2024-11-08 16:16:45,041 INFO L138 Inliner]: procedures = 273, calls = 95, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 267 [2024-11-08 16:16:45,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:16:45,042 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:16:45,043 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:16:45,043 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:16:45,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (1/1) ... [2024-11-08 16:16:45,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (1/1) ... [2024-11-08 16:16:45,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (1/1) ... [2024-11-08 16:16:45,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (1/1) ... [2024-11-08 16:16:45,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (1/1) ... [2024-11-08 16:16:45,093 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (1/1) ... [2024-11-08 16:16:45,096 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (1/1) ... [2024-11-08 16:16:45,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (1/1) ... [2024-11-08 16:16:45,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:16:45,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:16:45,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:16:45,105 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:16:45,106 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (1/1) ... [2024-11-08 16:16:45,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:16:45,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:16:45,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:16:45,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:16:45,203 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-08 16:16:45,204 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-08 16:16:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 16:16:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-08 16:16:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 16:16:45,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 16:16:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 16:16:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 16:16:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:16:45,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:16:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 16:16:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 16:16:45,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:16:45,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:16:45,209 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 16:16:45,446 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:16:45,449 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:16:46,159 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 16:16:46,159 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:16:46,211 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:16:46,212 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:16:46,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:16:46 BoogieIcfgContainer [2024-11-08 16:16:46,214 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:16:46,216 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:16:46,216 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:16:46,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:16:46,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:16:43" (1/3) ... [2024-11-08 16:16:46,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c85bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:16:46, skipping insertion in model container [2024-11-08 16:16:46,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:16:44" (2/3) ... [2024-11-08 16:16:46,222 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c85bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:16:46, skipping insertion in model container [2024-11-08 16:16:46,222 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:16:46" (3/3) ... [2024-11-08 16:16:46,224 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2024-11-08 16:16:46,247 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:16:46,247 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-08 16:16:46,247 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 16:16:46,444 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-08 16:16:46,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 369 places, 376 transitions, 760 flow [2024-11-08 16:16:46,750 INFO L124 PetriNetUnfolderBase]: 14/374 cut-off events. [2024-11-08 16:16:46,750 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:16:46,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 374 events. 14/374 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 594 event pairs, 0 based on Foata normal form. 0/342 useless extension candidates. Maximal degree in co-relation 297. Up to 2 conditions per place. [2024-11-08 16:16:46,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 369 places, 376 transitions, 760 flow [2024-11-08 16:16:46,778 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 367 places, 374 transitions, 754 flow [2024-11-08 16:16:46,796 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:16:46,807 INFO L333 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, 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;@62b36bf1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:16:46,808 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-08 16:16:46,846 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 16:16:46,847 INFO L124 PetriNetUnfolderBase]: 1/109 cut-off events. [2024-11-08 16:16:46,847 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:16:46,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:16:46,848 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:16:46,849 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:16:46,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:16:46,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1258592156, now seen corresponding path program 1 times [2024-11-08 16:16:46,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:16:46,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223076831] [2024-11-08 16:16:46,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:16:46,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:16:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:16:48,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:16:48,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:16:48,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223076831] [2024-11-08 16:16:48,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223076831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:16:48,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:16:48,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:16:48,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070950085] [2024-11-08 16:16:48,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:16:48,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:16:48,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:16:48,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:16:48,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:16:49,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 376 [2024-11-08 16:16:49,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 374 transitions, 754 flow. Second operand has 6 states, 6 states have (on average 291.3333333333333) internal successors, (1748), 6 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:49,469 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:16:49,469 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 376 [2024-11-08 16:16:49,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:16:50,189 INFO L124 PetriNetUnfolderBase]: 499/1941 cut-off events. [2024-11-08 16:16:50,190 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-08 16:16:50,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2840 conditions, 1941 events. 499/1941 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12036 event pairs, 342 based on Foata normal form. 34/1718 useless extension candidates. Maximal degree in co-relation 2573. Up to 846 conditions per place. [2024-11-08 16:16:50,213 INFO L140 encePairwiseOnDemand]: 362/376 looper letters, 72 selfloop transitions, 10 changer transitions 0/370 dead transitions. [2024-11-08 16:16:50,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 370 transitions, 910 flow [2024-11-08 16:16:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:16:50,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:16:50,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1826 transitions. [2024-11-08 16:16:50,240 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8093971631205674 [2024-11-08 16:16:50,243 INFO L175 Difference]: Start difference. First operand has 367 places, 374 transitions, 754 flow. Second operand 6 states and 1826 transitions. [2024-11-08 16:16:50,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 370 transitions, 910 flow [2024-11-08 16:16:50,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 370 transitions, 908 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 16:16:50,265 INFO L231 Difference]: Finished difference. Result has 368 places, 370 transitions, 764 flow [2024-11-08 16:16:50,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=764, PETRI_PLACES=368, PETRI_TRANSITIONS=370} [2024-11-08 16:16:50,274 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, 1 predicate places. [2024-11-08 16:16:50,275 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 370 transitions, 764 flow [2024-11-08 16:16:50,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 291.3333333333333) internal successors, (1748), 6 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:50,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:16:50,278 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:16:50,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:16:50,280 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:16:50,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:16:50,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1858084946, now seen corresponding path program 1 times [2024-11-08 16:16:50,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:16:50,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905834420] [2024-11-08 16:16:50,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:16:50,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:16:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:16:51,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:16:51,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:16:51,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905834420] [2024-11-08 16:16:51,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905834420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:16:51,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:16:51,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:16:51,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030914767] [2024-11-08 16:16:51,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:16:51,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:16:51,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:16:51,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:16:51,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:16:52,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 376 [2024-11-08 16:16:52,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 370 transitions, 764 flow. Second operand has 6 states, 6 states have (on average 291.3333333333333) internal successors, (1748), 6 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:52,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:16:52,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 376 [2024-11-08 16:16:52,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:16:52,583 INFO L124 PetriNetUnfolderBase]: 499/1939 cut-off events. [2024-11-08 16:16:52,583 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:16:52,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2847 conditions, 1939 events. 499/1939 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 11981 event pairs, 342 based on Foata normal form. 0/1684 useless extension candidates. Maximal degree in co-relation 2671. Up to 846 conditions per place. [2024-11-08 16:16:52,605 INFO L140 encePairwiseOnDemand]: 364/376 looper letters, 72 selfloop transitions, 10 changer transitions 0/368 dead transitions. [2024-11-08 16:16:52,605 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 368 transitions, 924 flow [2024-11-08 16:16:52,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:16:52,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:16:52,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1824 transitions. [2024-11-08 16:16:52,611 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8085106382978723 [2024-11-08 16:16:52,611 INFO L175 Difference]: Start difference. First operand has 368 places, 370 transitions, 764 flow. Second operand 6 states and 1824 transitions. [2024-11-08 16:16:52,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 368 transitions, 924 flow [2024-11-08 16:16:52,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 368 transitions, 904 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 16:16:52,623 INFO L231 Difference]: Finished difference. Result has 366 places, 368 transitions, 760 flow [2024-11-08 16:16:52,624 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=760, PETRI_PLACES=366, PETRI_TRANSITIONS=368} [2024-11-08 16:16:52,625 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, -1 predicate places. [2024-11-08 16:16:52,625 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 368 transitions, 760 flow [2024-11-08 16:16:52,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 291.3333333333333) internal successors, (1748), 6 states have internal predecessors, (1748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:52,627 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:16:52,627 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:16:52,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:16:52,628 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:16:52,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:16:52,629 INFO L85 PathProgramCache]: Analyzing trace with hash 6968007, now seen corresponding path program 1 times [2024-11-08 16:16:52,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:16:52,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691065569] [2024-11-08 16:16:52,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:16:52,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:16:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:16:52,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:16:52,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:16:52,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691065569] [2024-11-08 16:16:52,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691065569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:16:52,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:16:52,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:16:52,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624544059] [2024-11-08 16:16:52,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:16:52,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:16:52,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:16:52,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:16:52,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:16:52,842 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 376 [2024-11-08 16:16:52,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 368 transitions, 760 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:52,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:16:52,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 376 [2024-11-08 16:16:52,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:16:52,986 INFO L124 PetriNetUnfolderBase]: 40/681 cut-off events. [2024-11-08 16:16:52,986 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:16:52,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 758 conditions, 681 events. 40/681 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2481 event pairs, 18 based on Foata normal form. 2/621 useless extension candidates. Maximal degree in co-relation 454. Up to 46 conditions per place. [2024-11-08 16:16:52,993 INFO L140 encePairwiseOnDemand]: 372/376 looper letters, 12 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2024-11-08 16:16:52,993 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 369 transitions, 790 flow [2024-11-08 16:16:52,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:16:52,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:16:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1099 transitions. [2024-11-08 16:16:52,997 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.974290780141844 [2024-11-08 16:16:52,998 INFO L175 Difference]: Start difference. First operand has 366 places, 368 transitions, 760 flow. Second operand 3 states and 1099 transitions. [2024-11-08 16:16:52,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 369 transitions, 790 flow [2024-11-08 16:16:53,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 369 transitions, 770 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 16:16:53,008 INFO L231 Difference]: Finished difference. Result has 364 places, 369 transitions, 754 flow [2024-11-08 16:16:53,009 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=754, PETRI_PLACES=364, PETRI_TRANSITIONS=369} [2024-11-08 16:16:53,010 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, -3 predicate places. [2024-11-08 16:16:53,011 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 369 transitions, 754 flow [2024-11-08 16:16:53,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:53,012 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:16:53,013 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:16:53,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:16:53,013 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:16:53,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:16:53,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2114513908, now seen corresponding path program 1 times [2024-11-08 16:16:53,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:16:53,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741788231] [2024-11-08 16:16:53,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:16:53,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:16:53,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:16:53,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:16:53,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:16:53,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741788231] [2024-11-08 16:16:53,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741788231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:16:53,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:16:53,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:16:53,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027324554] [2024-11-08 16:16:53,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:16:53,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:16:53,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:16:53,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:16:53,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:16:54,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 376 [2024-11-08 16:16:54,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 369 transitions, 754 flow. Second operand has 6 states, 6 states have (on average 291.6666666666667) internal successors, (1750), 6 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:54,317 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:16:54,317 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 376 [2024-11-08 16:16:54,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:16:54,846 INFO L124 PetriNetUnfolderBase]: 501/2064 cut-off events. [2024-11-08 16:16:54,846 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 16:16:54,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3017 conditions, 2064 events. 501/2064 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12726 event pairs, 342 based on Foata normal form. 0/1805 useless extension candidates. Maximal degree in co-relation 2759. Up to 894 conditions per place. [2024-11-08 16:16:54,863 INFO L140 encePairwiseOnDemand]: 370/376 looper letters, 79 selfloop transitions, 5 changer transitions 0/368 dead transitions. [2024-11-08 16:16:54,863 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 368 transitions, 920 flow [2024-11-08 16:16:54,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:16:54,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:16:54,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1819 transitions. [2024-11-08 16:16:54,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8062943262411347 [2024-11-08 16:16:54,869 INFO L175 Difference]: Start difference. First operand has 364 places, 369 transitions, 754 flow. Second operand 6 states and 1819 transitions. [2024-11-08 16:16:54,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 368 transitions, 920 flow [2024-11-08 16:16:54,873 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 368 transitions, 918 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:16:54,878 INFO L231 Difference]: Finished difference. Result has 367 places, 368 transitions, 760 flow [2024-11-08 16:16:54,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=760, PETRI_PLACES=367, PETRI_TRANSITIONS=368} [2024-11-08 16:16:54,880 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, 0 predicate places. [2024-11-08 16:16:54,880 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 368 transitions, 760 flow [2024-11-08 16:16:54,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 291.6666666666667) internal successors, (1750), 6 states have internal predecessors, (1750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:54,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:16:54,882 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:16:54,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:16:54,883 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:16:54,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:16:54,883 INFO L85 PathProgramCache]: Analyzing trace with hash 853808767, now seen corresponding path program 1 times [2024-11-08 16:16:54,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:16:54,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961161266] [2024-11-08 16:16:54,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:16:54,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:16:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:16:54,985 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:16:54,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:16:54,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961161266] [2024-11-08 16:16:54,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961161266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:16:54,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:16:54,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:16:54,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783825013] [2024-11-08 16:16:54,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:16:54,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:16:54,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:16:54,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:16:54,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:16:55,004 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 361 out of 376 [2024-11-08 16:16:55,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 368 transitions, 760 flow. Second operand has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:55,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:16:55,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 361 of 376 [2024-11-08 16:16:55,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:16:55,231 INFO L124 PetriNetUnfolderBase]: 40/869 cut-off events. [2024-11-08 16:16:55,232 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:16:55,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 869 events. 40/869 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2421 event pairs, 18 based on Foata normal form. 4/807 useless extension candidates. Maximal degree in co-relation 534. Up to 51 conditions per place. [2024-11-08 16:16:55,237 INFO L140 encePairwiseOnDemand]: 372/376 looper letters, 12 selfloop transitions, 2 changer transitions 0/369 dead transitions. [2024-11-08 16:16:55,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 369 transitions, 790 flow [2024-11-08 16:16:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:16:55,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 16:16:55,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1099 transitions. [2024-11-08 16:16:55,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.974290780141844 [2024-11-08 16:16:55,241 INFO L175 Difference]: Start difference. First operand has 367 places, 368 transitions, 760 flow. Second operand 3 states and 1099 transitions. [2024-11-08 16:16:55,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 369 transitions, 790 flow [2024-11-08 16:16:55,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 369 transitions, 780 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 16:16:55,249 INFO L231 Difference]: Finished difference. Result has 365 places, 369 transitions, 764 flow [2024-11-08 16:16:55,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=366, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=764, PETRI_PLACES=365, PETRI_TRANSITIONS=369} [2024-11-08 16:16:55,251 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, -2 predicate places. [2024-11-08 16:16:55,251 INFO L471 AbstractCegarLoop]: Abstraction has has 365 places, 369 transitions, 764 flow [2024-11-08 16:16:55,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 363.0) internal successors, (1089), 3 states have internal predecessors, (1089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:55,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:16:55,252 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:16:55,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:16:55,253 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:16:55,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:16:55,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1985223517, now seen corresponding path program 1 times [2024-11-08 16:16:55,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:16:55,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674599168] [2024-11-08 16:16:55,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:16:55,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:16:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:16:56,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:16:56,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:16:56,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674599168] [2024-11-08 16:16:56,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674599168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:16:56,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:16:56,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:16:56,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240144308] [2024-11-08 16:16:56,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:16:56,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:16:56,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:16:56,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:16:56,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:16:56,933 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 376 [2024-11-08 16:16:56,937 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 369 transitions, 764 flow. Second operand has 6 states, 6 states have (on average 318.5) internal successors, (1911), 6 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:56,937 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:16:56,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 376 [2024-11-08 16:16:56,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:16:57,276 INFO L124 PetriNetUnfolderBase]: 95/1199 cut-off events. [2024-11-08 16:16:57,277 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 16:16:57,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 1199 events. 95/1199 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4720 event pairs, 42 based on Foata normal form. 0/1089 useless extension candidates. Maximal degree in co-relation 991. Up to 263 conditions per place. [2024-11-08 16:16:57,286 INFO L140 encePairwiseOnDemand]: 370/376 looper letters, 54 selfloop transitions, 5 changer transitions 0/368 dead transitions. [2024-11-08 16:16:57,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 368 transitions, 880 flow [2024-11-08 16:16:57,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:16:57,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:16:57,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1944 transitions. [2024-11-08 16:16:57,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8617021276595744 [2024-11-08 16:16:57,293 INFO L175 Difference]: Start difference. First operand has 365 places, 369 transitions, 764 flow. Second operand 6 states and 1944 transitions. [2024-11-08 16:16:57,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 368 transitions, 880 flow [2024-11-08 16:16:57,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 368 transitions, 878 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 16:16:57,304 INFO L231 Difference]: Finished difference. Result has 368 places, 368 transitions, 770 flow [2024-11-08 16:16:57,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=363, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=770, PETRI_PLACES=368, PETRI_TRANSITIONS=368} [2024-11-08 16:16:57,306 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, 1 predicate places. [2024-11-08 16:16:57,306 INFO L471 AbstractCegarLoop]: Abstraction has has 368 places, 368 transitions, 770 flow [2024-11-08 16:16:57,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 318.5) internal successors, (1911), 6 states have internal predecessors, (1911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:57,308 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:16:57,308 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:16:57,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:16:57,309 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:16:57,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:16:57,310 INFO L85 PathProgramCache]: Analyzing trace with hash -869234425, now seen corresponding path program 1 times [2024-11-08 16:16:57,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:16:57,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085730263] [2024-11-08 16:16:57,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:16:57,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:16:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:16:58,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:16:58,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:16:58,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085730263] [2024-11-08 16:16:58,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085730263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:16:58,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:16:58,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:16:58,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630923525] [2024-11-08 16:16:58,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:16:58,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:16:58,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:16:58,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:16:58,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:16:58,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 289 out of 376 [2024-11-08 16:16:58,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 368 transitions, 770 flow. Second operand has 6 states, 6 states have (on average 294.3333333333333) internal successors, (1766), 6 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:58,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:16:58,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 289 of 376 [2024-11-08 16:16:58,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:16:59,697 INFO L124 PetriNetUnfolderBase]: 501/2246 cut-off events. [2024-11-08 16:16:59,697 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 16:16:59,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3305 conditions, 2246 events. 501/2246 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12749 event pairs, 342 based on Foata normal form. 0/1989 useless extension candidates. Maximal degree in co-relation 2804. Up to 960 conditions per place. [2024-11-08 16:16:59,713 INFO L140 encePairwiseOnDemand]: 370/376 looper letters, 79 selfloop transitions, 5 changer transitions 0/367 dead transitions. [2024-11-08 16:16:59,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 367 transitions, 936 flow [2024-11-08 16:16:59,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:16:59,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:16:59,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1819 transitions. [2024-11-08 16:16:59,718 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8062943262411347 [2024-11-08 16:16:59,719 INFO L175 Difference]: Start difference. First operand has 368 places, 368 transitions, 770 flow. Second operand 6 states and 1819 transitions. [2024-11-08 16:16:59,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 367 transitions, 936 flow [2024-11-08 16:16:59,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 367 transitions, 926 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 16:16:59,727 INFO L231 Difference]: Finished difference. Result has 367 places, 367 transitions, 768 flow [2024-11-08 16:16:59,728 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=362, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=367, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=768, PETRI_PLACES=367, PETRI_TRANSITIONS=367} [2024-11-08 16:16:59,729 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, 0 predicate places. [2024-11-08 16:16:59,730 INFO L471 AbstractCegarLoop]: Abstraction has has 367 places, 367 transitions, 768 flow [2024-11-08 16:16:59,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 294.3333333333333) internal successors, (1766), 6 states have internal predecessors, (1766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:16:59,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:16:59,732 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:16:59,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:16:59,733 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:16:59,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:16:59,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1772739405, now seen corresponding path program 1 times [2024-11-08 16:16:59,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:16:59,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999271482] [2024-11-08 16:16:59,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:16:59,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:16:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:00,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:17:00,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:17:00,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999271482] [2024-11-08 16:17:00,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999271482] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:17:00,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:17:00,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:17:00,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768471764] [2024-11-08 16:17:00,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:17:00,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:17:00,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:17:00,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:17:00,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:17:01,254 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 376 [2024-11-08 16:17:01,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 367 transitions, 768 flow. Second operand has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:01,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:17:01,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 376 [2024-11-08 16:17:01,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:17:02,084 INFO L124 PetriNetUnfolderBase]: 501/2242 cut-off events. [2024-11-08 16:17:02,084 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 16:17:02,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3285 conditions, 2242 events. 501/2242 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12773 event pairs, 342 based on Foata normal form. 0/1989 useless extension candidates. Maximal degree in co-relation 2820. Up to 944 conditions per place. [2024-11-08 16:17:02,105 INFO L140 encePairwiseOnDemand]: 370/376 looper letters, 75 selfloop transitions, 5 changer transitions 0/366 dead transitions. [2024-11-08 16:17:02,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 366 transitions, 926 flow [2024-11-08 16:17:02,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:17:02,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:17:02,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1839 transitions. [2024-11-08 16:17:02,112 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8151595744680851 [2024-11-08 16:17:02,113 INFO L175 Difference]: Start difference. First operand has 367 places, 367 transitions, 768 flow. Second operand 6 states and 1839 transitions. [2024-11-08 16:17:02,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 366 transitions, 926 flow [2024-11-08 16:17:02,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 366 places, 366 transitions, 916 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 16:17:02,124 INFO L231 Difference]: Finished difference. Result has 366 places, 366 transitions, 766 flow [2024-11-08 16:17:02,125 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=766, PETRI_PLACES=366, PETRI_TRANSITIONS=366} [2024-11-08 16:17:02,126 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, -1 predicate places. [2024-11-08 16:17:02,126 INFO L471 AbstractCegarLoop]: Abstraction has has 366 places, 366 transitions, 766 flow [2024-11-08 16:17:02,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:02,128 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:17:02,128 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:17:02,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:17:02,130 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:17:02,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:17:02,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1373965869, now seen corresponding path program 1 times [2024-11-08 16:17:02,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:17:02,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797412636] [2024-11-08 16:17:02,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:17:02,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:17:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:03,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:17:03,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:17:03,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797412636] [2024-11-08 16:17:03,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797412636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:17:03,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:17:03,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:17:03,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76165691] [2024-11-08 16:17:03,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:17:03,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:17:03,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:17:03,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:17:03,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:17:03,740 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 293 out of 376 [2024-11-08 16:17:03,743 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 366 transitions, 766 flow. Second operand has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:03,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:17:03,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 293 of 376 [2024-11-08 16:17:03,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:17:04,329 INFO L124 PetriNetUnfolderBase]: 501/2238 cut-off events. [2024-11-08 16:17:04,329 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 16:17:04,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3281 conditions, 2238 events. 501/2238 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12709 event pairs, 342 based on Foata normal form. 0/1989 useless extension candidates. Maximal degree in co-relation 2835. Up to 944 conditions per place. [2024-11-08 16:17:04,353 INFO L140 encePairwiseOnDemand]: 370/376 looper letters, 75 selfloop transitions, 5 changer transitions 0/365 dead transitions. [2024-11-08 16:17:04,353 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 365 transitions, 924 flow [2024-11-08 16:17:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:17:04,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:17:04,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1839 transitions. [2024-11-08 16:17:04,359 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8151595744680851 [2024-11-08 16:17:04,359 INFO L175 Difference]: Start difference. First operand has 366 places, 366 transitions, 766 flow. Second operand 6 states and 1839 transitions. [2024-11-08 16:17:04,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 365 transitions, 924 flow [2024-11-08 16:17:04,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 365 places, 365 transitions, 914 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 16:17:04,370 INFO L231 Difference]: Finished difference. Result has 365 places, 365 transitions, 764 flow [2024-11-08 16:17:04,371 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=360, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=764, PETRI_PLACES=365, PETRI_TRANSITIONS=365} [2024-11-08 16:17:04,372 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, -2 predicate places. [2024-11-08 16:17:04,372 INFO L471 AbstractCegarLoop]: Abstraction has has 365 places, 365 transitions, 764 flow [2024-11-08 16:17:04,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:04,374 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:17:04,375 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:17:04,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:17:04,375 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:17:04,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:17:04,376 INFO L85 PathProgramCache]: Analyzing trace with hash 115436573, now seen corresponding path program 1 times [2024-11-08 16:17:04,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:17:04,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37425303] [2024-11-08 16:17:04,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:17:04,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:17:04,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:05,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:17:05,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:17:05,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37425303] [2024-11-08 16:17:05,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37425303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:17:05,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:17:05,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:17:05,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667024581] [2024-11-08 16:17:05,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:17:05,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:17:05,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:17:05,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:17:05,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:17:05,831 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 376 [2024-11-08 16:17:05,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 365 transitions, 764 flow. Second operand has 6 states, 6 states have (on average 295.5) internal successors, (1773), 6 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:05,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:17:05,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 376 [2024-11-08 16:17:05,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:17:06,403 INFO L124 PetriNetUnfolderBase]: 501/2234 cut-off events. [2024-11-08 16:17:06,403 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 16:17:06,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3297 conditions, 2234 events. 501/2234 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 12696 event pairs, 342 based on Foata normal form. 0/1989 useless extension candidates. Maximal degree in co-relation 2848. Up to 964 conditions per place. [2024-11-08 16:17:06,422 INFO L140 encePairwiseOnDemand]: 370/376 looper letters, 80 selfloop transitions, 5 changer transitions 0/364 dead transitions. [2024-11-08 16:17:06,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 364 transitions, 932 flow [2024-11-08 16:17:06,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:17:06,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:17:06,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1814 transitions. [2024-11-08 16:17:06,429 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8040780141843972 [2024-11-08 16:17:06,429 INFO L175 Difference]: Start difference. First operand has 365 places, 365 transitions, 764 flow. Second operand 6 states and 1814 transitions. [2024-11-08 16:17:06,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 364 transitions, 932 flow [2024-11-08 16:17:06,434 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 364 places, 364 transitions, 922 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 16:17:06,439 INFO L231 Difference]: Finished difference. Result has 364 places, 364 transitions, 762 flow [2024-11-08 16:17:06,440 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=762, PETRI_PLACES=364, PETRI_TRANSITIONS=364} [2024-11-08 16:17:06,442 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, -3 predicate places. [2024-11-08 16:17:06,442 INFO L471 AbstractCegarLoop]: Abstraction has has 364 places, 364 transitions, 762 flow [2024-11-08 16:17:06,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 295.5) internal successors, (1773), 6 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:06,444 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:17:06,444 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:17:06,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:17:06,444 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:17:06,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:17:06,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1883034365, now seen corresponding path program 1 times [2024-11-08 16:17:06,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:17:06,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999139939] [2024-11-08 16:17:06,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:17:06,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:17:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:17:06,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:17:06,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999139939] [2024-11-08 16:17:06,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999139939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:17:06,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266604128] [2024-11-08 16:17:06,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:17:06,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:17:06,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:17:06,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:17:06,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:17:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:07,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 16:17:07,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:17:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:17:07,572 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:17:07,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:17:07,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266604128] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:17:07,807 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:17:07,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 16:17:07,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36838622] [2024-11-08 16:17:07,808 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:17:07,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:17:07,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:17:07,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:17:07,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:17:07,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 376 [2024-11-08 16:17:07,858 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 364 transitions, 762 flow. Second operand has 10 states, 10 states have (on average 359.3) internal successors, (3593), 10 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:07,858 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:17:07,858 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 376 [2024-11-08 16:17:07,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:17:08,337 INFO L124 PetriNetUnfolderBase]: 38/1033 cut-off events. [2024-11-08 16:17:08,337 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-08 16:17:08,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 1033 events. 38/1033 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1852 event pairs, 18 based on Foata normal form. 8/995 useless extension candidates. Maximal degree in co-relation 525. Up to 49 conditions per place. [2024-11-08 16:17:08,344 INFO L140 encePairwiseOnDemand]: 369/376 looper letters, 18 selfloop transitions, 9 changer transitions 0/373 dead transitions. [2024-11-08 16:17:08,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 373 transitions, 834 flow [2024-11-08 16:17:08,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:17:08,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 16:17:08,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 3244 transitions. [2024-11-08 16:17:08,355 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.958628841607565 [2024-11-08 16:17:08,355 INFO L175 Difference]: Start difference. First operand has 364 places, 364 transitions, 762 flow. Second operand 9 states and 3244 transitions. [2024-11-08 16:17:08,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 373 transitions, 834 flow [2024-11-08 16:17:08,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 373 transitions, 824 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 16:17:08,375 INFO L231 Difference]: Finished difference. Result has 370 places, 369 transitions, 798 flow [2024-11-08 16:17:08,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=798, PETRI_PLACES=370, PETRI_TRANSITIONS=369} [2024-11-08 16:17:08,377 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, 3 predicate places. [2024-11-08 16:17:08,377 INFO L471 AbstractCegarLoop]: Abstraction has has 370 places, 369 transitions, 798 flow [2024-11-08 16:17:08,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 359.3) internal successors, (3593), 10 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:08,379 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:17:08,380 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:17:08,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:17:08,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:17:08,585 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:17:08,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:17:08,586 INFO L85 PathProgramCache]: Analyzing trace with hash -521498749, now seen corresponding path program 2 times [2024-11-08 16:17:08,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:17:08,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858798805] [2024-11-08 16:17:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:17:08,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:17:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:09,418 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-08 16:17:09,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:17:09,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858798805] [2024-11-08 16:17:09,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858798805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:17:09,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899635803] [2024-11-08 16:17:09,420 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:17:09,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:17:09,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:17:09,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:17:09,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:17:09,796 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:17:09,796 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:17:09,802 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 16:17:09,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:17:09,877 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 [2024-11-08 16:17:09,901 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 [2024-11-08 16:17:09,945 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:17:09,946 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 [2024-11-08 16:17:10,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:17:10,007 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 [2024-11-08 16:17:10,053 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2024-11-08 16:17:10,054 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:17:10,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899635803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:17:10,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:17:10,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-08 16:17:10,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770009493] [2024-11-08 16:17:10,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:17:10,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:17:10,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:17:10,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:17:10,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:17:11,790 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 376 [2024-11-08 16:17:11,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 369 transitions, 798 flow. Second operand has 6 states, 6 states have (on average 322.5) internal successors, (1935), 6 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:11,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:17:11,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 376 [2024-11-08 16:17:11,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:17:12,619 INFO L124 PetriNetUnfolderBase]: 238/1994 cut-off events. [2024-11-08 16:17:12,619 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-08 16:17:12,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2613 conditions, 1994 events. 238/1994 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 9150 event pairs, 54 based on Foata normal form. 0/1813 useless extension candidates. Maximal degree in co-relation 1970. Up to 448 conditions per place. [2024-11-08 16:17:12,644 INFO L140 encePairwiseOnDemand]: 364/376 looper letters, 71 selfloop transitions, 23 changer transitions 0/404 dead transitions. [2024-11-08 16:17:12,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 404 transitions, 1064 flow [2024-11-08 16:17:12,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:17:12,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:17:12,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1985 transitions. [2024-11-08 16:17:12,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8798758865248227 [2024-11-08 16:17:12,651 INFO L175 Difference]: Start difference. First operand has 370 places, 369 transitions, 798 flow. Second operand 6 states and 1985 transitions. [2024-11-08 16:17:12,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 404 transitions, 1064 flow [2024-11-08 16:17:12,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 404 transitions, 1058 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-08 16:17:12,662 INFO L231 Difference]: Finished difference. Result has 379 places, 391 transitions, 950 flow [2024-11-08 16:17:12,663 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=950, PETRI_PLACES=379, PETRI_TRANSITIONS=391} [2024-11-08 16:17:12,664 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, 12 predicate places. [2024-11-08 16:17:12,666 INFO L471 AbstractCegarLoop]: Abstraction has has 379 places, 391 transitions, 950 flow [2024-11-08 16:17:12,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 322.5) internal successors, (1935), 6 states have internal predecessors, (1935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:12,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:17:12,668 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:17:12,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:17:12,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 16:17:12,869 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:17:12,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:17:12,869 INFO L85 PathProgramCache]: Analyzing trace with hash 21476514, now seen corresponding path program 1 times [2024-11-08 16:17:12,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:17:12,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360655305] [2024-11-08 16:17:12,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:17:12,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:17:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:13,519 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-08 16:17:13,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:17:13,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360655305] [2024-11-08 16:17:13,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360655305] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:17:13,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431726119] [2024-11-08 16:17:13,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:17:13,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:17:13,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:17:13,523 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:17:13,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:17:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:14,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 1495 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 16:17:14,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:17:14,810 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 1 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:17:14,811 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:17:15,479 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 1 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:17:15,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431726119] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:17:15,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:17:15,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 19 [2024-11-08 16:17:15,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289289852] [2024-11-08 16:17:15,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:17:15,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 16:17:15,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:17:15,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 16:17:15,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:17:15,751 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 350 out of 376 [2024-11-08 16:17:15,756 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 379 places, 391 transitions, 950 flow. Second operand has 19 states, 19 states have (on average 353.05263157894734) internal successors, (6708), 19 states have internal predecessors, (6708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:15,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:17:15,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 350 of 376 [2024-11-08 16:17:15,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:17:18,459 INFO L124 PetriNetUnfolderBase]: 229/3556 cut-off events. [2024-11-08 16:17:18,459 INFO L125 PetriNetUnfolderBase]: For 136/140 co-relation queries the response was YES. [2024-11-08 16:17:18,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4303 conditions, 3556 events. 229/3556 cut-off events. For 136/140 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9831 event pairs, 55 based on Foata normal form. 14/3359 useless extension candidates. Maximal degree in co-relation 2925. Up to 147 conditions per place. [2024-11-08 16:17:18,477 INFO L140 encePairwiseOnDemand]: 364/376 looper letters, 69 selfloop transitions, 68 changer transitions 0/497 dead transitions. [2024-11-08 16:17:18,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 497 transitions, 1674 flow [2024-11-08 16:17:18,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-08 16:17:18,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2024-11-08 16:17:18,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 22201 transitions. [2024-11-08 16:17:18,660 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.937225599459642 [2024-11-08 16:17:18,661 INFO L175 Difference]: Start difference. First operand has 379 places, 391 transitions, 950 flow. Second operand 63 states and 22201 transitions. [2024-11-08 16:17:18,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 497 transitions, 1674 flow [2024-11-08 16:17:18,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 497 transitions, 1674 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:17:18,676 INFO L231 Difference]: Finished difference. Result has 457 places, 453 transitions, 1472 flow [2024-11-08 16:17:18,677 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=950, PETRI_DIFFERENCE_MINUEND_PLACES=379, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=1472, PETRI_PLACES=457, PETRI_TRANSITIONS=453} [2024-11-08 16:17:18,678 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, 90 predicate places. [2024-11-08 16:17:18,678 INFO L471 AbstractCegarLoop]: Abstraction has has 457 places, 453 transitions, 1472 flow [2024-11-08 16:17:18,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 353.05263157894734) internal successors, (6708), 19 states have internal predecessors, (6708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:18,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:17:18,682 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:17:18,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:17:18,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:17:18,884 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting fErr0ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:17:18,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:17:18,885 INFO L85 PathProgramCache]: Analyzing trace with hash 211459942, now seen corresponding path program 2 times [2024-11-08 16:17:18,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:17:18,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740630253] [2024-11-08 16:17:18,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:17:18,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:17:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 8341 backedges. 4500 proven. 1918 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2024-11-08 16:17:23,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:17:23,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740630253] [2024-11-08 16:17:23,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740630253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:17:23,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334682766] [2024-11-08 16:17:23,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:17:23,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:17:23,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:17:23,803 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:17:23,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:17:24,617 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:17:24,617 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:17:24,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 16:17:24,641 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:17:24,698 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 [2024-11-08 16:17:24,723 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 [2024-11-08 16:17:24,762 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:17:24,762 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 [2024-11-08 16:17:24,862 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:17:24,863 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 [2024-11-08 16:17:24,914 INFO L134 CoverageAnalysis]: Checked inductivity of 8341 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8341 trivial. 0 not checked. [2024-11-08 16:17:24,914 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:17:24,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334682766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:17:24,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:17:24,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2024-11-08 16:17:24,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344495738] [2024-11-08 16:17:24,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:17:24,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:17:24,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:17:24,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:17:24,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:17:26,397 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 376 [2024-11-08 16:17:26,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 453 transitions, 1472 flow. Second operand has 6 states, 6 states have (on average 322.6666666666667) internal successors, (1936), 6 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:26,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:17:26,400 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 376 [2024-11-08 16:17:26,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:17:29,364 INFO L124 PetriNetUnfolderBase]: 380/4164 cut-off events. [2024-11-08 16:17:29,364 INFO L125 PetriNetUnfolderBase]: For 703/739 co-relation queries the response was YES. [2024-11-08 16:17:29,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6024 conditions, 4164 events. 380/4164 cut-off events. For 703/739 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 16254 event pairs, 61 based on Foata normal form. 8/3890 useless extension candidates. Maximal degree in co-relation 3960. Up to 1009 conditions per place. [2024-11-08 16:17:29,386 INFO L140 encePairwiseOnDemand]: 364/376 looper letters, 84 selfloop transitions, 31 changer transitions 0/492 dead transitions. [2024-11-08 16:17:29,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 462 places, 492 transitions, 1822 flow [2024-11-08 16:17:29,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:17:29,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:17:29,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1981 transitions. [2024-11-08 16:17:29,392 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8781028368794326 [2024-11-08 16:17:29,393 INFO L175 Difference]: Start difference. First operand has 457 places, 453 transitions, 1472 flow. Second operand 6 states and 1981 transitions. [2024-11-08 16:17:29,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 462 places, 492 transitions, 1822 flow [2024-11-08 16:17:29,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 455 places, 492 transitions, 1746 flow, removed 19 selfloop flow, removed 7 redundant places. [2024-11-08 16:17:29,412 INFO L231 Difference]: Finished difference. Result has 460 places, 483 transitions, 1654 flow [2024-11-08 16:17:29,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=1396, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1654, PETRI_PLACES=460, PETRI_TRANSITIONS=483} [2024-11-08 16:17:29,415 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, 93 predicate places. [2024-11-08 16:17:29,415 INFO L471 AbstractCegarLoop]: Abstraction has has 460 places, 483 transitions, 1654 flow [2024-11-08 16:17:29,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 322.6666666666667) internal successors, (1936), 6 states have internal predecessors, (1936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:29,420 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:17:29,422 INFO L204 CegarLoopForPetriNet]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:17:29,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 16:17:29,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:17:29,623 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:17:29,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:17:29,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1931135030, now seen corresponding path program 1 times [2024-11-08 16:17:29,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:17:29,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760026693] [2024-11-08 16:17:29,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:17:29,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:17:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:34,178 INFO L134 CoverageAnalysis]: Checked inductivity of 8341 backedges. 4500 proven. 1918 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2024-11-08 16:17:34,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:17:34,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760026693] [2024-11-08 16:17:34,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760026693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:17:34,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199512575] [2024-11-08 16:17:34,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:17:34,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:17:34,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:17:34,181 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:17:34,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:17:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:17:36,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 5675 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 16:17:36,122 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:17:37,321 INFO L134 CoverageAnalysis]: Checked inductivity of 8341 backedges. 4500 proven. 1918 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2024-11-08 16:17:37,321 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:17:38,659 INFO L134 CoverageAnalysis]: Checked inductivity of 8341 backedges. 4500 proven. 1918 refuted. 0 times theorem prover too weak. 1923 trivial. 0 not checked. [2024-11-08 16:17:38,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199512575] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:17:38,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:17:38,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-08 16:17:38,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499414160] [2024-11-08 16:17:38,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:17:38,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 16:17:38,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:17:38,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 16:17:38,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 16:17:38,760 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 376 [2024-11-08 16:17:38,772 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 483 transitions, 1654 flow. Second operand has 34 states, 34 states have (on average 359.6470588235294) internal successors, (12228), 34 states have internal predecessors, (12228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:38,772 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:17:38,772 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 376 [2024-11-08 16:17:38,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:17:43,602 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([690] L1032-4-->L1037-2: Formula: (and (= |v_#pthreadsMutex_11| (store |v_#pthreadsMutex_12| |v_~#c~0.base_90| (store (select |v_#pthreadsMutex_12| |v_~#c~0.base_90|) (+ (* |v_fThread1of1ForFork0_~j~0#1_33| 24) |v_~#c~0.offset_90| 80) 0))) (= |v_fThread1of1ForFork0_#t~ret18#1_1| 0)) InVars {~#c~0.base=|v_~#c~0.base_90|, #pthreadsMutex=|v_#pthreadsMutex_12|, fThread1of1ForFork0_~j~0#1=|v_fThread1of1ForFork0_~j~0#1_33|, ~#c~0.offset=|v_~#c~0.offset_90|} OutVars{~#c~0.base=|v_~#c~0.base_90|, #pthreadsMutex=|v_#pthreadsMutex_11|, fThread1of1ForFork0_~j~0#1=|v_fThread1of1ForFork0_~j~0#1_33|, ~#c~0.offset=|v_~#c~0.offset_90|, fThread1of1ForFork0_#t~ret18#1=|v_fThread1of1ForFork0_#t~ret18#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, fThread1of1ForFork0_#t~ret18#1][431], [Black: 5610#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 3)), Black: 5664#(and (<= |ULTIMATE.start_main_~j~1#1| 28) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 5616#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 27)), Black: 5652#(and (<= |ULTIMATE.start_main_~j~1#1| 3) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 386#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 5670#(and (<= |ULTIMATE.start_main_~j~1#1| 29) (<= |ULTIMATE.start_main_~i~0#1| 1)), 370#true, Black: 4456#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 5628#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 29)), Black: 5632#(and (= 0 |ULTIMATE.start_main_#t~post22#1|) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 4742#(< |ULTIMATE.start_main_~j~1#1| 28), Black: 4209#(<= |ULTIMATE.start_main_~j~1#1| 3), Black: 5658#(and (<= |ULTIMATE.start_main_~j~1#1| 27) (<= |ULTIMATE.start_main_~i~0#1| 1)), Black: 3072#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 5622#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~j~1#1| 28)), Black: 396#(= |ULTIMATE.start_main_~j~1#1| 0), Black: 4467#(< |ULTIMATE.start_main_~j~1#1| 29), Black: 3074#(<= |ULTIMATE.start_main_~i~0#1| 1), 5711#true, Black: 10067#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), Black: 432#(<= |ULTIMATE.start_main_~j~1#1| 1), Black: 1227#(< |ULTIMATE.start_main_~j~1#1| 30), Black: 10075#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 3 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), 256#ULTIMATE.startFINALtrue, Black: 10063#(= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0), Black: 10071#(and (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) 2 |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset|)) 0) (= (select (select |#race| |~#c~0.base|) (+ (* |fThread1of1ForFork0_~j~0#1| 8) |~#c~0.offset| 1)) 0)), 3070#true, 368#true, 428#true, 1823#true, 10081#true, 115#L1037-2true, 12#L1037-2true, Black: 3060#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0)), Black: 3064#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= (select (select |#race| |~#c~0.base|) (+ 2 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0) (= 0 (select (select |#race| |~#c~0.base|) (+ 3 |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))))), Black: 3052#(= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0), Black: 3056#(and (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|) 1)) 0) (= (select (select |#race| |~#c~0.base|) (+ |~#c~0.offset| (* 8 |fThread1of1ForFork1_~j~0#1|))) 0))]) [2024-11-08 16:17:43,602 INFO L294 olderBase$Statistics]: this new event has 3000 ancestors and is cut-off event [2024-11-08 16:17:43,602 INFO L297 olderBase$Statistics]: existing Event has 2972 ancestors and is cut-off event [2024-11-08 16:17:43,602 INFO L297 olderBase$Statistics]: existing Event has 2972 ancestors and is cut-off event [2024-11-08 16:17:43,602 INFO L297 olderBase$Statistics]: existing Event has 2972 ancestors and is cut-off event [2024-11-08 16:17:45,610 INFO L124 PetriNetUnfolderBase]: 415/6670 cut-off events. [2024-11-08 16:17:45,610 INFO L125 PetriNetUnfolderBase]: For 3593/3611 co-relation queries the response was YES. [2024-11-08 16:17:45,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8615 conditions, 6670 events. 415/6670 cut-off events. For 3593/3611 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 18710 event pairs, 100 based on Foata normal form. 30/6357 useless extension candidates. Maximal degree in co-relation 5849. Up to 259 conditions per place. [2024-11-08 16:17:45,660 INFO L140 encePairwiseOnDemand]: 370/376 looper letters, 62 selfloop transitions, 135 changer transitions 0/598 dead transitions. [2024-11-08 16:17:45,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 504 places, 598 transitions, 2840 flow [2024-11-08 16:17:45,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-08 16:17:45,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2024-11-08 16:17:45,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 16160 transitions. [2024-11-08 16:17:45,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9550827423167849 [2024-11-08 16:17:45,690 INFO L175 Difference]: Start difference. First operand has 460 places, 483 transitions, 1654 flow. Second operand 45 states and 16160 transitions. [2024-11-08 16:17:45,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 504 places, 598 transitions, 2840 flow [2024-11-08 16:17:45,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 504 places, 598 transitions, 2840 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 16:17:45,725 INFO L231 Difference]: Finished difference. Result has 513 places, 558 transitions, 2528 flow [2024-11-08 16:17:45,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=1654, PETRI_DIFFERENCE_MINUEND_PLACES=460, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=45, PETRI_FLOW=2528, PETRI_PLACES=513, PETRI_TRANSITIONS=558} [2024-11-08 16:17:45,727 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, 146 predicate places. [2024-11-08 16:17:45,727 INFO L471 AbstractCegarLoop]: Abstraction has has 513 places, 558 transitions, 2528 flow [2024-11-08 16:17:45,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 359.6470588235294) internal successors, (12228), 34 states have internal predecessors, (12228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:17:45,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:17:45,733 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:17:45,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 16:17:45,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-08 16:17:45,935 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:17:45,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:17:45,936 INFO L85 PathProgramCache]: Analyzing trace with hash 622130230, now seen corresponding path program 2 times [2024-11-08 16:17:45,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:17:45,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625258298] [2024-11-08 16:17:45,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:17:45,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:17:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:18:02,150 INFO L134 CoverageAnalysis]: Checked inductivity of 39677 backedges. 20532 proven. 9570 refuted. 0 times theorem prover too weak. 9575 trivial. 0 not checked. [2024-11-08 16:18:02,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:18:02,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625258298] [2024-11-08 16:18:02,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625258298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:18:02,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917063858] [2024-11-08 16:18:02,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:18:02,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:18:02,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:18:02,154 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:18:02,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:18:04,051 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:18:04,051 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:18:04,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 16:18:04,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:18:04,193 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 [2024-11-08 16:18:04,228 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 21 treesize of output 20 [2024-11-08 16:18:04,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:18:04,279 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 30 treesize of output 32 [2024-11-08 16:18:04,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:18:04,340 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 39 treesize of output 44 [2024-11-08 16:18:04,408 INFO L134 CoverageAnalysis]: Checked inductivity of 39677 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39677 trivial. 0 not checked. [2024-11-08 16:18:04,409 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:18:04,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917063858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:18:04,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:18:04,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [33] total 37 [2024-11-08 16:18:04,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856192846] [2024-11-08 16:18:04,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:18:04,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:18:04,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:18:04,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:18:04,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=302, Invalid=1030, Unknown=0, NotChecked=0, Total=1332 [2024-11-08 16:18:05,163 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 376 [2024-11-08 16:18:05,164 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 513 places, 558 transitions, 2528 flow. Second operand has 6 states, 6 states have (on average 321.5) internal successors, (1929), 6 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:18:05,164 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 16:18:05,164 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 376 [2024-11-08 16:18:05,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 16:18:16,163 INFO L124 PetriNetUnfolderBase]: 544/6954 cut-off events. [2024-11-08 16:18:16,163 INFO L125 PetriNetUnfolderBase]: For 2407/2513 co-relation queries the response was YES. [2024-11-08 16:18:16,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10902 conditions, 6954 events. 544/6954 cut-off events. For 2407/2513 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 22247 event pairs, 87 based on Foata normal form. 34/6671 useless extension candidates. Maximal degree in co-relation 7351. Up to 1847 conditions per place. [2024-11-08 16:18:16,205 INFO L140 encePairwiseOnDemand]: 365/376 looper letters, 108 selfloop transitions, 55 changer transitions 0/619 dead transitions. [2024-11-08 16:18:16,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 518 places, 619 transitions, 3180 flow [2024-11-08 16:18:16,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:18:16,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 16:18:16,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1978 transitions. [2024-11-08 16:18:16,209 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.87677304964539 [2024-11-08 16:18:16,210 INFO L175 Difference]: Start difference. First operand has 513 places, 558 transitions, 2528 flow. Second operand 6 states and 1978 transitions. [2024-11-08 16:18:16,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 518 places, 619 transitions, 3180 flow [2024-11-08 16:18:16,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 500 places, 619 transitions, 3072 flow, removed 0 selfloop flow, removed 18 redundant places. [2024-11-08 16:18:16,249 INFO L231 Difference]: Finished difference. Result has 505 places, 607 transitions, 2974 flow [2024-11-08 16:18:16,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=376, PETRI_DIFFERENCE_MINUEND_FLOW=2420, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2974, PETRI_PLACES=505, PETRI_TRANSITIONS=607} [2024-11-08 16:18:16,251 INFO L277 CegarLoopForPetriNet]: 367 programPoint places, 138 predicate places. [2024-11-08 16:18:16,251 INFO L471 AbstractCegarLoop]: Abstraction has has 505 places, 607 transitions, 2974 flow [2024-11-08 16:18:16,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 321.5) internal successors, (1929), 6 states have internal predecessors, (1929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:18:16,252 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 16:18:16,253 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:18:16,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 16:18:16,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b2cd4c9a-6a6c-4a5c-b8ba-ef5990320f7a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 16:18:16,456 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting fErr1ASSERT_VIOLATIONDATA_RACE === [fErr0ASSERT_VIOLATIONDATA_RACE, fErr1ASSERT_VIOLATIONDATA_RACE, fErr2ASSERT_VIOLATIONDATA_RACE, fErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2024-11-08 16:18:16,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:18:16,457 INFO L85 PathProgramCache]: Analyzing trace with hash 27329903, now seen corresponding path program 1 times [2024-11-08 16:18:16,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:18:16,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230362211] [2024-11-08 16:18:16,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:18:16,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:18:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat