./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:35,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:35,312 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 12:02:35,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:35,318 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:35,342 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:35,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:35,343 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:35,344 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:02:35,345 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:02:35,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:35,346 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:35,347 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:35,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:35,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:02:35,349 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:35,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:02:35,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:35,351 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:35,352 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:02:35,352 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:02:35,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:02:35,357 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 12:02:35,358 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:02:35,362 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:35,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:35,363 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:35,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:35,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:35,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:02:35,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:35,366 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:35,366 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:02:35,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:02:35,367 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:02:35,367 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:02:35,367 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:02:35,367 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:02:35,368 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:02:35,368 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:02:35,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:02:35,368 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_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af523f24b0126267447f5590b01302c6de6f439c37a01df1dbf66192a849a6d6 [2023-11-26 12:02:35,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:35,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:35,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:35,683 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:35,684 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:35,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2023-11-26 12:02:38,757 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:39,048 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:39,048 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/sv-benchmarks/c/weaver/bench-exp2x9.wvr.c [2023-11-26 12:02:39,059 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/data/8e7b36e86/6f48079b197248cea48d6de380fec28b/FLAG5d744f41f [2023-11-26 12:02:39,086 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/data/8e7b36e86/6f48079b197248cea48d6de380fec28b [2023-11-26 12:02:39,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:39,094 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:39,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:39,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:39,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:39,106 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ef047c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39, skipping insertion in model container [2023-11-26 12:02:39,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,147 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:39,414 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:39,429 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:39,482 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:39,502 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:39,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39 WrapperNode [2023-11-26 12:02:39,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:39,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:39,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:39,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:39,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,525 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,556 INFO L138 Inliner]: procedures = 20, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 173 [2023-11-26 12:02:39,557 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:39,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:39,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:39,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:39,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,608 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:39,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:39,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:39,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:39,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (1/1) ... [2023-11-26 12:02:39,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:02:39,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:39,654 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:39,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065223cd-b502-40bc-acec-4687fc4e2628/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:39,705 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 12:02:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 12:02:39,706 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 12:02:39,706 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 12:02:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 12:02:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 12:02:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-26 12:02:39,707 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-26 12:02:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:02:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:02:39,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:02:39,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:39,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:02:39,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:02:39,712 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:02:39,838 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:39,840 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:40,674 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:40,709 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:40,710 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-26 12:02:40,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:40 BoogieIcfgContainer [2023-11-26 12:02:40,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:40,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:02:40,715 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:02:40,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:02:40,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:02:39" (1/3) ... [2023-11-26 12:02:40,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a90ed34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:40, skipping insertion in model container [2023-11-26 12:02:40,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:39" (2/3) ... [2023-11-26 12:02:40,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a90ed34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:02:40, skipping insertion in model container [2023-11-26 12:02:40,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:40" (3/3) ... [2023-11-26 12:02:40,724 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2023-11-26 12:02:40,733 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:02:40,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:02:40,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 111 error locations. [2023-11-26 12:02:40,746 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:02:40,915 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-26 12:02:40,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 586 places, 587 transitions, 1202 flow [2023-11-26 12:02:41,463 INFO L124 PetriNetUnfolderBase]: 14/583 cut-off events. [2023-11-26 12:02:41,463 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 12:02:41,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 600 conditions, 583 events. 14/583 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1923 event pairs, 0 based on Foata normal form. 0/458 useless extension candidates. Maximal degree in co-relation 423. Up to 2 conditions per place. [2023-11-26 12:02:41,496 INFO L82 GeneralOperation]: Start removeDead. Operand has 586 places, 587 transitions, 1202 flow [2023-11-26 12:02:41,514 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 556 places, 555 transitions, 1134 flow [2023-11-26 12:02:41,524 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:02:41,532 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4186b1d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:02:41,532 INFO L358 AbstractCegarLoop]: Starting to check reachability of 207 error locations. [2023-11-26 12:02:41,537 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:02:41,537 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2023-11-26 12:02:41,537 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:02:41,537 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:41,538 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:41,538 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:41,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:41,544 INFO L85 PathProgramCache]: Analyzing trace with hash 2134399332, now seen corresponding path program 1 times [2023-11-26 12:02:41,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:41,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571510286] [2023-11-26 12:02:41,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:41,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:41,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:41,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:41,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571510286] [2023-11-26 12:02:41,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571510286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:41,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:41,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:41,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496126106] [2023-11-26 12:02:41,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:41,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:41,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:41,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:41,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:42,108 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 540 out of 587 [2023-11-26 12:02:42,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 556 places, 555 transitions, 1134 flow. Second operand has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:42,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:42,116 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 540 of 587 [2023-11-26 12:02:42,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:42,594 INFO L124 PetriNetUnfolderBase]: 76/900 cut-off events. [2023-11-26 12:02:42,594 INFO L125 PetriNetUnfolderBase]: For 82/84 co-relation queries the response was YES. [2023-11-26 12:02:42,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1223 conditions, 900 events. 76/900 cut-off events. For 82/84 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4989 event pairs, 66 based on Foata normal form. 145/853 useless extension candidates. Maximal degree in co-relation 1056. Up to 172 conditions per place. [2023-11-26 12:02:42,639 INFO L140 encePairwiseOnDemand]: 579/587 looper letters, 36 selfloop transitions, 2 changer transitions 1/549 dead transitions. [2023-11-26 12:02:42,640 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 557 places, 549 transitions, 1198 flow [2023-11-26 12:02:42,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:42,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:42,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1664 transitions. [2023-11-26 12:02:42,666 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9449176604202157 [2023-11-26 12:02:42,667 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1664 transitions. [2023-11-26 12:02:42,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1664 transitions. [2023-11-26 12:02:42,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:42,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1664 transitions. [2023-11-26 12:02:42,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 554.6666666666666) internal successors, (1664), 3 states have internal predecessors, (1664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:42,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:42,698 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:42,700 INFO L175 Difference]: Start difference. First operand has 556 places, 555 transitions, 1134 flow. Second operand 3 states and 1664 transitions. [2023-11-26 12:02:42,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 557 places, 549 transitions, 1198 flow [2023-11-26 12:02:42,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 549 transitions, 1182 flow, removed 0 selfloop flow, removed 8 redundant places. [2023-11-26 12:02:42,730 INFO L231 Difference]: Finished difference. Result has 549 places, 548 transitions, 1108 flow [2023-11-26 12:02:42,733 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1106, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1108, PETRI_PLACES=549, PETRI_TRANSITIONS=548} [2023-11-26 12:02:42,737 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -7 predicate places. [2023-11-26 12:02:42,738 INFO L495 AbstractCegarLoop]: Abstraction has has 549 places, 548 transitions, 1108 flow [2023-11-26 12:02:42,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:42,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:42,740 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:42,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:02:42,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:42,742 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:42,743 INFO L85 PathProgramCache]: Analyzing trace with hash -570196397, now seen corresponding path program 1 times [2023-11-26 12:02:42,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:42,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451734836] [2023-11-26 12:02:42,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:42,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:42,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:42,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:42,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451734836] [2023-11-26 12:02:42,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451734836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:42,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:42,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:42,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973290385] [2023-11-26 12:02:42,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:42,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:42,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:42,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:42,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:43,046 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 541 out of 587 [2023-11-26 12:02:43,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 548 transitions, 1108 flow. Second operand has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:43,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:43,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 541 of 587 [2023-11-26 12:02:43,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:43,574 INFO L124 PetriNetUnfolderBase]: 76/898 cut-off events. [2023-11-26 12:02:43,574 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-26 12:02:43,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1123 conditions, 898 events. 76/898 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5328 event pairs, 66 based on Foata normal form. 0/707 useless extension candidates. Maximal degree in co-relation 1093. Up to 171 conditions per place. [2023-11-26 12:02:43,610 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 35 selfloop transitions, 2 changer transitions 0/547 dead transitions. [2023-11-26 12:02:43,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 547 transitions, 1180 flow [2023-11-26 12:02:43,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:43,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:43,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1661 transitions. [2023-11-26 12:02:43,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9432140829074389 [2023-11-26 12:02:43,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1661 transitions. [2023-11-26 12:02:43,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1661 transitions. [2023-11-26 12:02:43,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:43,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1661 transitions. [2023-11-26 12:02:43,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 553.6666666666666) internal successors, (1661), 3 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:43,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:43,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:43,634 INFO L175 Difference]: Start difference. First operand has 549 places, 548 transitions, 1108 flow. Second operand 3 states and 1661 transitions. [2023-11-26 12:02:43,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 547 transitions, 1180 flow [2023-11-26 12:02:43,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 547 places, 547 transitions, 1176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:43,648 INFO L231 Difference]: Finished difference. Result has 547 places, 547 transitions, 1106 flow [2023-11-26 12:02:43,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=547, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1106, PETRI_PLACES=547, PETRI_TRANSITIONS=547} [2023-11-26 12:02:43,650 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -9 predicate places. [2023-11-26 12:02:43,651 INFO L495 AbstractCegarLoop]: Abstraction has has 547 places, 547 transitions, 1106 flow [2023-11-26 12:02:43,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:43,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:43,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:43,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:02:43,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:43,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:43,659 INFO L85 PathProgramCache]: Analyzing trace with hash 772372103, now seen corresponding path program 1 times [2023-11-26 12:02:43,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:43,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871197630] [2023-11-26 12:02:43,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:43,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:43,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:43,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:43,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871197630] [2023-11-26 12:02:43,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871197630] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:43,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:43,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:43,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34259751] [2023-11-26 12:02:43,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:43,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:43,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:43,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:43,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:43,936 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 540 out of 587 [2023-11-26 12:02:43,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 547 transitions, 1106 flow. Second operand has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:43,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:43,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 540 of 587 [2023-11-26 12:02:43,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:44,491 INFO L124 PetriNetUnfolderBase]: 76/897 cut-off events. [2023-11-26 12:02:44,491 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-26 12:02:44,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1101 conditions, 897 events. 76/897 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5396 event pairs, 66 based on Foata normal form. 0/706 useless extension candidates. Maximal degree in co-relation 1064. Up to 172 conditions per place. [2023-11-26 12:02:44,531 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/546 dead transitions. [2023-11-26 12:02:44,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 546 transitions, 1180 flow [2023-11-26 12:02:44,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:44,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:44,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1659 transitions. [2023-11-26 12:02:44,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9420783645655877 [2023-11-26 12:02:44,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1659 transitions. [2023-11-26 12:02:44,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1659 transitions. [2023-11-26 12:02:44,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:44,539 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1659 transitions. [2023-11-26 12:02:44,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 553.0) internal successors, (1659), 3 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:44,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:44,552 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:44,553 INFO L175 Difference]: Start difference. First operand has 547 places, 547 transitions, 1106 flow. Second operand 3 states and 1659 transitions. [2023-11-26 12:02:44,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 546 transitions, 1180 flow [2023-11-26 12:02:44,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 546 transitions, 1176 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:44,567 INFO L231 Difference]: Finished difference. Result has 546 places, 546 transitions, 1104 flow [2023-11-26 12:02:44,568 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1100, PETRI_DIFFERENCE_MINUEND_PLACES=544, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=546, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=544, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1104, PETRI_PLACES=546, PETRI_TRANSITIONS=546} [2023-11-26 12:02:44,571 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -10 predicate places. [2023-11-26 12:02:44,571 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 546 transitions, 1104 flow [2023-11-26 12:02:44,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 541.3333333333334) internal successors, (1624), 3 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:44,573 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:44,573 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:44,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:02:44,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:44,574 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:44,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1297497789, now seen corresponding path program 1 times [2023-11-26 12:02:44,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:44,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703963572] [2023-11-26 12:02:44,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:44,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:44,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:44,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703963572] [2023-11-26 12:02:44,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703963572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:44,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:44,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:44,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998292665] [2023-11-26 12:02:44,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:44,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:44,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:44,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:44,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:44,797 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 541 out of 587 [2023-11-26 12:02:44,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 546 transitions, 1104 flow. Second operand has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:44,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:44,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 541 of 587 [2023-11-26 12:02:44,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:45,170 INFO L124 PetriNetUnfolderBase]: 76/896 cut-off events. [2023-11-26 12:02:45,170 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-11-26 12:02:45,184 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1077 conditions, 896 events. 76/896 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5337 event pairs, 66 based on Foata normal form. 0/705 useless extension candidates. Maximal degree in co-relation 1033. Up to 171 conditions per place. [2023-11-26 12:02:45,200 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 35 selfloop transitions, 2 changer transitions 0/545 dead transitions. [2023-11-26 12:02:45,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 547 places, 545 transitions, 1176 flow [2023-11-26 12:02:45,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:45,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:45,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1661 transitions. [2023-11-26 12:02:45,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9432140829074389 [2023-11-26 12:02:45,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1661 transitions. [2023-11-26 12:02:45,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1661 transitions. [2023-11-26 12:02:45,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:45,208 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1661 transitions. [2023-11-26 12:02:45,213 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 553.6666666666666) internal successors, (1661), 3 states have internal predecessors, (1661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:45,218 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:45,221 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:45,221 INFO L175 Difference]: Start difference. First operand has 546 places, 546 transitions, 1104 flow. Second operand 3 states and 1661 transitions. [2023-11-26 12:02:45,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 547 places, 545 transitions, 1176 flow [2023-11-26 12:02:45,226 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 545 transitions, 1172 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:45,235 INFO L231 Difference]: Finished difference. Result has 545 places, 545 transitions, 1102 flow [2023-11-26 12:02:45,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=543, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1102, PETRI_PLACES=545, PETRI_TRANSITIONS=545} [2023-11-26 12:02:45,237 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -11 predicate places. [2023-11-26 12:02:45,237 INFO L495 AbstractCegarLoop]: Abstraction has has 545 places, 545 transitions, 1102 flow [2023-11-26 12:02:45,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 542.3333333333334) internal successors, (1627), 3 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:45,239 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:45,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:45,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:02:45,239 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:45,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:45,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1038763546, now seen corresponding path program 1 times [2023-11-26 12:02:45,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:45,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088376082] [2023-11-26 12:02:45,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:45,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:45,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:45,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:45,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:45,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088376082] [2023-11-26 12:02:45,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088376082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:45,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:45,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:45,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973063887] [2023-11-26 12:02:45,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:45,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:45,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:45,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:45,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:45,317 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 587 [2023-11-26 12:02:45,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 545 places, 545 transitions, 1102 flow. Second operand has 3 states, 3 states have (on average 562.3333333333334) internal successors, (1687), 3 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:45,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:45,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 587 [2023-11-26 12:02:45,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:46,433 INFO L124 PetriNetUnfolderBase]: 102/3486 cut-off events. [2023-11-26 12:02:46,434 INFO L125 PetriNetUnfolderBase]: For 15/23 co-relation queries the response was YES. [2023-11-26 12:02:46,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3651 conditions, 3486 events. 102/3486 cut-off events. For 15/23 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 31363 event pairs, 51 based on Foata normal form. 0/2629 useless extension candidates. Maximal degree in co-relation 3600. Up to 144 conditions per place. [2023-11-26 12:02:46,522 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 15 selfloop transitions, 2 changer transitions 0/544 dead transitions. [2023-11-26 12:02:46,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 546 places, 544 transitions, 1134 flow [2023-11-26 12:02:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:46,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1701 transitions. [2023-11-26 12:02:46,528 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9659284497444633 [2023-11-26 12:02:46,528 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1701 transitions. [2023-11-26 12:02:46,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1701 transitions. [2023-11-26 12:02:46,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:46,530 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1701 transitions. [2023-11-26 12:02:46,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 567.0) internal successors, (1701), 3 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:46,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:46,543 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:46,544 INFO L175 Difference]: Start difference. First operand has 545 places, 545 transitions, 1102 flow. Second operand 3 states and 1701 transitions. [2023-11-26 12:02:46,544 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 546 places, 544 transitions, 1134 flow [2023-11-26 12:02:46,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 544 transitions, 1130 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:46,557 INFO L231 Difference]: Finished difference. Result has 544 places, 544 transitions, 1100 flow [2023-11-26 12:02:46,558 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=544, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=542, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1100, PETRI_PLACES=544, PETRI_TRANSITIONS=544} [2023-11-26 12:02:46,559 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -12 predicate places. [2023-11-26 12:02:46,559 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 544 transitions, 1100 flow [2023-11-26 12:02:46,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.3333333333334) internal successors, (1687), 3 states have internal predecessors, (1687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:46,561 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:46,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:46,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:02:46,562 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:46,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:46,562 INFO L85 PathProgramCache]: Analyzing trace with hash 379827550, now seen corresponding path program 1 times [2023-11-26 12:02:46,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:46,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137755582] [2023-11-26 12:02:46,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:46,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:46,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:46,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:46,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137755582] [2023-11-26 12:02:46,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137755582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:46,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:46,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:46,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163640624] [2023-11-26 12:02:46,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:46,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:46,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:46,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:46,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:46,714 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 587 [2023-11-26 12:02:46,717 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 544 transitions, 1100 flow. Second operand has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:46,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:46,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 587 [2023-11-26 12:02:46,717 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:47,223 INFO L124 PetriNetUnfolderBase]: 121/878 cut-off events. [2023-11-26 12:02:47,224 INFO L125 PetriNetUnfolderBase]: For 4/8 co-relation queries the response was YES. [2023-11-26 12:02:47,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 878 events. 121/878 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5173 event pairs, 90 based on Foata normal form. 0/751 useless extension candidates. Maximal degree in co-relation 1218. Up to 228 conditions per place. [2023-11-26 12:02:47,258 INFO L140 encePairwiseOnDemand]: 554/587 looper letters, 41 selfloop transitions, 15 changer transitions 0/530 dead transitions. [2023-11-26 12:02:47,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 528 places, 530 transitions, 1187 flow [2023-11-26 12:02:47,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:47,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:47,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1604 transitions. [2023-11-26 12:02:47,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9108461101646792 [2023-11-26 12:02:47,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1604 transitions. [2023-11-26 12:02:47,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1604 transitions. [2023-11-26 12:02:47,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:47,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1604 transitions. [2023-11-26 12:02:47,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 534.6666666666666) internal successors, (1604), 3 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,282 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,282 INFO L175 Difference]: Start difference. First operand has 544 places, 544 transitions, 1100 flow. Second operand 3 states and 1604 transitions. [2023-11-26 12:02:47,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 528 places, 530 transitions, 1187 flow [2023-11-26 12:02:47,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 526 places, 530 transitions, 1183 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:02:47,299 INFO L231 Difference]: Finished difference. Result has 527 places, 527 transitions, 1109 flow [2023-11-26 12:02:47,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=524, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=511, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1109, PETRI_PLACES=527, PETRI_TRANSITIONS=527} [2023-11-26 12:02:47,301 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -29 predicate places. [2023-11-26 12:02:47,301 INFO L495 AbstractCegarLoop]: Abstraction has has 527 places, 527 transitions, 1109 flow [2023-11-26 12:02:47,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:47,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:47,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:02:47,304 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:47,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:47,304 INFO L85 PathProgramCache]: Analyzing trace with hash -57904542, now seen corresponding path program 1 times [2023-11-26 12:02:47,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:47,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251324698] [2023-11-26 12:02:47,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:47,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:47,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:47,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251324698] [2023-11-26 12:02:47,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251324698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:47,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:47,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:47,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938490875] [2023-11-26 12:02:47,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:47,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:47,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:47,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:47,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:47,461 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 587 [2023-11-26 12:02:47,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 527 places, 527 transitions, 1109 flow. Second operand has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:47,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 587 [2023-11-26 12:02:47,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:47,920 INFO L124 PetriNetUnfolderBase]: 121/862 cut-off events. [2023-11-26 12:02:47,920 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-26 12:02:47,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1243 conditions, 862 events. 121/862 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 5321 event pairs, 90 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 1098. Up to 226 conditions per place. [2023-11-26 12:02:47,952 INFO L140 encePairwiseOnDemand]: 555/587 looper letters, 39 selfloop transitions, 15 changer transitions 0/514 dead transitions. [2023-11-26 12:02:47,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 514 transitions, 1194 flow [2023-11-26 12:02:47,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:47,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:47,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1610 transitions. [2023-11-26 12:02:47,958 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9142532651902329 [2023-11-26 12:02:47,958 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1610 transitions. [2023-11-26 12:02:47,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1610 transitions. [2023-11-26 12:02:47,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:47,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1610 transitions. [2023-11-26 12:02:47,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 536.6666666666666) internal successors, (1610), 3 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,971 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,971 INFO L175 Difference]: Start difference. First operand has 527 places, 527 transitions, 1109 flow. Second operand 3 states and 1610 transitions. [2023-11-26 12:02:47,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 514 transitions, 1194 flow [2023-11-26 12:02:47,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 511 places, 514 transitions, 1179 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:02:47,984 INFO L231 Difference]: Finished difference. Result has 512 places, 511 transitions, 1109 flow [2023-11-26 12:02:47,985 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1060, PETRI_DIFFERENCE_MINUEND_PLACES=509, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1109, PETRI_PLACES=512, PETRI_TRANSITIONS=511} [2023-11-26 12:02:47,986 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -44 predicate places. [2023-11-26 12:02:47,986 INFO L495 AbstractCegarLoop]: Abstraction has has 512 places, 511 transitions, 1109 flow [2023-11-26 12:02:47,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:47,988 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:47,988 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:47,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:02:47,988 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:47,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:47,989 INFO L85 PathProgramCache]: Analyzing trace with hash 117963085, now seen corresponding path program 1 times [2023-11-26 12:02:47,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:47,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054528802] [2023-11-26 12:02:47,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:47,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:48,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:48,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:48,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054528802] [2023-11-26 12:02:48,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054528802] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:48,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:48,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:48,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205429041] [2023-11-26 12:02:48,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:48,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:48,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:48,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:48,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:48,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 510 out of 587 [2023-11-26 12:02:48,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 512 places, 511 transitions, 1109 flow. Second operand has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:48,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:48,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 510 of 587 [2023-11-26 12:02:48,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:48,796 INFO L124 PetriNetUnfolderBase]: 129/1358 cut-off events. [2023-11-26 12:02:48,796 INFO L125 PetriNetUnfolderBase]: For 94/98 co-relation queries the response was YES. [2023-11-26 12:02:48,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1772 conditions, 1358 events. 129/1358 cut-off events. For 94/98 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9356 event pairs, 51 based on Foata normal form. 0/1171 useless extension candidates. Maximal degree in co-relation 1537. Up to 232 conditions per place. [2023-11-26 12:02:48,840 INFO L140 encePairwiseOnDemand]: 553/587 looper letters, 44 selfloop transitions, 16 changer transitions 0/501 dead transitions. [2023-11-26 12:02:48,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 496 places, 501 transitions, 1215 flow [2023-11-26 12:02:48,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:48,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:48,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1608 transitions. [2023-11-26 12:02:48,845 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9131175468483816 [2023-11-26 12:02:48,845 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1608 transitions. [2023-11-26 12:02:48,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1608 transitions. [2023-11-26 12:02:48,847 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:48,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1608 transitions. [2023-11-26 12:02:48,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 536.0) internal successors, (1608), 3 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:48,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:48,857 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:48,857 INFO L175 Difference]: Start difference. First operand has 512 places, 511 transitions, 1109 flow. Second operand 3 states and 1608 transitions. [2023-11-26 12:02:48,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 496 places, 501 transitions, 1215 flow [2023-11-26 12:02:48,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 495 places, 501 transitions, 1200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:02:48,871 INFO L231 Difference]: Finished difference. Result has 496 places, 495 transitions, 1114 flow [2023-11-26 12:02:48,872 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1058, PETRI_DIFFERENCE_MINUEND_PLACES=493, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1114, PETRI_PLACES=496, PETRI_TRANSITIONS=495} [2023-11-26 12:02:48,873 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -60 predicate places. [2023-11-26 12:02:48,873 INFO L495 AbstractCegarLoop]: Abstraction has has 496 places, 495 transitions, 1114 flow [2023-11-26 12:02:48,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 511.0) internal successors, (1533), 3 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:48,874 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:48,874 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:48,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:02:48,875 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:48,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:48,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1693413895, now seen corresponding path program 1 times [2023-11-26 12:02:48,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:48,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756260152] [2023-11-26 12:02:48,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:48,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:48,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:48,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:48,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756260152] [2023-11-26 12:02:48,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756260152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:48,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:48,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:02:48,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943144738] [2023-11-26 12:02:48,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:48,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:02:48,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:48,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:02:48,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:02:48,968 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 560 out of 587 [2023-11-26 12:02:48,970 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 496 places, 495 transitions, 1114 flow. Second operand has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:48,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:48,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 560 of 587 [2023-11-26 12:02:48,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:49,319 INFO L124 PetriNetUnfolderBase]: 12/846 cut-off events. [2023-11-26 12:02:49,320 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-26 12:02:49,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 846 events. 12/846 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 4003 event pairs, 0 based on Foata normal form. 0/740 useless extension candidates. Maximal degree in co-relation 687. Up to 26 conditions per place. [2023-11-26 12:02:49,335 INFO L140 encePairwiseOnDemand]: 581/587 looper letters, 19 selfloop transitions, 5 changer transitions 0/500 dead transitions. [2023-11-26 12:02:49,335 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 500 places, 500 transitions, 1172 flow [2023-11-26 12:02:49,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:02:49,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 12:02:49,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2825 transitions. [2023-11-26 12:02:49,344 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9625212947189097 [2023-11-26 12:02:49,344 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2825 transitions. [2023-11-26 12:02:49,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2825 transitions. [2023-11-26 12:02:49,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:49,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2825 transitions. [2023-11-26 12:02:49,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 565.0) internal successors, (2825), 5 states have internal predecessors, (2825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:49,361 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 587.0) internal successors, (3522), 6 states have internal predecessors, (3522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:49,362 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 587.0) internal successors, (3522), 6 states have internal predecessors, (3522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:49,362 INFO L175 Difference]: Start difference. First operand has 496 places, 495 transitions, 1114 flow. Second operand 5 states and 2825 transitions. [2023-11-26 12:02:49,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 500 places, 500 transitions, 1172 flow [2023-11-26 12:02:49,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 499 places, 500 transitions, 1156 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:02:49,376 INFO L231 Difference]: Finished difference. Result has 503 places, 499 transitions, 1136 flow [2023-11-26 12:02:49,377 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1098, PETRI_DIFFERENCE_MINUEND_PLACES=495, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=490, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1136, PETRI_PLACES=503, PETRI_TRANSITIONS=499} [2023-11-26 12:02:49,378 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -53 predicate places. [2023-11-26 12:02:49,378 INFO L495 AbstractCegarLoop]: Abstraction has has 503 places, 499 transitions, 1136 flow [2023-11-26 12:02:49,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 561.25) internal successors, (2245), 4 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:49,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:49,380 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:49,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:02:49,380 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:49,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:49,380 INFO L85 PathProgramCache]: Analyzing trace with hash 563466835, now seen corresponding path program 1 times [2023-11-26 12:02:49,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:49,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735820864] [2023-11-26 12:02:49,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:49,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:49,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:49,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:49,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735820864] [2023-11-26 12:02:49,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735820864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:49,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:49,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:49,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302991068] [2023-11-26 12:02:49,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:49,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:49,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:49,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:49,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:49,551 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 513 out of 587 [2023-11-26 12:02:49,552 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 503 places, 499 transitions, 1136 flow. Second operand has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:49,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:49,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 513 of 587 [2023-11-26 12:02:49,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:50,364 INFO L124 PetriNetUnfolderBase]: 208/1851 cut-off events. [2023-11-26 12:02:50,364 INFO L125 PetriNetUnfolderBase]: For 198/202 co-relation queries the response was YES. [2023-11-26 12:02:50,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2497 conditions, 1851 events. 208/1851 cut-off events. For 198/202 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 14364 event pairs, 91 based on Foata normal form. 1/1662 useless extension candidates. Maximal degree in co-relation 1996. Up to 380 conditions per place. [2023-11-26 12:02:50,408 INFO L140 encePairwiseOnDemand]: 555/587 looper letters, 40 selfloop transitions, 15 changer transitions 11/490 dead transitions. [2023-11-26 12:02:50,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 490 transitions, 1239 flow [2023-11-26 12:02:50,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:50,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:50,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1613 transitions. [2023-11-26 12:02:50,415 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9159568427030097 [2023-11-26 12:02:50,415 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1613 transitions. [2023-11-26 12:02:50,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1613 transitions. [2023-11-26 12:02:50,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:50,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1613 transitions. [2023-11-26 12:02:50,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 537.6666666666666) internal successors, (1613), 3 states have internal predecessors, (1613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:50,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:50,428 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:50,429 INFO L175 Difference]: Start difference. First operand has 503 places, 499 transitions, 1136 flow. Second operand 3 states and 1613 transitions. [2023-11-26 12:02:50,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 490 transitions, 1239 flow [2023-11-26 12:02:50,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 488 places, 490 transitions, 1239 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:02:50,445 INFO L231 Difference]: Finished difference. Result has 489 places, 472 transitions, 1128 flow [2023-11-26 12:02:50,447 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1102, PETRI_DIFFERENCE_MINUEND_PLACES=486, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=482, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=489, PETRI_TRANSITIONS=472} [2023-11-26 12:02:50,448 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -67 predicate places. [2023-11-26 12:02:50,449 INFO L495 AbstractCegarLoop]: Abstraction has has 489 places, 472 transitions, 1128 flow [2023-11-26 12:02:50,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 514.0) internal successors, (1542), 3 states have internal predecessors, (1542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:50,450 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:50,450 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:50,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:02:50,450 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:50,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:50,451 INFO L85 PathProgramCache]: Analyzing trace with hash 471700510, now seen corresponding path program 1 times [2023-11-26 12:02:50,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:50,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978264842] [2023-11-26 12:02:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:50,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:50,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:50,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:50,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:50,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978264842] [2023-11-26 12:02:50,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978264842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:50,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:50,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:50,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459029491] [2023-11-26 12:02:50,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:50,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:50,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:50,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:50,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:50,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 559 out of 587 [2023-11-26 12:02:50,571 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 489 places, 472 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 560.3333333333334) internal successors, (1681), 3 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:50,571 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:50,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 559 of 587 [2023-11-26 12:02:50,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:54,407 INFO L124 PetriNetUnfolderBase]: 746/14537 cut-off events. [2023-11-26 12:02:54,407 INFO L125 PetriNetUnfolderBase]: For 439/471 co-relation queries the response was YES. [2023-11-26 12:02:54,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18525 conditions, 14537 events. 746/14537 cut-off events. For 439/471 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 189349 event pairs, 276 based on Foata normal form. 3/12991 useless extension candidates. Maximal degree in co-relation 14079. Up to 1027 conditions per place. [2023-11-26 12:02:54,805 INFO L140 encePairwiseOnDemand]: 579/587 looper letters, 19 selfloop transitions, 4 changer transitions 0/475 dead transitions. [2023-11-26 12:02:54,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 475 transitions, 1183 flow [2023-11-26 12:02:54,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:54,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:54,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1704 transitions. [2023-11-26 12:02:54,812 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9676320272572402 [2023-11-26 12:02:54,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1704 transitions. [2023-11-26 12:02:54,812 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1704 transitions. [2023-11-26 12:02:54,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:54,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1704 transitions. [2023-11-26 12:02:54,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 568.0) internal successors, (1704), 3 states have internal predecessors, (1704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:54,823 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:54,824 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:54,825 INFO L175 Difference]: Start difference. First operand has 489 places, 472 transitions, 1128 flow. Second operand 3 states and 1704 transitions. [2023-11-26 12:02:54,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 475 transitions, 1183 flow [2023-11-26 12:02:54,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 475 transitions, 1168 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:02:54,850 INFO L231 Difference]: Finished difference. Result has 476 places, 472 transitions, 1133 flow [2023-11-26 12:02:54,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1105, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1133, PETRI_PLACES=476, PETRI_TRANSITIONS=472} [2023-11-26 12:02:54,852 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -80 predicate places. [2023-11-26 12:02:54,852 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 472 transitions, 1133 flow [2023-11-26 12:02:54,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 560.3333333333334) internal successors, (1681), 3 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:54,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:54,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:54,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:02:54,854 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:54,854 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:54,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1751667583, now seen corresponding path program 1 times [2023-11-26 12:02:54,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:54,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319156044] [2023-11-26 12:02:54,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:54,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:54,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:54,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:54,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319156044] [2023-11-26 12:02:54,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319156044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:54,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:54,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:54,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196425401] [2023-11-26 12:02:54,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:54,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:54,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:54,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:54,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:55,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-26 12:02:55,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 472 transitions, 1133 flow. Second operand has 3 states, 3 states have (on average 545.0) internal successors, (1635), 3 states have internal predecessors, (1635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:55,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:55,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-26 12:02:55,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:57,119 INFO L124 PetriNetUnfolderBase]: 365/4440 cut-off events. [2023-11-26 12:02:57,119 INFO L125 PetriNetUnfolderBase]: For 169/175 co-relation queries the response was YES. [2023-11-26 12:02:57,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6180 conditions, 4440 events. 365/4440 cut-off events. For 169/175 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 44070 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 4239. Up to 528 conditions per place. [2023-11-26 12:02:57,235 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/474 dead transitions. [2023-11-26 12:02:57,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 474 transitions, 1218 flow [2023-11-26 12:02:57,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:02:57,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:02:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-26 12:02:57,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-26 12:02:57,241 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-26 12:02:57,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-26 12:02:57,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:57,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-26 12:02:57,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:57,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:57,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:57,252 INFO L175 Difference]: Start difference. First operand has 476 places, 472 transitions, 1133 flow. Second operand 3 states and 1665 transitions. [2023-11-26 12:02:57,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 474 transitions, 1218 flow [2023-11-26 12:02:57,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 474 transitions, 1218 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:02:57,266 INFO L231 Difference]: Finished difference. Result has 477 places, 471 transitions, 1135 flow [2023-11-26 12:02:57,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1131, PETRI_DIFFERENCE_MINUEND_PLACES=475, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=471, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1135, PETRI_PLACES=477, PETRI_TRANSITIONS=471} [2023-11-26 12:02:57,270 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -79 predicate places. [2023-11-26 12:02:57,270 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 471 transitions, 1135 flow [2023-11-26 12:02:57,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 545.0) internal successors, (1635), 3 states have internal predecessors, (1635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:57,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:02:57,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:02:57,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:02:57,271 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:02:57,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:57,272 INFO L85 PathProgramCache]: Analyzing trace with hash 467621995, now seen corresponding path program 1 times [2023-11-26 12:02:57,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:57,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534873311] [2023-11-26 12:02:57,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:57,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:57,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:57,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:02:57,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534873311] [2023-11-26 12:02:57,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534873311] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:02:57,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:02:57,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:02:57,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252319328] [2023-11-26 12:02:57,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:02:57,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:02:57,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:02:57,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:02:57,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:02:57,470 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-26 12:02:57,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 471 transitions, 1135 flow. Second operand has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:57,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:02:57,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-26 12:02:57,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:02:59,920 INFO L124 PetriNetUnfolderBase]: 689/6161 cut-off events. [2023-11-26 12:02:59,920 INFO L125 PetriNetUnfolderBase]: For 586/589 co-relation queries the response was YES. [2023-11-26 12:02:59,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9023 conditions, 6161 events. 689/6161 cut-off events. For 586/589 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 67635 event pairs, 499 based on Foata normal form. 0/5569 useless extension candidates. Maximal degree in co-relation 8714. Up to 1234 conditions per place. [2023-11-26 12:03:00,049 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/473 dead transitions. [2023-11-26 12:03:00,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 473 transitions, 1218 flow [2023-11-26 12:03:00,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:00,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:00,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-26 12:03:00,056 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-26 12:03:00,056 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-26 12:03:00,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-26 12:03:00,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:00,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-26 12:03:00,062 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:00,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:00,067 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:00,067 INFO L175 Difference]: Start difference. First operand has 477 places, 471 transitions, 1135 flow. Second operand 3 states and 1667 transitions. [2023-11-26 12:03:00,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 473 transitions, 1218 flow [2023-11-26 12:03:00,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 473 transitions, 1214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:00,081 INFO L231 Difference]: Finished difference. Result has 476 places, 470 transitions, 1133 flow [2023-11-26 12:03:00,082 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1129, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=470, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1133, PETRI_PLACES=476, PETRI_TRANSITIONS=470} [2023-11-26 12:03:00,084 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -80 predicate places. [2023-11-26 12:03:00,084 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 470 transitions, 1133 flow [2023-11-26 12:03:00,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:00,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:00,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:00,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 12:03:00,088 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:00,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:00,089 INFO L85 PathProgramCache]: Analyzing trace with hash 206523210, now seen corresponding path program 1 times [2023-11-26 12:03:00,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:00,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944085319] [2023-11-26 12:03:00,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:00,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:00,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:00,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944085319] [2023-11-26 12:03:00,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944085319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:00,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:00,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:00,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56712458] [2023-11-26 12:03:00,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:00,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:00,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:00,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:00,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:00,517 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-26 12:03:00,519 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 470 transitions, 1133 flow. Second operand has 3 states, 3 states have (on average 546.0) internal successors, (1638), 3 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:00,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:00,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-26 12:03:00,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:02,008 INFO L124 PetriNetUnfolderBase]: 365/4416 cut-off events. [2023-11-26 12:03:02,008 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES. [2023-11-26 12:03:02,058 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6181 conditions, 4416 events. 365/4416 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 43835 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 5149. Up to 528 conditions per place. [2023-11-26 12:03:02,094 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/472 dead transitions. [2023-11-26 12:03:02,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 472 transitions, 1218 flow [2023-11-26 12:03:02,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-26 12:03:02,100 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-26 12:03:02,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-26 12:03:02,101 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-26 12:03:02,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:02,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-26 12:03:02,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:02,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:02,112 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:02,112 INFO L175 Difference]: Start difference. First operand has 476 places, 470 transitions, 1133 flow. Second operand 3 states and 1665 transitions. [2023-11-26 12:03:02,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 472 transitions, 1218 flow [2023-11-26 12:03:02,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 472 transitions, 1214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:02,125 INFO L231 Difference]: Finished difference. Result has 475 places, 469 transitions, 1131 flow [2023-11-26 12:03:02,127 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1127, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1131, PETRI_PLACES=475, PETRI_TRANSITIONS=469} [2023-11-26 12:03:02,127 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -81 predicate places. [2023-11-26 12:03:02,128 INFO L495 AbstractCegarLoop]: Abstraction has has 475 places, 469 transitions, 1131 flow [2023-11-26 12:03:02,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.0) internal successors, (1638), 3 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:02,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:02,129 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:02,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 12:03:02,129 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:02,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:02,130 INFO L85 PathProgramCache]: Analyzing trace with hash -490192753, now seen corresponding path program 1 times [2023-11-26 12:03:02,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:02,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259416187] [2023-11-26 12:03:02,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:02,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:02,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:02,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:02,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259416187] [2023-11-26 12:03:02,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259416187] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:02,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:02,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:02,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408934874] [2023-11-26 12:03:02,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:02,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:02,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:02,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:02,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:03,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 587 [2023-11-26 12:03:03,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 475 places, 469 transitions, 1131 flow. Second operand has 6 states, 6 states have (on average 563.8333333333334) internal successors, (3383), 6 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:03,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:03,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 587 [2023-11-26 12:03:03,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:03,855 INFO L124 PetriNetUnfolderBase]: 88/2701 cut-off events. [2023-11-26 12:03:03,855 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-26 12:03:03,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3341 conditions, 2701 events. 88/2701 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 22624 event pairs, 8 based on Foata normal form. 0/2427 useless extension candidates. Maximal degree in co-relation 3090. Up to 112 conditions per place. [2023-11-26 12:03:03,896 INFO L140 encePairwiseOnDemand]: 582/587 looper letters, 10 selfloop transitions, 4 changer transitions 0/468 dead transitions. [2023-11-26 12:03:03,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 468 transitions, 1157 flow [2023-11-26 12:03:03,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:03,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:03,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3387 transitions. [2023-11-26 12:03:03,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9616695059625213 [2023-11-26 12:03:03,911 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3387 transitions. [2023-11-26 12:03:03,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3387 transitions. [2023-11-26 12:03:03,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:03,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3387 transitions. [2023-11-26 12:03:03,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 564.5) internal successors, (3387), 6 states have internal predecessors, (3387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:03,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:03,936 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:03,937 INFO L175 Difference]: Start difference. First operand has 475 places, 469 transitions, 1131 flow. Second operand 6 states and 3387 transitions. [2023-11-26 12:03:03,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 468 transitions, 1157 flow [2023-11-26 12:03:03,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 477 places, 468 transitions, 1153 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:03,950 INFO L231 Difference]: Finished difference. Result has 477 places, 468 transitions, 1133 flow [2023-11-26 12:03:03,951 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1133, PETRI_PLACES=477, PETRI_TRANSITIONS=468} [2023-11-26 12:03:03,953 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -79 predicate places. [2023-11-26 12:03:03,953 INFO L495 AbstractCegarLoop]: Abstraction has has 477 places, 468 transitions, 1133 flow [2023-11-26 12:03:03,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 563.8333333333334) internal successors, (3383), 6 states have internal predecessors, (3383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:03,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:03,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:03,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 12:03:03,955 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:03,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:03,956 INFO L85 PathProgramCache]: Analyzing trace with hash -228441037, now seen corresponding path program 1 times [2023-11-26 12:03:03,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:03,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949303848] [2023-11-26 12:03:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:03,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:04,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:04,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:04,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949303848] [2023-11-26 12:03:04,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949303848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:04,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:04,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:04,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398335099] [2023-11-26 12:03:04,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:04,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:04,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:04,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:04,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:04,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-26 12:03:04,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 477 places, 468 transitions, 1133 flow. Second operand has 3 states, 3 states have (on average 545.3333333333334) internal successors, (1636), 3 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:04,131 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:04,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-26 12:03:04,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:05,735 INFO L124 PetriNetUnfolderBase]: 464/4571 cut-off events. [2023-11-26 12:03:05,735 INFO L125 PetriNetUnfolderBase]: For 481/490 co-relation queries the response was YES. [2023-11-26 12:03:05,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6582 conditions, 4571 events. 464/4571 cut-off events. For 481/490 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 46770 event pairs, 316 based on Foata normal form. 0/4139 useless extension candidates. Maximal degree in co-relation 4788. Up to 853 conditions per place. [2023-11-26 12:03:05,809 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 38 selfloop transitions, 2 changer transitions 0/470 dead transitions. [2023-11-26 12:03:05,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 470 transitions, 1220 flow [2023-11-26 12:03:05,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:05,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:05,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-26 12:03:05,816 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-26 12:03:05,816 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-26 12:03:05,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-26 12:03:05,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:05,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-26 12:03:05,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,830 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,830 INFO L175 Difference]: Start difference. First operand has 477 places, 468 transitions, 1133 flow. Second operand 3 states and 1665 transitions. [2023-11-26 12:03:05,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 470 transitions, 1220 flow [2023-11-26 12:03:05,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 474 places, 470 transitions, 1213 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 12:03:05,845 INFO L231 Difference]: Finished difference. Result has 474 places, 467 transitions, 1128 flow [2023-11-26 12:03:05,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=472, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=467, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=465, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1128, PETRI_PLACES=474, PETRI_TRANSITIONS=467} [2023-11-26 12:03:05,847 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -82 predicate places. [2023-11-26 12:03:05,847 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 467 transitions, 1128 flow [2023-11-26 12:03:05,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 545.3333333333334) internal successors, (1636), 3 states have internal predecessors, (1636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:05,848 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:05,848 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:05,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 12:03:05,849 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:05,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:05,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1243029442, now seen corresponding path program 1 times [2023-11-26 12:03:05,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:05,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559665856] [2023-11-26 12:03:05,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:05,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:05,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:05,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559665856] [2023-11-26 12:03:05,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559665856] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:05,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:05,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:05,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684169059] [2023-11-26 12:03:05,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:05,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:05,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:05,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:05,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:06,024 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-26 12:03:06,026 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 467 transitions, 1128 flow. Second operand has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:06,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:06,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-26 12:03:06,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:08,113 INFO L124 PetriNetUnfolderBase]: 704/6230 cut-off events. [2023-11-26 12:03:08,114 INFO L125 PetriNetUnfolderBase]: For 595/598 co-relation queries the response was YES. [2023-11-26 12:03:08,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9186 conditions, 6230 events. 704/6230 cut-off events. For 595/598 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 68623 event pairs, 499 based on Foata normal form. 0/5680 useless extension candidates. Maximal degree in co-relation 7990. Up to 1234 conditions per place. [2023-11-26 12:03:08,253 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/469 dead transitions. [2023-11-26 12:03:08,253 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 469 transitions, 1211 flow [2023-11-26 12:03:08,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:08,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:08,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-26 12:03:08,258 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-26 12:03:08,258 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-26 12:03:08,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-26 12:03:08,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:08,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-26 12:03:08,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,270 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,271 INFO L175 Difference]: Start difference. First operand has 474 places, 467 transitions, 1128 flow. Second operand 3 states and 1667 transitions. [2023-11-26 12:03:08,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 469 transitions, 1211 flow [2023-11-26 12:03:08,278 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 469 transitions, 1207 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:08,285 INFO L231 Difference]: Finished difference. Result has 473 places, 466 transitions, 1126 flow [2023-11-26 12:03:08,286 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1122, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=464, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1126, PETRI_PLACES=473, PETRI_TRANSITIONS=466} [2023-11-26 12:03:08,286 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -83 predicate places. [2023-11-26 12:03:08,287 INFO L495 AbstractCegarLoop]: Abstraction has has 473 places, 466 transitions, 1126 flow [2023-11-26 12:03:08,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:08,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:08,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 12:03:08,288 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:08,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:08,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1598153195, now seen corresponding path program 1 times [2023-11-26 12:03:08,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:08,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623913172] [2023-11-26 12:03:08,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:08,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:08,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:08,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:08,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623913172] [2023-11-26 12:03:08,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623913172] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:08,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:08,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:08,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327056487] [2023-11-26 12:03:08,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:08,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:08,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:08,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:08,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:08,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-26 12:03:08,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 473 places, 466 transitions, 1126 flow. Second operand has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:08,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:08,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-26 12:03:08,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:09,703 INFO L124 PetriNetUnfolderBase]: 365/4376 cut-off events. [2023-11-26 12:03:09,703 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES. [2023-11-26 12:03:09,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6144 conditions, 4376 events. 365/4376 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 43225 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 5256. Up to 528 conditions per place. [2023-11-26 12:03:09,782 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/468 dead transitions. [2023-11-26 12:03:09,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 474 places, 468 transitions, 1211 flow [2023-11-26 12:03:09,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:09,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:09,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-26 12:03:09,788 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-26 12:03:09,788 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-26 12:03:09,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-26 12:03:09,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:09,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-26 12:03:09,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,798 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,799 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,799 INFO L175 Difference]: Start difference. First operand has 473 places, 466 transitions, 1126 flow. Second operand 3 states and 1665 transitions. [2023-11-26 12:03:09,799 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 474 places, 468 transitions, 1211 flow [2023-11-26 12:03:09,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 468 transitions, 1207 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:09,814 INFO L231 Difference]: Finished difference. Result has 472 places, 465 transitions, 1124 flow [2023-11-26 12:03:09,815 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1120, PETRI_DIFFERENCE_MINUEND_PLACES=470, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=465, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=463, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1124, PETRI_PLACES=472, PETRI_TRANSITIONS=465} [2023-11-26 12:03:09,815 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -84 predicate places. [2023-11-26 12:03:09,815 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 465 transitions, 1124 flow [2023-11-26 12:03:09,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.0) internal successors, (1641), 3 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:09,816 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:09,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 12:03:09,817 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:09,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:09,817 INFO L85 PathProgramCache]: Analyzing trace with hash -2003421738, now seen corresponding path program 1 times [2023-11-26 12:03:09,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:09,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3615054] [2023-11-26 12:03:09,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:09,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:09,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:09,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3615054] [2023-11-26 12:03:09,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3615054] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:09,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:09,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:09,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171289607] [2023-11-26 12:03:09,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:09,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:09,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:09,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:09,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:09,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-26 12:03:09,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 465 transitions, 1124 flow. Second operand has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 3 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:09,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:09,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-26 12:03:09,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:11,156 INFO L124 PetriNetUnfolderBase]: 264/3598 cut-off events. [2023-11-26 12:03:11,156 INFO L125 PetriNetUnfolderBase]: For 342/347 co-relation queries the response was YES. [2023-11-26 12:03:11,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4887 conditions, 3598 events. 264/3598 cut-off events. For 342/347 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 33997 event pairs, 156 based on Foata normal form. 0/3271 useless extension candidates. Maximal degree in co-relation 4672. Up to 480 conditions per place. [2023-11-26 12:03:11,272 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/467 dead transitions. [2023-11-26 12:03:11,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 467 transitions, 1207 flow [2023-11-26 12:03:11,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:11,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-26 12:03:11,278 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-26 12:03:11,279 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-26 12:03:11,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-26 12:03:11,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:11,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-26 12:03:11,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:11,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:11,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:11,289 INFO L175 Difference]: Start difference. First operand has 472 places, 465 transitions, 1124 flow. Second operand 3 states and 1667 transitions. [2023-11-26 12:03:11,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 467 transitions, 1207 flow [2023-11-26 12:03:11,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 467 transitions, 1203 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:11,304 INFO L231 Difference]: Finished difference. Result has 471 places, 464 transitions, 1122 flow [2023-11-26 12:03:11,305 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1118, PETRI_DIFFERENCE_MINUEND_PLACES=469, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=462, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1122, PETRI_PLACES=471, PETRI_TRANSITIONS=464} [2023-11-26 12:03:11,306 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -85 predicate places. [2023-11-26 12:03:11,306 INFO L495 AbstractCegarLoop]: Abstraction has has 471 places, 464 transitions, 1122 flow [2023-11-26 12:03:11,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 3 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:11,307 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:11,307 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:11,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 12:03:11,307 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:11,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:11,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1670809046, now seen corresponding path program 1 times [2023-11-26 12:03:11,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:11,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955969918] [2023-11-26 12:03:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:11,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:11,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:11,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:11,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955969918] [2023-11-26 12:03:11,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955969918] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:11,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:11,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:11,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850489785] [2023-11-26 12:03:11,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:11,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:11,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:11,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:11,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:11,477 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-26 12:03:11,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 471 places, 464 transitions, 1122 flow. Second operand has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:11,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:11,480 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-26 12:03:11,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:12,940 INFO L124 PetriNetUnfolderBase]: 464/4543 cut-off events. [2023-11-26 12:03:12,940 INFO L125 PetriNetUnfolderBase]: For 488/497 co-relation queries the response was YES. [2023-11-26 12:03:13,026 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6563 conditions, 4543 events. 464/4543 cut-off events. For 488/497 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 46312 event pairs, 316 based on Foata normal form. 0/4155 useless extension candidates. Maximal degree in co-relation 5792. Up to 853 conditions per place. [2023-11-26 12:03:13,056 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 38 selfloop transitions, 2 changer transitions 0/466 dead transitions. [2023-11-26 12:03:13,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 466 transitions, 1209 flow [2023-11-26 12:03:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:13,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-26 12:03:13,062 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-26 12:03:13,062 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-26 12:03:13,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-26 12:03:13,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:13,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-26 12:03:13,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:13,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:13,070 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:13,071 INFO L175 Difference]: Start difference. First operand has 471 places, 464 transitions, 1122 flow. Second operand 3 states and 1665 transitions. [2023-11-26 12:03:13,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 466 transitions, 1209 flow [2023-11-26 12:03:13,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 470 places, 466 transitions, 1205 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:13,084 INFO L231 Difference]: Finished difference. Result has 470 places, 463 transitions, 1120 flow [2023-11-26 12:03:13,085 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1116, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=463, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=461, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1120, PETRI_PLACES=470, PETRI_TRANSITIONS=463} [2023-11-26 12:03:13,086 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -86 predicate places. [2023-11-26 12:03:13,086 INFO L495 AbstractCegarLoop]: Abstraction has has 470 places, 463 transitions, 1120 flow [2023-11-26 12:03:13,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:13,087 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:13,087 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:13,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 12:03:13,087 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:13,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:13,088 INFO L85 PathProgramCache]: Analyzing trace with hash -890867753, now seen corresponding path program 1 times [2023-11-26 12:03:13,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:13,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255532896] [2023-11-26 12:03:13,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:13,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:13,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:13,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:13,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255532896] [2023-11-26 12:03:13,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255532896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:13,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:13,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:13,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680596202] [2023-11-26 12:03:13,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:13,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:13,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:13,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:13,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:13,249 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-26 12:03:13,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 463 transitions, 1120 flow. Second operand has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:13,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:13,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-26 12:03:13,251 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:15,652 INFO L124 PetriNetUnfolderBase]: 716/6519 cut-off events. [2023-11-26 12:03:15,652 INFO L125 PetriNetUnfolderBase]: For 595/598 co-relation queries the response was YES. [2023-11-26 12:03:15,756 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9535 conditions, 6519 events. 716/6519 cut-off events. For 595/598 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 72173 event pairs, 499 based on Foata normal form. 0/5995 useless extension candidates. Maximal degree in co-relation 8501. Up to 1234 conditions per place. [2023-11-26 12:03:15,800 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/465 dead transitions. [2023-11-26 12:03:15,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 465 transitions, 1203 flow [2023-11-26 12:03:15,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:15,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:15,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-26 12:03:15,806 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-26 12:03:15,806 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-26 12:03:15,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-26 12:03:15,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:15,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-26 12:03:15,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:15,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:15,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:15,816 INFO L175 Difference]: Start difference. First operand has 470 places, 463 transitions, 1120 flow. Second operand 3 states and 1667 transitions. [2023-11-26 12:03:15,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 465 transitions, 1203 flow [2023-11-26 12:03:15,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 465 transitions, 1199 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:15,833 INFO L231 Difference]: Finished difference. Result has 469 places, 462 transitions, 1118 flow [2023-11-26 12:03:15,833 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=467, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=460, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1118, PETRI_PLACES=469, PETRI_TRANSITIONS=462} [2023-11-26 12:03:15,834 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -87 predicate places. [2023-11-26 12:03:15,834 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 462 transitions, 1118 flow [2023-11-26 12:03:15,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 3 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:15,835 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:15,835 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:15,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 12:03:15,836 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:15,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:15,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1220487798, now seen corresponding path program 1 times [2023-11-26 12:03:15,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:15,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382390789] [2023-11-26 12:03:15,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:15,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:15,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:15,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382390789] [2023-11-26 12:03:15,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382390789] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:15,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:15,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:15,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474654716] [2023-11-26 12:03:15,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:15,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:15,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:15,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:15,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:16,010 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-26 12:03:16,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 462 transitions, 1118 flow. Second operand has 3 states, 3 states have (on average 548.0) internal successors, (1644), 3 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:16,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:16,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-26 12:03:16,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:17,163 INFO L124 PetriNetUnfolderBase]: 365/4328 cut-off events. [2023-11-26 12:03:17,163 INFO L125 PetriNetUnfolderBase]: For 181/187 co-relation queries the response was YES. [2023-11-26 12:03:17,213 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6096 conditions, 4328 events. 365/4328 cut-off events. For 181/187 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 42586 event pairs, 226 based on Foata normal form. 0/4000 useless extension candidates. Maximal degree in co-relation 5352. Up to 528 conditions per place. [2023-11-26 12:03:17,237 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 37 selfloop transitions, 2 changer transitions 0/464 dead transitions. [2023-11-26 12:03:17,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 464 transitions, 1203 flow [2023-11-26 12:03:17,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:17,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:17,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-26 12:03:17,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-26 12:03:17,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-26 12:03:17,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-26 12:03:17,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:17,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-26 12:03:17,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:17,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:17,252 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:17,252 INFO L175 Difference]: Start difference. First operand has 469 places, 462 transitions, 1118 flow. Second operand 3 states and 1665 transitions. [2023-11-26 12:03:17,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 464 transitions, 1203 flow [2023-11-26 12:03:17,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 464 transitions, 1199 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:17,269 INFO L231 Difference]: Finished difference. Result has 468 places, 461 transitions, 1116 flow [2023-11-26 12:03:17,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1112, PETRI_DIFFERENCE_MINUEND_PLACES=466, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=461, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1116, PETRI_PLACES=468, PETRI_TRANSITIONS=461} [2023-11-26 12:03:17,270 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -88 predicate places. [2023-11-26 12:03:17,270 INFO L495 AbstractCegarLoop]: Abstraction has has 468 places, 461 transitions, 1116 flow [2023-11-26 12:03:17,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 548.0) internal successors, (1644), 3 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:17,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:17,271 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:17,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 12:03:17,271 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread4Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:17,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:17,272 INFO L85 PathProgramCache]: Analyzing trace with hash -759395341, now seen corresponding path program 1 times [2023-11-26 12:03:17,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:17,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863226988] [2023-11-26 12:03:17,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:17,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:17,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:17,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863226988] [2023-11-26 12:03:17,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863226988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:17,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:17,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:17,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588592467] [2023-11-26 12:03:17,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:17,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:17,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:17,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:17,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:17,425 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-26 12:03:17,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 461 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 547.6666666666666) internal successors, (1643), 3 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:17,427 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:17,427 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-26 12:03:17,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:18,296 INFO L124 PetriNetUnfolderBase]: 264/3559 cut-off events. [2023-11-26 12:03:18,297 INFO L125 PetriNetUnfolderBase]: For 342/347 co-relation queries the response was YES. [2023-11-26 12:03:18,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4848 conditions, 3559 events. 264/3559 cut-off events. For 342/347 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 33318 event pairs, 156 based on Foata normal form. 0/3271 useless extension candidates. Maximal degree in co-relation 4669. Up to 480 conditions per place. [2023-11-26 12:03:18,372 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 36 selfloop transitions, 2 changer transitions 0/463 dead transitions. [2023-11-26 12:03:18,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 463 transitions, 1199 flow [2023-11-26 12:03:18,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:18,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:18,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1667 transitions. [2023-11-26 12:03:18,377 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9466212379329926 [2023-11-26 12:03:18,377 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1667 transitions. [2023-11-26 12:03:18,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1667 transitions. [2023-11-26 12:03:18,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:18,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1667 transitions. [2023-11-26 12:03:18,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:18,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:18,386 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:18,386 INFO L175 Difference]: Start difference. First operand has 468 places, 461 transitions, 1116 flow. Second operand 3 states and 1667 transitions. [2023-11-26 12:03:18,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 463 transitions, 1199 flow [2023-11-26 12:03:18,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 463 transitions, 1195 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:18,400 INFO L231 Difference]: Finished difference. Result has 467 places, 460 transitions, 1114 flow [2023-11-26 12:03:18,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1110, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1114, PETRI_PLACES=467, PETRI_TRANSITIONS=460} [2023-11-26 12:03:18,402 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -89 predicate places. [2023-11-26 12:03:18,402 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 460 transitions, 1114 flow [2023-11-26 12:03:18,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.6666666666666) internal successors, (1643), 3 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:18,402 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:18,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:18,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 12:03:18,403 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:18,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:18,404 INFO L85 PathProgramCache]: Analyzing trace with hash -38665850, now seen corresponding path program 1 times [2023-11-26 12:03:18,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:18,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662242369] [2023-11-26 12:03:18,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:18,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:19,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:19,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:19,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662242369] [2023-11-26 12:03:19,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662242369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:19,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:19,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:19,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863065637] [2023-11-26 12:03:19,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:19,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:19,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:19,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:19,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:19,364 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 562 out of 587 [2023-11-26 12:03:19,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 460 transitions, 1114 flow. Second operand has 6 states, 6 states have (on average 564.0) internal successors, (3384), 6 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:19,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:19,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 562 of 587 [2023-11-26 12:03:19,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:20,150 INFO L124 PetriNetUnfolderBase]: 88/2640 cut-off events. [2023-11-26 12:03:20,150 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-26 12:03:20,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3291 conditions, 2640 events. 88/2640 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 21781 event pairs, 8 based on Foata normal form. 0/2427 useless extension candidates. Maximal degree in co-relation 2772. Up to 112 conditions per place. [2023-11-26 12:03:20,201 INFO L140 encePairwiseOnDemand]: 582/587 looper letters, 10 selfloop transitions, 4 changer transitions 0/459 dead transitions. [2023-11-26 12:03:20,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 459 transitions, 1140 flow [2023-11-26 12:03:20,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:20,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3387 transitions. [2023-11-26 12:03:20,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9616695059625213 [2023-11-26 12:03:20,212 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3387 transitions. [2023-11-26 12:03:20,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3387 transitions. [2023-11-26 12:03:20,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:20,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3387 transitions. [2023-11-26 12:03:20,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 564.5) internal successors, (3387), 6 states have internal predecessors, (3387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:20,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:20,227 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 587.0) internal successors, (4109), 7 states have internal predecessors, (4109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:20,227 INFO L175 Difference]: Start difference. First operand has 467 places, 460 transitions, 1114 flow. Second operand 6 states and 3387 transitions. [2023-11-26 12:03:20,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 459 transitions, 1140 flow [2023-11-26 12:03:20,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 459 transitions, 1136 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 12:03:20,239 INFO L231 Difference]: Finished difference. Result has 469 places, 459 transitions, 1116 flow [2023-11-26 12:03:20,240 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1108, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=459, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1116, PETRI_PLACES=469, PETRI_TRANSITIONS=459} [2023-11-26 12:03:20,241 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -87 predicate places. [2023-11-26 12:03:20,241 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 459 transitions, 1116 flow [2023-11-26 12:03:20,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 564.0) internal successors, (3384), 6 states have internal predecessors, (3384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:20,242 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:20,242 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:20,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-26 12:03:20,243 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:20,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:20,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1625987681, now seen corresponding path program 1 times [2023-11-26 12:03:20,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:20,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468567993] [2023-11-26 12:03:20,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:20,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:20,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:20,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:20,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468567993] [2023-11-26 12:03:20,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468567993] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:20,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:20,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:20,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672805126] [2023-11-26 12:03:20,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:20,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:20,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:20,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:20,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:20,427 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 542 out of 587 [2023-11-26 12:03:20,429 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 459 transitions, 1116 flow. Second operand has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:20,429 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:20,429 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 542 of 587 [2023-11-26 12:03:20,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:22,117 INFO L124 PetriNetUnfolderBase]: 464/4510 cut-off events. [2023-11-26 12:03:22,117 INFO L125 PetriNetUnfolderBase]: For 479/488 co-relation queries the response was YES. [2023-11-26 12:03:22,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6596 conditions, 4510 events. 464/4510 cut-off events. For 479/488 co-relation queries the response was YES. Maximal size of possible extension queue 113. Compared 45779 event pairs, 316 based on Foata normal form. 0/4185 useless extension candidates. Maximal degree in co-relation 5791. Up to 853 conditions per place. [2023-11-26 12:03:22,235 INFO L140 encePairwiseOnDemand]: 584/587 looper letters, 38 selfloop transitions, 2 changer transitions 0/461 dead transitions. [2023-11-26 12:03:22,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 470 places, 461 transitions, 1203 flow [2023-11-26 12:03:22,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:22,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:22,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1665 transitions. [2023-11-26 12:03:22,241 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9454855195911414 [2023-11-26 12:03:22,241 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1665 transitions. [2023-11-26 12:03:22,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1665 transitions. [2023-11-26 12:03:22,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:22,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1665 transitions. [2023-11-26 12:03:22,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 555.0) internal successors, (1665), 3 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:22,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:22,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 587.0) internal successors, (2348), 4 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:22,250 INFO L175 Difference]: Start difference. First operand has 469 places, 459 transitions, 1116 flow. Second operand 3 states and 1665 transitions. [2023-11-26 12:03:22,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 470 places, 461 transitions, 1203 flow [2023-11-26 12:03:22,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 466 places, 461 transitions, 1196 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 12:03:22,263 INFO L231 Difference]: Finished difference. Result has 466 places, 458 transitions, 1111 flow [2023-11-26 12:03:22,263 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=587, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=456, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1111, PETRI_PLACES=466, PETRI_TRANSITIONS=458} [2023-11-26 12:03:22,264 INFO L281 CegarLoopForPetriNet]: 556 programPoint places, -90 predicate places. [2023-11-26 12:03:22,264 INFO L495 AbstractCegarLoop]: Abstraction has has 466 places, 458 transitions, 1111 flow [2023-11-26 12:03:22,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 547.3333333333334) internal successors, (1642), 3 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:22,264 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:22,264 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:03:22,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-26 12:03:22,265 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 203 more)] === [2023-11-26 12:03:22,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:22,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1783977578, now seen corresponding path program 1 times [2023-11-26 12:03:22,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:22,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956378253] [2023-11-26 12:03:22,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:22,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:22,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:22,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:22,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956378253] [2023-11-26 12:03:22,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956378253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:22,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:22,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:03:22,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044920784] [2023-11-26 12:03:22,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:22,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:22,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:22,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:22,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:22,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 543 out of 587 [2023-11-26 12:03:22,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 466 places, 458 transitions, 1111 flow. Second operand has 3 states, 3 states have (on average 549.3333333333334) internal successors, (1648), 3 states have internal predecessors, (1648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:03:22,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:22,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 543 of 587 [2023-11-26 12:03:22,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand