./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/array-eq-trans.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_9f3d16ad-1600-44de-9827-aee6da330a52/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/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_9f3d16ad-1600-44de-9827-aee6da330a52/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/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_9f3d16ad-1600-44de-9827-aee6da330a52/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 e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:48:37,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:48:37,907 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:48:37,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:48:37,917 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:48:37,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:48:37,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:48:37,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:48:37,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:48:37,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:48:37,974 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:48:37,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:48:37,975 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:48:37,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:48:37,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:48:37,979 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:48:37,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:48:37,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:48:37,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:48:37,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:48:37,982 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:48:37,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:48:37,983 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:48:37,984 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:48:37,985 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:48:37,985 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:48:37,986 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:48:37,987 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:48:37,988 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:48:37,988 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:48:37,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:48:37,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:48:37,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:48:37,991 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:48:37,992 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:48:37,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:48:37,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:48:37,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:48:37,993 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:48:37,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:48:37,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:48:37,995 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_9f3d16ad-1600-44de-9827-aee6da330a52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7f1528a4c77969c5bff279724a3ed43475460be047e2e4b141f1353c3ea9cfe [2023-11-26 10:48:38,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:48:38,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:48:38,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:48:38,399 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:48:38,400 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:48:38,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2023-11-26 10:48:42,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:48:42,244 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:48:42,244 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2023-11-26 10:48:42,254 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/bin/uautomizer-verify-VRDe98Ueme/data/8000b138f/b90c685b585d4843bfb181b51521132a/FLAG329ab49f6 [2023-11-26 10:48:42,271 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/bin/uautomizer-verify-VRDe98Ueme/data/8000b138f/b90c685b585d4843bfb181b51521132a [2023-11-26 10:48:42,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:48:42,277 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:48:42,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:48:42,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:48:42,285 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:48:42,286 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:42,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@168764bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42, skipping insertion in model container [2023-11-26 10:48:42,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:42,320 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:48:42,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:48:42,667 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:48:42,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:48:42,777 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:48:42,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42 WrapperNode [2023-11-26 10:48:42,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:48:42,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:48:42,781 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:48:42,781 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:48:42,791 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:42,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:42,895 INFO L138 Inliner]: procedures = 24, calls = 47, calls flagged for inlining = 11, calls inlined = 15, statements flattened = 358 [2023-11-26 10:48:42,896 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:48:42,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:48:42,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:48:42,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:48:42,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:42,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:42,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:42,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:42,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:43,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:43,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:43,025 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:43,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:48:43,032 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:48:43,032 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:48:43,032 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:48:43,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (1/1) ... [2023-11-26 10:48:43,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:48:43,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:48:43,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:48:43,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f3d16ad-1600-44de-9827-aee6da330a52/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:48:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:48:43,126 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 10:48:43,127 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 10:48:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 10:48:43,127 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 10:48:43,127 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 10:48:43,128 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 10:48:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:48:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:48:43,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:48:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:48:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:48:43,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:48:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:48:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:48:43,132 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:48:43,274 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:48:43,277 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:48:44,478 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:48:44,508 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:48:44,509 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-26 10:48:44,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:44 BoogieIcfgContainer [2023-11-26 10:48:44,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:48:44,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:48:44,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:48:44,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:48:44,518 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:48:42" (1/3) ... [2023-11-26 10:48:44,519 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35887519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:48:44, skipping insertion in model container [2023-11-26 10:48:44,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:48:42" (2/3) ... [2023-11-26 10:48:44,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35887519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:48:44, skipping insertion in model container [2023-11-26 10:48:44,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:48:44" (3/3) ... [2023-11-26 10:48:44,522 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2023-11-26 10:48:44,532 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:48:44,545 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:48:44,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2023-11-26 10:48:44,546 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:48:44,751 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 10:48:44,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 632 places, 655 transitions, 1331 flow [2023-11-26 10:48:45,270 INFO L124 PetriNetUnfolderBase]: 33/652 cut-off events. [2023-11-26 10:48:45,270 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:48:45,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 665 conditions, 652 events. 33/652 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1344 event pairs, 0 based on Foata normal form. 0/538 useless extension candidates. Maximal degree in co-relation 371. Up to 3 conditions per place. [2023-11-26 10:48:45,287 INFO L82 GeneralOperation]: Start removeDead. Operand has 632 places, 655 transitions, 1331 flow [2023-11-26 10:48:45,310 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 601 places, 621 transitions, 1260 flow [2023-11-26 10:48:45,333 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:48:45,342 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;@520ea4be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:48:45,343 INFO L358 AbstractCegarLoop]: Starting to check reachability of 120 error locations. [2023-11-26 10:48:45,350 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:48:45,351 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2023-11-26 10:48:45,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:48:45,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:48:45,352 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] [2023-11-26 10:48:45,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:48:45,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:45,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2010641452, now seen corresponding path program 1 times [2023-11-26 10:48:45,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:45,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703561509] [2023-11-26 10:48:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:45,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:45,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:45,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:45,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703561509] [2023-11-26 10:48:45,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703561509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:45,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:45,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:45,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926594512] [2023-11-26 10:48:45,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:45,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:48:45,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:45,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:48:45,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:45,916 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 655 [2023-11-26 10:48:45,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 601 places, 621 transitions, 1260 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:45,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:48:45,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 655 [2023-11-26 10:48:45,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:48:46,348 INFO L124 PetriNetUnfolderBase]: 30/827 cut-off events. [2023-11-26 10:48:46,348 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-26 10:48:46,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 827 events. 30/827 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2753 event pairs, 5 based on Foata normal form. 30/705 useless extension candidates. Maximal degree in co-relation 441. Up to 28 conditions per place. [2023-11-26 10:48:46,371 INFO L140 encePairwiseOnDemand]: 638/655 looper letters, 14 selfloop transitions, 2 changer transitions 8/606 dead transitions. [2023-11-26 10:48:46,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 606 transitions, 1262 flow [2023-11-26 10:48:46,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:48:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:48:46,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1894 transitions. [2023-11-26 10:48:46,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9638676844783715 [2023-11-26 10:48:46,407 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1894 transitions. [2023-11-26 10:48:46,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1894 transitions. [2023-11-26 10:48:46,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:48:46,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1894 transitions. [2023-11-26 10:48:46,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 631.3333333333334) internal successors, (1894), 3 states have internal predecessors, (1894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:46,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:46,453 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:46,456 INFO L175 Difference]: Start difference. First operand has 601 places, 621 transitions, 1260 flow. Second operand 3 states and 1894 transitions. [2023-11-26 10:48:46,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 606 transitions, 1262 flow [2023-11-26 10:48:46,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 596 places, 606 transitions, 1250 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 10:48:46,495 INFO L231 Difference]: Finished difference. Result has 596 places, 598 transitions, 1206 flow [2023-11-26 10:48:46,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1218, PETRI_DIFFERENCE_MINUEND_PLACES=594, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=606, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=604, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1206, PETRI_PLACES=596, PETRI_TRANSITIONS=598} [2023-11-26 10:48:46,504 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -5 predicate places. [2023-11-26 10:48:46,504 INFO L495 AbstractCegarLoop]: Abstraction has has 596 places, 598 transitions, 1206 flow [2023-11-26 10:48:46,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:46,507 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:48:46,507 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] [2023-11-26 10:48:46,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:48:46,508 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:48:46,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:46,509 INFO L85 PathProgramCache]: Analyzing trace with hash -738020819, now seen corresponding path program 1 times [2023-11-26 10:48:46,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:46,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696941107] [2023-11-26 10:48:46,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:46,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:46,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:46,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696941107] [2023-11-26 10:48:46,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696941107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:46,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:46,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:46,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931368058] [2023-11-26 10:48:46,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:46,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:48:46,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:46,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:48:46,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:46,699 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 655 [2023-11-26 10:48:46,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 598 transitions, 1206 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:46,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:48:46,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 655 [2023-11-26 10:48:46,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:48:47,067 INFO L124 PetriNetUnfolderBase]: 38/950 cut-off events. [2023-11-26 10:48:47,068 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 10:48:47,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 994 conditions, 950 events. 38/950 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3658 event pairs, 7 based on Foata normal form. 0/776 useless extension candidates. Maximal degree in co-relation 960. Up to 31 conditions per place. [2023-11-26 10:48:47,089 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 14 selfloop transitions, 2 changer transitions 0/597 dead transitions. [2023-11-26 10:48:47,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 589 places, 597 transitions, 1236 flow [2023-11-26 10:48:47,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:48:47,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:48:47,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1880 transitions. [2023-11-26 10:48:47,098 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9567430025445293 [2023-11-26 10:48:47,098 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1880 transitions. [2023-11-26 10:48:47,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1880 transitions. [2023-11-26 10:48:47,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:48:47,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1880 transitions. [2023-11-26 10:48:47,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 626.6666666666666) internal successors, (1880), 3 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:47,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:47,120 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:47,120 INFO L175 Difference]: Start difference. First operand has 596 places, 598 transitions, 1206 flow. Second operand 3 states and 1880 transitions. [2023-11-26 10:48:47,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 589 places, 597 transitions, 1236 flow [2023-11-26 10:48:47,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 587 places, 597 transitions, 1232 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:48:47,139 INFO L231 Difference]: Finished difference. Result has 587 places, 597 transitions, 1204 flow [2023-11-26 10:48:47,140 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1200, PETRI_DIFFERENCE_MINUEND_PLACES=585, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=597, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=595, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1204, PETRI_PLACES=587, PETRI_TRANSITIONS=597} [2023-11-26 10:48:47,141 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -14 predicate places. [2023-11-26 10:48:47,142 INFO L495 AbstractCegarLoop]: Abstraction has has 587 places, 597 transitions, 1204 flow [2023-11-26 10:48:47,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:47,146 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:48:47,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:47,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:48:47,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:48:47,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:47,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1457147716, now seen corresponding path program 1 times [2023-11-26 10:48:47,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:47,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792716572] [2023-11-26 10:48:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:47,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:47,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:47,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:47,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792716572] [2023-11-26 10:48:47,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792716572] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:47,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:47,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:47,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074977049] [2023-11-26 10:48:47,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:47,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:48:47,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:47,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:48:47,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:47,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 655 [2023-11-26 10:48:47,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 587 places, 597 transitions, 1204 flow. Second operand has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:47,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:48:47,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 655 [2023-11-26 10:48:47,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:48:47,604 INFO L124 PetriNetUnfolderBase]: 26/715 cut-off events. [2023-11-26 10:48:47,605 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 10:48:47,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 715 events. 26/715 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 2025 event pairs, 7 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 711. Up to 28 conditions per place. [2023-11-26 10:48:47,619 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 14 selfloop transitions, 2 changer transitions 0/596 dead transitions. [2023-11-26 10:48:47,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 596 transitions, 1234 flow [2023-11-26 10:48:47,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:48:47,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:48:47,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1880 transitions. [2023-11-26 10:48:47,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9567430025445293 [2023-11-26 10:48:47,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1880 transitions. [2023-11-26 10:48:47,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1880 transitions. [2023-11-26 10:48:47,629 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:48:47,629 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1880 transitions. [2023-11-26 10:48:47,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 626.6666666666666) internal successors, (1880), 3 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:47,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:47,645 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:47,645 INFO L175 Difference]: Start difference. First operand has 587 places, 597 transitions, 1204 flow. Second operand 3 states and 1880 transitions. [2023-11-26 10:48:47,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 596 transitions, 1234 flow [2023-11-26 10:48:47,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 596 transitions, 1230 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:48:47,662 INFO L231 Difference]: Finished difference. Result has 586 places, 596 transitions, 1202 flow [2023-11-26 10:48:47,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1198, PETRI_DIFFERENCE_MINUEND_PLACES=584, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=596, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=594, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1202, PETRI_PLACES=586, PETRI_TRANSITIONS=596} [2023-11-26 10:48:47,664 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -15 predicate places. [2023-11-26 10:48:47,665 INFO L495 AbstractCegarLoop]: Abstraction has has 586 places, 596 transitions, 1202 flow [2023-11-26 10:48:47,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 622.3333333333334) internal successors, (1867), 3 states have internal predecessors, (1867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:47,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:48:47,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:48:47,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:48:47,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:48:47,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:47,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1260793119, now seen corresponding path program 1 times [2023-11-26 10:48:47,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:47,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493053756] [2023-11-26 10:48:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:47,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:47,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:47,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:47,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493053756] [2023-11-26 10:48:47,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493053756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:47,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:47,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:48:47,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807872841] [2023-11-26 10:48:47,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:47,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:48:47,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:47,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:48:47,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:48:47,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 655 [2023-11-26 10:48:47,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 586 places, 596 transitions, 1202 flow. Second operand has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:47,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:48:47,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 655 [2023-11-26 10:48:47,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:48:48,081 INFO L124 PetriNetUnfolderBase]: 50/1073 cut-off events. [2023-11-26 10:48:48,082 INFO L125 PetriNetUnfolderBase]: For 7/8 co-relation queries the response was YES. [2023-11-26 10:48:48,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1134 conditions, 1073 events. 50/1073 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4549 event pairs, 12 based on Foata normal form. 0/879 useless extension candidates. Maximal degree in co-relation 1084. Up to 48 conditions per place. [2023-11-26 10:48:48,104 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 16 selfloop transitions, 1 changer transitions 0/591 dead transitions. [2023-11-26 10:48:48,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 591 transitions, 1226 flow [2023-11-26 10:48:48,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:48:48,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:48:48,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1873 transitions. [2023-11-26 10:48:48,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9531806615776082 [2023-11-26 10:48:48,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1873 transitions. [2023-11-26 10:48:48,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1873 transitions. [2023-11-26 10:48:48,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:48:48,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1873 transitions. [2023-11-26 10:48:48,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:48,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:48,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:48,130 INFO L175 Difference]: Start difference. First operand has 586 places, 596 transitions, 1202 flow. Second operand 3 states and 1873 transitions. [2023-11-26 10:48:48,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 591 transitions, 1226 flow [2023-11-26 10:48:48,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 581 places, 591 transitions, 1222 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:48:48,159 INFO L231 Difference]: Finished difference. Result has 581 places, 591 transitions, 1190 flow [2023-11-26 10:48:48,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1188, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=591, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=590, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1190, PETRI_PLACES=581, PETRI_TRANSITIONS=591} [2023-11-26 10:48:48,164 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -20 predicate places. [2023-11-26 10:48:48,164 INFO L495 AbstractCegarLoop]: Abstraction has has 581 places, 591 transitions, 1190 flow [2023-11-26 10:48:48,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:48,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:48:48,167 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] [2023-11-26 10:48:48,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:48:48,168 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:48:48,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:48:48,169 INFO L85 PathProgramCache]: Analyzing trace with hash 976782486, now seen corresponding path program 1 times [2023-11-26 10:48:48,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:48:48,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211171200] [2023-11-26 10:48:48,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:48:48,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:48:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:48:49,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:48:49,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:48:49,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211171200] [2023-11-26 10:48:49,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211171200] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:48:49,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:48:49,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:48:49,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707952731] [2023-11-26 10:48:49,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:48:49,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:48:49,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:48:49,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:48:49,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:48:49,833 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 531 out of 655 [2023-11-26 10:48:49,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 591 transitions, 1190 flow. Second operand has 6 states, 6 states have (on average 532.5) internal successors, (3195), 6 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:48:49,840 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:48:49,840 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 531 of 655 [2023-11-26 10:48:49,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:04,836 INFO L124 PetriNetUnfolderBase]: 13011/59192 cut-off events. [2023-11-26 10:49:04,836 INFO L125 PetriNetUnfolderBase]: For 182/212 co-relation queries the response was YES. [2023-11-26 10:49:05,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74853 conditions, 59192 events. 13011/59192 cut-off events. For 182/212 co-relation queries the response was YES. Maximal size of possible extension queue 1404. Compared 879605 event pairs, 9904 based on Foata normal form. 0/47239 useless extension candidates. Maximal degree in co-relation 74804. Up to 15552 conditions per place. [2023-11-26 10:49:05,776 INFO L140 encePairwiseOnDemand]: 637/655 looper letters, 90 selfloop transitions, 15 changer transitions 0/588 dead transitions. [2023-11-26 10:49:05,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 588 transitions, 1394 flow [2023-11-26 10:49:05,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:49:05,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:49:05,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3294 transitions. [2023-11-26 10:49:05,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8381679389312977 [2023-11-26 10:49:05,791 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3294 transitions. [2023-11-26 10:49:05,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3294 transitions. [2023-11-26 10:49:05,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:05,795 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3294 transitions. [2023-11-26 10:49:05,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 549.0) internal successors, (3294), 6 states have internal predecessors, (3294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:05,824 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 655.0) internal successors, (4585), 7 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:05,829 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 655.0) internal successors, (4585), 7 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:05,829 INFO L175 Difference]: Start difference. First operand has 581 places, 591 transitions, 1190 flow. Second operand 6 states and 3294 transitions. [2023-11-26 10:49:05,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 588 transitions, 1394 flow [2023-11-26 10:49:05,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 588 transitions, 1393 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:49:05,848 INFO L231 Difference]: Finished difference. Result has 582 places, 588 transitions, 1213 flow [2023-11-26 10:49:05,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1183, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1213, PETRI_PLACES=582, PETRI_TRANSITIONS=588} [2023-11-26 10:49:05,855 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -19 predicate places. [2023-11-26 10:49:05,855 INFO L495 AbstractCegarLoop]: Abstraction has has 582 places, 588 transitions, 1213 flow [2023-11-26 10:49:05,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 532.5) internal successors, (3195), 6 states have internal predecessors, (3195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:05,860 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:05,860 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] [2023-11-26 10:49:05,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:49:05,862 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:05,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:05,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1954158817, now seen corresponding path program 1 times [2023-11-26 10:49:05,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:05,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622659364] [2023-11-26 10:49:05,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:05,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:06,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:06,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:06,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622659364] [2023-11-26 10:49:06,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622659364] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:06,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:06,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:06,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71190811] [2023-11-26 10:49:06,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:06,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:06,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:06,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:06,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:06,237 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 622 out of 655 [2023-11-26 10:49:06,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 582 places, 588 transitions, 1213 flow. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:06,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:06,262 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 622 of 655 [2023-11-26 10:49:06,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:06,449 INFO L124 PetriNetUnfolderBase]: 27/757 cut-off events. [2023-11-26 10:49:06,449 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-26 10:49:06,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 757 events. 27/757 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2316 event pairs, 5 based on Foata normal form. 0/640 useless extension candidates. Maximal degree in co-relation 758. Up to 24 conditions per place. [2023-11-26 10:49:06,460 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/587 dead transitions. [2023-11-26 10:49:06,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 583 places, 587 transitions, 1241 flow [2023-11-26 10:49:06,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:06,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:06,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1882 transitions. [2023-11-26 10:49:06,469 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9577608142493639 [2023-11-26 10:49:06,469 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1882 transitions. [2023-11-26 10:49:06,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1882 transitions. [2023-11-26 10:49:06,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:06,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1882 transitions. [2023-11-26 10:49:06,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:06,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:06,487 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:06,488 INFO L175 Difference]: Start difference. First operand has 582 places, 588 transitions, 1213 flow. Second operand 3 states and 1882 transitions. [2023-11-26 10:49:06,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 583 places, 587 transitions, 1241 flow [2023-11-26 10:49:06,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 587 transitions, 1211 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:49:06,506 INFO L231 Difference]: Finished difference. Result has 578 places, 587 transitions, 1185 flow [2023-11-26 10:49:06,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1181, PETRI_DIFFERENCE_MINUEND_PLACES=576, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=585, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1185, PETRI_PLACES=578, PETRI_TRANSITIONS=587} [2023-11-26 10:49:06,509 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -23 predicate places. [2023-11-26 10:49:06,509 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 587 transitions, 1185 flow [2023-11-26 10:49:06,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:06,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:06,511 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 10:49:06,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:49:06,511 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:06,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:06,512 INFO L85 PathProgramCache]: Analyzing trace with hash 134719222, now seen corresponding path program 1 times [2023-11-26 10:49:06,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:06,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202148854] [2023-11-26 10:49:06,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:06,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:06,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:06,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:06,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202148854] [2023-11-26 10:49:06,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202148854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:06,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:06,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:06,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377282255] [2023-11-26 10:49:06,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:06,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:06,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:06,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:06,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:06,601 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 655 [2023-11-26 10:49:06,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 587 transitions, 1185 flow. Second operand has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:06,604 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:06,604 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 655 [2023-11-26 10:49:06,604 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:06,930 INFO L124 PetriNetUnfolderBase]: 73/1325 cut-off events. [2023-11-26 10:49:06,930 INFO L125 PetriNetUnfolderBase]: For 8/13 co-relation queries the response was YES. [2023-11-26 10:49:06,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1410 conditions, 1325 events. 73/1325 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7063 event pairs, 20 based on Foata normal form. 0/1089 useless extension candidates. Maximal degree in co-relation 1360. Up to 65 conditions per place. [2023-11-26 10:49:06,956 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 16 selfloop transitions, 1 changer transitions 0/582 dead transitions. [2023-11-26 10:49:06,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 582 transitions, 1209 flow [2023-11-26 10:49:06,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:06,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:06,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1873 transitions. [2023-11-26 10:49:06,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9531806615776082 [2023-11-26 10:49:06,966 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1873 transitions. [2023-11-26 10:49:06,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1873 transitions. [2023-11-26 10:49:06,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:06,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1873 transitions. [2023-11-26 10:49:06,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:06,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:06,982 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:06,983 INFO L175 Difference]: Start difference. First operand has 578 places, 587 transitions, 1185 flow. Second operand 3 states and 1873 transitions. [2023-11-26 10:49:06,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 582 transitions, 1209 flow [2023-11-26 10:49:06,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 582 transitions, 1205 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:07,001 INFO L231 Difference]: Finished difference. Result has 573 places, 582 transitions, 1173 flow [2023-11-26 10:49:07,002 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1171, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1173, PETRI_PLACES=573, PETRI_TRANSITIONS=582} [2023-11-26 10:49:07,003 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -28 predicate places. [2023-11-26 10:49:07,004 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 582 transitions, 1173 flow [2023-11-26 10:49:07,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:07,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:07,005 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 10:49:07,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:49:07,006 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:07,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:07,007 INFO L85 PathProgramCache]: Analyzing trace with hash -829889210, now seen corresponding path program 1 times [2023-11-26 10:49:07,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:07,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809411732] [2023-11-26 10:49:07,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:07,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:07,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:07,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:07,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:07,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809411732] [2023-11-26 10:49:07,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809411732] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:07,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:07,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:07,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767007127] [2023-11-26 10:49:07,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:07,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:07,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:07,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:07,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:07,129 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 622 out of 655 [2023-11-26 10:49:07,131 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 582 transitions, 1173 flow. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:07,132 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:07,132 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 622 of 655 [2023-11-26 10:49:07,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:07,334 INFO L124 PetriNetUnfolderBase]: 35/893 cut-off events. [2023-11-26 10:49:07,335 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 10:49:07,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 933 conditions, 893 events. 35/893 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3223 event pairs, 7 based on Foata normal form. 0/750 useless extension candidates. Maximal degree in co-relation 883. Up to 27 conditions per place. [2023-11-26 10:49:07,347 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/581 dead transitions. [2023-11-26 10:49:07,347 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 581 transitions, 1201 flow [2023-11-26 10:49:07,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:07,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:07,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1882 transitions. [2023-11-26 10:49:07,354 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9577608142493639 [2023-11-26 10:49:07,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1882 transitions. [2023-11-26 10:49:07,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1882 transitions. [2023-11-26 10:49:07,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:07,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1882 transitions. [2023-11-26 10:49:07,361 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:07,366 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:07,367 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:07,368 INFO L175 Difference]: Start difference. First operand has 573 places, 582 transitions, 1173 flow. Second operand 3 states and 1882 transitions. [2023-11-26 10:49:07,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 581 transitions, 1201 flow [2023-11-26 10:49:07,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 581 transitions, 1200 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:49:07,382 INFO L231 Difference]: Finished difference. Result has 573 places, 581 transitions, 1174 flow [2023-11-26 10:49:07,384 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1170, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=581, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=579, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1174, PETRI_PLACES=573, PETRI_TRANSITIONS=581} [2023-11-26 10:49:07,387 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -28 predicate places. [2023-11-26 10:49:07,387 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 581 transitions, 1174 flow [2023-11-26 10:49:07,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:07,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:07,388 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] [2023-11-26 10:49:07,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:49:07,389 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:07,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:07,389 INFO L85 PathProgramCache]: Analyzing trace with hash -340246155, now seen corresponding path program 1 times [2023-11-26 10:49:07,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:07,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779892961] [2023-11-26 10:49:07,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:07,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:07,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:07,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779892961] [2023-11-26 10:49:07,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779892961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:07,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:07,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:07,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625128431] [2023-11-26 10:49:07,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:07,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:07,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:07,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:07,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:07,471 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 655 [2023-11-26 10:49:07,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 581 transitions, 1174 flow. Second operand has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:07,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:07,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 655 [2023-11-26 10:49:07,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:07,873 INFO L124 PetriNetUnfolderBase]: 70/1226 cut-off events. [2023-11-26 10:49:07,873 INFO L125 PetriNetUnfolderBase]: For 17/19 co-relation queries the response was YES. [2023-11-26 10:49:07,888 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1306 conditions, 1226 events. 70/1226 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 5825 event pairs, 20 based on Foata normal form. 0/1022 useless extension candidates. Maximal degree in co-relation 1256. Up to 67 conditions per place. [2023-11-26 10:49:07,896 INFO L140 encePairwiseOnDemand]: 649/655 looper letters, 16 selfloop transitions, 1 changer transitions 0/576 dead transitions. [2023-11-26 10:49:07,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 576 transitions, 1198 flow [2023-11-26 10:49:07,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:07,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:07,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1873 transitions. [2023-11-26 10:49:07,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9531806615776082 [2023-11-26 10:49:07,905 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1873 transitions. [2023-11-26 10:49:07,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1873 transitions. [2023-11-26 10:49:07,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:07,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1873 transitions. [2023-11-26 10:49:07,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 624.3333333333334) internal successors, (1873), 3 states have internal predecessors, (1873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:07,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:07,920 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:07,921 INFO L175 Difference]: Start difference. First operand has 573 places, 581 transitions, 1174 flow. Second operand 3 states and 1873 transitions. [2023-11-26 10:49:07,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 576 transitions, 1198 flow [2023-11-26 10:49:07,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 576 transitions, 1194 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:07,937 INFO L231 Difference]: Finished difference. Result has 568 places, 576 transitions, 1162 flow [2023-11-26 10:49:07,938 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1160, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=575, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1162, PETRI_PLACES=568, PETRI_TRANSITIONS=576} [2023-11-26 10:49:07,939 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -33 predicate places. [2023-11-26 10:49:07,940 INFO L495 AbstractCegarLoop]: Abstraction has has 568 places, 576 transitions, 1162 flow [2023-11-26 10:49:07,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 618.0) internal successors, (1854), 3 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:07,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:07,941 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:07,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:49:07,941 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:07,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:07,942 INFO L85 PathProgramCache]: Analyzing trace with hash 61115418, now seen corresponding path program 1 times [2023-11-26 10:49:07,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:07,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535574795] [2023-11-26 10:49:07,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:07,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:08,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:08,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535574795] [2023-11-26 10:49:08,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535574795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:08,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:08,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:08,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230717963] [2023-11-26 10:49:08,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:08,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:08,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:08,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:08,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:08,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 622 out of 655 [2023-11-26 10:49:08,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 576 transitions, 1162 flow. Second operand has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:08,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 622 of 655 [2023-11-26 10:49:08,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:08,199 INFO L124 PetriNetUnfolderBase]: 26/692 cut-off events. [2023-11-26 10:49:08,200 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-26 10:49:08,206 INFO L83 FinitePrefix]: Finished finitePrefix Result has 730 conditions, 692 events. 26/692 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1879 event pairs, 7 based on Foata normal form. 0/601 useless extension candidates. Maximal degree in co-relation 680. Up to 27 conditions per place. [2023-11-26 10:49:08,210 INFO L140 encePairwiseOnDemand]: 652/655 looper letters, 13 selfloop transitions, 2 changer transitions 0/575 dead transitions. [2023-11-26 10:49:08,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 575 transitions, 1190 flow [2023-11-26 10:49:08,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:08,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:08,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1882 transitions. [2023-11-26 10:49:08,218 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9577608142493639 [2023-11-26 10:49:08,218 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1882 transitions. [2023-11-26 10:49:08,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1882 transitions. [2023-11-26 10:49:08,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:08,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1882 transitions. [2023-11-26 10:49:08,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,232 INFO L175 Difference]: Start difference. First operand has 568 places, 576 transitions, 1162 flow. Second operand 3 states and 1882 transitions. [2023-11-26 10:49:08,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 575 transitions, 1190 flow [2023-11-26 10:49:08,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 575 transitions, 1189 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:49:08,248 INFO L231 Difference]: Finished difference. Result has 568 places, 575 transitions, 1163 flow [2023-11-26 10:49:08,249 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1159, PETRI_DIFFERENCE_MINUEND_PLACES=566, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1163, PETRI_PLACES=568, PETRI_TRANSITIONS=575} [2023-11-26 10:49:08,250 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -33 predicate places. [2023-11-26 10:49:08,251 INFO L495 AbstractCegarLoop]: Abstraction has has 568 places, 575 transitions, 1163 flow [2023-11-26 10:49:08,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 623.3333333333334) internal successors, (1870), 3 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,252 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:08,252 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:08,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:49:08,252 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:08,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:08,253 INFO L85 PathProgramCache]: Analyzing trace with hash -2035003892, now seen corresponding path program 1 times [2023-11-26 10:49:08,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:08,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331815357] [2023-11-26 10:49:08,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:08,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:08,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:08,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331815357] [2023-11-26 10:49:08,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331815357] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:08,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:08,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:08,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065014114] [2023-11-26 10:49:08,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:08,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:08,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:08,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:08,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:08,366 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 655 [2023-11-26 10:49:08,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 568 places, 575 transitions, 1163 flow. Second operand has 3 states, 3 states have (on average 606.0) internal successors, (1818), 3 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:08,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 655 [2023-11-26 10:49:08,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:08,530 INFO L124 PetriNetUnfolderBase]: 44/706 cut-off events. [2023-11-26 10:49:08,530 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:49:08,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 706 events. 44/706 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2192 event pairs, 2 based on Foata normal form. 0/625 useless extension candidates. Maximal degree in co-relation 761. Up to 63 conditions per place. [2023-11-26 10:49:08,540 INFO L140 encePairwiseOnDemand]: 644/655 looper letters, 25 selfloop transitions, 2 changer transitions 0/568 dead transitions. [2023-11-26 10:49:08,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 568 transitions, 1205 flow [2023-11-26 10:49:08,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:08,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:08,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1851 transitions. [2023-11-26 10:49:08,548 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9419847328244275 [2023-11-26 10:49:08,548 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1851 transitions. [2023-11-26 10:49:08,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1851 transitions. [2023-11-26 10:49:08,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:08,550 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1851 transitions. [2023-11-26 10:49:08,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 617.0) internal successors, (1851), 3 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,562 INFO L175 Difference]: Start difference. First operand has 568 places, 575 transitions, 1163 flow. Second operand 3 states and 1851 transitions. [2023-11-26 10:49:08,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 568 transitions, 1205 flow [2023-11-26 10:49:08,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 568 transitions, 1201 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:08,578 INFO L231 Difference]: Finished difference. Result has 559 places, 566 transitions, 1145 flow [2023-11-26 10:49:08,579 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1141, PETRI_DIFFERENCE_MINUEND_PLACES=557, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1145, PETRI_PLACES=559, PETRI_TRANSITIONS=566} [2023-11-26 10:49:08,580 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -42 predicate places. [2023-11-26 10:49:08,580 INFO L495 AbstractCegarLoop]: Abstraction has has 559 places, 566 transitions, 1145 flow [2023-11-26 10:49:08,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 606.0) internal successors, (1818), 3 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,581 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:08,582 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:08,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:49:08,582 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:08,583 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:08,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1222475227, now seen corresponding path program 1 times [2023-11-26 10:49:08,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:08,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287445207] [2023-11-26 10:49:08,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:08,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:08,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:08,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287445207] [2023-11-26 10:49:08,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287445207] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:08,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:08,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:08,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993372557] [2023-11-26 10:49:08,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:08,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:08,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:08,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:08,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:08,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 655 [2023-11-26 10:49:08,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 559 places, 566 transitions, 1145 flow. Second operand has 3 states, 3 states have (on average 606.3333333333334) internal successors, (1819), 3 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,697 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:08,697 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 655 [2023-11-26 10:49:08,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:08,839 INFO L124 PetriNetUnfolderBase]: 44/697 cut-off events. [2023-11-26 10:49:08,839 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-26 10:49:08,846 INFO L83 FinitePrefix]: Finished finitePrefix Result has 790 conditions, 697 events. 44/697 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2214 event pairs, 2 based on Foata normal form. 0/624 useless extension candidates. Maximal degree in co-relation 741. Up to 62 conditions per place. [2023-11-26 10:49:08,849 INFO L140 encePairwiseOnDemand]: 644/655 looper letters, 25 selfloop transitions, 2 changer transitions 0/559 dead transitions. [2023-11-26 10:49:08,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 559 transitions, 1187 flow [2023-11-26 10:49:08,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:08,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:08,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1851 transitions. [2023-11-26 10:49:08,856 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9419847328244275 [2023-11-26 10:49:08,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1851 transitions. [2023-11-26 10:49:08,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1851 transitions. [2023-11-26 10:49:08,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:08,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1851 transitions. [2023-11-26 10:49:08,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 617.0) internal successors, (1851), 3 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,869 INFO L175 Difference]: Start difference. First operand has 559 places, 566 transitions, 1145 flow. Second operand 3 states and 1851 transitions. [2023-11-26 10:49:08,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 559 transitions, 1187 flow [2023-11-26 10:49:08,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 559 transitions, 1183 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:08,884 INFO L231 Difference]: Finished difference. Result has 550 places, 557 transitions, 1127 flow [2023-11-26 10:49:08,885 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=555, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1127, PETRI_PLACES=550, PETRI_TRANSITIONS=557} [2023-11-26 10:49:08,886 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -51 predicate places. [2023-11-26 10:49:08,886 INFO L495 AbstractCegarLoop]: Abstraction has has 550 places, 557 transitions, 1127 flow [2023-11-26 10:49:08,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 606.3333333333334) internal successors, (1819), 3 states have internal predecessors, (1819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:08,887 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:08,887 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:08,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:49:08,888 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:08,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:08,888 INFO L85 PathProgramCache]: Analyzing trace with hash 306910041, now seen corresponding path program 1 times [2023-11-26 10:49:08,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:08,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384654973] [2023-11-26 10:49:08,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:08,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:08,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:08,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:08,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384654973] [2023-11-26 10:49:08,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384654973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:08,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:08,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:49:08,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506150528] [2023-11-26 10:49:08,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:08,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:08,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:08,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:08,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:09,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 625 out of 655 [2023-11-26 10:49:09,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 550 places, 557 transitions, 1127 flow. Second operand has 3 states, 3 states have (on average 626.6666666666666) internal successors, (1880), 3 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:09,007 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:09,007 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 625 of 655 [2023-11-26 10:49:09,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:09,129 INFO L124 PetriNetUnfolderBase]: 38/694 cut-off events. [2023-11-26 10:49:09,130 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:49:09,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 772 conditions, 694 events. 38/694 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1945 event pairs, 12 based on Foata normal form. 0/624 useless extension candidates. Maximal degree in co-relation 723. Up to 39 conditions per place. [2023-11-26 10:49:09,138 INFO L140 encePairwiseOnDemand]: 651/655 looper letters, 14 selfloop transitions, 3 changer transitions 0/560 dead transitions. [2023-11-26 10:49:09,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 552 places, 560 transitions, 1169 flow [2023-11-26 10:49:09,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:09,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:09,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1893 transitions. [2023-11-26 10:49:09,146 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9633587786259542 [2023-11-26 10:49:09,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1893 transitions. [2023-11-26 10:49:09,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1893 transitions. [2023-11-26 10:49:09,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:09,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1893 transitions. [2023-11-26 10:49:09,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 631.0) internal successors, (1893), 3 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:09,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:09,159 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:09,159 INFO L175 Difference]: Start difference. First operand has 550 places, 557 transitions, 1127 flow. Second operand 3 states and 1893 transitions. [2023-11-26 10:49:09,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 552 places, 560 transitions, 1169 flow [2023-11-26 10:49:09,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 550 places, 560 transitions, 1165 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:09,174 INFO L231 Difference]: Finished difference. Result has 552 places, 558 transitions, 1141 flow [2023-11-26 10:49:09,176 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1123, PETRI_DIFFERENCE_MINUEND_PLACES=548, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=557, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=554, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1141, PETRI_PLACES=552, PETRI_TRANSITIONS=558} [2023-11-26 10:49:09,177 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -49 predicate places. [2023-11-26 10:49:09,177 INFO L495 AbstractCegarLoop]: Abstraction has has 552 places, 558 transitions, 1141 flow [2023-11-26 10:49:09,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 626.6666666666666) internal successors, (1880), 3 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:09,178 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:09,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:09,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 10:49:09,179 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:09,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:09,180 INFO L85 PathProgramCache]: Analyzing trace with hash -688316023, now seen corresponding path program 1 times [2023-11-26 10:49:09,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:09,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695590230] [2023-11-26 10:49:09,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:09,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:09,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:09,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:09,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:09,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695590230] [2023-11-26 10:49:09,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695590230] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:09,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:09,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:09,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566727259] [2023-11-26 10:49:09,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:09,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:09,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:09,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:09,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:09,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 655 [2023-11-26 10:49:09,333 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 552 places, 558 transitions, 1141 flow. Second operand has 3 states, 3 states have (on average 606.6666666666666) internal successors, (1820), 3 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:09,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:09,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 655 [2023-11-26 10:49:09,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:09,545 INFO L124 PetriNetUnfolderBase]: 44/709 cut-off events. [2023-11-26 10:49:09,545 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-11-26 10:49:09,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 798 conditions, 709 events. 44/709 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2307 event pairs, 18 based on Foata normal form. 0/644 useless extension candidates. Maximal degree in co-relation 748. Up to 61 conditions per place. [2023-11-26 10:49:09,555 INFO L140 encePairwiseOnDemand]: 644/655 looper letters, 25 selfloop transitions, 2 changer transitions 0/551 dead transitions. [2023-11-26 10:49:09,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 551 transitions, 1183 flow [2023-11-26 10:49:09,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:09,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:09,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1851 transitions. [2023-11-26 10:49:09,566 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9419847328244275 [2023-11-26 10:49:09,566 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1851 transitions. [2023-11-26 10:49:09,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1851 transitions. [2023-11-26 10:49:09,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:09,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1851 transitions. [2023-11-26 10:49:09,576 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 617.0) internal successors, (1851), 3 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:09,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:09,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:09,585 INFO L175 Difference]: Start difference. First operand has 552 places, 558 transitions, 1141 flow. Second operand 3 states and 1851 transitions. [2023-11-26 10:49:09,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 551 transitions, 1183 flow [2023-11-26 10:49:09,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 551 transitions, 1177 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:09,606 INFO L231 Difference]: Finished difference. Result has 543 places, 549 transitions, 1121 flow [2023-11-26 10:49:09,608 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1117, PETRI_DIFFERENCE_MINUEND_PLACES=541, 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=1121, PETRI_PLACES=543, PETRI_TRANSITIONS=549} [2023-11-26 10:49:09,609 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -58 predicate places. [2023-11-26 10:49:09,609 INFO L495 AbstractCegarLoop]: Abstraction has has 543 places, 549 transitions, 1121 flow [2023-11-26 10:49:09,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 606.6666666666666) internal successors, (1820), 3 states have internal predecessors, (1820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:09,610 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:09,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:09,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 10:49:09,612 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:09,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:09,612 INFO L85 PathProgramCache]: Analyzing trace with hash -651494959, now seen corresponding path program 1 times [2023-11-26 10:49:09,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:09,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685701024] [2023-11-26 10:49:09,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:09,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:09,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:09,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:09,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685701024] [2023-11-26 10:49:09,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685701024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:09,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:09,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:09,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306971878] [2023-11-26 10:49:09,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:09,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:09,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:09,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:09,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:09,782 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 655 [2023-11-26 10:49:09,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 549 transitions, 1121 flow. Second operand has 3 states, 3 states have (on average 621.3333333333334) internal successors, (1864), 3 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:09,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:09,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 655 [2023-11-26 10:49:09,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:10,149 INFO L124 PetriNetUnfolderBase]: 62/1118 cut-off events. [2023-11-26 10:49:10,149 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-26 10:49:10,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1227 conditions, 1118 events. 62/1118 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4636 event pairs, 2 based on Foata normal form. 0/1015 useless extension candidates. Maximal degree in co-relation 1177. Up to 52 conditions per place. [2023-11-26 10:49:10,169 INFO L140 encePairwiseOnDemand]: 647/655 looper letters, 20 selfloop transitions, 4 changer transitions 0/554 dead transitions. [2023-11-26 10:49:10,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 541 places, 554 transitions, 1184 flow [2023-11-26 10:49:10,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:10,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1888 transitions. [2023-11-26 10:49:10,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9608142493638677 [2023-11-26 10:49:10,180 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1888 transitions. [2023-11-26 10:49:10,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1888 transitions. [2023-11-26 10:49:10,183 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:10,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1888 transitions. [2023-11-26 10:49:10,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.3333333333334) internal successors, (1888), 3 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:10,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:10,199 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:10,199 INFO L175 Difference]: Start difference. First operand has 543 places, 549 transitions, 1121 flow. Second operand 3 states and 1888 transitions. [2023-11-26 10:49:10,199 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 541 places, 554 transitions, 1184 flow [2023-11-26 10:49:10,207 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 554 transitions, 1180 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:10,219 INFO L231 Difference]: Finished difference. Result has 540 places, 549 transitions, 1137 flow [2023-11-26 10:49:10,221 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1109, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1137, PETRI_PLACES=540, PETRI_TRANSITIONS=549} [2023-11-26 10:49:10,223 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -61 predicate places. [2023-11-26 10:49:10,223 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 549 transitions, 1137 flow [2023-11-26 10:49:10,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 621.3333333333334) internal successors, (1864), 3 states have internal predecessors, (1864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:10,225 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:10,225 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:10,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 10:49:10,226 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:10,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:10,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1921018456, now seen corresponding path program 1 times [2023-11-26 10:49:10,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:10,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391750923] [2023-11-26 10:49:10,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:10,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:10,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:10,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391750923] [2023-11-26 10:49:10,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391750923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:10,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:10,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:49:10,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853896540] [2023-11-26 10:49:10,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:10,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:10,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:10,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:10,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:10,374 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 625 out of 655 [2023-11-26 10:49:10,377 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 549 transitions, 1137 flow. Second operand has 3 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:10,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:10,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 625 of 655 [2023-11-26 10:49:10,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:10,723 INFO L124 PetriNetUnfolderBase]: 63/960 cut-off events. [2023-11-26 10:49:10,723 INFO L125 PetriNetUnfolderBase]: For 24/34 co-relation queries the response was YES. [2023-11-26 10:49:10,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1078 conditions, 960 events. 63/960 cut-off events. For 24/34 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3923 event pairs, 18 based on Foata normal form. 0/863 useless extension candidates. Maximal degree in co-relation 1028. Up to 57 conditions per place. [2023-11-26 10:49:10,744 INFO L140 encePairwiseOnDemand]: 651/655 looper letters, 14 selfloop transitions, 3 changer transitions 0/552 dead transitions. [2023-11-26 10:49:10,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 552 transitions, 1179 flow [2023-11-26 10:49:10,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:10,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:10,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1893 transitions. [2023-11-26 10:49:10,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9633587786259542 [2023-11-26 10:49:10,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1893 transitions. [2023-11-26 10:49:10,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1893 transitions. [2023-11-26 10:49:10,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:10,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1893 transitions. [2023-11-26 10:49:10,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 631.0) internal successors, (1893), 3 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:10,775 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:10,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:10,778 INFO L175 Difference]: Start difference. First operand has 540 places, 549 transitions, 1137 flow. Second operand 3 states and 1893 transitions. [2023-11-26 10:49:10,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 552 transitions, 1179 flow [2023-11-26 10:49:10,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 552 transitions, 1179 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:49:10,797 INFO L231 Difference]: Finished difference. Result has 544 places, 550 transitions, 1155 flow [2023-11-26 10:49:10,800 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1137, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1155, PETRI_PLACES=544, PETRI_TRANSITIONS=550} [2023-11-26 10:49:10,800 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -57 predicate places. [2023-11-26 10:49:10,801 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 550 transitions, 1155 flow [2023-11-26 10:49:10,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.0) internal successors, (1881), 3 states have internal predecessors, (1881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:10,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:10,803 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:10,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 10:49:10,803 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:10,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:10,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1753253696, now seen corresponding path program 1 times [2023-11-26 10:49:10,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:10,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415513567] [2023-11-26 10:49:10,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:10,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:12,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:12,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:12,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415513567] [2023-11-26 10:49:12,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415513567] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:12,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:12,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:49:12,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073419624] [2023-11-26 10:49:12,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:12,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:49:12,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:12,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:49:12,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:49:13,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 611 out of 655 [2023-11-26 10:49:13,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 550 transitions, 1155 flow. Second operand has 6 states, 6 states have (on average 612.6666666666666) internal successors, (3676), 6 states have internal predecessors, (3676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:13,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:13,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 611 of 655 [2023-11-26 10:49:13,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:13,690 INFO L124 PetriNetUnfolderBase]: 30/755 cut-off events. [2023-11-26 10:49:13,690 INFO L125 PetriNetUnfolderBase]: For 9/16 co-relation queries the response was YES. [2023-11-26 10:49:13,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 831 conditions, 755 events. 30/755 cut-off events. For 9/16 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 2022 event pairs, 0 based on Foata normal form. 4/699 useless extension candidates. Maximal degree in co-relation 777. Up to 18 conditions per place. [2023-11-26 10:49:13,702 INFO L140 encePairwiseOnDemand]: 650/655 looper letters, 21 selfloop transitions, 4 changer transitions 0/549 dead transitions. [2023-11-26 10:49:13,702 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 548 places, 549 transitions, 1203 flow [2023-11-26 10:49:13,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:49:13,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:49:13,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3692 transitions. [2023-11-26 10:49:13,720 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9394402035623409 [2023-11-26 10:49:13,720 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3692 transitions. [2023-11-26 10:49:13,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3692 transitions. [2023-11-26 10:49:13,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:13,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3692 transitions. [2023-11-26 10:49:13,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 615.3333333333334) internal successors, (3692), 6 states have internal predecessors, (3692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:13,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 655.0) internal successors, (4585), 7 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:13,750 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 655.0) internal successors, (4585), 7 states have internal predecessors, (4585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:13,750 INFO L175 Difference]: Start difference. First operand has 544 places, 550 transitions, 1155 flow. Second operand 6 states and 3692 transitions. [2023-11-26 10:49:13,750 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 548 places, 549 transitions, 1203 flow [2023-11-26 10:49:13,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 546 places, 549 transitions, 1197 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:49:13,772 INFO L231 Difference]: Finished difference. Result has 546 places, 549 transitions, 1155 flow [2023-11-26 10:49:13,773 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1147, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1155, PETRI_PLACES=546, PETRI_TRANSITIONS=549} [2023-11-26 10:49:13,774 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -55 predicate places. [2023-11-26 10:49:13,775 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 549 transitions, 1155 flow [2023-11-26 10:49:13,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 612.6666666666666) internal successors, (3676), 6 states have internal predecessors, (3676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:13,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:13,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:13,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 10:49:13,778 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:13,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:13,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1625935771, now seen corresponding path program 1 times [2023-11-26 10:49:13,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:13,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546294076] [2023-11-26 10:49:13,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:13,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:13,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:13,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:13,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546294076] [2023-11-26 10:49:13,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546294076] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:13,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:13,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:49:13,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805485782] [2023-11-26 10:49:13,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:13,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:13,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:13,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:13,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:13,915 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 620 out of 655 [2023-11-26 10:49:13,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 549 transitions, 1155 flow. Second operand has 3 states, 3 states have (on average 621.6666666666666) internal successors, (1865), 3 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:13,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:13,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 620 of 655 [2023-11-26 10:49:13,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:14,429 INFO L124 PetriNetUnfolderBase]: 107/1756 cut-off events. [2023-11-26 10:49:14,429 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-26 10:49:14,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1972 conditions, 1756 events. 107/1756 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 9876 event pairs, 8 based on Foata normal form. 0/1599 useless extension candidates. Maximal degree in co-relation 1920. Up to 76 conditions per place. [2023-11-26 10:49:14,460 INFO L140 encePairwiseOnDemand]: 647/655 looper letters, 20 selfloop transitions, 4 changer transitions 0/554 dead transitions. [2023-11-26 10:49:14,460 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 554 transitions, 1218 flow [2023-11-26 10:49:14,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:14,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1888 transitions. [2023-11-26 10:49:14,468 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9608142493638677 [2023-11-26 10:49:14,468 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1888 transitions. [2023-11-26 10:49:14,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1888 transitions. [2023-11-26 10:49:14,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:14,470 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1888 transitions. [2023-11-26 10:49:14,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 629.3333333333334) internal successors, (1888), 3 states have internal predecessors, (1888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:14,479 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:14,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:14,481 INFO L175 Difference]: Start difference. First operand has 546 places, 549 transitions, 1155 flow. Second operand 3 states and 1888 transitions. [2023-11-26 10:49:14,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 554 transitions, 1218 flow [2023-11-26 10:49:14,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 554 transitions, 1211 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:49:14,497 INFO L231 Difference]: Finished difference. Result has 541 places, 549 transitions, 1168 flow [2023-11-26 10:49:14,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=538, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1168, PETRI_PLACES=541, PETRI_TRANSITIONS=549} [2023-11-26 10:49:14,498 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -60 predicate places. [2023-11-26 10:49:14,498 INFO L495 AbstractCegarLoop]: Abstraction has has 541 places, 549 transitions, 1168 flow [2023-11-26 10:49:14,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 621.6666666666666) internal successors, (1865), 3 states have internal predecessors, (1865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:14,499 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:14,500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:14,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 10:49:14,500 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:14,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:14,501 INFO L85 PathProgramCache]: Analyzing trace with hash 674895095, now seen corresponding path program 1 times [2023-11-26 10:49:14,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:14,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789277023] [2023-11-26 10:49:14,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:14,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:14,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:14,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:14,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789277023] [2023-11-26 10:49:14,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789277023] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:14,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:14,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 10:49:14,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438627708] [2023-11-26 10:49:14,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:14,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:49:14,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:14,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:49:14,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:49:15,768 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 655 [2023-11-26 10:49:15,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 541 places, 549 transitions, 1168 flow. Second operand has 8 states, 8 states have (on average 598.125) internal successors, (4785), 8 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:15,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:15,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 655 [2023-11-26 10:49:15,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:16,763 INFO L124 PetriNetUnfolderBase]: 161/2501 cut-off events. [2023-11-26 10:49:16,763 INFO L125 PetriNetUnfolderBase]: For 34/62 co-relation queries the response was YES. [2023-11-26 10:49:16,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3018 conditions, 2501 events. 161/2501 cut-off events. For 34/62 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 15457 event pairs, 14 based on Foata normal form. 5/2323 useless extension candidates. Maximal degree in co-relation 2963. Up to 88 conditions per place. [2023-11-26 10:49:16,793 INFO L140 encePairwiseOnDemand]: 638/655 looper letters, 78 selfloop transitions, 22 changer transitions 0/603 dead transitions. [2023-11-26 10:49:16,793 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 603 transitions, 1509 flow [2023-11-26 10:49:16,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 10:49:16,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2023-11-26 10:49:16,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 7823 transitions. [2023-11-26 10:49:16,820 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.91873165002936 [2023-11-26 10:49:16,820 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 7823 transitions. [2023-11-26 10:49:16,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 7823 transitions. [2023-11-26 10:49:16,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:16,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 7823 transitions. [2023-11-26 10:49:16,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 601.7692307692307) internal successors, (7823), 13 states have internal predecessors, (7823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:16,863 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 655.0) internal successors, (9170), 14 states have internal predecessors, (9170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:16,867 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 655.0) internal successors, (9170), 14 states have internal predecessors, (9170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:16,868 INFO L175 Difference]: Start difference. First operand has 541 places, 549 transitions, 1168 flow. Second operand 13 states and 7823 transitions. [2023-11-26 10:49:16,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 603 transitions, 1509 flow [2023-11-26 10:49:16,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 553 places, 603 transitions, 1509 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:49:16,886 INFO L231 Difference]: Finished difference. Result has 558 places, 561 transitions, 1281 flow [2023-11-26 10:49:16,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1168, PETRI_DIFFERENCE_MINUEND_PLACES=541, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1281, PETRI_PLACES=558, PETRI_TRANSITIONS=561} [2023-11-26 10:49:16,888 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -43 predicate places. [2023-11-26 10:49:16,888 INFO L495 AbstractCegarLoop]: Abstraction has has 558 places, 561 transitions, 1281 flow [2023-11-26 10:49:16,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 598.125) internal successors, (4785), 8 states have internal predecessors, (4785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:16,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:16,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:16,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 10:49:16,891 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:16,892 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:16,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2020870411, now seen corresponding path program 1 times [2023-11-26 10:49:16,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:16,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137284317] [2023-11-26 10:49:16,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:16,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:17,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:17,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:17,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137284317] [2023-11-26 10:49:17,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137284317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:17,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:17,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 10:49:17,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403695620] [2023-11-26 10:49:17,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:17,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:49:17,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:17,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:49:17,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:49:18,329 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 655 [2023-11-26 10:49:18,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 558 places, 561 transitions, 1281 flow. Second operand has 8 states, 8 states have (on average 598.25) internal successors, (4786), 8 states have internal predecessors, (4786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:18,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:18,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 655 [2023-11-26 10:49:18,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:20,757 INFO L124 PetriNetUnfolderBase]: 396/5670 cut-off events. [2023-11-26 10:49:20,757 INFO L125 PetriNetUnfolderBase]: For 246/296 co-relation queries the response was YES. [2023-11-26 10:49:20,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6850 conditions, 5670 events. 396/5670 cut-off events. For 246/296 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 51196 event pairs, 68 based on Foata normal form. 16/5179 useless extension candidates. Maximal degree in co-relation 6784. Up to 201 conditions per place. [2023-11-26 10:49:20,921 INFO L140 encePairwiseOnDemand]: 638/655 looper letters, 74 selfloop transitions, 19 changer transitions 0/603 dead transitions. [2023-11-26 10:49:20,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 569 places, 603 transitions, 1581 flow [2023-11-26 10:49:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 10:49:20,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-11-26 10:49:20,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 7216 transitions. [2023-11-26 10:49:20,946 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9180661577608142 [2023-11-26 10:49:20,947 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 7216 transitions. [2023-11-26 10:49:20,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 7216 transitions. [2023-11-26 10:49:20,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:20,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 7216 transitions. [2023-11-26 10:49:20,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 601.3333333333334) internal successors, (7216), 12 states have internal predecessors, (7216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:20,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 655.0) internal successors, (8515), 13 states have internal predecessors, (8515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:20,983 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 655.0) internal successors, (8515), 13 states have internal predecessors, (8515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:20,984 INFO L175 Difference]: Start difference. First operand has 558 places, 561 transitions, 1281 flow. Second operand 12 states and 7216 transitions. [2023-11-26 10:49:20,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 569 places, 603 transitions, 1581 flow [2023-11-26 10:49:20,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 603 transitions, 1581 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:49:21,005 INFO L231 Difference]: Finished difference. Result has 574 places, 572 transitions, 1388 flow [2023-11-26 10:49:21,006 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1281, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=545, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1388, PETRI_PLACES=574, PETRI_TRANSITIONS=572} [2023-11-26 10:49:21,007 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -27 predicate places. [2023-11-26 10:49:21,007 INFO L495 AbstractCegarLoop]: Abstraction has has 574 places, 572 transitions, 1388 flow [2023-11-26 10:49:21,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 598.25) internal successors, (4786), 8 states have internal predecessors, (4786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:21,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:21,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:21,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 10:49:21,011 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:21,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:21,012 INFO L85 PathProgramCache]: Analyzing trace with hash -46422532, now seen corresponding path program 1 times [2023-11-26 10:49:21,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:21,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519549756] [2023-11-26 10:49:21,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:21,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:21,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:21,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:21,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519549756] [2023-11-26 10:49:21,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519549756] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:21,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:21,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:49:21,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288506037] [2023-11-26 10:49:21,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:21,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:49:21,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:21,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:49:21,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:49:21,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 625 out of 655 [2023-11-26 10:49:21,122 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 572 transitions, 1388 flow. Second operand has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:21,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:49:21,123 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 625 of 655 [2023-11-26 10:49:21,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:49:23,040 INFO L124 PetriNetUnfolderBase]: 626/6434 cut-off events. [2023-11-26 10:49:23,040 INFO L125 PetriNetUnfolderBase]: For 483/579 co-relation queries the response was YES. [2023-11-26 10:49:23,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7826 conditions, 6434 events. 626/6434 cut-off events. For 483/579 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 61361 event pairs, 220 based on Foata normal form. 2/5699 useless extension candidates. Maximal degree in co-relation 7752. Up to 627 conditions per place. [2023-11-26 10:49:23,132 INFO L140 encePairwiseOnDemand]: 651/655 looper letters, 14 selfloop transitions, 3 changer transitions 0/575 dead transitions. [2023-11-26 10:49:23,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 575 transitions, 1430 flow [2023-11-26 10:49:23,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:49:23,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:49:23,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1893 transitions. [2023-11-26 10:49:23,139 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9633587786259542 [2023-11-26 10:49:23,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1893 transitions. [2023-11-26 10:49:23,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1893 transitions. [2023-11-26 10:49:23,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:49:23,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1893 transitions. [2023-11-26 10:49:23,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 631.0) internal successors, (1893), 3 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:23,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:23,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 655.0) internal successors, (2620), 4 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:23,148 INFO L175 Difference]: Start difference. First operand has 574 places, 572 transitions, 1388 flow. Second operand 3 states and 1893 transitions. [2023-11-26 10:49:23,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 575 transitions, 1430 flow [2023-11-26 10:49:23,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 576 places, 575 transitions, 1430 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:49:23,171 INFO L231 Difference]: Finished difference. Result has 578 places, 573 transitions, 1406 flow [2023-11-26 10:49:23,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=655, PETRI_DIFFERENCE_MINUEND_FLOW=1388, PETRI_DIFFERENCE_MINUEND_PLACES=574, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=572, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=569, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1406, PETRI_PLACES=578, PETRI_TRANSITIONS=573} [2023-11-26 10:49:23,173 INFO L281 CegarLoopForPetriNet]: 601 programPoint places, -23 predicate places. [2023-11-26 10:49:23,174 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 573 transitions, 1406 flow [2023-11-26 10:49:23,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 627.3333333333334) internal successors, (1882), 3 states have internal predecessors, (1882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:49:23,175 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:49:23,175 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:49:23,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 10:49:23,176 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2023-11-26 10:49:23,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:49:23,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1991312736, now seen corresponding path program 1 times [2023-11-26 10:49:23,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:49:23,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147710130] [2023-11-26 10:49:23,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:49:23,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:49:23,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:49:23,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:49:23,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:49:23,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147710130] [2023-11-26 10:49:23,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147710130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:49:23,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:49:23,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 10:49:23,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556954476] [2023-11-26 10:49:23,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:49:23,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 10:49:23,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:49:23,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 10:49:23,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56