./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx --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 89e1e1c0e1e01616972f9a6d634b048a563c333adf9bbdacaa43c945dbb7e140 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:20:04,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:20:04,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:20:04,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:20:04,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:20:04,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:20:04,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:20:04,958 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:20:04,959 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:20:04,967 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:20:04,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:20:04,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:20:04,969 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:20:04,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:20:04,972 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:20:04,972 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:20:04,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:20:04,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:20:04,974 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:20:04,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:20:04,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:20:04,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:20:04,976 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:20:04,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:20:04,977 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:20:04,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:20:04,977 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:20:04,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:20:04,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:20:04,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:20:04,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:04,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:20:04,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:20:04,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:20:04,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:20:04,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:20:04,981 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:20:04,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:20:04,981 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:20:04,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:20:04,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:20:04,982 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_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89e1e1c0e1e01616972f9a6d634b048a563c333adf9bbdacaa43c945dbb7e140 [2023-11-21 22:20:05,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:20:05,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:20:05,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:20:05,304 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:20:05,305 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:20:05,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-race.i [2023-11-21 22:20:08,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:20:08,827 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:20:08,828 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/sv-benchmarks/c/pthread-race-challenges/per-thread-array-join-counter-race.i [2023-11-21 22:20:08,849 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/data/44d920ffe/9ffcdcc0dafd4f1bb67de38e89f91488/FLAG69c0cd614 [2023-11-21 22:20:08,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/data/44d920ffe/9ffcdcc0dafd4f1bb67de38e89f91488 [2023-11-21 22:20:08,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:20:08,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:20:08,888 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:08,888 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:20:08,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:20:08,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:08" (1/1) ... [2023-11-21 22:20:08,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f67beb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:08, skipping insertion in model container [2023-11-21 22:20:08,897 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:08" (1/1) ... [2023-11-21 22:20:08,951 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:20:09,223 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:20:09,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:09,647 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:20:09,679 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:20:09,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:20:09,831 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:20:09,840 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:20:09,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09 WrapperNode [2023-11-21 22:20:09,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:20:09,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:09,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:20:09,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:20:09,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ... [2023-11-21 22:20:09,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ... [2023-11-21 22:20:09,983 INFO L138 Inliner]: procedures = 272, calls = 46, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 150 [2023-11-21 22:20:09,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:20:09,985 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:20:09,985 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:20:09,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:20:09,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ... [2023-11-21 22:20:09,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ... [2023-11-21 22:20:10,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ... [2023-11-21 22:20:10,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ... [2023-11-21 22:20:10,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ... [2023-11-21 22:20:10,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ... [2023-11-21 22:20:10,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ... [2023-11-21 22:20:10,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ... [2023-11-21 22:20:10,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:20:10,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:20:10,048 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:20:10,048 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:20:10,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ... [2023-11-21 22:20:10,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:20:10,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:20:10,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:20:10,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfce06d4-fe7d-44c6-b142-b219fa622278/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:20:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:20:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:20:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:20:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:20:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:20:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:20:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:20:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:20:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:20:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:20:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:20:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure cleaner [2023-11-21 22:20:10,156 INFO L138 BoogieDeclarations]: Found implementation of procedure cleaner [2023-11-21 22:20:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:20:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-21 22:20:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-21 22:20:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:20:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:20:10,159 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:20:10,344 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:20:10,347 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:20:10,916 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:20:10,952 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:20:10,952 INFO L308 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-21 22:20:10,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:10 BoogieIcfgContainer [2023-11-21 22:20:10,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:20:10,957 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:20:10,957 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:20:10,960 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:20:10,961 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:20:08" (1/3) ... [2023-11-21 22:20:10,961 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3f0148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:10, skipping insertion in model container [2023-11-21 22:20:10,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (2/3) ... [2023-11-21 22:20:10,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d3f0148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:10, skipping insertion in model container [2023-11-21 22:20:10,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:10" (3/3) ... [2023-11-21 22:20:10,964 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-array-join-counter-race.i [2023-11-21 22:20:10,973 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:20:10,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:20:10,985 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2023-11-21 22:20:10,985 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:20:11,123 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:20:11,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 377 places, 386 transitions, 786 flow [2023-11-21 22:20:11,545 INFO L124 PetriNetUnfolderBase]: 21/510 cut-off events. [2023-11-21 22:20:11,546 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:20:11,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 521 conditions, 510 events. 21/510 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 1144 event pairs, 0 based on Foata normal form. 0/428 useless extension candidates. Maximal degree in co-relation 409. Up to 6 conditions per place. [2023-11-21 22:20:11,563 INFO L82 GeneralOperation]: Start removeDead. Operand has 377 places, 386 transitions, 786 flow [2023-11-21 22:20:11,575 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 296 places, 301 transitions, 612 flow [2023-11-21 22:20:11,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:20:11,597 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;@143519a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:20:11,597 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2023-11-21 22:20:11,602 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:20:11,602 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2023-11-21 22:20:11,602 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:20:11,603 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:11,603 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] [2023-11-21 22:20:11,604 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:20:11,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:11,610 INFO L85 PathProgramCache]: Analyzing trace with hash -872735151, now seen corresponding path program 1 times [2023-11-21 22:20:11,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:11,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542696387] [2023-11-21 22:20:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:11,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:11,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:11,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:11,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542696387] [2023-11-21 22:20:11,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542696387] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:11,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:11,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:11,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340551793] [2023-11-21 22:20:11,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:11,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:11,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:11,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:11,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:12,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 386 [2023-11-21 22:20:12,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 301 transitions, 612 flow. Second operand has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:12,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:12,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 386 [2023-11-21 22:20:12,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:12,533 INFO L124 PetriNetUnfolderBase]: 132/1593 cut-off events. [2023-11-21 22:20:12,534 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-21 22:20:12,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1828 conditions, 1593 events. 132/1593 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 9355 event pairs, 93 based on Foata normal form. 67/1422 useless extension candidates. Maximal degree in co-relation 1707. Up to 215 conditions per place. [2023-11-21 22:20:12,555 INFO L140 encePairwiseOnDemand]: 376/386 looper letters, 20 selfloop transitions, 2 changer transitions 1/291 dead transitions. [2023-11-21 22:20:12,556 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 291 transitions, 636 flow [2023-11-21 22:20:12,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:12,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:12,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1077 transitions. [2023-11-21 22:20:12,580 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9300518134715026 [2023-11-21 22:20:12,581 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1077 transitions. [2023-11-21 22:20:12,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1077 transitions. [2023-11-21 22:20:12,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:12,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1077 transitions. [2023-11-21 22:20:12,596 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 359.0) internal successors, (1077), 3 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:12,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 386.0) internal successors, (1544), 4 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:12,608 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 386.0) internal successors, (1544), 4 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:12,610 INFO L175 Difference]: Start difference. First operand has 296 places, 301 transitions, 612 flow. Second operand 3 states and 1077 transitions. [2023-11-21 22:20:12,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 291 transitions, 636 flow [2023-11-21 22:20:12,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 291 transitions, 635 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:20:12,626 INFO L231 Difference]: Finished difference. Result has 293 places, 290 transitions, 593 flow [2023-11-21 22:20:12,629 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=591, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=291, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=593, PETRI_PLACES=293, PETRI_TRANSITIONS=290} [2023-11-21 22:20:12,635 INFO L281 CegarLoopForPetriNet]: 296 programPoint places, -3 predicate places. [2023-11-21 22:20:12,636 INFO L495 AbstractCegarLoop]: Abstraction has has 293 places, 290 transitions, 593 flow [2023-11-21 22:20:12,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:12,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:12,637 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] [2023-11-21 22:20:12,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:20:12,638 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:20:12,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:12,639 INFO L85 PathProgramCache]: Analyzing trace with hash 47458957, now seen corresponding path program 1 times [2023-11-21 22:20:12,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:12,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346703795] [2023-11-21 22:20:12,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:12,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:12,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:12,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:12,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346703795] [2023-11-21 22:20:12,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346703795] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:12,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:12,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:12,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609417780] [2023-11-21 22:20:12,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:12,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:12,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:12,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:12,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:12,786 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 386 [2023-11-21 22:20:12,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 290 transitions, 593 flow. Second operand has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:12,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:12,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 386 [2023-11-21 22:20:12,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:13,319 INFO L124 PetriNetUnfolderBase]: 160/1819 cut-off events. [2023-11-21 22:20:13,320 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2023-11-21 22:20:13,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2104 conditions, 1819 events. 160/1819 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 11411 event pairs, 118 based on Foata normal form. 0/1576 useless extension candidates. Maximal degree in co-relation 2068. Up to 261 conditions per place. [2023-11-21 22:20:13,346 INFO L140 encePairwiseOnDemand]: 378/386 looper letters, 23 selfloop transitions, 1 changer transitions 0/283 dead transitions. [2023-11-21 22:20:13,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 283 transitions, 627 flow [2023-11-21 22:20:13,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:13,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:13,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1048 transitions. [2023-11-21 22:20:13,350 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9050086355785838 [2023-11-21 22:20:13,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1048 transitions. [2023-11-21 22:20:13,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1048 transitions. [2023-11-21 22:20:13,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:13,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1048 transitions. [2023-11-21 22:20:13,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 349.3333333333333) internal successors, (1048), 3 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:13,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 386.0) internal successors, (1544), 4 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:13,360 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 386.0) internal successors, (1544), 4 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:13,361 INFO L175 Difference]: Start difference. First operand has 293 places, 290 transitions, 593 flow. Second operand 3 states and 1048 transitions. [2023-11-21 22:20:13,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 283 transitions, 627 flow [2023-11-21 22:20:13,364 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 283 transitions, 623 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:20:13,369 INFO L231 Difference]: Finished difference. Result has 285 places, 283 transitions, 577 flow [2023-11-21 22:20:13,370 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=575, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=282, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=577, PETRI_PLACES=285, PETRI_TRANSITIONS=283} [2023-11-21 22:20:13,371 INFO L281 CegarLoopForPetriNet]: 296 programPoint places, -11 predicate places. [2023-11-21 22:20:13,372 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 283 transitions, 577 flow [2023-11-21 22:20:13,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.0) internal successors, (1020), 3 states have internal predecessors, (1020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:13,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:13,373 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] [2023-11-21 22:20:13,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:20:13,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:20:13,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:13,374 INFO L85 PathProgramCache]: Analyzing trace with hash 464917994, now seen corresponding path program 1 times [2023-11-21 22:20:13,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:13,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685150390] [2023-11-21 22:20:13,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:13,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:14,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:14,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:14,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685150390] [2023-11-21 22:20:14,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685150390] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:14,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:14,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:14,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037721627] [2023-11-21 22:20:14,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:14,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:20:14,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:14,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:20:14,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:20:14,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 288 out of 386 [2023-11-21 22:20:14,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 283 transitions, 577 flow. Second operand has 6 states, 6 states have (on average 289.3333333333333) internal successors, (1736), 6 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:14,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:14,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 288 of 386 [2023-11-21 22:20:14,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:19,539 INFO L124 PetriNetUnfolderBase]: 7533/20713 cut-off events. [2023-11-21 22:20:19,539 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2023-11-21 22:20:19,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32409 conditions, 20713 events. 7533/20713 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 707. Compared 213472 event pairs, 7059 based on Foata normal form. 0/18569 useless extension candidates. Maximal degree in co-relation 32372. Up to 11627 conditions per place. [2023-11-21 22:20:19,756 INFO L140 encePairwiseOnDemand]: 380/386 looper letters, 60 selfloop transitions, 5 changer transitions 0/282 dead transitions. [2023-11-21 22:20:19,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 282 transitions, 705 flow [2023-11-21 22:20:19,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:19,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:20:19,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1794 transitions. [2023-11-21 22:20:19,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7746113989637305 [2023-11-21 22:20:19,766 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1794 transitions. [2023-11-21 22:20:19,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1794 transitions. [2023-11-21 22:20:19,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:19,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1794 transitions. [2023-11-21 22:20:19,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 299.0) internal successors, (1794), 6 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:19,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 386.0) internal successors, (2702), 7 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:19,785 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 386.0) internal successors, (2702), 7 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:19,785 INFO L175 Difference]: Start difference. First operand has 285 places, 283 transitions, 577 flow. Second operand 6 states and 1794 transitions. [2023-11-21 22:20:19,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 282 transitions, 705 flow [2023-11-21 22:20:19,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 282 transitions, 704 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:20:19,883 INFO L231 Difference]: Finished difference. Result has 288 places, 282 transitions, 584 flow [2023-11-21 22:20:19,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=584, PETRI_PLACES=288, PETRI_TRANSITIONS=282} [2023-11-21 22:20:19,885 INFO L281 CegarLoopForPetriNet]: 296 programPoint places, -8 predicate places. [2023-11-21 22:20:19,885 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 282 transitions, 584 flow [2023-11-21 22:20:19,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 289.3333333333333) internal successors, (1736), 6 states have internal predecessors, (1736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:19,886 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:19,888 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] [2023-11-21 22:20:19,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:20:19,889 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:20:19,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:19,890 INFO L85 PathProgramCache]: Analyzing trace with hash 771686824, now seen corresponding path program 1 times [2023-11-21 22:20:19,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:19,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458390488] [2023-11-21 22:20:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:19,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:19,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:19,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458390488] [2023-11-21 22:20:19,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458390488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:19,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:19,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:19,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128929917] [2023-11-21 22:20:19,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:19,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:19,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:19,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:19,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:19,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 386 [2023-11-21 22:20:19,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 282 transitions, 584 flow. Second operand has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:19,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:19,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 386 [2023-11-21 22:20:19,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:20,301 INFO L124 PetriNetUnfolderBase]: 132/1421 cut-off events. [2023-11-21 22:20:20,302 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-21 22:20:20,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1659 conditions, 1421 events. 132/1421 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8016 event pairs, 83 based on Foata normal form. 0/1228 useless extension candidates. Maximal degree in co-relation 1623. Up to 205 conditions per place. [2023-11-21 22:20:20,320 INFO L140 encePairwiseOnDemand]: 383/386 looper letters, 16 selfloop transitions, 2 changer transitions 0/281 dead transitions. [2023-11-21 22:20:20,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 281 transitions, 618 flow [2023-11-21 22:20:20,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:20,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:20,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1075 transitions. [2023-11-21 22:20:20,324 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9283246977547496 [2023-11-21 22:20:20,324 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1075 transitions. [2023-11-21 22:20:20,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1075 transitions. [2023-11-21 22:20:20,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:20,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1075 transitions. [2023-11-21 22:20:20,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 358.3333333333333) internal successors, (1075), 3 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:20,332 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 386.0) internal successors, (1544), 4 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:20,334 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 386.0) internal successors, (1544), 4 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:20,334 INFO L175 Difference]: Start difference. First operand has 288 places, 282 transitions, 584 flow. Second operand 3 states and 1075 transitions. [2023-11-21 22:20:20,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 281 transitions, 618 flow [2023-11-21 22:20:20,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 281 transitions, 608 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:20:20,341 INFO L231 Difference]: Finished difference. Result has 284 places, 281 transitions, 576 flow [2023-11-21 22:20:20,342 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=576, PETRI_PLACES=284, PETRI_TRANSITIONS=281} [2023-11-21 22:20:20,342 INFO L281 CegarLoopForPetriNet]: 296 programPoint places, -12 predicate places. [2023-11-21 22:20:20,343 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 281 transitions, 576 flow [2023-11-21 22:20:20,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 353.3333333333333) internal successors, (1060), 3 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:20,344 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:20,344 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] [2023-11-21 22:20:20,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:20:20,345 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:20:20,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:20,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1775765439, now seen corresponding path program 1 times [2023-11-21 22:20:20,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:20,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240320509] [2023-11-21 22:20:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:20,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:21,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:21,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:21,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240320509] [2023-11-21 22:20:21,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240320509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:21,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:21,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:21,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240464326] [2023-11-21 22:20:21,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:21,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:20:21,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:21,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:20:21,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:20:21,547 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 386 [2023-11-21 22:20:21,550 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 281 transitions, 576 flow. Second operand has 6 states, 6 states have (on average 287.0) internal successors, (1722), 6 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:21,550 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:21,550 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 386 [2023-11-21 22:20:21,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:25,464 INFO L124 PetriNetUnfolderBase]: 7250/18903 cut-off events. [2023-11-21 22:20:25,465 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2023-11-21 22:20:25,528 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30270 conditions, 18903 events. 7250/18903 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 190437 event pairs, 6967 based on Foata normal form. 0/17465 useless extension candidates. Maximal degree in co-relation 30233. Up to 11296 conditions per place. [2023-11-21 22:20:25,636 INFO L140 encePairwiseOnDemand]: 380/386 looper letters, 62 selfloop transitions, 5 changer transitions 0/280 dead transitions. [2023-11-21 22:20:25,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 280 transitions, 708 flow [2023-11-21 22:20:25,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:25,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:20:25,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1778 transitions. [2023-11-21 22:20:25,643 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7677029360967185 [2023-11-21 22:20:25,643 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1778 transitions. [2023-11-21 22:20:25,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1778 transitions. [2023-11-21 22:20:25,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:25,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1778 transitions. [2023-11-21 22:20:25,651 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 296.3333333333333) internal successors, (1778), 6 states have internal predecessors, (1778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:25,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 386.0) internal successors, (2702), 7 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:25,661 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 386.0) internal successors, (2702), 7 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:25,661 INFO L175 Difference]: Start difference. First operand has 284 places, 281 transitions, 576 flow. Second operand 6 states and 1778 transitions. [2023-11-21 22:20:25,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 280 transitions, 708 flow [2023-11-21 22:20:25,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 280 transitions, 704 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:20:25,670 INFO L231 Difference]: Finished difference. Result has 286 places, 280 transitions, 580 flow [2023-11-21 22:20:25,670 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=286, PETRI_TRANSITIONS=280} [2023-11-21 22:20:25,673 INFO L281 CegarLoopForPetriNet]: 296 programPoint places, -10 predicate places. [2023-11-21 22:20:25,673 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 280 transitions, 580 flow [2023-11-21 22:20:25,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 287.0) internal successors, (1722), 6 states have internal predecessors, (1722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:25,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:25,675 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] [2023-11-21 22:20:25,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:20:25,676 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:20:25,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:25,678 INFO L85 PathProgramCache]: Analyzing trace with hash 749926230, now seen corresponding path program 1 times [2023-11-21 22:20:25,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:25,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986337281] [2023-11-21 22:20:25,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:25,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:26,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:26,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:26,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986337281] [2023-11-21 22:20:26,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986337281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:26,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:26,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:26,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270381348] [2023-11-21 22:20:26,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:26,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:20:26,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:26,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:20:26,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:20:27,218 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 309 out of 386 [2023-11-21 22:20:27,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 280 transitions, 580 flow. Second operand has 6 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:27,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:27,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 309 of 386 [2023-11-21 22:20:27,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:28,090 INFO L124 PetriNetUnfolderBase]: 434/2363 cut-off events. [2023-11-21 22:20:28,090 INFO L125 PetriNetUnfolderBase]: For 37/40 co-relation queries the response was YES. [2023-11-21 22:20:28,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3332 conditions, 2363 events. 434/2363 cut-off events. For 37/40 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 14496 event pairs, 66 based on Foata normal form. 0/2122 useless extension candidates. Maximal degree in co-relation 3296. Up to 559 conditions per place. [2023-11-21 22:20:28,138 INFO L140 encePairwiseOnDemand]: 355/386 looper letters, 139 selfloop transitions, 44 changer transitions 0/412 dead transitions. [2023-11-21 22:20:28,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 412 transitions, 1224 flow [2023-11-21 22:20:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:28,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:20:28,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2042 transitions. [2023-11-21 22:20:28,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8816925734024179 [2023-11-21 22:20:28,147 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2042 transitions. [2023-11-21 22:20:28,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2042 transitions. [2023-11-21 22:20:28,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:28,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2042 transitions. [2023-11-21 22:20:28,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 340.3333333333333) internal successors, (2042), 6 states have internal predecessors, (2042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:28,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 386.0) internal successors, (2702), 7 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:28,166 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 386.0) internal successors, (2702), 7 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:28,167 INFO L175 Difference]: Start difference. First operand has 286 places, 280 transitions, 580 flow. Second operand 6 states and 2042 transitions. [2023-11-21 22:20:28,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 412 transitions, 1224 flow [2023-11-21 22:20:28,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 412 transitions, 1214 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:20:28,179 INFO L231 Difference]: Finished difference. Result has 290 places, 323 transitions, 892 flow [2023-11-21 22:20:28,180 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=568, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=892, PETRI_PLACES=290, PETRI_TRANSITIONS=323} [2023-11-21 22:20:28,181 INFO L281 CegarLoopForPetriNet]: 296 programPoint places, -6 predicate places. [2023-11-21 22:20:28,181 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 323 transitions, 892 flow [2023-11-21 22:20:28,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 311.5) internal successors, (1869), 6 states have internal predecessors, (1869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:28,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:28,183 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] [2023-11-21 22:20:28,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:20:28,184 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:20:28,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:28,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1435823479, now seen corresponding path program 1 times [2023-11-21 22:20:28,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:28,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786372078] [2023-11-21 22:20:28,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:28,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:28,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:28,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:28,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786372078] [2023-11-21 22:20:28,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786372078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:28,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:28,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:28,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672459702] [2023-11-21 22:20:28,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:28,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:28,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:28,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:28,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:28,311 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 386 [2023-11-21 22:20:28,313 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 323 transitions, 892 flow. Second operand has 3 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:28,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:28,314 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 386 [2023-11-21 22:20:28,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:30,793 INFO L124 PetriNetUnfolderBase]: 1918/12033 cut-off events. [2023-11-21 22:20:30,793 INFO L125 PetriNetUnfolderBase]: For 483/610 co-relation queries the response was YES. [2023-11-21 22:20:30,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17538 conditions, 12033 events. 1918/12033 cut-off events. For 483/610 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 119264 event pairs, 419 based on Foata normal form. 0/10435 useless extension candidates. Maximal degree in co-relation 17499. Up to 1161 conditions per place. [2023-11-21 22:20:30,914 INFO L140 encePairwiseOnDemand]: 375/386 looper letters, 28 selfloop transitions, 8 changer transitions 0/339 dead transitions. [2023-11-21 22:20:30,914 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 339 transitions, 1002 flow [2023-11-21 22:20:30,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:30,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:30,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1086 transitions. [2023-11-21 22:20:30,918 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9378238341968912 [2023-11-21 22:20:30,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1086 transitions. [2023-11-21 22:20:30,919 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1086 transitions. [2023-11-21 22:20:30,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:30,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1086 transitions. [2023-11-21 22:20:30,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 362.0) internal successors, (1086), 3 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:30,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 386.0) internal successors, (1544), 4 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:30,927 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 386.0) internal successors, (1544), 4 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:30,928 INFO L175 Difference]: Start difference. First operand has 290 places, 323 transitions, 892 flow. Second operand 3 states and 1086 transitions. [2023-11-21 22:20:30,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 339 transitions, 1002 flow [2023-11-21 22:20:30,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 339 transitions, 1002 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:20:30,939 INFO L231 Difference]: Finished difference. Result has 294 places, 331 transitions, 962 flow [2023-11-21 22:20:30,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=892, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=962, PETRI_PLACES=294, PETRI_TRANSITIONS=331} [2023-11-21 22:20:30,941 INFO L281 CegarLoopForPetriNet]: 296 programPoint places, -2 predicate places. [2023-11-21 22:20:30,941 INFO L495 AbstractCegarLoop]: Abstraction has has 294 places, 331 transitions, 962 flow [2023-11-21 22:20:30,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 350.0) internal successors, (1050), 3 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:30,942 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:30,942 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] [2023-11-21 22:20:30,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:20:30,942 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:20:30,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:30,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1741103411, now seen corresponding path program 1 times [2023-11-21 22:20:30,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:30,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111339021] [2023-11-21 22:20:30,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:30,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:31,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:31,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:31,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111339021] [2023-11-21 22:20:31,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111339021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:31,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:31,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:31,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717778454] [2023-11-21 22:20:31,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:31,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:20:31,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:31,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:20:31,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:20:31,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 386 [2023-11-21 22:20:31,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 331 transitions, 962 flow. Second operand has 5 states, 5 states have (on average 353.8) internal successors, (1769), 5 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:31,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:31,277 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 386 [2023-11-21 22:20:31,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:34,411 INFO L124 PetriNetUnfolderBase]: 1850/13753 cut-off events. [2023-11-21 22:20:34,411 INFO L125 PetriNetUnfolderBase]: For 857/1073 co-relation queries the response was YES. [2023-11-21 22:20:34,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20826 conditions, 13753 events. 1850/13753 cut-off events. For 857/1073 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 147808 event pairs, 576 based on Foata normal form. 3/12166 useless extension candidates. Maximal degree in co-relation 20782. Up to 1096 conditions per place. [2023-11-21 22:20:34,522 INFO L140 encePairwiseOnDemand]: 377/386 looper letters, 24 selfloop transitions, 8 changer transitions 0/342 dead transitions. [2023-11-21 22:20:34,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 342 transitions, 1050 flow [2023-11-21 22:20:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:20:34,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2145 transitions. [2023-11-21 22:20:34,534 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9261658031088082 [2023-11-21 22:20:34,534 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2145 transitions. [2023-11-21 22:20:34,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2145 transitions. [2023-11-21 22:20:34,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:34,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2145 transitions. [2023-11-21 22:20:34,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 357.5) internal successors, (2145), 6 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:34,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 386.0) internal successors, (2702), 7 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:34,568 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 386.0) internal successors, (2702), 7 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:34,571 INFO L175 Difference]: Start difference. First operand has 294 places, 331 transitions, 962 flow. Second operand 6 states and 2145 transitions. [2023-11-21 22:20:34,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 342 transitions, 1050 flow [2023-11-21 22:20:34,577 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 342 transitions, 1034 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:20:34,585 INFO L231 Difference]: Finished difference. Result has 301 places, 336 transitions, 996 flow [2023-11-21 22:20:34,586 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=996, PETRI_PLACES=301, PETRI_TRANSITIONS=336} [2023-11-21 22:20:34,588 INFO L281 CegarLoopForPetriNet]: 296 programPoint places, 5 predicate places. [2023-11-21 22:20:34,589 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 336 transitions, 996 flow [2023-11-21 22:20:34,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 353.8) internal successors, (1769), 5 states have internal predecessors, (1769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:34,590 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:34,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:20:34,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:20:34,591 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:20:34,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:34,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1363921289, now seen corresponding path program 1 times [2023-11-21 22:20:34,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:34,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202884441] [2023-11-21 22:20:34,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:34,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:34,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:35,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:35,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202884441] [2023-11-21 22:20:35,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202884441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:35,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:35,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:20:35,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653060258] [2023-11-21 22:20:35,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:35,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:20:35,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:35,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:20:35,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:20:36,041 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 386 [2023-11-21 22:20:36,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 336 transitions, 996 flow. Second operand has 6 states, 6 states have (on average 329.6666666666667) internal successors, (1978), 6 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:36,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:36,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 386 [2023-11-21 22:20:36,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:46,135 INFO L124 PetriNetUnfolderBase]: 10762/48902 cut-off events. [2023-11-21 22:20:46,135 INFO L125 PetriNetUnfolderBase]: For 5350/6248 co-relation queries the response was YES. [2023-11-21 22:20:46,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79807 conditions, 48902 events. 10762/48902 cut-off events. For 5350/6248 co-relation queries the response was YES. Maximal size of possible extension queue 773. Compared 641265 event pairs, 1504 based on Foata normal form. 13/43253 useless extension candidates. Maximal degree in co-relation 79758. Up to 5544 conditions per place. [2023-11-21 22:20:46,561 INFO L140 encePairwiseOnDemand]: 366/386 looper letters, 124 selfloop transitions, 64 changer transitions 0/477 dead transitions. [2023-11-21 22:20:46,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 477 transitions, 1822 flow [2023-11-21 22:20:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:20:46,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:20:46,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2113 transitions. [2023-11-21 22:20:46,569 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9123488773747841 [2023-11-21 22:20:46,569 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2113 transitions. [2023-11-21 22:20:46,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2113 transitions. [2023-11-21 22:20:46,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:46,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2113 transitions. [2023-11-21 22:20:46,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 352.1666666666667) internal successors, (2113), 6 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:46,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 386.0) internal successors, (2702), 7 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:46,584 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 386.0) internal successors, (2702), 7 states have internal predecessors, (2702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:46,584 INFO L175 Difference]: Start difference. First operand has 301 places, 336 transitions, 996 flow. Second operand 6 states and 2113 transitions. [2023-11-21 22:20:46,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 477 transitions, 1822 flow [2023-11-21 22:20:46,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 477 transitions, 1818 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:20:46,603 INFO L231 Difference]: Finished difference. Result has 310 places, 400 transitions, 1576 flow [2023-11-21 22:20:46,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1576, PETRI_PLACES=310, PETRI_TRANSITIONS=400} [2023-11-21 22:20:46,606 INFO L281 CegarLoopForPetriNet]: 296 programPoint places, 14 predicate places. [2023-11-21 22:20:46,606 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 400 transitions, 1576 flow [2023-11-21 22:20:46,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.6666666666667) internal successors, (1978), 6 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:46,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:46,607 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] [2023-11-21 22:20:46,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:20:46,608 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting cleanerErr2ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:20:46,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:46,608 INFO L85 PathProgramCache]: Analyzing trace with hash -317350275, now seen corresponding path program 1 times [2023-11-21 22:20:46,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:46,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965256203] [2023-11-21 22:20:46,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:46,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:46,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:46,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965256203] [2023-11-21 22:20:46,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965256203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:46,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:46,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:46,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669082837] [2023-11-21 22:20:46,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:46,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:46,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:46,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:46,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:46,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 348 out of 386 [2023-11-21 22:20:46,715 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 400 transitions, 1576 flow. Second operand has 3 states, 3 states have (on average 349.6666666666667) internal successors, (1049), 3 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:46,715 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:46,716 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 348 of 386 [2023-11-21 22:20:46,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:20:55,085 INFO L124 PetriNetUnfolderBase]: 5554/37100 cut-off events. [2023-11-21 22:20:55,085 INFO L125 PetriNetUnfolderBase]: For 8760/10273 co-relation queries the response was YES. [2023-11-21 22:20:55,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64670 conditions, 37100 events. 5554/37100 cut-off events. For 8760/10273 co-relation queries the response was YES. Maximal size of possible extension queue 732. Compared 500667 event pairs, 1046 based on Foata normal form. 52/33503 useless extension candidates. Maximal degree in co-relation 64619. Up to 2981 conditions per place. [2023-11-21 22:20:55,514 INFO L140 encePairwiseOnDemand]: 381/386 looper letters, 21 selfloop transitions, 2 changer transitions 0/404 dead transitions. [2023-11-21 22:20:55,515 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 404 transitions, 1633 flow [2023-11-21 22:20:55,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:20:55,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:20:55,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1070 transitions. [2023-11-21 22:20:55,520 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.924006908462867 [2023-11-21 22:20:55,520 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1070 transitions. [2023-11-21 22:20:55,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1070 transitions. [2023-11-21 22:20:55,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:20:55,522 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1070 transitions. [2023-11-21 22:20:55,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 356.6666666666667) internal successors, (1070), 3 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:55,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 386.0) internal successors, (1544), 4 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:55,530 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 386.0) internal successors, (1544), 4 states have internal predecessors, (1544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:55,530 INFO L175 Difference]: Start difference. First operand has 310 places, 400 transitions, 1576 flow. Second operand 3 states and 1070 transitions. [2023-11-21 22:20:55,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 404 transitions, 1633 flow [2023-11-21 22:20:55,546 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 404 transitions, 1633 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:20:55,553 INFO L231 Difference]: Finished difference. Result has 310 places, 399 transitions, 1584 flow [2023-11-21 22:20:55,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=386, PETRI_DIFFERENCE_MINUEND_FLOW=1570, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1584, PETRI_PLACES=310, PETRI_TRANSITIONS=399} [2023-11-21 22:20:55,555 INFO L281 CegarLoopForPetriNet]: 296 programPoint places, 14 predicate places. [2023-11-21 22:20:55,555 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 399 transitions, 1584 flow [2023-11-21 22:20:55,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 349.6666666666667) internal successors, (1049), 3 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:55,556 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:20:55,556 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] [2023-11-21 22:20:55,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:20:55,556 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [cleanerErr0ASSERT_VIOLATIONDATA_RACE, cleanerErr1ASSERT_VIOLATIONDATA_RACE, cleanerErr2ASSERT_VIOLATIONDATA_RACE, cleanerErr3ASSERT_VIOLATIONDATA_RACE (and 47 more)] === [2023-11-21 22:20:55,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:20:55,557 INFO L85 PathProgramCache]: Analyzing trace with hash -860322447, now seen corresponding path program 1 times [2023-11-21 22:20:55,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:20:55,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006178405] [2023-11-21 22:20:55,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:20:55,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:20:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:20:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:20:55,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:20:55,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006178405] [2023-11-21 22:20:55,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006178405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:20:55,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:20:55,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:20:55,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590512127] [2023-11-21 22:20:55,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:20:55,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:20:55,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:20:55,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:20:55,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:20:55,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 360 out of 386 [2023-11-21 22:20:55,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 399 transitions, 1584 flow. Second operand has 3 states, 3 states have (on average 361.0) internal successors, (1083), 3 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:20:55,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:20:55,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 360 of 386 [2023-11-21 22:20:55,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand