./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl --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 ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:15:39,724 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:15:39,832 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:15:39,838 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:15:39,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:15:39,887 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:15:39,887 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:15:39,888 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:15:39,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:15:39,895 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:15:39,896 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:15:39,897 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:15:39,897 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:15:39,899 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:15:39,900 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:15:39,900 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:15:39,901 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:15:39,901 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:15:39,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:15:39,902 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:15:39,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:15:39,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:15:39,904 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:15:39,906 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:15:39,906 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:15:39,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:15:39,907 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:15:39,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:15:39,909 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:15:39,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:15:39,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:39,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:15:39,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:15:39,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:15:39,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:15:39,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:15:39,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:15:39,913 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:15:39,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:15:39,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:15:39,914 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:15:39,914 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_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0ecaab9c4a4889914d1343f60808acf6ec66df89812b70cea6837a39471f7f [2023-11-12 02:15:40,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:15:40,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:15:40,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:15:40,284 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:15:40,284 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:15:40,286 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread/singleton.i [2023-11-12 02:15:43,489 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:15:43,880 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:15:43,881 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/sv-benchmarks/c/pthread/singleton.i [2023-11-12 02:15:43,915 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/data/d056131d9/821a48a99c774dd29fdaa76b68ae0b97/FLAGde2b96069 [2023-11-12 02:15:43,931 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/data/d056131d9/821a48a99c774dd29fdaa76b68ae0b97 [2023-11-12 02:15:43,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:15:43,936 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:15:43,939 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:43,940 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:15:43,945 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:15:43,946 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:43" (1/1) ... [2023-11-12 02:15:43,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ba7f1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:43, skipping insertion in model container [2023-11-12 02:15:43,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:15:43" (1/1) ... [2023-11-12 02:15:44,020 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:15:44,333 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:15:44,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:44,817 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:15:44,850 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 02:15:44,899 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:15:44,987 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:44,988 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:44,988 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:15:44,996 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:15:44,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44 WrapperNode [2023-11-12 02:15:44,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:15:44,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:44,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:15:44,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:15:45,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (1/1) ... [2023-11-12 02:15:45,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (1/1) ... [2023-11-12 02:15:45,093 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2023-11-12 02:15:45,094 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:15:45,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:15:45,095 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:15:45,095 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:15:45,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (1/1) ... [2023-11-12 02:15:45,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (1/1) ... [2023-11-12 02:15:45,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (1/1) ... [2023-11-12 02:15:45,127 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (1/1) ... [2023-11-12 02:15:45,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (1/1) ... [2023-11-12 02:15:45,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (1/1) ... [2023-11-12 02:15:45,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (1/1) ... [2023-11-12 02:15:45,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (1/1) ... [2023-11-12 02:15:45,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:15:45,181 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:15:45,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:15:45,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:15:45,182 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (1/1) ... [2023-11-12 02:15:45,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:15:45,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:15:45,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:15:45,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba20018a-ad02-4ce2-890b-c1b5673f1562/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:15:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 02:15:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:15:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:15:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 02:15:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:15:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2023-11-12 02:15:45,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2023-11-12 02:15:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 02:15:45,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 02:15:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 02:15:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 02:15:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 02:15:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 02:15:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:15:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:15:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:15:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:15:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:15:45,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:15:45,289 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:15:45,453 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:15:45,456 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:15:45,897 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:15:45,986 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:15:45,996 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:15:46,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:46 BoogieIcfgContainer [2023-11-12 02:15:46,002 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:15:46,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:15:46,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:15:46,015 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:15:46,027 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:15:43" (1/3) ... [2023-11-12 02:15:46,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356ae0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:46, skipping insertion in model container [2023-11-12 02:15:46,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:15:44" (2/3) ... [2023-11-12 02:15:46,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356ae0b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:15:46, skipping insertion in model container [2023-11-12 02:15:46,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:15:46" (3/3) ... [2023-11-12 02:15:46,030 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton.i [2023-11-12 02:15:46,052 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:15:46,063 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:15:46,063 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-12 02:15:46,064 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:15:46,241 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2023-11-12 02:15:46,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 282 places, 273 transitions, 643 flow [2023-11-12 02:15:46,378 INFO L124 PetriNetUnfolderBase]: 7/186 cut-off events. [2023-11-12 02:15:46,378 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:15:46,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 186 events. 7/186 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 133 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2023-11-12 02:15:46,386 INFO L82 GeneralOperation]: Start removeDead. Operand has 282 places, 273 transitions, 643 flow [2023-11-12 02:15:46,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 178 places, 164 transitions, 379 flow [2023-11-12 02:15:46,397 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:15:46,411 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 178 places, 164 transitions, 379 flow [2023-11-12 02:15:46,419 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 178 places, 164 transitions, 379 flow [2023-11-12 02:15:46,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 178 places, 164 transitions, 379 flow [2023-11-12 02:15:46,493 INFO L124 PetriNetUnfolderBase]: 5/164 cut-off events. [2023-11-12 02:15:46,493 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-12 02:15:46,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 164 events. 5/164 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 112 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2023-11-12 02:15:46,501 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2023-11-12 02:15:50,579 INFO L134 LiptonReduction]: Checked pairs total: 20174 [2023-11-12 02:15:50,579 INFO L136 LiptonReduction]: Total number of compositions: 90 [2023-11-12 02:15:50,595 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:15:50,602 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;@6ece1266, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:15:50,602 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-11-12 02:15:50,606 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:15:50,606 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2023-11-12 02:15:50,606 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:15:50,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:15:50,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:15:50,608 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:15:50,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:50,613 INFO L85 PathProgramCache]: Analyzing trace with hash 634850494, now seen corresponding path program 1 times [2023-11-12 02:15:50,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:50,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174311466] [2023-11-12 02:15:50,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:50,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:50,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:50,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174311466] [2023-11-12 02:15:50,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174311466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:50,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:50,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:15:50,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982611259] [2023-11-12 02:15:50,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:50,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:15:50,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:50,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:15:50,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:15:50,921 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 365 [2023-11-12 02:15:50,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 86 transitions, 223 flow. Second operand has 2 states, 2 states have (on average 231.5) internal successors, (463), 2 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:50,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:15:50,925 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 365 [2023-11-12 02:15:50,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:15:51,180 INFO L124 PetriNetUnfolderBase]: 317/939 cut-off events. [2023-11-12 02:15:51,180 INFO L125 PetriNetUnfolderBase]: For 112/112 co-relation queries the response was YES. [2023-11-12 02:15:51,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1565 conditions, 939 events. 317/939 cut-off events. For 112/112 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4658 event pairs, 285 based on Foata normal form. 1/842 useless extension candidates. Maximal degree in co-relation 1548. Up to 488 conditions per place. [2023-11-12 02:15:51,199 INFO L140 encePairwiseOnDemand]: 354/365 looper letters, 31 selfloop transitions, 0 changer transitions 1/75 dead transitions. [2023-11-12 02:15:51,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 75 transitions, 265 flow [2023-11-12 02:15:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:15:51,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:15:51,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 501 transitions. [2023-11-12 02:15:51,221 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6863013698630137 [2023-11-12 02:15:51,222 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 501 transitions. [2023-11-12 02:15:51,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 501 transitions. [2023-11-12 02:15:51,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:15:51,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 501 transitions. [2023-11-12 02:15:51,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 250.5) internal successors, (501), 2 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:51,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 365.0) internal successors, (1095), 3 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:51,244 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 365.0) internal successors, (1095), 3 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:51,246 INFO L175 Difference]: Start difference. First operand has 100 places, 86 transitions, 223 flow. Second operand 2 states and 501 transitions. [2023-11-12 02:15:51,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 75 transitions, 265 flow [2023-11-12 02:15:51,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 231 flow, removed 0 selfloop flow, removed 12 redundant places. [2023-11-12 02:15:51,259 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 164 flow [2023-11-12 02:15:51,261 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=164, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2023-11-12 02:15:51,266 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -22 predicate places. [2023-11-12 02:15:51,266 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 164 flow [2023-11-12 02:15:51,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 231.5) internal successors, (463), 2 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:51,267 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:15:51,267 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:51,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:15:51,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:15:51,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:51,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1040537196, now seen corresponding path program 1 times [2023-11-12 02:15:51,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:51,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795886797] [2023-11-12 02:15:51,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:51,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:51,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:51,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:51,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795886797] [2023-11-12 02:15:51,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795886797] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:51,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:51,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:15:51,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524400651] [2023-11-12 02:15:51,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:51,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:51,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:51,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:51,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:52,472 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 365 [2023-11-12 02:15:52,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 220.33333333333334) internal successors, (1322), 6 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:52,475 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:15:52,475 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 365 [2023-11-12 02:15:52,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:15:53,567 INFO L124 PetriNetUnfolderBase]: 2227/4882 cut-off events. [2023-11-12 02:15:53,568 INFO L125 PetriNetUnfolderBase]: For 202/202 co-relation queries the response was YES. [2023-11-12 02:15:53,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8288 conditions, 4882 events. 2227/4882 cut-off events. For 202/202 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 33775 event pairs, 890 based on Foata normal form. 0/4359 useless extension candidates. Maximal degree in co-relation 8285. Up to 2312 conditions per place. [2023-11-12 02:15:53,616 INFO L140 encePairwiseOnDemand]: 355/365 looper letters, 120 selfloop transitions, 21 changer transitions 12/190 dead transitions. [2023-11-12 02:15:53,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 190 transitions, 762 flow [2023-11-12 02:15:53,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:15:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:15:53,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1468 transitions. [2023-11-12 02:15:53,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6703196347031963 [2023-11-12 02:15:53,627 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1468 transitions. [2023-11-12 02:15:53,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1468 transitions. [2023-11-12 02:15:53,630 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:15:53,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1468 transitions. [2023-11-12 02:15:53,636 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.66666666666666) internal successors, (1468), 6 states have internal predecessors, (1468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:53,644 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:53,652 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:53,652 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 164 flow. Second operand 6 states and 1468 transitions. [2023-11-12 02:15:53,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 190 transitions, 762 flow [2023-11-12 02:15:53,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 190 transitions, 762 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:15:53,662 INFO L231 Difference]: Finished difference. Result has 87 places, 94 transitions, 306 flow [2023-11-12 02:15:53,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=87, PETRI_TRANSITIONS=94} [2023-11-12 02:15:53,663 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -13 predicate places. [2023-11-12 02:15:53,664 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 94 transitions, 306 flow [2023-11-12 02:15:53,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.33333333333334) internal successors, (1322), 6 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:53,665 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:15:53,666 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:53,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:15:53,666 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:15:53,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:53,668 INFO L85 PathProgramCache]: Analyzing trace with hash 374939323, now seen corresponding path program 1 times [2023-11-12 02:15:53,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:53,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081290611] [2023-11-12 02:15:53,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:53,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:53,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:54,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:54,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081290611] [2023-11-12 02:15:54,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081290611] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:54,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:54,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:15:54,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708949992] [2023-11-12 02:15:54,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:54,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:54,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:54,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:54,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:54,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 365 [2023-11-12 02:15:54,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 222.5) internal successors, (1335), 6 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:54,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:15:54,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 365 [2023-11-12 02:15:54,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:15:55,250 INFO L124 PetriNetUnfolderBase]: 1593/2727 cut-off events. [2023-11-12 02:15:55,250 INFO L125 PetriNetUnfolderBase]: For 1830/2453 co-relation queries the response was YES. [2023-11-12 02:15:55,263 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7488 conditions, 2727 events. 1593/2727 cut-off events. For 1830/2453 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13709 event pairs, 288 based on Foata normal form. 2/2493 useless extension candidates. Maximal degree in co-relation 7480. Up to 1837 conditions per place. [2023-11-12 02:15:55,286 INFO L140 encePairwiseOnDemand]: 356/365 looper letters, 62 selfloop transitions, 24 changer transitions 0/128 dead transitions. [2023-11-12 02:15:55,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 128 transitions, 621 flow [2023-11-12 02:15:55,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:15:55,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:15:55,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1381 transitions. [2023-11-12 02:15:55,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.630593607305936 [2023-11-12 02:15:55,292 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1381 transitions. [2023-11-12 02:15:55,293 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1381 transitions. [2023-11-12 02:15:55,294 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:15:55,294 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1381 transitions. [2023-11-12 02:15:55,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.16666666666666) internal successors, (1381), 6 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:55,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:55,307 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:55,308 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 306 flow. Second operand 6 states and 1381 transitions. [2023-11-12 02:15:55,308 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 128 transitions, 621 flow [2023-11-12 02:15:55,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 128 transitions, 621 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:15:55,329 INFO L231 Difference]: Finished difference. Result has 92 places, 113 transitions, 525 flow [2023-11-12 02:15:55,330 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=525, PETRI_PLACES=92, PETRI_TRANSITIONS=113} [2023-11-12 02:15:55,331 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -8 predicate places. [2023-11-12 02:15:55,332 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 113 transitions, 525 flow [2023-11-12 02:15:55,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 222.5) internal successors, (1335), 6 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:55,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:15:55,333 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] [2023-11-12 02:15:55,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:15:55,340 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:15:55,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:55,341 INFO L85 PathProgramCache]: Analyzing trace with hash -395421732, now seen corresponding path program 1 times [2023-11-12 02:15:55,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:55,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688893204] [2023-11-12 02:15:55,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:55,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:56,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:56,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:56,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688893204] [2023-11-12 02:15:56,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688893204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:56,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:56,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:15:56,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059968392] [2023-11-12 02:15:56,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:56,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:15:56,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:56,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:15:56,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:15:57,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 365 [2023-11-12 02:15:57,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 113 transitions, 525 flow. Second operand has 9 states, 9 states have (on average 218.77777777777777) internal successors, (1969), 9 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:57,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:15:57,260 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 365 [2023-11-12 02:15:57,260 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:15:58,323 INFO L124 PetriNetUnfolderBase]: 2064/3754 cut-off events. [2023-11-12 02:15:58,324 INFO L125 PetriNetUnfolderBase]: For 2722/2874 co-relation queries the response was YES. [2023-11-12 02:15:58,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11322 conditions, 3754 events. 2064/3754 cut-off events. For 2722/2874 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 20123 event pairs, 281 based on Foata normal form. 69/3452 useless extension candidates. Maximal degree in co-relation 11312. Up to 1281 conditions per place. [2023-11-12 02:15:58,367 INFO L140 encePairwiseOnDemand]: 359/365 looper letters, 165 selfloop transitions, 8 changer transitions 16/224 dead transitions. [2023-11-12 02:15:58,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 224 transitions, 1253 flow [2023-11-12 02:15:58,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:15:58,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-12 02:15:58,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1668 transitions. [2023-11-12 02:15:58,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6528375733855186 [2023-11-12 02:15:58,374 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1668 transitions. [2023-11-12 02:15:58,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1668 transitions. [2023-11-12 02:15:58,376 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:15:58,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1668 transitions. [2023-11-12 02:15:58,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 238.28571428571428) internal successors, (1668), 7 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:58,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 365.0) internal successors, (2920), 8 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:58,391 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 365.0) internal successors, (2920), 8 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:58,392 INFO L175 Difference]: Start difference. First operand has 92 places, 113 transitions, 525 flow. Second operand 7 states and 1668 transitions. [2023-11-12 02:15:58,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 224 transitions, 1253 flow [2023-11-12 02:15:58,422 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 224 transitions, 1208 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-12 02:15:58,427 INFO L231 Difference]: Finished difference. Result has 92 places, 108 transitions, 490 flow [2023-11-12 02:15:58,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=490, PETRI_PLACES=92, PETRI_TRANSITIONS=108} [2023-11-12 02:15:58,428 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -8 predicate places. [2023-11-12 02:15:58,429 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 108 transitions, 490 flow [2023-11-12 02:15:58,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 218.77777777777777) internal successors, (1969), 9 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:58,430 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:15:58,430 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:15:58,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:15:58,431 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:15:58,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:15:58,432 INFO L85 PathProgramCache]: Analyzing trace with hash -934336835, now seen corresponding path program 1 times [2023-11-12 02:15:58,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:15:58,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707254224] [2023-11-12 02:15:58,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:15:58,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:15:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:15:58,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:15:58,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:15:58,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707254224] [2023-11-12 02:15:58,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707254224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:15:58,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:15:58,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:15:58,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349022781] [2023-11-12 02:15:58,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:15:58,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:15:58,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:15:58,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:15:58,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:15:59,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 365 [2023-11-12 02:15:59,493 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 108 transitions, 490 flow. Second operand has 6 states, 6 states have (on average 224.5) internal successors, (1347), 6 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:15:59,493 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:15:59,493 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 365 [2023-11-12 02:15:59,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:01,064 INFO L124 PetriNetUnfolderBase]: 6047/9533 cut-off events. [2023-11-12 02:16:01,065 INFO L125 PetriNetUnfolderBase]: For 19972/20570 co-relation queries the response was YES. [2023-11-12 02:16:01,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31366 conditions, 9533 events. 6047/9533 cut-off events. For 19972/20570 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 54241 event pairs, 824 based on Foata normal form. 2/8658 useless extension candidates. Maximal degree in co-relation 31357. Up to 6455 conditions per place. [2023-11-12 02:16:01,175 INFO L140 encePairwiseOnDemand]: 355/365 looper letters, 79 selfloop transitions, 165 changer transitions 0/282 dead transitions. [2023-11-12 02:16:01,175 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 282 transitions, 2196 flow [2023-11-12 02:16:01,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:01,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:01,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1391 transitions. [2023-11-12 02:16:01,180 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6351598173515982 [2023-11-12 02:16:01,181 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1391 transitions. [2023-11-12 02:16:01,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1391 transitions. [2023-11-12 02:16:01,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:01,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1391 transitions. [2023-11-12 02:16:01,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 231.83333333333334) internal successors, (1391), 6 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:01,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:01,193 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:01,193 INFO L175 Difference]: Start difference. First operand has 92 places, 108 transitions, 490 flow. Second operand 6 states and 1391 transitions. [2023-11-12 02:16:01,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 282 transitions, 2196 flow [2023-11-12 02:16:01,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 282 transitions, 2182 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-12 02:16:01,236 INFO L231 Difference]: Finished difference. Result has 94 places, 272 transitions, 2418 flow [2023-11-12 02:16:01,236 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2418, PETRI_PLACES=94, PETRI_TRANSITIONS=272} [2023-11-12 02:16:01,237 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -6 predicate places. [2023-11-12 02:16:01,237 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 272 transitions, 2418 flow [2023-11-12 02:16:01,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.5) internal successors, (1347), 6 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:01,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:01,239 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:01,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:16:01,239 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:16:01,239 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:01,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1278538387, now seen corresponding path program 1 times [2023-11-12 02:16:01,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:01,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958568518] [2023-11-12 02:16:01,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:01,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:01,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:01,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958568518] [2023-11-12 02:16:01,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958568518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:01,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:01,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:16:01,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459636653] [2023-11-12 02:16:01,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:01,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:16:01,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:01,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:16:01,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:16:03,040 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 365 [2023-11-12 02:16:03,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 272 transitions, 2418 flow. Second operand has 9 states, 9 states have (on average 221.44444444444446) internal successors, (1993), 9 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:03,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:03,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 365 [2023-11-12 02:16:03,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:04,866 INFO L124 PetriNetUnfolderBase]: 5690/9416 cut-off events. [2023-11-12 02:16:04,866 INFO L125 PetriNetUnfolderBase]: For 33809/34888 co-relation queries the response was YES. [2023-11-12 02:16:04,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38038 conditions, 9416 events. 5690/9416 cut-off events. For 33809/34888 co-relation queries the response was YES. Maximal size of possible extension queue 448. Compared 56977 event pairs, 434 based on Foata normal form. 651/9412 useless extension candidates. Maximal degree in co-relation 38025. Up to 5055 conditions per place. [2023-11-12 02:16:04,975 INFO L140 encePairwiseOnDemand]: 358/365 looper letters, 311 selfloop transitions, 9 changer transitions 0/358 dead transitions. [2023-11-12 02:16:04,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 358 transitions, 3820 flow [2023-11-12 02:16:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:16:04,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-12 02:16:04,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1809 transitions. [2023-11-12 02:16:04,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6195205479452055 [2023-11-12 02:16:04,984 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1809 transitions. [2023-11-12 02:16:04,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1809 transitions. [2023-11-12 02:16:04,986 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:04,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1809 transitions. [2023-11-12 02:16:04,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 226.125) internal successors, (1809), 8 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:04,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 365.0) internal successors, (3285), 9 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:05,000 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 365.0) internal successors, (3285), 9 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:05,000 INFO L175 Difference]: Start difference. First operand has 94 places, 272 transitions, 2418 flow. Second operand 8 states and 1809 transitions. [2023-11-12 02:16:05,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 358 transitions, 3820 flow [2023-11-12 02:16:05,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 358 transitions, 3778 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:16:05,070 INFO L231 Difference]: Finished difference. Result has 99 places, 271 transitions, 2390 flow [2023-11-12 02:16:05,071 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=2372, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2390, PETRI_PLACES=99, PETRI_TRANSITIONS=271} [2023-11-12 02:16:05,074 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, -1 predicate places. [2023-11-12 02:16:05,074 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 271 transitions, 2390 flow [2023-11-12 02:16:05,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 221.44444444444446) internal successors, (1993), 9 states have internal predecessors, (1993), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:05,075 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:05,075 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] [2023-11-12 02:16:05,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:16:05,076 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:16:05,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:05,077 INFO L85 PathProgramCache]: Analyzing trace with hash 159222154, now seen corresponding path program 1 times [2023-11-12 02:16:05,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:05,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213427627] [2023-11-12 02:16:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:05,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:05,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:05,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:05,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213427627] [2023-11-12 02:16:05,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213427627] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:05,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:05,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:16:05,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205878524] [2023-11-12 02:16:05,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:05,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:05,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:05,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:05,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:06,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 365 [2023-11-12 02:16:06,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 271 transitions, 2390 flow. Second operand has 6 states, 6 states have (on average 224.83333333333334) internal successors, (1349), 6 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:06,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:06,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 365 [2023-11-12 02:16:06,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:08,303 INFO L124 PetriNetUnfolderBase]: 7805/12098 cut-off events. [2023-11-12 02:16:08,303 INFO L125 PetriNetUnfolderBase]: For 57838/58772 co-relation queries the response was YES. [2023-11-12 02:16:08,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49235 conditions, 12098 events. 7805/12098 cut-off events. For 57838/58772 co-relation queries the response was YES. Maximal size of possible extension queue 444. Compared 68551 event pairs, 1064 based on Foata normal form. 2/11270 useless extension candidates. Maximal degree in co-relation 49222. Up to 7990 conditions per place. [2023-11-12 02:16:08,445 INFO L140 encePairwiseOnDemand]: 356/365 looper letters, 237 selfloop transitions, 125 changer transitions 0/403 dead transitions. [2023-11-12 02:16:08,446 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 403 transitions, 4330 flow [2023-11-12 02:16:08,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:08,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:08,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1385 transitions. [2023-11-12 02:16:08,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.632420091324201 [2023-11-12 02:16:08,451 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1385 transitions. [2023-11-12 02:16:08,452 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1385 transitions. [2023-11-12 02:16:08,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:08,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1385 transitions. [2023-11-12 02:16:08,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 230.83333333333334) internal successors, (1385), 6 states have internal predecessors, (1385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:08,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:08,463 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:08,463 INFO L175 Difference]: Start difference. First operand has 99 places, 271 transitions, 2390 flow. Second operand 6 states and 1385 transitions. [2023-11-12 02:16:08,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 403 transitions, 4330 flow [2023-11-12 02:16:08,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 403 transitions, 4314 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-12 02:16:08,526 INFO L231 Difference]: Finished difference. Result has 103 places, 395 transitions, 4140 flow [2023-11-12 02:16:08,527 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=2374, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4140, PETRI_PLACES=103, PETRI_TRANSITIONS=395} [2023-11-12 02:16:08,528 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 3 predicate places. [2023-11-12 02:16:08,528 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 395 transitions, 4140 flow [2023-11-12 02:16:08,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 224.83333333333334) internal successors, (1349), 6 states have internal predecessors, (1349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:08,529 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:08,529 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:08,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:16:08,530 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:16:08,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:08,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1683674046, now seen corresponding path program 1 times [2023-11-12 02:16:08,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:08,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684959843] [2023-11-12 02:16:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:08,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:09,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:09,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:09,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684959843] [2023-11-12 02:16:09,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684959843] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:09,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:09,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:16:09,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381038841] [2023-11-12 02:16:09,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:09,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:16:09,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:09,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:16:09,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:16:10,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 365 [2023-11-12 02:16:10,157 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 395 transitions, 4140 flow. Second operand has 9 states, 9 states have (on average 221.66666666666666) internal successors, (1995), 9 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:10,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:10,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 365 [2023-11-12 02:16:10,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:12,416 INFO L124 PetriNetUnfolderBase]: 7713/12069 cut-off events. [2023-11-12 02:16:12,417 INFO L125 PetriNetUnfolderBase]: For 75592/76490 co-relation queries the response was YES. [2023-11-12 02:16:12,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55860 conditions, 12069 events. 7713/12069 cut-off events. For 75592/76490 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 69273 event pairs, 679 based on Foata normal form. 75/11392 useless extension candidates. Maximal degree in co-relation 55843. Up to 6928 conditions per place. [2023-11-12 02:16:12,742 INFO L140 encePairwiseOnDemand]: 358/365 looper letters, 411 selfloop transitions, 9 changer transitions 0/461 dead transitions. [2023-11-12 02:16:12,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 461 transitions, 5674 flow [2023-11-12 02:16:12,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:16:12,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-12 02:16:12,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1805 transitions. [2023-11-12 02:16:12,752 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6181506849315068 [2023-11-12 02:16:12,752 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1805 transitions. [2023-11-12 02:16:12,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1805 transitions. [2023-11-12 02:16:12,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:12,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1805 transitions. [2023-11-12 02:16:12,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 225.625) internal successors, (1805), 8 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:12,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 365.0) internal successors, (3285), 9 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:12,779 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 365.0) internal successors, (3285), 9 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:12,788 INFO L175 Difference]: Start difference. First operand has 103 places, 395 transitions, 4140 flow. Second operand 8 states and 1805 transitions. [2023-11-12 02:16:12,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 461 transitions, 5674 flow [2023-11-12 02:16:12,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 461 transitions, 5402 flow, removed 120 selfloop flow, removed 1 redundant places. [2023-11-12 02:16:12,923 INFO L231 Difference]: Finished difference. Result has 108 places, 394 transitions, 3882 flow [2023-11-12 02:16:12,924 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=3864, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=385, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3882, PETRI_PLACES=108, PETRI_TRANSITIONS=394} [2023-11-12 02:16:12,928 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2023-11-12 02:16:12,929 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 394 transitions, 3882 flow [2023-11-12 02:16:12,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 221.66666666666666) internal successors, (1995), 9 states have internal predecessors, (1995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:12,930 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:12,931 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] [2023-11-12 02:16:12,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:16:12,931 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:16:12,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1131082497, now seen corresponding path program 1 times [2023-11-12 02:16:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:12,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672843800] [2023-11-12 02:16:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:12,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:12,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:13,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:13,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:13,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672843800] [2023-11-12 02:16:13,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672843800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:13,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:13,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:16:13,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388852221] [2023-11-12 02:16:13,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:13,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:13,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:13,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:13,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:13,896 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 365 [2023-11-12 02:16:13,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 394 transitions, 3882 flow. Second operand has 6 states, 6 states have (on average 225.16666666666666) internal successors, (1351), 6 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:13,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:13,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 365 [2023-11-12 02:16:13,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:16,124 INFO L124 PetriNetUnfolderBase]: 8531/13056 cut-off events. [2023-11-12 02:16:16,124 INFO L125 PetriNetUnfolderBase]: For 85981/87021 co-relation queries the response was YES. [2023-11-12 02:16:16,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58724 conditions, 13056 events. 8531/13056 cut-off events. For 85981/87021 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 72753 event pairs, 1083 based on Foata normal form. 0/12266 useless extension candidates. Maximal degree in co-relation 58707. Up to 8713 conditions per place. [2023-11-12 02:16:16,281 INFO L140 encePairwiseOnDemand]: 357/365 looper letters, 355 selfloop transitions, 125 changer transitions 0/524 dead transitions. [2023-11-12 02:16:16,282 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 524 transitions, 6192 flow [2023-11-12 02:16:16,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:16,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:16,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1379 transitions. [2023-11-12 02:16:16,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6296803652968036 [2023-11-12 02:16:16,295 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1379 transitions. [2023-11-12 02:16:16,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1379 transitions. [2023-11-12 02:16:16,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:16,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1379 transitions. [2023-11-12 02:16:16,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 229.83333333333334) internal successors, (1379), 6 states have internal predecessors, (1379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:16,308 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:16,309 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:16,310 INFO L175 Difference]: Start difference. First operand has 108 places, 394 transitions, 3882 flow. Second operand 6 states and 1379 transitions. [2023-11-12 02:16:16,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 524 transitions, 6192 flow [2023-11-12 02:16:16,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 524 transitions, 6176 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-12 02:16:16,420 INFO L231 Difference]: Finished difference. Result has 112 places, 518 transitions, 5772 flow [2023-11-12 02:16:16,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=3866, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5772, PETRI_PLACES=112, PETRI_TRANSITIONS=518} [2023-11-12 02:16:16,422 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 12 predicate places. [2023-11-12 02:16:16,422 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 518 transitions, 5772 flow [2023-11-12 02:16:16,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.16666666666666) internal successors, (1351), 6 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:16,423 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:16,423 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] [2023-11-12 02:16:16,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:16:16,423 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:16:16,424 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:16,424 INFO L85 PathProgramCache]: Analyzing trace with hash 271708996, now seen corresponding path program 1 times [2023-11-12 02:16:16,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:16,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126194032] [2023-11-12 02:16:16,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:16,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:16,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:17,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:17,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:17,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126194032] [2023-11-12 02:16:17,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126194032] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:17,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:17,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:16:17,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287230303] [2023-11-12 02:16:17,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:17,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:16:17,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:17,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:16:17,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:16:18,052 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 365 [2023-11-12 02:16:18,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 518 transitions, 5772 flow. Second operand has 9 states, 9 states have (on average 221.88888888888889) internal successors, (1997), 9 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:18,054 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:18,054 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 365 [2023-11-12 02:16:18,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:20,251 INFO L124 PetriNetUnfolderBase]: 8544/13106 cut-off events. [2023-11-12 02:16:20,251 INFO L125 PetriNetUnfolderBase]: For 99611/100665 co-relation queries the response was YES. [2023-11-12 02:16:20,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63034 conditions, 13106 events. 8544/13106 cut-off events. For 99611/100665 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 73341 event pairs, 851 based on Foata normal form. 31/12381 useless extension candidates. Maximal degree in co-relation 63013. Up to 7720 conditions per place. [2023-11-12 02:16:20,428 INFO L140 encePairwiseOnDemand]: 358/365 looper letters, 511 selfloop transitions, 9 changer transitions 0/564 dead transitions. [2023-11-12 02:16:20,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 564 transitions, 7358 flow [2023-11-12 02:16:20,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 02:16:20,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-12 02:16:20,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1801 transitions. [2023-11-12 02:16:20,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6167808219178083 [2023-11-12 02:16:20,438 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1801 transitions. [2023-11-12 02:16:20,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1801 transitions. [2023-11-12 02:16:20,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:20,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1801 transitions. [2023-11-12 02:16:20,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 225.125) internal successors, (1801), 8 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:20,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 365.0) internal successors, (3285), 9 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:20,453 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 365.0) internal successors, (3285), 9 states have internal predecessors, (3285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:20,453 INFO L175 Difference]: Start difference. First operand has 112 places, 518 transitions, 5772 flow. Second operand 8 states and 1801 transitions. [2023-11-12 02:16:20,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 564 transitions, 7358 flow [2023-11-12 02:16:20,655 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 564 transitions, 7246 flow, removed 40 selfloop flow, removed 1 redundant places. [2023-11-12 02:16:20,670 INFO L231 Difference]: Finished difference. Result has 117 places, 517 transitions, 5674 flow [2023-11-12 02:16:20,671 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=5656, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5674, PETRI_PLACES=117, PETRI_TRANSITIONS=517} [2023-11-12 02:16:20,672 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 17 predicate places. [2023-11-12 02:16:20,672 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 517 transitions, 5674 flow [2023-11-12 02:16:20,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 221.88888888888889) internal successors, (1997), 9 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:20,673 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:20,674 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] [2023-11-12 02:16:20,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:16:20,674 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:16:20,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:20,675 INFO L85 PathProgramCache]: Analyzing trace with hash 254487940, now seen corresponding path program 1 times [2023-11-12 02:16:20,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:20,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784588550] [2023-11-12 02:16:20,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:20,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:21,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:21,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:21,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784588550] [2023-11-12 02:16:21,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784588550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:21,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:21,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:16:21,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423546300] [2023-11-12 02:16:21,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:21,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:16:21,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:21,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:16:21,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:16:21,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 365 [2023-11-12 02:16:21,830 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 517 transitions, 5674 flow. Second operand has 6 states, 6 states have (on average 225.5) internal successors, (1353), 6 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:21,830 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:21,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 365 [2023-11-12 02:16:21,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:16:23,725 INFO L124 PetriNetUnfolderBase]: 8783/13393 cut-off events. [2023-11-12 02:16:23,725 INFO L125 PetriNetUnfolderBase]: For 108233/109334 co-relation queries the response was YES. [2023-11-12 02:16:23,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64383 conditions, 13393 events. 8783/13393 cut-off events. For 108233/109334 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 74305 event pairs, 1105 based on Foata normal form. 0/12667 useless extension candidates. Maximal degree in co-relation 64362. Up to 8999 conditions per place. [2023-11-12 02:16:23,859 INFO L140 encePairwiseOnDemand]: 358/365 looper letters, 352 selfloop transitions, 85 changer transitions 121/605 dead transitions. [2023-11-12 02:16:23,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 605 transitions, 7878 flow [2023-11-12 02:16:23,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:16:23,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-12 02:16:23,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1373 transitions. [2023-11-12 02:16:23,867 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6269406392694064 [2023-11-12 02:16:23,867 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1373 transitions. [2023-11-12 02:16:23,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1373 transitions. [2023-11-12 02:16:23,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:16:23,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1373 transitions. [2023-11-12 02:16:23,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.83333333333334) internal successors, (1373), 6 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:23,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:23,880 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 365.0) internal successors, (2555), 7 states have internal predecessors, (2555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:23,880 INFO L175 Difference]: Start difference. First operand has 117 places, 517 transitions, 5674 flow. Second operand 6 states and 1373 transitions. [2023-11-12 02:16:23,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 605 transitions, 7878 flow [2023-11-12 02:16:24,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 605 transitions, 7862 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-12 02:16:24,076 INFO L231 Difference]: Finished difference. Result has 121 places, 480 transitions, 5546 flow [2023-11-12 02:16:24,077 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=365, PETRI_DIFFERENCE_MINUEND_FLOW=5658, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=517, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5546, PETRI_PLACES=121, PETRI_TRANSITIONS=480} [2023-11-12 02:16:24,077 INFO L281 CegarLoopForPetriNet]: 100 programPoint places, 21 predicate places. [2023-11-12 02:16:24,077 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 480 transitions, 5546 flow [2023-11-12 02:16:24,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 225.5) internal successors, (1353), 6 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:24,078 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:16:24,078 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:24,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:16:24,079 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-12 02:16:24,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:24,080 INFO L85 PathProgramCache]: Analyzing trace with hash 313639218, now seen corresponding path program 1 times [2023-11-12 02:16:24,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:16:24,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189706239] [2023-11-12 02:16:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:24,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:16:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:24,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:16:24,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189706239] [2023-11-12 02:16:24,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189706239] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:24,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:24,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:16:24,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992155566] [2023-11-12 02:16:24,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:24,861 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:16:24,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:16:24,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:16:24,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:16:26,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 365 [2023-11-12 02:16:26,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 480 transitions, 5546 flow. Second operand has 9 states, 9 states have (on average 211.11111111111111) internal successors, (1900), 9 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:16:26,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:16:26,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 365 [2023-11-12 02:16:26,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand