./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu --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 827df23f2f2d5cc81b0f2d655a6c774471e4114629b1caec5ad3ca146d0279c2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:02:00,761 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:02:00,829 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 08:02:00,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:02:00,835 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:02:00,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:02:00,861 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:02:00,861 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:02:00,862 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:02:00,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:02:00,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:02:00,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:02:00,865 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:02:00,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:02:00,867 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:02:00,867 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:02:00,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:02:00,868 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:02:00,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:02:00,869 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:02:00,870 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:02:00,870 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:02:00,871 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 08:02:00,871 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:02:00,872 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:02:00,872 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:02:00,873 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:02:00,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:02:00,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:02:00,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:02:00,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:00,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:02:00,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:02:00,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:02:00,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:02:00,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:02:00,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:02:00,879 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:02:00,879 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:02:00,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:02:00,880 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:02:00,880 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_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 827df23f2f2d5cc81b0f2d655a6c774471e4114629b1caec5ad3ca146d0279c2 [2023-11-19 08:02:01,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:02:01,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:02:01,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:02:01,242 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:02:01,243 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:02:01,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-3.i [2023-11-19 08:02:04,426 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:02:04,777 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:02:04,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/sv-benchmarks/c/pthread-race-challenges/thread-join-array-dynamic-race-3.i [2023-11-19 08:02:04,808 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/data/6fca8a1ad/f7db420ddd9941c393a17fcb20cd8f9d/FLAGc758076c0 [2023-11-19 08:02:04,830 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/data/6fca8a1ad/f7db420ddd9941c393a17fcb20cd8f9d [2023-11-19 08:02:04,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:02:04,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:02:04,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:04,846 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:02:04,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:02:04,855 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:04" (1/1) ... [2023-11-19 08:02:04,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc52b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:04, skipping insertion in model container [2023-11-19 08:02:04,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:04" (1/1) ... [2023-11-19 08:02:04,927 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:02:05,146 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:02:05,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:05,552 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:02:05,584 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 08:02:05,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:02:05,688 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 08:02:05,697 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:02:05,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05 WrapperNode [2023-11-19 08:02:05,698 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:02:05,700 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:05,700 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:02:05,700 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:02:05,709 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (1/1) ... [2023-11-19 08:02:05,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (1/1) ... [2023-11-19 08:02:05,795 INFO L138 Inliner]: procedures = 269, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 99 [2023-11-19 08:02:05,798 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:02:05,799 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:02:05,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:02:05,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:02:05,810 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (1/1) ... [2023-11-19 08:02:05,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (1/1) ... [2023-11-19 08:02:05,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (1/1) ... [2023-11-19 08:02:05,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (1/1) ... [2023-11-19 08:02:05,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (1/1) ... [2023-11-19 08:02:05,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (1/1) ... [2023-11-19 08:02:05,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (1/1) ... [2023-11-19 08:02:05,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (1/1) ... [2023-11-19 08:02:05,859 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:02:05,860 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:02:05,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:02:05,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:02:05,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (1/1) ... [2023-11-19 08:02:05,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:02:05,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:02:05,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:02:05,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_608ede12-b36a-4794-8c7e-0c30f02fecd8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:02:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:02:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 08:02:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:02:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 08:02:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:02:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:02:05,963 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 08:02:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 08:02:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:02:05,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:02:05,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-19 08:02:05,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-19 08:02:05,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:02:05,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:02:05,969 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:02:06,153 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:02:06,155 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:02:06,505 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:02:06,516 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:02:06,524 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:02:06,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:06 BoogieIcfgContainer [2023-11-19 08:02:06,529 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:02:06,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:02:06,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:02:06,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:02:06,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:04" (1/3) ... [2023-11-19 08:02:06,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bcb592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:06, skipping insertion in model container [2023-11-19 08:02:06,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:05" (2/3) ... [2023-11-19 08:02:06,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bcb592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:06, skipping insertion in model container [2023-11-19 08:02:06,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:06" (3/3) ... [2023-11-19 08:02:06,538 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-array-dynamic-race-3.i [2023-11-19 08:02:06,547 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:02:06,557 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:02:06,557 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-19 08:02:06,557 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:02:06,633 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 08:02:06,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 140 transitions, 294 flow [2023-11-19 08:02:06,800 INFO L124 PetriNetUnfolderBase]: 9/303 cut-off events. [2023-11-19 08:02:06,800 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 08:02:06,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 303 events. 9/303 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 833 event pairs, 0 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 154. Up to 8 conditions per place. [2023-11-19 08:02:06,809 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 140 transitions, 294 flow [2023-11-19 08:02:06,816 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 139 transitions, 291 flow [2023-11-19 08:02:06,820 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:02:06,831 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 139 transitions, 291 flow [2023-11-19 08:02:06,842 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 139 transitions, 291 flow [2023-11-19 08:02:06,843 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 139 transitions, 291 flow [2023-11-19 08:02:06,963 INFO L124 PetriNetUnfolderBase]: 9/303 cut-off events. [2023-11-19 08:02:06,964 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-19 08:02:06,966 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316 conditions, 303 events. 9/303 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 833 event pairs, 0 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 154. Up to 8 conditions per place. [2023-11-19 08:02:06,975 INFO L119 LiptonReduction]: Number of co-enabled transitions 4170 [2023-11-19 08:02:13,108 INFO L134 LiptonReduction]: Checked pairs total: 7496 [2023-11-19 08:02:13,109 INFO L136 LiptonReduction]: Total number of compositions: 121 [2023-11-19 08:02:13,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:02:13,133 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;@604b4dfb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:02:13,133 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-19 08:02:13,135 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:02:13,136 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2023-11-19 08:02:13,136 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:02:13,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:13,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 08:02:13,138 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-19 08:02:13,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:13,144 INFO L85 PathProgramCache]: Analyzing trace with hash 14520, now seen corresponding path program 1 times [2023-11-19 08:02:13,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:13,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508027502] [2023-11-19 08:02:13,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:13,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:13,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:13,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:13,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:13,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508027502] [2023-11-19 08:02:13,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508027502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:13,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:13,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:02:13,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433326656] [2023-11-19 08:02:13,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:13,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:02:13,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:13,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:02:13,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:02:13,376 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 261 [2023-11-19 08:02:13,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 34 transitions, 81 flow. Second operand has 2 states, 2 states have (on average 134.0) internal successors, (268), 2 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:13,379 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:13,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 261 [2023-11-19 08:02:13,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:13,554 INFO L124 PetriNetUnfolderBase]: 287/628 cut-off events. [2023-11-19 08:02:13,554 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-19 08:02:13,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1190 conditions, 628 events. 287/628 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3178 event pairs, 281 based on Foata normal form. 0/542 useless extension candidates. Maximal degree in co-relation 1024. Up to 530 conditions per place. [2023-11-19 08:02:13,567 INFO L140 encePairwiseOnDemand]: 256/261 looper letters, 22 selfloop transitions, 0 changer transitions 0/29 dead transitions. [2023-11-19 08:02:13,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 29 transitions, 115 flow [2023-11-19 08:02:13,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:02:13,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:02:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 293 transitions. [2023-11-19 08:02:13,607 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5613026819923371 [2023-11-19 08:02:13,608 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 293 transitions. [2023-11-19 08:02:13,609 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 293 transitions. [2023-11-19 08:02:13,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:13,615 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 293 transitions. [2023-11-19 08:02:13,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 146.5) internal successors, (293), 2 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:13,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:13,628 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 261.0) internal successors, (783), 3 states have internal predecessors, (783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:13,631 INFO L175 Difference]: Start difference. First operand has 38 places, 34 transitions, 81 flow. Second operand 2 states and 293 transitions. [2023-11-19 08:02:13,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 29 transitions, 115 flow [2023-11-19 08:02:13,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 111 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:02:13,641 INFO L231 Difference]: Finished difference. Result has 32 places, 29 transitions, 67 flow [2023-11-19 08:02:13,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=261, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=67, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2023-11-19 08:02:13,648 INFO L281 CegarLoopForPetriNet]: 38 programPoint places, -6 predicate places. [2023-11-19 08:02:13,649 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 67 flow [2023-11-19 08:02:13,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 134.0) internal successors, (268), 2 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:13,650 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:13,650 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-19 08:02:13,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:02:13,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-19 08:02:13,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:13,663 INFO L85 PathProgramCache]: Analyzing trace with hash 534855500, now seen corresponding path program 1 times [2023-11-19 08:02:13,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:13,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909941140] [2023-11-19 08:02:13,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:13,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:13,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:13,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:13,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:13,879 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:02:13,882 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2023-11-19 08:02:13,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-19 08:02:13,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-11-19 08:02:13,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-19 08:02:13,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-19 08:02:13,887 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-19 08:02:13,888 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-19 08:02:13,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 11 remaining) [2023-11-19 08:02:13,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-19 08:02:13,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-19 08:02:13,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-19 08:02:13,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:02:13,891 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 08:02:13,895 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 08:02:13,896 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-19 08:02:13,942 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-19 08:02:13,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 177 places, 174 transitions, 380 flow [2023-11-19 08:02:14,030 INFO L124 PetriNetUnfolderBase]: 19/541 cut-off events. [2023-11-19 08:02:14,031 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-19 08:02:14,033 INFO L83 FinitePrefix]: Finished finitePrefix Result has 569 conditions, 541 events. 19/541 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1882 event pairs, 1 based on Foata normal form. 0/475 useless extension candidates. Maximal degree in co-relation 564. Up to 16 conditions per place. [2023-11-19 08:02:14,033 INFO L82 GeneralOperation]: Start removeDead. Operand has 177 places, 174 transitions, 380 flow [2023-11-19 08:02:14,036 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 156 transitions, 334 flow [2023-11-19 08:02:14,037 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:02:14,037 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 158 places, 156 transitions, 334 flow [2023-11-19 08:02:14,037 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 158 places, 156 transitions, 334 flow [2023-11-19 08:02:14,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 156 transitions, 334 flow [2023-11-19 08:02:14,117 INFO L124 PetriNetUnfolderBase]: 19/541 cut-off events. [2023-11-19 08:02:14,117 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-19 08:02:14,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 568 conditions, 541 events. 19/541 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1889 event pairs, 1 based on Foata normal form. 0/475 useless extension candidates. Maximal degree in co-relation 312. Up to 16 conditions per place. [2023-11-19 08:02:14,133 INFO L119 LiptonReduction]: Number of co-enabled transitions 7530 [2023-11-19 08:02:19,570 INFO L134 LiptonReduction]: Checked pairs total: 14184 [2023-11-19 08:02:19,571 INFO L136 LiptonReduction]: Total number of compositions: 130 [2023-11-19 08:02:19,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:02:19,575 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;@604b4dfb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:02:19,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2023-11-19 08:02:19,577 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:02:19,577 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-19 08:02:19,578 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:02:19,578 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:19,578 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 08:02:19,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:02:19,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:19,579 INFO L85 PathProgramCache]: Analyzing trace with hash 24824, now seen corresponding path program 1 times [2023-11-19 08:02:19,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:19,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442517548] [2023-11-19 08:02:19,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:19,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:19,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:19,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:19,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442517548] [2023-11-19 08:02:19,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442517548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:19,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:19,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:02:19,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232157056] [2023-11-19 08:02:19,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:19,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:02:19,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:19,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:02:19,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:02:19,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 304 [2023-11-19 08:02:19,613 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 43 transitions, 108 flow. Second operand has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:19,613 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:19,613 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 304 [2023-11-19 08:02:19,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:20,249 INFO L124 PetriNetUnfolderBase]: 2725/4770 cut-off events. [2023-11-19 08:02:20,249 INFO L125 PetriNetUnfolderBase]: For 225/225 co-relation queries the response was YES. [2023-11-19 08:02:20,260 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9156 conditions, 4770 events. 2725/4770 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 29863 event pairs, 2677 based on Foata normal form. 0/4334 useless extension candidates. Maximal degree in co-relation 4034. Up to 4168 conditions per place. [2023-11-19 08:02:20,293 INFO L140 encePairwiseOnDemand]: 299/304 looper letters, 28 selfloop transitions, 0 changer transitions 0/38 dead transitions. [2023-11-19 08:02:20,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 38 transitions, 154 flow [2023-11-19 08:02:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:02:20,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:02:20,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 359 transitions. [2023-11-19 08:02:20,296 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5904605263157895 [2023-11-19 08:02:20,297 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 359 transitions. [2023-11-19 08:02:20,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 359 transitions. [2023-11-19 08:02:20,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:20,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 359 transitions. [2023-11-19 08:02:20,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 179.5) internal successors, (359), 2 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:20,303 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:20,304 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 304.0) internal successors, (912), 3 states have internal predecessors, (912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:20,304 INFO L175 Difference]: Start difference. First operand has 48 places, 43 transitions, 108 flow. Second operand 2 states and 359 transitions. [2023-11-19 08:02:20,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 38 transitions, 154 flow [2023-11-19 08:02:20,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 38 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:02:20,312 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 94 flow [2023-11-19 08:02:20,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=94, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2023-11-19 08:02:20,313 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -6 predicate places. [2023-11-19 08:02:20,314 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 94 flow [2023-11-19 08:02:20,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 164.0) internal successors, (328), 2 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:20,314 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:20,315 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:02:20,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:02:20,315 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:02:20,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:20,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1468633219, now seen corresponding path program 1 times [2023-11-19 08:02:20,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:20,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230590418] [2023-11-19 08:02:20,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:20,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:20,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:20,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:20,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230590418] [2023-11-19 08:02:20,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230590418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:20,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:20,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:20,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654644635] [2023-11-19 08:02:20,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:20,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:20,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:20,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:20,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:20,565 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 304 [2023-11-19 08:02:20,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:20,567 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:20,567 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 304 [2023-11-19 08:02:20,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:21,132 INFO L124 PetriNetUnfolderBase]: 2720/4812 cut-off events. [2023-11-19 08:02:21,132 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2023-11-19 08:02:21,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9107 conditions, 4812 events. 2720/4812 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 203. Compared 30548 event pairs, 1638 based on Foata normal form. 0/4368 useless extension candidates. Maximal degree in co-relation 9102. Up to 4149 conditions per place. [2023-11-19 08:02:21,174 INFO L140 encePairwiseOnDemand]: 301/304 looper letters, 33 selfloop transitions, 2 changer transitions 0/45 dead transitions. [2023-11-19 08:02:21,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 45 transitions, 178 flow [2023-11-19 08:02:21,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:21,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:02:21,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2023-11-19 08:02:21,177 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.555921052631579 [2023-11-19 08:02:21,178 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 507 transitions. [2023-11-19 08:02:21,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions. [2023-11-19 08:02:21,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:21,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions. [2023-11-19 08:02:21,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:21,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:21,242 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:21,242 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 94 flow. Second operand 3 states and 507 transitions. [2023-11-19 08:02:21,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 45 transitions, 178 flow [2023-11-19 08:02:21,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 45 transitions, 178 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:02:21,245 INFO L231 Difference]: Finished difference. Result has 45 places, 39 transitions, 106 flow [2023-11-19 08:02:21,245 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=45, PETRI_TRANSITIONS=39} [2023-11-19 08:02:21,246 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-19 08:02:21,246 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 39 transitions, 106 flow [2023-11-19 08:02:21,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:21,247 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:21,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:21,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:02:21,249 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:02:21,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:21,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1549615229, now seen corresponding path program 1 times [2023-11-19 08:02:21,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:21,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182188768] [2023-11-19 08:02:21,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:21,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:21,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:21,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:21,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182188768] [2023-11-19 08:02:21,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182188768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:21,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:21,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:21,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338511136] [2023-11-19 08:02:21,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:21,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:21,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:21,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:21,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:21,397 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 304 [2023-11-19 08:02:21,399 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 39 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:21,399 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:21,399 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 304 [2023-11-19 08:02:21,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:22,356 INFO L124 PetriNetUnfolderBase]: 4528/7358 cut-off events. [2023-11-19 08:02:22,357 INFO L125 PetriNetUnfolderBase]: For 343/343 co-relation queries the response was YES. [2023-11-19 08:02:22,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14440 conditions, 7358 events. 4528/7358 cut-off events. For 343/343 co-relation queries the response was YES. Maximal size of possible extension queue 293. Compared 46117 event pairs, 3040 based on Foata normal form. 0/6591 useless extension candidates. Maximal degree in co-relation 14433. Up to 5293 conditions per place. [2023-11-19 08:02:22,452 INFO L140 encePairwiseOnDemand]: 297/304 looper letters, 49 selfloop transitions, 6 changer transitions 0/63 dead transitions. [2023-11-19 08:02:22,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 63 transitions, 281 flow [2023-11-19 08:02:22,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:22,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:02:22,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2023-11-19 08:02:22,455 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5657894736842105 [2023-11-19 08:02:22,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 516 transitions. [2023-11-19 08:02:22,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 516 transitions. [2023-11-19 08:02:22,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:22,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 516 transitions. [2023-11-19 08:02:22,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:22,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:22,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 304.0) internal successors, (1216), 4 states have internal predecessors, (1216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:22,462 INFO L175 Difference]: Start difference. First operand has 45 places, 39 transitions, 106 flow. Second operand 3 states and 516 transitions. [2023-11-19 08:02:22,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 63 transitions, 281 flow [2023-11-19 08:02:22,464 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 63 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:02:22,466 INFO L231 Difference]: Finished difference. Result has 48 places, 44 transitions, 150 flow [2023-11-19 08:02:22,466 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=48, PETRI_TRANSITIONS=44} [2023-11-19 08:02:22,468 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 0 predicate places. [2023-11-19 08:02:22,468 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 44 transitions, 150 flow [2023-11-19 08:02:22,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 156.33333333333334) internal successors, (469), 3 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:22,469 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:22,469 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:22,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:02:22,469 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:02:22,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:22,470 INFO L85 PathProgramCache]: Analyzing trace with hash 687666435, now seen corresponding path program 1 times [2023-11-19 08:02:22,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:22,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222982969] [2023-11-19 08:02:22,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:22,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:22,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:22,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:02:22,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:22,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222982969] [2023-11-19 08:02:22,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222982969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:22,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:22,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:02:22,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196219620] [2023-11-19 08:02:22,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:22,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:02:22,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:22,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:02:22,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:02:22,656 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 304 [2023-11-19 08:02:22,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:22,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:22,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 304 [2023-11-19 08:02:22,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:23,394 INFO L124 PetriNetUnfolderBase]: 2946/5139 cut-off events. [2023-11-19 08:02:23,394 INFO L125 PetriNetUnfolderBase]: For 2583/2747 co-relation queries the response was YES. [2023-11-19 08:02:23,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12004 conditions, 5139 events. 2946/5139 cut-off events. For 2583/2747 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 32387 event pairs, 1074 based on Foata normal form. 319/5285 useless extension candidates. Maximal degree in co-relation 11996. Up to 2158 conditions per place. [2023-11-19 08:02:23,471 INFO L140 encePairwiseOnDemand]: 299/304 looper letters, 66 selfloop transitions, 4 changer transitions 0/81 dead transitions. [2023-11-19 08:02:23,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 81 transitions, 415 flow [2023-11-19 08:02:23,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:02:23,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:02:23,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 684 transitions. [2023-11-19 08:02:23,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5625 [2023-11-19 08:02:23,480 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 684 transitions. [2023-11-19 08:02:23,480 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 684 transitions. [2023-11-19 08:02:23,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:23,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 684 transitions. [2023-11-19 08:02:23,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 171.0) internal successors, (684), 4 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:23,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 304.0) internal successors, (1520), 5 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:23,489 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 304.0) internal successors, (1520), 5 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:23,489 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 150 flow. Second operand 4 states and 684 transitions. [2023-11-19 08:02:23,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 81 transitions, 415 flow [2023-11-19 08:02:23,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 81 transitions, 387 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:02:23,504 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 156 flow [2023-11-19 08:02:23,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=304, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2023-11-19 08:02:23,510 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 2 predicate places. [2023-11-19 08:02:23,511 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 156 flow [2023-11-19 08:02:23,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 158.0) internal successors, (632), 4 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:23,512 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:23,512 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-19 08:02:23,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:02:23,518 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2023-11-19 08:02:23,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:23,519 INFO L85 PathProgramCache]: Analyzing trace with hash 7204739, now seen corresponding path program 1 times [2023-11-19 08:02:23,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:23,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617619295] [2023-11-19 08:02:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:23,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:23,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:02:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:02:23,595 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:02:23,595 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 08:02:23,595 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 13 remaining) [2023-11-19 08:02:23,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2023-11-19 08:02:23,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2023-11-19 08:02:23,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2023-11-19 08:02:23,596 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2023-11-19 08:02:23,598 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (7 of 13 remaining) [2023-11-19 08:02:23,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2023-11-19 08:02:23,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2023-11-19 08:02:23,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2023-11-19 08:02:23,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2023-11-19 08:02:23,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2023-11-19 08:02:23,599 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2023-11-19 08:02:23,600 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2023-11-19 08:02:23,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:02:23,600 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 08:02:23,601 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-19 08:02:23,601 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-19 08:02:23,653 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2023-11-19 08:02:23,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 208 transitions, 470 flow [2023-11-19 08:02:23,828 INFO L124 PetriNetUnfolderBase]: 41/955 cut-off events. [2023-11-19 08:02:23,829 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-11-19 08:02:23,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 955 events. 41/955 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4183 event pairs, 6 based on Foata normal form. 0/835 useless extension candidates. Maximal degree in co-relation 1004. Up to 32 conditions per place. [2023-11-19 08:02:23,834 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 208 transitions, 470 flow [2023-11-19 08:02:23,838 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 173 transitions, 379 flow [2023-11-19 08:02:23,839 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:02:23,839 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 176 places, 173 transitions, 379 flow [2023-11-19 08:02:23,839 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 176 places, 173 transitions, 379 flow [2023-11-19 08:02:23,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 173 transitions, 379 flow [2023-11-19 08:02:24,002 INFO L124 PetriNetUnfolderBase]: 41/955 cut-off events. [2023-11-19 08:02:24,002 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-11-19 08:02:24,008 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 955 events. 41/955 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4164 event pairs, 6 based on Foata normal form. 0/835 useless extension candidates. Maximal degree in co-relation 563. Up to 32 conditions per place. [2023-11-19 08:02:24,038 INFO L119 LiptonReduction]: Number of co-enabled transitions 11430 [2023-11-19 08:02:29,851 INFO L134 LiptonReduction]: Checked pairs total: 26924 [2023-11-19 08:02:29,851 INFO L136 LiptonReduction]: Total number of compositions: 145 [2023-11-19 08:02:29,853 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:02:29,854 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;@604b4dfb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:02:29,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-19 08:02:29,856 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:02:29,856 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2023-11-19 08:02:29,856 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:02:29,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:29,857 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 08:02:29,857 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 08:02:29,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:29,858 INFO L85 PathProgramCache]: Analyzing trace with hash 36692, now seen corresponding path program 1 times [2023-11-19 08:02:29,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:29,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840139195] [2023-11-19 08:02:29,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:29,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:29,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:29,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:29,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840139195] [2023-11-19 08:02:29,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840139195] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:29,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:29,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 08:02:29,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65508561] [2023-11-19 08:02:29,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:29,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:02:29,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:29,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:02:29,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:02:29,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 353 [2023-11-19 08:02:29,887 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 135 flow. Second operand has 2 states, 2 states have (on average 194.0) internal successors, (388), 2 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:29,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:29,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 353 [2023-11-19 08:02:29,888 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:33,580 INFO L124 PetriNetUnfolderBase]: 21992/33378 cut-off events. [2023-11-19 08:02:33,580 INFO L125 PetriNetUnfolderBase]: For 2278/2278 co-relation queries the response was YES. [2023-11-19 08:02:33,645 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65265 conditions, 33378 events. 21992/33378 cut-off events. For 2278/2278 co-relation queries the response was YES. Maximal size of possible extension queue 1000. Compared 235454 event pairs, 21734 based on Foata normal form. 0/31105 useless extension candidates. Maximal degree in co-relation 8978. Up to 30431 conditions per place. [2023-11-19 08:02:33,799 INFO L140 encePairwiseOnDemand]: 348/353 looper letters, 34 selfloop transitions, 0 changer transitions 0/46 dead transitions. [2023-11-19 08:02:33,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 46 transitions, 193 flow [2023-11-19 08:02:33,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:02:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:02:33,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 425 transitions. [2023-11-19 08:02:33,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6019830028328612 [2023-11-19 08:02:33,803 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 425 transitions. [2023-11-19 08:02:33,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 425 transitions. [2023-11-19 08:02:33,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:33,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 425 transitions. [2023-11-19 08:02:33,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 212.5) internal successors, (425), 2 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:33,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:33,808 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:33,809 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 135 flow. Second operand 2 states and 425 transitions. [2023-11-19 08:02:33,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 46 transitions, 193 flow [2023-11-19 08:02:33,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 46 transitions, 189 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:02:33,815 INFO L231 Difference]: Finished difference. Result has 51 places, 46 transitions, 121 flow [2023-11-19 08:02:33,816 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=121, PETRI_PLACES=51, PETRI_TRANSITIONS=46} [2023-11-19 08:02:33,818 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, -6 predicate places. [2023-11-19 08:02:33,818 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 46 transitions, 121 flow [2023-11-19 08:02:33,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 194.0) internal successors, (388), 2 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:33,819 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:33,819 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 08:02:33,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:02:33,819 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 08:02:33,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:33,820 INFO L85 PathProgramCache]: Analyzing trace with hash -442284467, now seen corresponding path program 1 times [2023-11-19 08:02:33,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:33,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590692495] [2023-11-19 08:02:33,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:33,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:33,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:33,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:33,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590692495] [2023-11-19 08:02:33,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590692495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:33,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:33,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:33,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350815887] [2023-11-19 08:02:33,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:33,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:33,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:33,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:33,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:33,913 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 353 [2023-11-19 08:02:33,914 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 46 transitions, 121 flow. Second operand has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:33,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:33,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 353 [2023-11-19 08:02:33,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:37,021 INFO L124 PetriNetUnfolderBase]: 21987/33673 cut-off events. [2023-11-19 08:02:37,022 INFO L125 PetriNetUnfolderBase]: For 1576/1576 co-relation queries the response was YES. [2023-11-19 08:02:37,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65115 conditions, 33673 events. 21987/33673 cut-off events. For 1576/1576 co-relation queries the response was YES. Maximal size of possible extension queue 980. Compared 238805 event pairs, 16003 based on Foata normal form. 0/31129 useless extension candidates. Maximal degree in co-relation 65109. Up to 30413 conditions per place. [2023-11-19 08:02:37,232 INFO L140 encePairwiseOnDemand]: 350/353 looper letters, 38 selfloop transitions, 2 changer transitions 0/52 dead transitions. [2023-11-19 08:02:37,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 52 transitions, 213 flow [2023-11-19 08:02:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:02:37,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2023-11-19 08:02:37,236 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5684608120868744 [2023-11-19 08:02:37,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 602 transitions. [2023-11-19 08:02:37,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 602 transitions. [2023-11-19 08:02:37,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:37,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 602 transitions. [2023-11-19 08:02:37,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:37,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:37,244 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:37,245 INFO L175 Difference]: Start difference. First operand has 51 places, 46 transitions, 121 flow. Second operand 3 states and 602 transitions. [2023-11-19 08:02:37,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 52 transitions, 213 flow [2023-11-19 08:02:37,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 213 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:02:37,250 INFO L231 Difference]: Finished difference. Result has 54 places, 47 transitions, 133 flow [2023-11-19 08:02:37,251 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=54, PETRI_TRANSITIONS=47} [2023-11-19 08:02:37,252 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2023-11-19 08:02:37,253 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 47 transitions, 133 flow [2023-11-19 08:02:37,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.66666666666666) internal successors, (566), 3 states have internal predecessors, (566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:37,254 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:37,254 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:37,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 08:02:37,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 08:02:37,254 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:37,255 INFO L85 PathProgramCache]: Analyzing trace with hash -914921039, now seen corresponding path program 1 times [2023-11-19 08:02:37,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:37,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421905774] [2023-11-19 08:02:37,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:37,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:02:37,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:37,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421905774] [2023-11-19 08:02:37,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421905774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:37,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:37,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:37,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857738029] [2023-11-19 08:02:37,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:37,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:37,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:37,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:37,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:37,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 353 [2023-11-19 08:02:37,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 47 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:37,336 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:37,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 353 [2023-11-19 08:02:37,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:43,329 INFO L124 PetriNetUnfolderBase]: 46820/68447 cut-off events. [2023-11-19 08:02:43,329 INFO L125 PetriNetUnfolderBase]: For 3508/3508 co-relation queries the response was YES. [2023-11-19 08:02:43,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134508 conditions, 68447 events. 46820/68447 cut-off events. For 3508/3508 co-relation queries the response was YES. Maximal size of possible extension queue 1729. Compared 472052 event pairs, 38633 based on Foata normal form. 0/62482 useless extension candidates. Maximal degree in co-relation 134500. Up to 57154 conditions per place. [2023-11-19 08:02:43,724 INFO L140 encePairwiseOnDemand]: 346/353 looper letters, 64 selfloop transitions, 6 changer transitions 0/78 dead transitions. [2023-11-19 08:02:43,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 78 transitions, 362 flow [2023-11-19 08:02:43,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:02:43,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:02:43,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 615 transitions. [2023-11-19 08:02:43,728 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5807365439093485 [2023-11-19 08:02:43,729 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 615 transitions. [2023-11-19 08:02:43,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 615 transitions. [2023-11-19 08:02:43,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:43,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 615 transitions. [2023-11-19 08:02:43,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:43,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:43,737 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:43,738 INFO L175 Difference]: Start difference. First operand has 54 places, 47 transitions, 133 flow. Second operand 3 states and 615 transitions. [2023-11-19 08:02:43,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 78 transitions, 362 flow [2023-11-19 08:02:43,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 78 transitions, 359 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:02:43,744 INFO L231 Difference]: Finished difference. Result has 56 places, 52 transitions, 171 flow [2023-11-19 08:02:43,744 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=131, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=171, PETRI_PLACES=56, PETRI_TRANSITIONS=52} [2023-11-19 08:02:43,746 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2023-11-19 08:02:43,746 INFO L495 AbstractCegarLoop]: Abstraction has has 56 places, 52 transitions, 171 flow [2023-11-19 08:02:43,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:43,747 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:43,747 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:43,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 08:02:43,748 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 08:02:43,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:43,748 INFO L85 PathProgramCache]: Analyzing trace with hash 940425217, now seen corresponding path program 1 times [2023-11-19 08:02:43,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:43,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648761286] [2023-11-19 08:02:43,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:43,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:43,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:02:43,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:43,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648761286] [2023-11-19 08:02:43,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648761286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:43,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:43,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:02:43,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273032784] [2023-11-19 08:02:43,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:43,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 08:02:43,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:43,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 08:02:43,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 08:02:43,900 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 186 out of 353 [2023-11-19 08:02:43,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 52 transitions, 171 flow. Second operand has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:43,901 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:43,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 186 of 353 [2023-11-19 08:02:43,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:02:47,835 INFO L124 PetriNetUnfolderBase]: 27653/43000 cut-off events. [2023-11-19 08:02:47,835 INFO L125 PetriNetUnfolderBase]: For 7139/11675 co-relation queries the response was YES. [2023-11-19 08:02:47,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92839 conditions, 43000 events. 27653/43000 cut-off events. For 7139/11675 co-relation queries the response was YES. Maximal size of possible extension queue 1259. Compared 321497 event pairs, 12477 based on Foata normal form. 3155/43762 useless extension candidates. Maximal degree in co-relation 92830. Up to 19285 conditions per place. [2023-11-19 08:02:48,100 INFO L140 encePairwiseOnDemand]: 348/353 looper letters, 78 selfloop transitions, 4 changer transitions 0/96 dead transitions. [2023-11-19 08:02:48,100 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 96 transitions, 453 flow [2023-11-19 08:02:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 08:02:48,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-19 08:02:48,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 819 transitions. [2023-11-19 08:02:48,104 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.580028328611898 [2023-11-19 08:02:48,104 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 819 transitions. [2023-11-19 08:02:48,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 819 transitions. [2023-11-19 08:02:48,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:02:48,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 819 transitions. [2023-11-19 08:02:48,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 204.75) internal successors, (819), 4 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,111 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 353.0) internal successors, (1765), 5 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,111 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 353.0) internal successors, (1765), 5 states have internal predecessors, (1765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,112 INFO L175 Difference]: Start difference. First operand has 56 places, 52 transitions, 171 flow. Second operand 4 states and 819 transitions. [2023-11-19 08:02:48,112 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 96 transitions, 453 flow [2023-11-19 08:02:48,169 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 96 transitions, 443 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:02:48,171 INFO L231 Difference]: Finished difference. Result has 59 places, 53 transitions, 183 flow [2023-11-19 08:02:48,172 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=165, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=183, PETRI_PLACES=59, PETRI_TRANSITIONS=53} [2023-11-19 08:02:48,172 INFO L281 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2023-11-19 08:02:48,172 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 53 transitions, 183 flow [2023-11-19 08:02:48,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 188.0) internal successors, (752), 4 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,173 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:02:48,173 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:02:48,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 08:02:48,174 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-19 08:02:48,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:02:48,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1000325195, now seen corresponding path program 1 times [2023-11-19 08:02:48,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:02:48,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586694766] [2023-11-19 08:02:48,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:02:48,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:02:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:02:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:02:48,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:02:48,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586694766] [2023-11-19 08:02:48,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586694766] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:02:48,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:02:48,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:02:48,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328941403] [2023-11-19 08:02:48,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:02:48,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:02:48,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:02:48,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:02:48,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:02:48,243 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 353 [2023-11-19 08:02:48,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 53 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:02:48,245 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:02:48,245 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 353 [2023-11-19 08:02:48,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand