./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ --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 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:35:42,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:35:42,707 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:35:42,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:35:42,714 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:35:42,743 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:35:42,744 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:35:42,744 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:35:42,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:35:42,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:35:42,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:35:42,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:35:42,748 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:35:42,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:35:42,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:35:42,750 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:35:42,750 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:35:42,751 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:35:42,751 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:35:42,752 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:35:42,752 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:35:42,758 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:35:42,758 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:35:42,759 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:35:42,759 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:35:42,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:35:42,760 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:35:42,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:35:42,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:35:42,761 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:35:42,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:35:42,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:35:42,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:35:42,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:35:42,763 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:35:42,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:35:42,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:35:42,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:35:42,764 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:35:42,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:35:42,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:35:42,765 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_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fab2e995569cc819974baee7d52d8d4bdabd2a2896c83fb3b8d07b44f394c5b [2023-11-23 22:35:43,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:35:43,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:35:43,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:35:43,088 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:35:43,089 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:35:43,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2023-11-23 22:35:46,247 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:35:46,545 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:35:46,546 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2023-11-23 22:35:46,583 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/data/579c802b8/bef06e7e7e314c518dd8877471b9c311/FLAG0a7c17279 [2023-11-23 22:35:46,598 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/data/579c802b8/bef06e7e7e314c518dd8877471b9c311 [2023-11-23 22:35:46,601 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:35:46,602 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:35:46,604 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:35:46,604 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:35:46,610 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:35:46,611 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:46" (1/1) ... [2023-11-23 22:35:46,612 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1660bf11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:46, skipping insertion in model container [2023-11-23 22:35:46,612 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:46" (1/1) ... [2023-11-23 22:35:46,669 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:35:46,893 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 22:35:47,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:35:47,082 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:35:47,105 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 22:35:47,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:35:47,206 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:35:47,207 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:35:47,207 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:35:47,215 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:35:47,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47 WrapperNode [2023-11-23 22:35:47,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:35:47,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:35:47,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:35:47,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:35:47,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (1/1) ... [2023-11-23 22:35:47,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (1/1) ... [2023-11-23 22:35:47,297 INFO L138 Inliner]: procedures = 175, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 180 [2023-11-23 22:35:47,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:35:47,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:35:47,299 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:35:47,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:35:47,310 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (1/1) ... [2023-11-23 22:35:47,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (1/1) ... [2023-11-23 22:35:47,316 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (1/1) ... [2023-11-23 22:35:47,316 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (1/1) ... [2023-11-23 22:35:47,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (1/1) ... [2023-11-23 22:35:47,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (1/1) ... [2023-11-23 22:35:47,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (1/1) ... [2023-11-23 22:35:47,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (1/1) ... [2023-11-23 22:35:47,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:35:47,362 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:35:47,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:35:47,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:35:47,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (1/1) ... [2023-11-23 22:35:47,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:35:47,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:47,397 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:35:47,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:35:47,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:35:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:35:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 22:35:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:35:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2023-11-23 22:35:47,451 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2023-11-23 22:35:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:35:47,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:35:47,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:35:47,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 22:35:47,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:35:47,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:35:47,453 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2023-11-23 22:35:47,453 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2023-11-23 22:35:47,455 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:35:47,699 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:35:47,705 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:35:48,130 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:35:48,278 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:35:48,278 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 22:35:48,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:48 BoogieIcfgContainer [2023-11-23 22:35:48,280 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:35:48,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:35:48,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:35:48,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:35:48,291 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:35:46" (1/3) ... [2023-11-23 22:35:48,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d79d73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:48, skipping insertion in model container [2023-11-23 22:35:48,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:47" (2/3) ... [2023-11-23 22:35:48,297 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d79d73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:48, skipping insertion in model container [2023-11-23 22:35:48,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:48" (3/3) ... [2023-11-23 22:35:48,301 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2023-11-23 22:35:48,309 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:35:48,318 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:35:48,319 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-23 22:35:48,319 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:35:48,435 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-23 22:35:48,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 176 transitions, 380 flow [2023-11-23 22:35:48,660 INFO L124 PetriNetUnfolderBase]: 4/172 cut-off events. [2023-11-23 22:35:48,660 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-23 22:35:48,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 189 conditions, 172 events. 4/172 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 293 event pairs, 0 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2023-11-23 22:35:48,669 INFO L82 GeneralOperation]: Start removeDead. Operand has 185 places, 176 transitions, 380 flow [2023-11-23 22:35:48,677 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 158 transitions, 337 flow [2023-11-23 22:35:48,717 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:35:48,757 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;@778a168a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:35:48,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-23 22:35:48,776 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:35:48,776 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-23 22:35:48,777 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:35:48,777 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:35:48,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:48,778 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:35:48,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:48,787 INFO L85 PathProgramCache]: Analyzing trace with hash 111403614, now seen corresponding path program 1 times [2023-11-23 22:35:48,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:48,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338822994] [2023-11-23 22:35:48,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:48,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:49,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:35:49,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:49,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338822994] [2023-11-23 22:35:49,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338822994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:49,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:49,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 22:35:49,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813437181] [2023-11-23 22:35:49,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:49,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:35:49,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:49,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:35:49,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:35:49,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 176 [2023-11-23 22:35:49,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 158 transitions, 337 flow. Second operand has 2 states, 2 states have (on average 123.0) internal successors, (246), 2 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:49,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:35:49,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 176 [2023-11-23 22:35:49,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:35:50,133 INFO L124 PetriNetUnfolderBase]: 1464/3448 cut-off events. [2023-11-23 22:35:50,134 INFO L125 PetriNetUnfolderBase]: For 613/613 co-relation queries the response was YES. [2023-11-23 22:35:50,157 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5972 conditions, 3448 events. 1464/3448 cut-off events. For 613/613 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 29052 event pairs, 1464 based on Foata normal form. 336/3436 useless extension candidates. Maximal degree in co-relation 5682. Up to 2168 conditions per place. [2023-11-23 22:35:50,198 INFO L140 encePairwiseOnDemand]: 146/176 looper letters, 23 selfloop transitions, 0 changer transitions 0/124 dead transitions. [2023-11-23 22:35:50,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 124 transitions, 315 flow [2023-11-23 22:35:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:35:50,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-23 22:35:50,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 297 transitions. [2023-11-23 22:35:50,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.84375 [2023-11-23 22:35:50,225 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 297 transitions. [2023-11-23 22:35:50,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 297 transitions. [2023-11-23 22:35:50,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:35:50,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 297 transitions. [2023-11-23 22:35:50,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 148.5) internal successors, (297), 2 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:50,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:50,248 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:50,250 INFO L175 Difference]: Start difference. First operand has 167 places, 158 transitions, 337 flow. Second operand 2 states and 297 transitions. [2023-11-23 22:35:50,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 124 transitions, 315 flow [2023-11-23 22:35:50,259 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 124 transitions, 302 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-23 22:35:50,264 INFO L231 Difference]: Finished difference. Result has 131 places, 124 transitions, 256 flow [2023-11-23 22:35:50,267 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=131, PETRI_TRANSITIONS=124} [2023-11-23 22:35:50,272 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -36 predicate places. [2023-11-23 22:35:50,273 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 124 transitions, 256 flow [2023-11-23 22:35:50,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 123.0) internal successors, (246), 2 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:50,274 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:35:50,274 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:50,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:35:50,276 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:35:50,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:50,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1948344611, now seen corresponding path program 1 times [2023-11-23 22:35:50,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:50,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48166226] [2023-11-23 22:35:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:50,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:50,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:35:50,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:50,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48166226] [2023-11-23 22:35:50,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48166226] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:50,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:50,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:35:50,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28598736] [2023-11-23 22:35:50,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:50,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:35:50,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:50,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:35:50,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:50,527 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 176 [2023-11-23 22:35:50,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 124 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:50,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:35:50,529 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 176 [2023-11-23 22:35:50,529 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:35:52,847 INFO L124 PetriNetUnfolderBase]: 5880/12038 cut-off events. [2023-11-23 22:35:52,847 INFO L125 PetriNetUnfolderBase]: For 231/399 co-relation queries the response was YES. [2023-11-23 22:35:52,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21035 conditions, 12038 events. 5880/12038 cut-off events. For 231/399 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 111561 event pairs, 4028 based on Foata normal form. 0/10988 useless extension candidates. Maximal degree in co-relation 21032. Up to 6922 conditions per place. [2023-11-23 22:35:52,992 INFO L140 encePairwiseOnDemand]: 167/176 looper letters, 41 selfloop transitions, 8 changer transitions 0/144 dead transitions. [2023-11-23 22:35:52,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 144 transitions, 398 flow [2023-11-23 22:35:52,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:35:52,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:35:52,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 398 transitions. [2023-11-23 22:35:52,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7537878787878788 [2023-11-23 22:35:52,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 398 transitions. [2023-11-23 22:35:52,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 398 transitions. [2023-11-23 22:35:52,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:35:52,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 398 transitions. [2023-11-23 22:35:52,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 132.66666666666666) internal successors, (398), 3 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:53,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:53,001 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:53,001 INFO L175 Difference]: Start difference. First operand has 131 places, 124 transitions, 256 flow. Second operand 3 states and 398 transitions. [2023-11-23 22:35:53,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 144 transitions, 398 flow [2023-11-23 22:35:53,003 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 144 transitions, 398 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:35:53,007 INFO L231 Difference]: Finished difference. Result has 135 places, 131 transitions, 318 flow [2023-11-23 22:35:53,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=135, PETRI_TRANSITIONS=131} [2023-11-23 22:35:53,008 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -32 predicate places. [2023-11-23 22:35:53,009 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 131 transitions, 318 flow [2023-11-23 22:35:53,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:53,009 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:35:53,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:53,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:35:53,010 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:35:53,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:53,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1355243053, now seen corresponding path program 1 times [2023-11-23 22:35:53,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:53,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402525136] [2023-11-23 22:35:53,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:53,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:53,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:35:53,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:53,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402525136] [2023-11-23 22:35:53,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402525136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:53,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:53,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:35:53,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684199041] [2023-11-23 22:35:53,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:53,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:35:53,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:53,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:35:53,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:35:53,348 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 176 [2023-11-23 22:35:53,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 131 transitions, 318 flow. Second operand has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:53,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:35:53,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 176 [2023-11-23 22:35:53,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:35:55,553 INFO L124 PetriNetUnfolderBase]: 5186/12272 cut-off events. [2023-11-23 22:35:55,554 INFO L125 PetriNetUnfolderBase]: For 2454/2775 co-relation queries the response was YES. [2023-11-23 22:35:55,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24252 conditions, 12272 events. 5186/12272 cut-off events. For 2454/2775 co-relation queries the response was YES. Maximal size of possible extension queue 755. Compared 125953 event pairs, 1905 based on Foata normal form. 139/11283 useless extension candidates. Maximal degree in co-relation 24247. Up to 4541 conditions per place. [2023-11-23 22:35:55,906 INFO L140 encePairwiseOnDemand]: 166/176 looper letters, 61 selfloop transitions, 14 changer transitions 1/177 dead transitions. [2023-11-23 22:35:55,907 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 177 transitions, 605 flow [2023-11-23 22:35:55,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:35:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-23 22:35:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 669 transitions. [2023-11-23 22:35:55,911 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7602272727272728 [2023-11-23 22:35:55,911 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 669 transitions. [2023-11-23 22:35:55,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 669 transitions. [2023-11-23 22:35:55,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:35:55,913 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 669 transitions. [2023-11-23 22:35:55,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 133.8) internal successors, (669), 5 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:55,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:55,921 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:55,921 INFO L175 Difference]: Start difference. First operand has 135 places, 131 transitions, 318 flow. Second operand 5 states and 669 transitions. [2023-11-23 22:35:55,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 177 transitions, 605 flow [2023-11-23 22:35:55,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 177 transitions, 581 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:35:55,970 INFO L231 Difference]: Finished difference. Result has 140 places, 142 transitions, 390 flow [2023-11-23 22:35:55,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=390, PETRI_PLACES=140, PETRI_TRANSITIONS=142} [2023-11-23 22:35:55,973 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -27 predicate places. [2023-11-23 22:35:55,973 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 142 transitions, 390 flow [2023-11-23 22:35:55,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 121.4) internal successors, (607), 5 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:55,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:35:55,974 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:55,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:35:55,975 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:35:55,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:55,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2046757835, now seen corresponding path program 2 times [2023-11-23 22:35:55,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:55,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35432477] [2023-11-23 22:35:55,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:55,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:56,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:35:56,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:56,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35432477] [2023-11-23 22:35:56,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35432477] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:56,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:56,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:35:56,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853353304] [2023-11-23 22:35:56,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:56,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:35:56,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:56,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:35:56,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:56,077 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 176 [2023-11-23 22:35:56,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 142 transitions, 390 flow. Second operand has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:56,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:35:56,079 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 176 [2023-11-23 22:35:56,079 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:35:56,870 INFO L124 PetriNetUnfolderBase]: 1275/4161 cut-off events. [2023-11-23 22:35:56,871 INFO L125 PetriNetUnfolderBase]: For 1830/1830 co-relation queries the response was YES. [2023-11-23 22:35:56,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8313 conditions, 4161 events. 1275/4161 cut-off events. For 1830/1830 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 38639 event pairs, 342 based on Foata normal form. 147/3935 useless extension candidates. Maximal degree in co-relation 8306. Up to 994 conditions per place. [2023-11-23 22:35:56,918 INFO L140 encePairwiseOnDemand]: 170/176 looper letters, 43 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2023-11-23 22:35:56,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 150 transitions, 506 flow [2023-11-23 22:35:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:35:56,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:35:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 406 transitions. [2023-11-23 22:35:56,922 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7689393939393939 [2023-11-23 22:35:56,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 406 transitions. [2023-11-23 22:35:56,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 406 transitions. [2023-11-23 22:35:56,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:35:56,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 406 transitions. [2023-11-23 22:35:56,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 135.33333333333334) internal successors, (406), 3 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:56,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:56,928 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:56,928 INFO L175 Difference]: Start difference. First operand has 140 places, 142 transitions, 390 flow. Second operand 3 states and 406 transitions. [2023-11-23 22:35:56,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 150 transitions, 506 flow [2023-11-23 22:35:56,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 150 transitions, 499 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:35:56,939 INFO L231 Difference]: Finished difference. Result has 140 places, 135 transitions, 365 flow [2023-11-23 22:35:56,940 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=365, PETRI_PLACES=140, PETRI_TRANSITIONS=135} [2023-11-23 22:35:56,942 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -27 predicate places. [2023-11-23 22:35:56,943 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 135 transitions, 365 flow [2023-11-23 22:35:56,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.0) internal successors, (369), 3 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:56,943 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:35:56,944 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:56,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:35:56,944 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:35:56,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:56,945 INFO L85 PathProgramCache]: Analyzing trace with hash 631503694, now seen corresponding path program 1 times [2023-11-23 22:35:56,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:56,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235158309] [2023-11-23 22:35:56,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:56,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:57,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:35:57,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:57,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235158309] [2023-11-23 22:35:57,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235158309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:57,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:57,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:35:57,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822955518] [2023-11-23 22:35:57,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:57,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:35:57,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:57,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:35:57,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:57,038 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 176 [2023-11-23 22:35:57,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 135 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:57,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:35:57,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 176 [2023-11-23 22:35:57,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:35:58,058 INFO L124 PetriNetUnfolderBase]: 2726/5878 cut-off events. [2023-11-23 22:35:58,059 INFO L125 PetriNetUnfolderBase]: For 2893/2918 co-relation queries the response was YES. [2023-11-23 22:35:58,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13180 conditions, 5878 events. 2726/5878 cut-off events. For 2893/2918 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 52317 event pairs, 1757 based on Foata normal form. 2/5489 useless extension candidates. Maximal degree in co-relation 13173. Up to 3612 conditions per place. [2023-11-23 22:35:58,146 INFO L140 encePairwiseOnDemand]: 168/176 looper letters, 47 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2023-11-23 22:35:58,146 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 150 transitions, 519 flow [2023-11-23 22:35:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:35:58,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:35:58,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2023-11-23 22:35:58,149 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7443181818181818 [2023-11-23 22:35:58,149 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 393 transitions. [2023-11-23 22:35:58,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 393 transitions. [2023-11-23 22:35:58,150 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:35:58,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 393 transitions. [2023-11-23 22:35:58,152 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:58,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:58,154 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 176.0) internal successors, (704), 4 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:58,155 INFO L175 Difference]: Start difference. First operand has 140 places, 135 transitions, 365 flow. Second operand 3 states and 393 transitions. [2023-11-23 22:35:58,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 150 transitions, 519 flow [2023-11-23 22:35:58,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 150 transitions, 507 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:35:58,163 INFO L231 Difference]: Finished difference. Result has 142 places, 141 transitions, 415 flow [2023-11-23 22:35:58,164 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=142, PETRI_TRANSITIONS=141} [2023-11-23 22:35:58,167 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -25 predicate places. [2023-11-23 22:35:58,168 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 141 transitions, 415 flow [2023-11-23 22:35:58,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:58,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:35:58,169 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:58,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:35:58,170 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:35:58,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:58,172 INFO L85 PathProgramCache]: Analyzing trace with hash 529509236, now seen corresponding path program 1 times [2023-11-23 22:35:58,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:58,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080183947] [2023-11-23 22:35:58,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:58,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:58,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:35:58,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:58,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080183947] [2023-11-23 22:35:58,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080183947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:58,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:58,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:35:58,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910122720] [2023-11-23 22:35:58,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:58,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:35:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:58,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:35:58,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:35:59,097 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 176 [2023-11-23 22:35:59,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 141 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 113.83333333333333) internal successors, (683), 6 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:35:59,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:35:59,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 176 [2023-11-23 22:35:59,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:36:02,015 INFO L124 PetriNetUnfolderBase]: 9360/18406 cut-off events. [2023-11-23 22:36:02,015 INFO L125 PetriNetUnfolderBase]: For 15813/16540 co-relation queries the response was YES. [2023-11-23 22:36:02,132 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44823 conditions, 18406 events. 9360/18406 cut-off events. For 15813/16540 co-relation queries the response was YES. Maximal size of possible extension queue 982. Compared 166250 event pairs, 668 based on Foata normal form. 2/17007 useless extension candidates. Maximal degree in co-relation 44815. Up to 5626 conditions per place. [2023-11-23 22:36:02,265 INFO L140 encePairwiseOnDemand]: 171/176 looper letters, 160 selfloop transitions, 4 changer transitions 0/260 dead transitions. [2023-11-23 22:36:02,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 260 transitions, 1333 flow [2023-11-23 22:36:02,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:36:02,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:36:02,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 767 transitions. [2023-11-23 22:36:02,270 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7263257575757576 [2023-11-23 22:36:02,271 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 767 transitions. [2023-11-23 22:36:02,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 767 transitions. [2023-11-23 22:36:02,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:02,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 767 transitions. [2023-11-23 22:36:02,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 127.83333333333333) internal successors, (767), 6 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:02,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:02,283 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:02,283 INFO L175 Difference]: Start difference. First operand has 142 places, 141 transitions, 415 flow. Second operand 6 states and 767 transitions. [2023-11-23 22:36:02,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 260 transitions, 1333 flow [2023-11-23 22:36:02,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 260 transitions, 1247 flow, removed 20 selfloop flow, removed 2 redundant places. [2023-11-23 22:36:02,310 INFO L231 Difference]: Finished difference. Result has 144 places, 140 transitions, 399 flow [2023-11-23 22:36:02,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=399, PETRI_PLACES=144, PETRI_TRANSITIONS=140} [2023-11-23 22:36:02,314 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -23 predicate places. [2023-11-23 22:36:02,315 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 140 transitions, 399 flow [2023-11-23 22:36:02,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 113.83333333333333) internal successors, (683), 6 states have internal predecessors, (683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:02,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:36:02,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:02,316 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:36:02,317 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:36:02,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:02,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1476075770, now seen corresponding path program 1 times [2023-11-23 22:36:02,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:02,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007786255] [2023-11-23 22:36:02,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:02,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:02,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:36:02,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:02,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007786255] [2023-11-23 22:36:02,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007786255] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:02,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:02,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:36:02,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217513579] [2023-11-23 22:36:02,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:36:02,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:36:02,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:02,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:36:02,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:36:02,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 176 [2023-11-23 22:36:02,569 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 140 transitions, 399 flow. Second operand has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:02,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:36:02,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 176 [2023-11-23 22:36:02,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:36:03,323 INFO L124 PetriNetUnfolderBase]: 798/3163 cut-off events. [2023-11-23 22:36:03,324 INFO L125 PetriNetUnfolderBase]: For 1955/1968 co-relation queries the response was YES. [2023-11-23 22:36:03,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6361 conditions, 3163 events. 798/3163 cut-off events. For 1955/1968 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 29156 event pairs, 160 based on Foata normal form. 152/3134 useless extension candidates. Maximal degree in co-relation 6353. Up to 590 conditions per place. [2023-11-23 22:36:03,360 INFO L140 encePairwiseOnDemand]: 167/176 looper letters, 73 selfloop transitions, 19 changer transitions 0/193 dead transitions. [2023-11-23 22:36:03,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 193 transitions, 791 flow [2023-11-23 22:36:03,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:36:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-23 22:36:03,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 684 transitions. [2023-11-23 22:36:03,364 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7772727272727272 [2023-11-23 22:36:03,364 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 684 transitions. [2023-11-23 22:36:03,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 684 transitions. [2023-11-23 22:36:03,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:03,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 684 transitions. [2023-11-23 22:36:03,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 136.8) internal successors, (684), 5 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) [2023-11-23 22:36:03,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:03,371 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 176.0) internal successors, (1056), 6 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:03,375 INFO L175 Difference]: Start difference. First operand has 144 places, 140 transitions, 399 flow. Second operand 5 states and 684 transitions. [2023-11-23 22:36:03,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 193 transitions, 791 flow [2023-11-23 22:36:03,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 193 transitions, 784 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 22:36:03,383 INFO L231 Difference]: Finished difference. Result has 146 places, 152 transitions, 513 flow [2023-11-23 22:36:03,383 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=513, PETRI_PLACES=146, PETRI_TRANSITIONS=152} [2023-11-23 22:36:03,385 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -21 predicate places. [2023-11-23 22:36:03,385 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 152 transitions, 513 flow [2023-11-23 22:36:03,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 122.0) internal successors, (610), 5 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:03,386 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:36:03,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:03,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:36:03,388 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:36:03,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:03,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1283304898, now seen corresponding path program 1 times [2023-11-23 22:36:03,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:03,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368043463] [2023-11-23 22:36:03,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:03,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:03,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:03,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:36:03,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:03,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368043463] [2023-11-23 22:36:03,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368043463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:03,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:03,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:36:03,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49929800] [2023-11-23 22:36:03,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:36:03,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:36:03,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:03,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:36:03,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:36:03,704 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 176 [2023-11-23 22:36:03,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 152 transitions, 513 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:03,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:36:03,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 176 [2023-11-23 22:36:03,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:36:04,228 INFO L124 PetriNetUnfolderBase]: 804/3087 cut-off events. [2023-11-23 22:36:04,228 INFO L125 PetriNetUnfolderBase]: For 3193/3215 co-relation queries the response was YES. [2023-11-23 22:36:04,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7011 conditions, 3087 events. 804/3087 cut-off events. For 3193/3215 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 28215 event pairs, 341 based on Foata normal form. 21/2869 useless extension candidates. Maximal degree in co-relation 7001. Up to 968 conditions per place. [2023-11-23 22:36:04,256 INFO L140 encePairwiseOnDemand]: 166/176 looper letters, 69 selfloop transitions, 22 changer transitions 0/192 dead transitions. [2023-11-23 22:36:04,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 192 transitions, 866 flow [2023-11-23 22:36:04,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:36:04,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:36:04,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 793 transitions. [2023-11-23 22:36:04,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7509469696969697 [2023-11-23 22:36:04,262 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 793 transitions. [2023-11-23 22:36:04,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 793 transitions. [2023-11-23 22:36:04,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:04,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 793 transitions. [2023-11-23 22:36:04,266 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:04,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:04,270 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:04,270 INFO L175 Difference]: Start difference. First operand has 146 places, 152 transitions, 513 flow. Second operand 6 states and 793 transitions. [2023-11-23 22:36:04,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 192 transitions, 866 flow [2023-11-23 22:36:04,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 192 transitions, 842 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-11-23 22:36:04,281 INFO L231 Difference]: Finished difference. Result has 152 places, 158 transitions, 593 flow [2023-11-23 22:36:04,281 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=493, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=593, PETRI_PLACES=152, PETRI_TRANSITIONS=158} [2023-11-23 22:36:04,282 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -15 predicate places. [2023-11-23 22:36:04,282 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 158 transitions, 593 flow [2023-11-23 22:36:04,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:04,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:36:04,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:04,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:36:04,284 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:36:04,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:04,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1237125082, now seen corresponding path program 2 times [2023-11-23 22:36:04,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:04,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666778583] [2023-11-23 22:36:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:04,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:04,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:36:04,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:04,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666778583] [2023-11-23 22:36:04,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666778583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:04,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:04,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:36:04,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902035009] [2023-11-23 22:36:04,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:36:04,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:36:04,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:04,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:36:04,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:36:04,491 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 176 [2023-11-23 22:36:04,492 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 158 transitions, 593 flow. Second operand has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:04,492 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:36:04,492 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 176 [2023-11-23 22:36:04,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:36:04,945 INFO L124 PetriNetUnfolderBase]: 670/2411 cut-off events. [2023-11-23 22:36:04,945 INFO L125 PetriNetUnfolderBase]: For 3383/3401 co-relation queries the response was YES. [2023-11-23 22:36:04,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5892 conditions, 2411 events. 670/2411 cut-off events. For 3383/3401 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 21227 event pairs, 368 based on Foata normal form. 27/2299 useless extension candidates. Maximal degree in co-relation 5880. Up to 864 conditions per place. [2023-11-23 22:36:04,971 INFO L140 encePairwiseOnDemand]: 166/176 looper letters, 73 selfloop transitions, 26 changer transitions 0/200 dead transitions. [2023-11-23 22:36:04,971 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 200 transitions, 977 flow [2023-11-23 22:36:04,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:36:04,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:36:04,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 799 transitions. [2023-11-23 22:36:04,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7566287878787878 [2023-11-23 22:36:04,976 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 799 transitions. [2023-11-23 22:36:04,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 799 transitions. [2023-11-23 22:36:04,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:04,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 799 transitions. [2023-11-23 22:36:04,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 133.16666666666666) internal successors, (799), 6 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:04,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:04,983 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:04,984 INFO L175 Difference]: Start difference. First operand has 152 places, 158 transitions, 593 flow. Second operand 6 states and 799 transitions. [2023-11-23 22:36:04,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 200 transitions, 977 flow [2023-11-23 22:36:04,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 200 transitions, 931 flow, removed 6 selfloop flow, removed 3 redundant places. [2023-11-23 22:36:04,994 INFO L231 Difference]: Finished difference. Result has 156 places, 164 transitions, 679 flow [2023-11-23 22:36:04,994 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=551, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=679, PETRI_PLACES=156, PETRI_TRANSITIONS=164} [2023-11-23 22:36:04,995 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -11 predicate places. [2023-11-23 22:36:04,995 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 164 transitions, 679 flow [2023-11-23 22:36:04,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:04,996 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:36:04,996 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:04,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:36:04,997 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:36:04,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:04,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1145141880, now seen corresponding path program 1 times [2023-11-23 22:36:04,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:04,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383138108] [2023-11-23 22:36:04,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:04,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:05,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:05,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:36:05,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:05,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383138108] [2023-11-23 22:36:05,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383138108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:05,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:05,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:36:05,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682090791] [2023-11-23 22:36:05,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:36:05,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:36:05,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:05,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:36:05,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:36:05,910 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 176 [2023-11-23 22:36:05,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 164 transitions, 679 flow. Second operand has 6 states, 6 states have (on average 114.33333333333333) internal successors, (686), 6 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:05,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:36:05,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 176 [2023-11-23 22:36:05,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:36:06,807 INFO L124 PetriNetUnfolderBase]: 2129/5183 cut-off events. [2023-11-23 22:36:06,808 INFO L125 PetriNetUnfolderBase]: For 9276/9329 co-relation queries the response was YES. [2023-11-23 22:36:06,832 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13918 conditions, 5183 events. 2129/5183 cut-off events. For 9276/9329 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 41971 event pairs, 444 based on Foata normal form. 4/4974 useless extension candidates. Maximal degree in co-relation 13904. Up to 1118 conditions per place. [2023-11-23 22:36:06,852 INFO L140 encePairwiseOnDemand]: 171/176 looper letters, 176 selfloop transitions, 4 changer transitions 0/275 dead transitions. [2023-11-23 22:36:06,852 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 275 transitions, 1705 flow [2023-11-23 22:36:06,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:36:06,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:36:06,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 759 transitions. [2023-11-23 22:36:06,857 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.71875 [2023-11-23 22:36:06,857 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 759 transitions. [2023-11-23 22:36:06,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 759 transitions. [2023-11-23 22:36:06,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:06,858 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 759 transitions. [2023-11-23 22:36:06,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:06,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:06,865 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:06,865 INFO L175 Difference]: Start difference. First operand has 156 places, 164 transitions, 679 flow. Second operand 6 states and 759 transitions. [2023-11-23 22:36:06,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 275 transitions, 1705 flow [2023-11-23 22:36:06,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 275 transitions, 1655 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-11-23 22:36:06,883 INFO L231 Difference]: Finished difference. Result has 158 places, 163 transitions, 651 flow [2023-11-23 22:36:06,884 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=643, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=651, PETRI_PLACES=158, PETRI_TRANSITIONS=163} [2023-11-23 22:36:06,884 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -9 predicate places. [2023-11-23 22:36:06,885 INFO L495 AbstractCegarLoop]: Abstraction has has 158 places, 163 transitions, 651 flow [2023-11-23 22:36:06,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.33333333333333) internal successors, (686), 6 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:06,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:36:06,886 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:06,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 22:36:06,886 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:36:06,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:06,887 INFO L85 PathProgramCache]: Analyzing trace with hash -427613615, now seen corresponding path program 1 times [2023-11-23 22:36:06,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:06,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789367855] [2023-11-23 22:36:06,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:06,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:07,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:36:07,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:07,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789367855] [2023-11-23 22:36:07,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789367855] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:07,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:07,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:36:07,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410163740] [2023-11-23 22:36:07,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:36:07,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:36:07,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:07,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:36:07,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:36:07,098 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 176 [2023-11-23 22:36:07,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 163 transitions, 651 flow. Second operand has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:07,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:36:07,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 176 [2023-11-23 22:36:07,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:36:07,787 INFO L124 PetriNetUnfolderBase]: 706/2737 cut-off events. [2023-11-23 22:36:07,788 INFO L125 PetriNetUnfolderBase]: For 3900/3917 co-relation queries the response was YES. [2023-11-23 22:36:07,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6439 conditions, 2737 events. 706/2737 cut-off events. For 3900/3917 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 24948 event pairs, 155 based on Foata normal form. 45/2639 useless extension candidates. Maximal degree in co-relation 6425. Up to 700 conditions per place. [2023-11-23 22:36:07,816 INFO L140 encePairwiseOnDemand]: 167/176 looper letters, 74 selfloop transitions, 37 changer transitions 0/211 dead transitions. [2023-11-23 22:36:07,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 211 transitions, 1082 flow [2023-11-23 22:36:07,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:36:07,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:36:07,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 809 transitions. [2023-11-23 22:36:07,821 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7660984848484849 [2023-11-23 22:36:07,821 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 809 transitions. [2023-11-23 22:36:07,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 809 transitions. [2023-11-23 22:36:07,822 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:07,822 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 809 transitions. [2023-11-23 22:36:07,825 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 134.83333333333334) internal successors, (809), 6 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:07,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:07,829 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:07,829 INFO L175 Difference]: Start difference. First operand has 158 places, 163 transitions, 651 flow. Second operand 6 states and 809 transitions. [2023-11-23 22:36:07,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 211 transitions, 1082 flow [2023-11-23 22:36:07,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 211 transitions, 1075 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-23 22:36:07,843 INFO L231 Difference]: Finished difference. Result has 160 places, 169 transitions, 800 flow [2023-11-23 22:36:07,843 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=800, PETRI_PLACES=160, PETRI_TRANSITIONS=169} [2023-11-23 22:36:07,844 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -7 predicate places. [2023-11-23 22:36:07,844 INFO L495 AbstractCegarLoop]: Abstraction has has 160 places, 169 transitions, 800 flow [2023-11-23 22:36:07,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:07,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:36:07,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:07,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 22:36:07,846 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:36:07,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:07,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1477976529, now seen corresponding path program 2 times [2023-11-23 22:36:07,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:07,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256681191] [2023-11-23 22:36:07,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:07,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:36:08,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:08,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256681191] [2023-11-23 22:36:08,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256681191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:08,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:08,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:36:08,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776156378] [2023-11-23 22:36:08,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:36:08,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:36:08,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:08,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:36:08,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:36:08,125 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 176 [2023-11-23 22:36:08,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 169 transitions, 800 flow. Second operand has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:08,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:36:08,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 176 [2023-11-23 22:36:08,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:36:08,619 INFO L124 PetriNetUnfolderBase]: 502/1950 cut-off events. [2023-11-23 22:36:08,619 INFO L125 PetriNetUnfolderBase]: For 4564/4573 co-relation queries the response was YES. [2023-11-23 22:36:08,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5071 conditions, 1950 events. 502/1950 cut-off events. For 4564/4573 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 16547 event pairs, 73 based on Foata normal form. 37/1867 useless extension candidates. Maximal degree in co-relation 5056. Up to 395 conditions per place. [2023-11-23 22:36:08,641 INFO L140 encePairwiseOnDemand]: 167/176 looper letters, 58 selfloop transitions, 31 changer transitions 0/183 dead transitions. [2023-11-23 22:36:08,641 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 163 places, 183 transitions, 1013 flow [2023-11-23 22:36:08,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:36:08,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:36:08,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 793 transitions. [2023-11-23 22:36:08,645 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7509469696969697 [2023-11-23 22:36:08,646 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 793 transitions. [2023-11-23 22:36:08,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 793 transitions. [2023-11-23 22:36:08,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:08,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 793 transitions. [2023-11-23 22:36:08,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 132.16666666666666) internal successors, (793), 6 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:08,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:08,653 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:08,654 INFO L175 Difference]: Start difference. First operand has 160 places, 169 transitions, 800 flow. Second operand 6 states and 793 transitions. [2023-11-23 22:36:08,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 163 places, 183 transitions, 1013 flow [2023-11-23 22:36:08,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 183 transitions, 934 flow, removed 15 selfloop flow, removed 6 redundant places. [2023-11-23 22:36:08,673 INFO L231 Difference]: Finished difference. Result has 157 places, 151 transitions, 703 flow [2023-11-23 22:36:08,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=623, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=703, PETRI_PLACES=157, PETRI_TRANSITIONS=151} [2023-11-23 22:36:08,674 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -10 predicate places. [2023-11-23 22:36:08,675 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 151 transitions, 703 flow [2023-11-23 22:36:08,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.83333333333333) internal successors, (737), 6 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:08,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:36:08,676 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:08,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 22:36:08,676 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:36:08,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:08,677 INFO L85 PathProgramCache]: Analyzing trace with hash 610510559, now seen corresponding path program 1 times [2023-11-23 22:36:08,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:08,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162489649] [2023-11-23 22:36:08,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:08,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:09,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:36:09,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:09,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162489649] [2023-11-23 22:36:09,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162489649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:09,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:09,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:36:09,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647899564] [2023-11-23 22:36:09,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:36:09,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:36:09,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:09,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:36:09,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:36:09,546 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 176 [2023-11-23 22:36:09,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 151 transitions, 703 flow. Second operand has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:09,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:36:09,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 176 [2023-11-23 22:36:09,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:36:10,205 INFO L124 PetriNetUnfolderBase]: 707/2430 cut-off events. [2023-11-23 22:36:10,205 INFO L125 PetriNetUnfolderBase]: For 5134/5137 co-relation queries the response was YES. [2023-11-23 22:36:10,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6303 conditions, 2430 events. 707/2430 cut-off events. For 5134/5137 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 19584 event pairs, 406 based on Foata normal form. 0/2335 useless extension candidates. Maximal degree in co-relation 6288. Up to 1034 conditions per place. [2023-11-23 22:36:10,234 INFO L140 encePairwiseOnDemand]: 171/176 looper letters, 110 selfloop transitions, 4 changer transitions 0/202 dead transitions. [2023-11-23 22:36:10,234 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 202 transitions, 1333 flow [2023-11-23 22:36:10,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:36:10,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:36:10,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 735 transitions. [2023-11-23 22:36:10,238 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6960227272727273 [2023-11-23 22:36:10,238 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 735 transitions. [2023-11-23 22:36:10,238 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 735 transitions. [2023-11-23 22:36:10,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:10,239 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 735 transitions. [2023-11-23 22:36:10,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 122.5) internal successors, (735), 6 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:10,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:10,246 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:10,246 INFO L175 Difference]: Start difference. First operand has 157 places, 151 transitions, 703 flow. Second operand 6 states and 735 transitions. [2023-11-23 22:36:10,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 202 transitions, 1333 flow [2023-11-23 22:36:10,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 202 transitions, 1251 flow, removed 6 selfloop flow, removed 4 redundant places. [2023-11-23 22:36:10,267 INFO L231 Difference]: Finished difference. Result has 157 places, 150 transitions, 667 flow [2023-11-23 22:36:10,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=667, PETRI_PLACES=157, PETRI_TRANSITIONS=150} [2023-11-23 22:36:10,269 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -10 predicate places. [2023-11-23 22:36:10,269 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 150 transitions, 667 flow [2023-11-23 22:36:10,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:10,270 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:36:10,270 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:10,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 22:36:10,270 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-23 22:36:10,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:10,271 INFO L85 PathProgramCache]: Analyzing trace with hash -992125700, now seen corresponding path program 1 times [2023-11-23 22:36:10,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:10,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992222613] [2023-11-23 22:36:10,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:10,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:10,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:36:10,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:10,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992222613] [2023-11-23 22:36:10,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992222613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:10,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:10,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:36:10,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458427400] [2023-11-23 22:36:10,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:36:10,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:36:10,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:10,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:36:10,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:36:11,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 176 [2023-11-23 22:36:11,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 150 transitions, 667 flow. Second operand has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:11,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:36:11,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 176 [2023-11-23 22:36:11,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:36:11,609 INFO L124 PetriNetUnfolderBase]: 570/2121 cut-off events. [2023-11-23 22:36:11,609 INFO L125 PetriNetUnfolderBase]: For 3431/3434 co-relation queries the response was YES. [2023-11-23 22:36:11,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5206 conditions, 2121 events. 570/2121 cut-off events. For 3431/3434 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 17680 event pairs, 422 based on Foata normal form. 20/2040 useless extension candidates. Maximal degree in co-relation 5192. Up to 1071 conditions per place. [2023-11-23 22:36:11,623 INFO L140 encePairwiseOnDemand]: 171/176 looper letters, 0 selfloop transitions, 0 changer transitions 185/185 dead transitions. [2023-11-23 22:36:11,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 185 transitions, 1107 flow [2023-11-23 22:36:11,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:36:11,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:36:11,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 726 transitions. [2023-11-23 22:36:11,627 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6875 [2023-11-23 22:36:11,627 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 726 transitions. [2023-11-23 22:36:11,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 726 transitions. [2023-11-23 22:36:11,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:11,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 726 transitions. [2023-11-23 22:36:11,630 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.0) internal successors, (726), 6 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:11,633 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:11,634 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 176.0) internal successors, (1232), 7 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:11,634 INFO L175 Difference]: Start difference. First operand has 157 places, 150 transitions, 667 flow. Second operand 6 states and 726 transitions. [2023-11-23 22:36:11,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 185 transitions, 1107 flow [2023-11-23 22:36:11,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 185 transitions, 1087 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:36:11,646 INFO L231 Difference]: Finished difference. Result has 156 places, 0 transitions, 0 flow [2023-11-23 22:36:11,646 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=176, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=156, PETRI_TRANSITIONS=0} [2023-11-23 22:36:11,647 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -11 predicate places. [2023-11-23 22:36:11,647 INFO L495 AbstractCegarLoop]: Abstraction has has 156 places, 0 transitions, 0 flow [2023-11-23 22:36:11,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 116.0) internal successors, (696), 6 states have internal predecessors, (696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:36:11,650 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2023-11-23 22:36:11,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2023-11-23 22:36:11,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2023-11-23 22:36:11,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2023-11-23 22:36:11,651 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2023-11-23 22:36:11,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2023-11-23 22:36:11,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2023-11-23 22:36:11,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2023-11-23 22:36:11,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2023-11-23 22:36:11,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2023-11-23 22:36:11,652 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2023-11-23 22:36:11,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2023-11-23 22:36:11,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2023-11-23 22:36:11,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 50 remaining) [2023-11-23 22:36:11,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 50 remaining) [2023-11-23 22:36:11,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 50 remaining) [2023-11-23 22:36:11,653 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 50 remaining) [2023-11-23 22:36:11,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (32 of 50 remaining) [2023-11-23 22:36:11,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2023-11-23 22:36:11,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2023-11-23 22:36:11,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2023-11-23 22:36:11,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2023-11-23 22:36:11,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2023-11-23 22:36:11,655 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2023-11-23 22:36:11,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2023-11-23 22:36:11,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2023-11-23 22:36:11,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2023-11-23 22:36:11,656 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2023-11-23 22:36:11,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2023-11-23 22:36:11,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2023-11-23 22:36:11,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2023-11-23 22:36:11,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2023-11-23 22:36:11,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2023-11-23 22:36:11,657 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2023-11-23 22:36:11,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2023-11-23 22:36:11,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr4ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2023-11-23 22:36:11,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr5ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2023-11-23 22:36:11,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr6ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2023-11-23 22:36:11,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr7ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2023-11-23 22:36:11,658 INFO L805 garLoopResultBuilder]: Registering result SAFE for location readerErr8ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2023-11-23 22:36:11,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2023-11-23 22:36:11,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2023-11-23 22:36:11,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2023-11-23 22:36:11,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2023-11-23 22:36:11,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2023-11-23 22:36:11,659 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2023-11-23 22:36:11,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2023-11-23 22:36:11,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2023-11-23 22:36:11,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2023-11-23 22:36:11,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2023-11-23 22:36:11,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 22:36:11,662 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:11,670 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 22:36:11,670 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:36:11,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:36:11 BasicIcfg [2023-11-23 22:36:11,677 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:36:11,677 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:36:11,678 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:36:11,678 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:36:11,678 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:48" (3/4) ... [2023-11-23 22:36:11,681 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:36:11,684 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2023-11-23 22:36:11,684 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2023-11-23 22:36:11,691 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-23 22:36:11,691 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 22:36:11,692 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 22:36:11,692 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:36:11,796 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:36:11,799 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:36:11,799 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:36:11,800 INFO L158 Benchmark]: Toolchain (without parser) took 25197.15ms. Allocated memory was 190.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 146.6MB in the beginning and 614.6MB in the end (delta: -467.9MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2023-11-23 22:36:11,800 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 190.8MB. Free memory is still 164.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:36:11,800 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.77ms. Allocated memory is still 190.8MB. Free memory was 146.6MB in the beginning and 125.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 22:36:11,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.20ms. Allocated memory is still 190.8MB. Free memory was 125.7MB in the beginning and 122.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:36:11,801 INFO L158 Benchmark]: Boogie Preprocessor took 63.01ms. Allocated memory is still 190.8MB. Free memory was 122.8MB in the beginning and 120.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:36:11,801 INFO L158 Benchmark]: RCFGBuilder took 917.86ms. Allocated memory is still 190.8MB. Free memory was 120.7MB in the beginning and 93.0MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 22:36:11,802 INFO L158 Benchmark]: TraceAbstraction took 23394.04ms. Allocated memory was 190.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 92.1MB in the beginning and 618.8MB in the end (delta: -526.6MB). Peak memory consumption was 989.3MB. Max. memory is 16.1GB. [2023-11-23 22:36:11,802 INFO L158 Benchmark]: Witness Printer took 121.47ms. Allocated memory is still 1.7GB. Free memory was 618.8MB in the beginning and 614.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 22:36:11,804 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 190.8MB. Free memory is still 164.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 612.77ms. Allocated memory is still 190.8MB. Free memory was 146.6MB in the beginning and 125.7MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.20ms. Allocated memory is still 190.8MB. Free memory was 125.7MB in the beginning and 122.8MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.01ms. Allocated memory is still 190.8MB. Free memory was 122.8MB in the beginning and 120.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 917.86ms. Allocated memory is still 190.8MB. Free memory was 120.7MB in the beginning and 93.0MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 23394.04ms. Allocated memory was 190.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 92.1MB in the beginning and 618.8MB in the end (delta: -526.6MB). Peak memory consumption was 989.3MB. Max. memory is 16.1GB. * Witness Printer took 121.47ms. Allocated memory is still 1.7GB. Free memory was 618.8MB in the beginning and 614.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 731]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 734]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 737]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 749]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 750]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 751]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 706]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 219 locations, 50 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 23.2s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 17.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 796 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 622 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 289 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2446 IncrementalHoareTripleChecker+Invalid, 2735 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 289 mSolverCounterUnsat, 14 mSDtfsCounter, 2446 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=800occurred in iteration=11, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 746 NumberOfCodeBlocks, 746 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 732 ConstructedInterpolants, 0 QuantifiedInterpolants, 2144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-23 22:36:11,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6666d910-be6a-47f4-802d-ef88257cb19a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE