./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/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_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/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_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/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 729ea5b7f047316231f562bf88a66f84bb913811f2b458cb706ab3ed78d2b3a0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:27:56,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:27:56,593 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:27:56,602 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:27:56,603 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:27:56,642 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:27:56,643 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:27:56,643 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:27:56,645 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:27:56,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:27:56,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:27:56,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:27:56,652 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:27:56,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:27:56,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:27:56,654 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:27:56,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:27:56,656 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:27:56,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:27:56,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:27:56,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:27:56,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:27:56,658 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:27:56,659 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:27:56,659 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:27:56,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:27:56,660 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:27:56,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:27:56,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:27:56,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:27:56,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:27:56,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:27:56,665 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:27:56,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:27:56,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:27:56,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:27:56,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:27:56,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:27:56,666 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:27:56,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:27:56,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:27:56,668 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_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 729ea5b7f047316231f562bf88a66f84bb913811f2b458cb706ab3ed78d2b3a0 [2023-11-23 22:27:57,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:27:57,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:27:57,055 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:27:57,057 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:27:57,058 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:27:57,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i [2023-11-23 22:28:00,255 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:28:00,577 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:28:00,578 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/sv-benchmarks/c/pthread-race-challenges/per-thread-index-inc-race-2.i [2023-11-23 22:28:00,598 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/bin/uautomizer-verify-zZY32mL2XJ/data/a2ed2b6a9/57f91c65c1bf4c658d5d09e9c4e04e86/FLAGff402f71c [2023-11-23 22:28:00,614 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/bin/uautomizer-verify-zZY32mL2XJ/data/a2ed2b6a9/57f91c65c1bf4c658d5d09e9c4e04e86 [2023-11-23 22:28:00,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:28:00,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:28:00,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:28:00,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:28:00,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:28:00,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:28:00" (1/1) ... [2023-11-23 22:28:00,631 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c365a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:00, skipping insertion in model container [2023-11-23 22:28:00,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:28:00" (1/1) ... [2023-11-23 22:28:00,706 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:28:00,986 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 22:28:01,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:28:01,434 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:28:01,453 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 22:28:01,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:28:01,627 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:28:01,636 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:28:01,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01 WrapperNode [2023-11-23 22:28:01,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:28:01,638 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:28:01,638 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:28:01,638 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:28:01,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (1/1) ... [2023-11-23 22:28:01,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (1/1) ... [2023-11-23 22:28:01,715 INFO L138 Inliner]: procedures = 282, calls = 27, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2023-11-23 22:28:01,715 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:28:01,716 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:28:01,716 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:28:01,716 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:28:01,727 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (1/1) ... [2023-11-23 22:28:01,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (1/1) ... [2023-11-23 22:28:01,732 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (1/1) ... [2023-11-23 22:28:01,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (1/1) ... [2023-11-23 22:28:01,743 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (1/1) ... [2023-11-23 22:28:01,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (1/1) ... [2023-11-23 22:28:01,749 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (1/1) ... [2023-11-23 22:28:01,751 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (1/1) ... [2023-11-23 22:28:01,755 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:28:01,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:28:01,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:28:01,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:28:01,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (1/1) ... [2023-11-23 22:28:01,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:28:01,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:28:01,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:28:01,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6f8278e-72c2-46e6-8e5a-eed7d1e57a93/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:28:01,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:28:01,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 22:28:01,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:28:01,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 22:28:01,849 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 22:28:01,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:28:01,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:28:01,850 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 22:28:01,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:28:01,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:28:01,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:28:01,850 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-23 22:28:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-23 22:28:01,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:28:01,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:28:01,853 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 22:28:02,041 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:28:02,043 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:28:02,343 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:28:02,366 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:28:02,368 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 22:28:02,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:28:02 BoogieIcfgContainer [2023-11-23 22:28:02,370 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:28:02,373 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:28:02,373 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:28:02,377 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:28:02,377 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:28:00" (1/3) ... [2023-11-23 22:28:02,380 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45650945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:28:02, skipping insertion in model container [2023-11-23 22:28:02,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:01" (2/3) ... [2023-11-23 22:28:02,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45650945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:28:02, skipping insertion in model container [2023-11-23 22:28:02,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:28:02" (3/3) ... [2023-11-23 22:28:02,388 INFO L112 eAbstractionObserver]: Analyzing ICFG per-thread-index-inc-race-2.i [2023-11-23 22:28:02,397 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:28:02,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:28:02,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-23 22:28:02,409 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:28:02,505 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-23 22:28:02,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 142 transitions, 291 flow [2023-11-23 22:28:02,686 INFO L124 PetriNetUnfolderBase]: 6/194 cut-off events. [2023-11-23 22:28:02,686 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 22:28:02,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 194 events. 6/194 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 401 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 96. Up to 4 conditions per place. [2023-11-23 22:28:02,698 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 142 transitions, 291 flow [2023-11-23 22:28:02,713 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 142 transitions, 291 flow [2023-11-23 22:28:02,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:28:02,742 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;@47032641, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:28:02,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2023-11-23 22:28:02,751 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:28:02,751 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2023-11-23 22:28:02,751 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:28:02,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:02,752 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] [2023-11-23 22:28:02,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-23 22:28:02,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:02,758 INFO L85 PathProgramCache]: Analyzing trace with hash -276997546, now seen corresponding path program 1 times [2023-11-23 22:28:02,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:02,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655252556] [2023-11-23 22:28:02,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:02,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:02,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:03,053 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 22:28:03,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:03,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655252556] [2023-11-23 22:28:03,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655252556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:03,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:03,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:03,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893753317] [2023-11-23 22:28:03,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:03,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:03,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:03,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:03,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:03,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 142 [2023-11-23 22:28:03,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 142 transitions, 291 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states 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 22:28:03,157 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:03,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 142 [2023-11-23 22:28:03,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:03,251 INFO L124 PetriNetUnfolderBase]: 7/266 cut-off events. [2023-11-23 22:28:03,251 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-23 22:28:03,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 266 events. 7/266 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 743 event pairs, 6 based on Foata normal form. 9/242 useless extension candidates. Maximal degree in co-relation 189. Up to 25 conditions per place. [2023-11-23 22:28:03,255 INFO L140 encePairwiseOnDemand]: 136/142 looper letters, 10 selfloop transitions, 2 changer transitions 1/138 dead transitions. [2023-11-23 22:28:03,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 138 transitions, 307 flow [2023-11-23 22:28:03,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:03,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 394 transitions. [2023-11-23 22:28:03,272 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9248826291079812 [2023-11-23 22:28:03,273 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 394 transitions. [2023-11-23 22:28:03,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 394 transitions. [2023-11-23 22:28:03,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:03,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 394 transitions. [2023-11-23 22:28:03,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 22:28:03,291 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 22:28:03,292 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 22:28:03,294 INFO L175 Difference]: Start difference. First operand has 141 places, 142 transitions, 291 flow. Second operand 3 states and 394 transitions. [2023-11-23 22:28:03,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 138 transitions, 307 flow [2023-11-23 22:28:03,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 138 transitions, 307 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:03,305 INFO L231 Difference]: Finished difference. Result has 142 places, 137 transitions, 285 flow [2023-11-23 22:28:03,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=283, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=285, PETRI_PLACES=142, PETRI_TRANSITIONS=137} [2023-11-23 22:28:03,311 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 1 predicate places. [2023-11-23 22:28:03,312 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 137 transitions, 285 flow [2023-11-23 22:28:03,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states 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 22:28:03,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:03,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:03,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:28:03,314 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-23 22:28:03,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:03,314 INFO L85 PathProgramCache]: Analyzing trace with hash 67025839, now seen corresponding path program 1 times [2023-11-23 22:28:03,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:03,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380757986] [2023-11-23 22:28:03,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:03,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:04,229 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 22:28:04,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:04,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380757986] [2023-11-23 22:28:04,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380757986] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:04,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:04,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:04,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934510041] [2023-11-23 22:28:04,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:04,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:28:04,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:04,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:28:04,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:04,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 142 [2023-11-23 22:28:04,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 137 transitions, 285 flow. Second operand has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states 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 22:28:04,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:04,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 142 [2023-11-23 22:28:04,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:04,822 INFO L124 PetriNetUnfolderBase]: 151/804 cut-off events. [2023-11-23 22:28:04,822 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-23 22:28:04,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 804 events. 151/804 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 4600 event pairs, 36 based on Foata normal form. 0/710 useless extension candidates. Maximal degree in co-relation 1147. Up to 202 conditions per place. [2023-11-23 22:28:04,830 INFO L140 encePairwiseOnDemand]: 119/142 looper letters, 42 selfloop transitions, 29 changer transitions 0/178 dead transitions. [2023-11-23 22:28:04,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 178 transitions, 512 flow [2023-11-23 22:28:04,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:04,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:28:04,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 728 transitions. [2023-11-23 22:28:04,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8544600938967136 [2023-11-23 22:28:04,836 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 728 transitions. [2023-11-23 22:28:04,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 728 transitions. [2023-11-23 22:28:04,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:04,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 728 transitions. [2023-11-23 22:28:04,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.33333333333333) internal successors, (728), 6 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 22:28:04,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states 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 22:28:04,846 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states 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 22:28:04,846 INFO L175 Difference]: Start difference. First operand has 142 places, 137 transitions, 285 flow. Second operand 6 states and 728 transitions. [2023-11-23 22:28:04,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 178 transitions, 512 flow [2023-11-23 22:28:04,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 178 transitions, 508 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:28:04,854 INFO L231 Difference]: Finished difference. Result has 149 places, 166 transitions, 501 flow [2023-11-23 22:28:04,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=501, PETRI_PLACES=149, PETRI_TRANSITIONS=166} [2023-11-23 22:28:04,855 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 8 predicate places. [2023-11-23 22:28:04,856 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 166 transitions, 501 flow [2023-11-23 22:28:04,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.16666666666667) internal successors, (661), 6 states have internal predecessors, (661), 0 states have call successors, (0), 0 states 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 22:28:04,857 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:04,857 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 22:28:04,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:28:04,858 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-23 22:28:04,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:04,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2068118252, now seen corresponding path program 1 times [2023-11-23 22:28:04,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:04,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317422923] [2023-11-23 22:28:04,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:04,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:04,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:04,909 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 22:28:04,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:04,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317422923] [2023-11-23 22:28:04,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317422923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:04,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:04,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:04,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180880139] [2023-11-23 22:28:04,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:04,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:04,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:04,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:04,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:04,924 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 142 [2023-11-23 22:28:04,925 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 166 transitions, 501 flow. Second operand has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states 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 22:28:04,925 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:04,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 142 [2023-11-23 22:28:04,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:05,087 INFO L124 PetriNetUnfolderBase]: 94/653 cut-off events. [2023-11-23 22:28:05,087 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2023-11-23 22:28:05,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1118 conditions, 653 events. 94/653 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3551 event pairs, 5 based on Foata normal form. 0/610 useless extension candidates. Maximal degree in co-relation 907. Up to 111 conditions per place. [2023-11-23 22:28:05,093 INFO L140 encePairwiseOnDemand]: 138/142 looper letters, 11 selfloop transitions, 2 changer transitions 0/168 dead transitions. [2023-11-23 22:28:05,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 168 transitions, 531 flow [2023-11-23 22:28:05,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:05,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:05,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 399 transitions. [2023-11-23 22:28:05,096 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9366197183098591 [2023-11-23 22:28:05,097 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 399 transitions. [2023-11-23 22:28:05,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 399 transitions. [2023-11-23 22:28:05,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:05,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 399 transitions. [2023-11-23 22:28:05,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 0 states 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 22:28:05,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 22:28:05,102 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 22:28:05,102 INFO L175 Difference]: Start difference. First operand has 149 places, 166 transitions, 501 flow. Second operand 3 states and 399 transitions. [2023-11-23 22:28:05,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 168 transitions, 531 flow [2023-11-23 22:28:05,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 168 transitions, 531 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:05,115 INFO L231 Difference]: Finished difference. Result has 150 places, 166 transitions, 511 flow [2023-11-23 22:28:05,116 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=511, PETRI_PLACES=150, PETRI_TRANSITIONS=166} [2023-11-23 22:28:05,117 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 9 predicate places. [2023-11-23 22:28:05,118 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 166 transitions, 511 flow [2023-11-23 22:28:05,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.0) internal successors, (387), 3 states have internal predecessors, (387), 0 states have call successors, (0), 0 states 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 22:28:05,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:05,119 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] [2023-11-23 22:28:05,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:28:05,120 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-23 22:28:05,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:05,122 INFO L85 PathProgramCache]: Analyzing trace with hash -2050436272, now seen corresponding path program 1 times [2023-11-23 22:28:05,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:05,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683729536] [2023-11-23 22:28:05,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:05,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:05,270 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 22:28:05,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:05,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683729536] [2023-11-23 22:28:05,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683729536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:05,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:05,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:05,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735785351] [2023-11-23 22:28:05,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:05,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:28:05,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:05,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:28:05,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:28:05,381 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 142 [2023-11-23 22:28:05,382 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 166 transitions, 511 flow. Second operand has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states 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 22:28:05,382 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:05,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 142 [2023-11-23 22:28:05,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:05,570 INFO L124 PetriNetUnfolderBase]: 97/706 cut-off events. [2023-11-23 22:28:05,571 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2023-11-23 22:28:05,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1227 conditions, 706 events. 97/706 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3856 event pairs, 9 based on Foata normal form. 1/670 useless extension candidates. Maximal degree in co-relation 1014. Up to 108 conditions per place. [2023-11-23 22:28:05,578 INFO L140 encePairwiseOnDemand]: 134/142 looper letters, 15 selfloop transitions, 2 changer transitions 5/173 dead transitions. [2023-11-23 22:28:05,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 173 transitions, 569 flow [2023-11-23 22:28:05,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:05,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:28:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 767 transitions. [2023-11-23 22:28:05,582 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9002347417840375 [2023-11-23 22:28:05,582 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 767 transitions. [2023-11-23 22:28:05,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 767 transitions. [2023-11-23 22:28:05,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:05,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 767 transitions. [2023-11-23 22:28:05,587 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 22:28:05,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states 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 22:28:05,591 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 0 states have call successors, (0), 0 states 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 22:28:05,592 INFO L175 Difference]: Start difference. First operand has 150 places, 166 transitions, 511 flow. Second operand 6 states and 767 transitions. [2023-11-23 22:28:05,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 173 transitions, 569 flow [2023-11-23 22:28:05,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 173 transitions, 569 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:05,603 INFO L231 Difference]: Finished difference. Result has 159 places, 166 transitions, 529 flow [2023-11-23 22:28:05,603 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=529, PETRI_PLACES=159, PETRI_TRANSITIONS=166} [2023-11-23 22:28:05,605 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 18 predicate places. [2023-11-23 22:28:05,606 INFO L495 AbstractCegarLoop]: Abstraction has has 159 places, 166 transitions, 529 flow [2023-11-23 22:28:05,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 0 states have call successors, (0), 0 states 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 22:28:05,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:05,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:05,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:28:05,608 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-23 22:28:05,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:05,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1742492828, now seen corresponding path program 1 times [2023-11-23 22:28:05,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:05,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297970818] [2023-11-23 22:28:05,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:05,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:05,668 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 22:28:05,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:05,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297970818] [2023-11-23 22:28:05,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297970818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:05,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:05,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:05,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450751846] [2023-11-23 22:28:05,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:05,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:05,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:05,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:05,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:05,687 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 142 [2023-11-23 22:28:05,688 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 166 transitions, 529 flow. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:05,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:05,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 142 [2023-11-23 22:28:05,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:05,823 INFO L124 PetriNetUnfolderBase]: 74/542 cut-off events. [2023-11-23 22:28:05,823 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-11-23 22:28:05,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 542 events. 74/542 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2762 event pairs, 2 based on Foata normal form. 0/517 useless extension candidates. Maximal degree in co-relation 900. Up to 93 conditions per place. [2023-11-23 22:28:05,834 INFO L140 encePairwiseOnDemand]: 138/142 looper letters, 7 selfloop transitions, 2 changer transitions 0/164 dead transitions. [2023-11-23 22:28:05,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 164 transitions, 543 flow [2023-11-23 22:28:05,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:05,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:05,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-11-23 22:28:05,837 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9272300469483568 [2023-11-23 22:28:05,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-11-23 22:28:05,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-11-23 22:28:05,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:05,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-11-23 22:28:05,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states 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 22:28:05,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 22:28:05,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 22:28:05,843 INFO L175 Difference]: Start difference. First operand has 159 places, 166 transitions, 529 flow. Second operand 3 states and 395 transitions. [2023-11-23 22:28:05,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 164 transitions, 543 flow [2023-11-23 22:28:05,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 164 transitions, 529 flow, removed 5 selfloop flow, removed 5 redundant places. [2023-11-23 22:28:05,853 INFO L231 Difference]: Finished difference. Result has 151 places, 164 transitions, 515 flow [2023-11-23 22:28:05,854 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=162, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=515, PETRI_PLACES=151, PETRI_TRANSITIONS=164} [2023-11-23 22:28:05,857 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 10 predicate places. [2023-11-23 22:28:05,857 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 164 transitions, 515 flow [2023-11-23 22:28:05,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:28:05,858 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:05,859 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] [2023-11-23 22:28:05,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:28:05,859 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-23 22:28:05,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:05,861 INFO L85 PathProgramCache]: Analyzing trace with hash 9922377, now seen corresponding path program 1 times [2023-11-23 22:28:05,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:05,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431581754] [2023-11-23 22:28:05,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:05,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:05,932 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 22:28:05,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:05,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431581754] [2023-11-23 22:28:05,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431581754] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:05,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:05,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:05,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467395817] [2023-11-23 22:28:05,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:05,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:05,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:05,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:05,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:05,950 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 142 [2023-11-23 22:28:05,951 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 164 transitions, 515 flow. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 22:28:05,951 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:05,952 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 142 [2023-11-23 22:28:05,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:06,058 INFO L124 PetriNetUnfolderBase]: 74/541 cut-off events. [2023-11-23 22:28:06,059 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2023-11-23 22:28:06,061 INFO L83 FinitePrefix]: Finished finitePrefix Result has 962 conditions, 541 events. 74/541 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2755 event pairs, 2 based on Foata normal form. 0/514 useless extension candidates. Maximal degree in co-relation 873. Up to 93 conditions per place. [2023-11-23 22:28:06,063 INFO L140 encePairwiseOnDemand]: 139/142 looper letters, 8 selfloop transitions, 2 changer transitions 0/163 dead transitions. [2023-11-23 22:28:06,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 163 transitions, 533 flow [2023-11-23 22:28:06,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:06,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:06,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 395 transitions. [2023-11-23 22:28:06,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9272300469483568 [2023-11-23 22:28:06,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 395 transitions. [2023-11-23 22:28:06,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 395 transitions. [2023-11-23 22:28:06,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:06,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 395 transitions. [2023-11-23 22:28:06,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.66666666666666) internal successors, (395), 3 states have internal predecessors, (395), 0 states have call successors, (0), 0 states 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 22:28:06,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 22:28:06,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 22:28:06,071 INFO L175 Difference]: Start difference. First operand has 151 places, 164 transitions, 515 flow. Second operand 3 states and 395 transitions. [2023-11-23 22:28:06,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 163 transitions, 533 flow [2023-11-23 22:28:06,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 163 transitions, 529 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:28:06,079 INFO L231 Difference]: Finished difference. Result has 150 places, 163 transitions, 513 flow [2023-11-23 22:28:06,079 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=509, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=150, PETRI_TRANSITIONS=163} [2023-11-23 22:28:06,080 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, 9 predicate places. [2023-11-23 22:28:06,080 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 163 transitions, 513 flow [2023-11-23 22:28:06,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states 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 22:28:06,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:06,081 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:28:06,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:28:06,082 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 14 more)] === [2023-11-23 22:28:06,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:06,083 INFO L85 PathProgramCache]: Analyzing trace with hash -282280213, now seen corresponding path program 1 times [2023-11-23 22:28:06,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:06,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601944561] [2023-11-23 22:28:06,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:06,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:06,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:06,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:06,174 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 22:28:06,175 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2023-11-23 22:28:06,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2023-11-23 22:28:06,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2023-11-23 22:28:06,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2023-11-23 22:28:06,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2023-11-23 22:28:06,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2023-11-23 22:28:06,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2023-11-23 22:28:06,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2023-11-23 22:28:06,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2023-11-23 22:28:06,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2023-11-23 22:28:06,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2023-11-23 22:28:06,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2023-11-23 22:28:06,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2023-11-23 22:28:06,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2023-11-23 22:28:06,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2023-11-23 22:28:06,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2023-11-23 22:28:06,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2023-11-23 22:28:06,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:28:06,182 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:06,184 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 22:28:06,185 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-23 22:28:06,223 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 22:28:06,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 182 transitions, 380 flow [2023-11-23 22:28:06,283 INFO L124 PetriNetUnfolderBase]: 11/341 cut-off events. [2023-11-23 22:28:06,283 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2023-11-23 22:28:06,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 341 events. 11/341 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 940 event pairs, 0 based on Foata normal form. 0/296 useless extension candidates. Maximal degree in co-relation 196. Up to 8 conditions per place. [2023-11-23 22:28:06,285 INFO L82 GeneralOperation]: Start removeDead. Operand has 182 places, 182 transitions, 380 flow [2023-11-23 22:28:06,289 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 182 transitions, 380 flow [2023-11-23 22:28:06,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:28:06,291 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;@47032641, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:28:06,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2023-11-23 22:28:06,295 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:28:06,296 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2023-11-23 22:28:06,296 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:28:06,296 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:06,296 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] [2023-11-23 22:28:06,297 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-23 22:28:06,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:06,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1212397994, now seen corresponding path program 1 times [2023-11-23 22:28:06,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:06,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954564544] [2023-11-23 22:28:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:06,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:28:06,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:06,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954564544] [2023-11-23 22:28:06,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954564544] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:06,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:06,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:06,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212106264] [2023-11-23 22:28:06,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:06,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:06,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:06,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:06,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:06,356 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 182 [2023-11-23 22:28:06,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 182 transitions, 380 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states 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 22:28:06,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:06,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 182 [2023-11-23 22:28:06,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:06,589 INFO L124 PetriNetUnfolderBase]: 81/1148 cut-off events. [2023-11-23 22:28:06,589 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2023-11-23 22:28:06,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1339 conditions, 1148 events. 81/1148 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 7197 event pairs, 78 based on Foata normal form. 40/1035 useless extension candidates. Maximal degree in co-relation 963. Up to 162 conditions per place. [2023-11-23 22:28:06,602 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 15 selfloop transitions, 2 changer transitions 1/178 dead transitions. [2023-11-23 22:28:06,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 178 transitions, 406 flow [2023-11-23 22:28:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:06,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:06,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2023-11-23 22:28:06,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9230769230769231 [2023-11-23 22:28:06,606 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2023-11-23 22:28:06,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2023-11-23 22:28:06,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:06,607 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2023-11-23 22:28:06,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states 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 22:28:06,610 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 22:28:06,611 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 22:28:06,611 INFO L175 Difference]: Start difference. First operand has 182 places, 182 transitions, 380 flow. Second operand 3 states and 504 transitions. [2023-11-23 22:28:06,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 178 transitions, 406 flow [2023-11-23 22:28:06,613 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 178 transitions, 406 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:06,616 INFO L231 Difference]: Finished difference. Result has 183 places, 177 transitions, 374 flow [2023-11-23 22:28:06,616 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=372, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=374, PETRI_PLACES=183, PETRI_TRANSITIONS=177} [2023-11-23 22:28:06,617 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 1 predicate places. [2023-11-23 22:28:06,617 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 177 transitions, 374 flow [2023-11-23 22:28:06,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states 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 22:28:06,618 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:06,618 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:06,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 22:28:06,619 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-23 22:28:06,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:06,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1202446383, now seen corresponding path program 1 times [2023-11-23 22:28:06,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:06,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886350109] [2023-11-23 22:28:06,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:06,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:06,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:06,970 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 22:28:06,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:06,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886350109] [2023-11-23 22:28:06,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886350109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:06,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:06,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:06,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403486819] [2023-11-23 22:28:06,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:06,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:28:06,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:06,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:28:06,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:07,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 182 [2023-11-23 22:28:07,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 177 transitions, 374 flow. Second operand has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 0 states have call successors, (0), 0 states 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 22:28:07,268 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:07,268 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 182 [2023-11-23 22:28:07,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:09,366 INFO L124 PetriNetUnfolderBase]: 3210/10616 cut-off events. [2023-11-23 22:28:09,366 INFO L125 PetriNetUnfolderBase]: For 173/173 co-relation queries the response was YES. [2023-11-23 22:28:09,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16089 conditions, 10616 events. 3210/10616 cut-off events. For 173/173 co-relation queries the response was YES. Maximal size of possible extension queue 434. Compared 109200 event pairs, 680 based on Foata normal form. 0/9611 useless extension candidates. Maximal degree in co-relation 16046. Up to 3443 conditions per place. [2023-11-23 22:28:09,464 INFO L140 encePairwiseOnDemand]: 155/182 looper letters, 66 selfloop transitions, 48 changer transitions 0/253 dead transitions. [2023-11-23 22:28:09,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 253 transitions, 765 flow [2023-11-23 22:28:09,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:09,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:28:09,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 963 transitions. [2023-11-23 22:28:09,472 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8818681318681318 [2023-11-23 22:28:09,472 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 963 transitions. [2023-11-23 22:28:09,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 963 transitions. [2023-11-23 22:28:09,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:09,474 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 963 transitions. [2023-11-23 22:28:09,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 160.5) internal successors, (963), 6 states have internal predecessors, (963), 0 states have call successors, (0), 0 states 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 22:28:09,481 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 22:28:09,482 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 22:28:09,482 INFO L175 Difference]: Start difference. First operand has 183 places, 177 transitions, 374 flow. Second operand 6 states and 963 transitions. [2023-11-23 22:28:09,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 253 transitions, 765 flow [2023-11-23 22:28:09,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 253 transitions, 761 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:28:09,491 INFO L231 Difference]: Finished difference. Result has 190 places, 225 transitions, 712 flow [2023-11-23 22:28:09,492 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=712, PETRI_PLACES=190, PETRI_TRANSITIONS=225} [2023-11-23 22:28:09,493 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 8 predicate places. [2023-11-23 22:28:09,494 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 225 transitions, 712 flow [2023-11-23 22:28:09,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 142.16666666666666) internal successors, (853), 6 states have internal predecessors, (853), 0 states have call successors, (0), 0 states 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 22:28:09,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:09,495 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 22:28:09,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 22:28:09,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-23 22:28:09,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:09,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1492714028, now seen corresponding path program 1 times [2023-11-23 22:28:09,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:09,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297979222] [2023-11-23 22:28:09,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:09,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:09,567 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 22:28:09,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:09,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297979222] [2023-11-23 22:28:09,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297979222] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:09,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:09,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:09,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477258988] [2023-11-23 22:28:09,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:09,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:09,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:09,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:09,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:09,585 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 182 [2023-11-23 22:28:09,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 225 transitions, 712 flow. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states 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 22:28:09,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:09,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 182 [2023-11-23 22:28:09,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:11,250 INFO L124 PetriNetUnfolderBase]: 2215/8383 cut-off events. [2023-11-23 22:28:11,250 INFO L125 PetriNetUnfolderBase]: For 1416/1801 co-relation queries the response was YES. [2023-11-23 22:28:11,285 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15250 conditions, 8383 events. 2215/8383 cut-off events. For 1416/1801 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 84848 event pairs, 304 based on Foata normal form. 0/7721 useless extension candidates. Maximal degree in co-relation 7292. Up to 2300 conditions per place. [2023-11-23 22:28:11,321 INFO L140 encePairwiseOnDemand]: 176/182 looper letters, 20 selfloop transitions, 3 changer transitions 0/230 dead transitions. [2023-11-23 22:28:11,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 230 transitions, 773 flow [2023-11-23 22:28:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:11,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:11,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2023-11-23 22:28:11,325 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9322344322344323 [2023-11-23 22:28:11,325 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 509 transitions. [2023-11-23 22:28:11,325 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 509 transitions. [2023-11-23 22:28:11,326 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:11,326 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 509 transitions. [2023-11-23 22:28:11,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states 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 22:28:11,329 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 22:28:11,330 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 22:28:11,330 INFO L175 Difference]: Start difference. First operand has 190 places, 225 transitions, 712 flow. Second operand 3 states and 509 transitions. [2023-11-23 22:28:11,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 230 transitions, 773 flow [2023-11-23 22:28:11,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 230 transitions, 773 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:11,363 INFO L231 Difference]: Finished difference. Result has 190 places, 225 transitions, 727 flow [2023-11-23 22:28:11,364 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=727, PETRI_PLACES=190, PETRI_TRANSITIONS=225} [2023-11-23 22:28:11,366 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 8 predicate places. [2023-11-23 22:28:11,366 INFO L495 AbstractCegarLoop]: Abstraction has has 190 places, 225 transitions, 727 flow [2023-11-23 22:28:11,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states 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 22:28:11,366 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:11,367 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] [2023-11-23 22:28:11,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 22:28:11,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-23 22:28:11,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:11,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1392774330, now seen corresponding path program 1 times [2023-11-23 22:28:11,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:11,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974588376] [2023-11-23 22:28:11,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:11,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:11,471 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 22:28:11,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:11,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974588376] [2023-11-23 22:28:11,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974588376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:11,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:11,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:11,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853293572] [2023-11-23 22:28:11,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:11,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:28:11,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:11,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:28:11,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:28:11,540 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 182 [2023-11-23 22:28:11,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 225 transitions, 727 flow. Second operand has 5 states, 5 states have (on average 161.4) internal successors, (807), 5 states have internal predecessors, (807), 0 states have call successors, (0), 0 states 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 22:28:11,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:11,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 182 [2023-11-23 22:28:11,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:13,029 INFO L124 PetriNetUnfolderBase]: 1905/8566 cut-off events. [2023-11-23 22:28:13,029 INFO L125 PetriNetUnfolderBase]: For 1183/1345 co-relation queries the response was YES. [2023-11-23 22:28:13,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14730 conditions, 8566 events. 1905/8566 cut-off events. For 1183/1345 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 87477 event pairs, 412 based on Foata normal form. 2/7914 useless extension candidates. Maximal degree in co-relation 10566. Up to 2055 conditions per place. [2023-11-23 22:28:13,103 INFO L140 encePairwiseOnDemand]: 174/182 looper letters, 20 selfloop transitions, 2 changer transitions 5/233 dead transitions. [2023-11-23 22:28:13,104 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 233 transitions, 797 flow [2023-11-23 22:28:13,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:13,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:28:13,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 988 transitions. [2023-11-23 22:28:13,109 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2023-11-23 22:28:13,109 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 988 transitions. [2023-11-23 22:28:13,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 988 transitions. [2023-11-23 22:28:13,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:13,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 988 transitions. [2023-11-23 22:28:13,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states 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 22:28:13,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 22:28:13,118 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 22:28:13,119 INFO L175 Difference]: Start difference. First operand has 190 places, 225 transitions, 727 flow. Second operand 6 states and 988 transitions. [2023-11-23 22:28:13,119 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 233 transitions, 797 flow [2023-11-23 22:28:13,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 233 transitions, 797 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:13,138 INFO L231 Difference]: Finished difference. Result has 199 places, 226 transitions, 749 flow [2023-11-23 22:28:13,139 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=749, PETRI_PLACES=199, PETRI_TRANSITIONS=226} [2023-11-23 22:28:13,141 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 17 predicate places. [2023-11-23 22:28:13,141 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 226 transitions, 749 flow [2023-11-23 22:28:13,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 161.4) internal successors, (807), 5 states have internal predecessors, (807), 0 states have call successors, (0), 0 states 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 22:28:13,143 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:13,143 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] [2023-11-23 22:28:13,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 22:28:13,143 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-23 22:28:13,144 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:13,144 INFO L85 PathProgramCache]: Analyzing trace with hash 830559882, now seen corresponding path program 1 times [2023-11-23 22:28:13,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:13,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782434960] [2023-11-23 22:28:13,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:13,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:13,206 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 22:28:13,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:13,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782434960] [2023-11-23 22:28:13,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782434960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:13,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:13,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:13,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549466136] [2023-11-23 22:28:13,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:13,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:13,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:13,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:13,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:13,230 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 182 [2023-11-23 22:28:13,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 226 transitions, 749 flow. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states 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 22:28:13,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:13,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 182 [2023-11-23 22:28:13,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:14,529 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([397] L1064-5-->L1064-6: Formula: (let ((.cse0 (select |v_#race_30| |v_ULTIMATE.start_main_~#tids~0#1.base_17|))) (and (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 1)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 2)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 3)) 0) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#tids~0#1.offset_17|)))) InVars {#race=|v_#race_30|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_17|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_17|} OutVars{#race=|v_#race_30|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_17|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_17|} AuxVars[] AssignedVars[][175], [Black: 189#true, 161#L1052-10true, Black: 193#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 192#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 191#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 159#L1064-6true, 218#true, Black: 201#true, 203#(= |#race~datas~0| 0), 101#L1052-8true, 194#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 3)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), threadThread1of2ForFork0InUse, Black: 208#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 210#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), threadThread2of2ForFork0InUse, Black: 209#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 212#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 206#true]) [2023-11-23 22:28:14,529 INFO L294 olderBase$Statistics]: this new event has 133 ancestors and is not cut-off event [2023-11-23 22:28:14,529 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-23 22:28:14,529 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-23 22:28:14,529 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-23 22:28:14,556 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([492] L1066-5-->L1066-6: Formula: (let ((.cse0 (select |v_#race_50| |v_ULTIMATE.start_main_~#tids~0#1.base_24|))) (and (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 2)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 3)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 1)) 0) (= (select .cse0 |v_ULTIMATE.start_main_~#tids~0#1.offset_24|) 0))) InVars {#race=|v_#race_50|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_24|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_24|} OutVars{#race=|v_#race_50|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_24|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_24|} AuxVars[] AssignedVars[][188], [161#L1052-10true, Black: 189#true, Black: 193#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 192#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 191#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 218#true, Black: 201#true, 203#(= |#race~datas~0| 0), 136#L1066-6true, 101#L1052-8true, 194#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 3)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), threadThread1of2ForFork0InUse, Black: 208#(= |ULTIMATE.start_main_~i~0#1| 0), Black: 210#(and (= |ULTIMATE.start_main_~i~1#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), threadThread2of2ForFork0InUse, Black: 209#(<= |ULTIMATE.start_main_~threads_total~0#1| 0), Black: 212#(and (= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~threads_total~0#1| 0)), 206#true]) [2023-11-23 22:28:14,556 INFO L294 olderBase$Statistics]: this new event has 134 ancestors and is not cut-off event [2023-11-23 22:28:14,556 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-23 22:28:14,556 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-23 22:28:14,556 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-23 22:28:14,706 INFO L124 PetriNetUnfolderBase]: 2177/9531 cut-off events. [2023-11-23 22:28:14,706 INFO L125 PetriNetUnfolderBase]: For 1891/2294 co-relation queries the response was YES. [2023-11-23 22:28:14,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18054 conditions, 9531 events. 2177/9531 cut-off events. For 1891/2294 co-relation queries the response was YES. Maximal size of possible extension queue 405. Compared 105702 event pairs, 224 based on Foata normal form. 1/8883 useless extension candidates. Maximal degree in co-relation 17973. Up to 2376 conditions per place. [2023-11-23 22:28:14,773 INFO L140 encePairwiseOnDemand]: 168/182 looper letters, 29 selfloop transitions, 10 changer transitions 0/243 dead transitions. [2023-11-23 22:28:14,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 243 transitions, 872 flow [2023-11-23 22:28:14,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:14,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2023-11-23 22:28:14,776 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9413919413919414 [2023-11-23 22:28:14,776 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 514 transitions. [2023-11-23 22:28:14,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 514 transitions. [2023-11-23 22:28:14,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:14,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 514 transitions. [2023-11-23 22:28:14,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 0 states have call successors, (0), 0 states 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 22:28:14,781 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 22:28:14,781 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 22:28:14,782 INFO L175 Difference]: Start difference. First operand has 199 places, 226 transitions, 749 flow. Second operand 3 states and 514 transitions. [2023-11-23 22:28:14,782 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 243 transitions, 872 flow [2023-11-23 22:28:14,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 243 transitions, 860 flow, removed 5 selfloop flow, removed 4 redundant places. [2023-11-23 22:28:14,827 INFO L231 Difference]: Finished difference. Result has 196 places, 236 transitions, 825 flow [2023-11-23 22:28:14,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=825, PETRI_PLACES=196, PETRI_TRANSITIONS=236} [2023-11-23 22:28:14,828 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 14 predicate places. [2023-11-23 22:28:14,828 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 236 transitions, 825 flow [2023-11-23 22:28:14,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 0 states have call successors, (0), 0 states 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 22:28:14,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:14,829 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] [2023-11-23 22:28:14,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-23 22:28:14,829 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-23 22:28:14,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:14,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1542637423, now seen corresponding path program 1 times [2023-11-23 22:28:14,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:14,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349290767] [2023-11-23 22:28:14,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:14,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:14,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:14,876 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 22:28:14,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:14,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349290767] [2023-11-23 22:28:14,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349290767] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:14,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:14,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:14,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869231307] [2023-11-23 22:28:14,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:14,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:14,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:14,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:14,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:14,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 182 [2023-11-23 22:28:14,906 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 236 transitions, 825 flow. Second operand has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states 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 22:28:14,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:14,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 182 [2023-11-23 22:28:14,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:16,457 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([397] L1064-5-->L1064-6: Formula: (let ((.cse0 (select |v_#race_30| |v_ULTIMATE.start_main_~#tids~0#1.base_17|))) (and (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 1)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 2)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_17| 3)) 0) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#tids~0#1.offset_17|)))) InVars {#race=|v_#race_30|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_17|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_17|} OutVars{#race=|v_#race_30|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_17|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_17|} AuxVars[] AssignedVars[][176], [161#L1052-10true, Black: 189#true, Black: 193#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), 224#true, Black: 192#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 191#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 159#L1064-6true, 218#true, Black: 201#true, 203#(= |#race~datas~0| 0), 101#L1052-8true, 194#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 3)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), threadThread1of2ForFork0InUse, Black: 208#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread2of2ForFork0InUse, Black: 220#(= |#race~next_j~0| 0)]) [2023-11-23 22:28:16,458 INFO L294 olderBase$Statistics]: this new event has 133 ancestors and is not cut-off event [2023-11-23 22:28:16,458 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-23 22:28:16,458 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-23 22:28:16,458 INFO L297 olderBase$Statistics]: existing Event has 133 ancestors and is not cut-off event [2023-11-23 22:28:16,492 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([492] L1066-5-->L1066-6: Formula: (let ((.cse0 (select |v_#race_50| |v_ULTIMATE.start_main_~#tids~0#1.base_24|))) (and (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 2)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 3)) 0) (= (select .cse0 (+ |v_ULTIMATE.start_main_~#tids~0#1.offset_24| 1)) 0) (= (select .cse0 |v_ULTIMATE.start_main_~#tids~0#1.offset_24|) 0))) InVars {#race=|v_#race_50|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_24|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_24|} OutVars{#race=|v_#race_50|, ULTIMATE.start_main_~#tids~0#1.offset=|v_ULTIMATE.start_main_~#tids~0#1.offset_24|, ULTIMATE.start_main_~#tids~0#1.base=|v_ULTIMATE.start_main_~#tids~0#1.base_24|} AuxVars[] AssignedVars[][189], [161#L1052-10true, Black: 189#true, 224#true, Black: 193#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 192#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), Black: 191#(= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0), 218#true, Black: 201#true, 203#(= |#race~datas~0| 0), 136#L1066-6true, 101#L1052-8true, 194#(and (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ 2 |ULTIMATE.start_main_~#tids~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) (+ |ULTIMATE.start_main_~#tids~0#1.offset| 3)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#tids~0#1.base|) |ULTIMATE.start_main_~#tids~0#1.offset|) 0)), threadThread1of2ForFork0InUse, Black: 208#(= |ULTIMATE.start_main_~i~0#1| 0), threadThread2of2ForFork0InUse, Black: 220#(= |#race~next_j~0| 0)]) [2023-11-23 22:28:16,492 INFO L294 olderBase$Statistics]: this new event has 134 ancestors and is not cut-off event [2023-11-23 22:28:16,492 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-23 22:28:16,493 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-23 22:28:16,493 INFO L297 olderBase$Statistics]: existing Event has 134 ancestors and is not cut-off event [2023-11-23 22:28:16,707 INFO L124 PetriNetUnfolderBase]: 2583/11086 cut-off events. [2023-11-23 22:28:16,707 INFO L125 PetriNetUnfolderBase]: For 2453/2771 co-relation queries the response was YES. [2023-11-23 22:28:16,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21200 conditions, 11086 events. 2583/11086 cut-off events. For 2453/2771 co-relation queries the response was YES. Maximal size of possible extension queue 483. Compared 127957 event pairs, 243 based on Foata normal form. 11/10335 useless extension candidates. Maximal degree in co-relation 13763. Up to 2829 conditions per place. [2023-11-23 22:28:16,962 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 26 selfloop transitions, 9 changer transitions 0/247 dead transitions. [2023-11-23 22:28:16,962 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 247 transitions, 941 flow [2023-11-23 22:28:16,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:16,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:16,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2023-11-23 22:28:16,965 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9358974358974359 [2023-11-23 22:28:16,966 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2023-11-23 22:28:16,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2023-11-23 22:28:16,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:16,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2023-11-23 22:28:16,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states 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 22:28:16,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 22:28:16,971 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 22:28:16,971 INFO L175 Difference]: Start difference. First operand has 196 places, 236 transitions, 825 flow. Second operand 3 states and 511 transitions. [2023-11-23 22:28:16,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 247 transitions, 941 flow [2023-11-23 22:28:17,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 247 transitions, 915 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:28:17,030 INFO L231 Difference]: Finished difference. Result has 198 places, 243 transitions, 881 flow [2023-11-23 22:28:17,031 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=805, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=881, PETRI_PLACES=198, PETRI_TRANSITIONS=243} [2023-11-23 22:28:17,032 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 16 predicate places. [2023-11-23 22:28:17,032 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 243 transitions, 881 flow [2023-11-23 22:28:17,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.33333333333334) internal successors, (490), 3 states have internal predecessors, (490), 0 states have call successors, (0), 0 states 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 22:28:17,032 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:17,033 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] [2023-11-23 22:28:17,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-23 22:28:17,033 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-23 22:28:17,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:17,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1861185227, now seen corresponding path program 1 times [2023-11-23 22:28:17,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:17,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700663607] [2023-11-23 22:28:17,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:17,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:17,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-23 22:28:17,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:17,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700663607] [2023-11-23 22:28:17,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700663607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:17,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:17,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:17,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540073000] [2023-11-23 22:28:17,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:17,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:28:17,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:17,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:28:17,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:17,808 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 182 [2023-11-23 22:28:17,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 243 transitions, 881 flow. Second operand has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states 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 22:28:17,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:17,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 182 [2023-11-23 22:28:17,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:20,946 INFO L124 PetriNetUnfolderBase]: 5438/19232 cut-off events. [2023-11-23 22:28:20,947 INFO L125 PetriNetUnfolderBase]: For 8234/8581 co-relation queries the response was YES. [2023-11-23 22:28:21,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41215 conditions, 19232 events. 5438/19232 cut-off events. For 8234/8581 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 229508 event pairs, 1273 based on Foata normal form. 17/18079 useless extension candidates. Maximal degree in co-relation 24626. Up to 6404 conditions per place. [2023-11-23 22:28:21,401 INFO L140 encePairwiseOnDemand]: 167/182 looper letters, 78 selfloop transitions, 70 changer transitions 0/330 dead transitions. [2023-11-23 22:28:21,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 330 transitions, 1549 flow [2023-11-23 22:28:21,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:21,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:28:21,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 985 transitions. [2023-11-23 22:28:21,406 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.902014652014652 [2023-11-23 22:28:21,406 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 985 transitions. [2023-11-23 22:28:21,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 985 transitions. [2023-11-23 22:28:21,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:21,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 985 transitions. [2023-11-23 22:28:21,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.16666666666666) internal successors, (985), 6 states have internal predecessors, (985), 0 states have call successors, (0), 0 states 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 22:28:21,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 22:28:21,414 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 22:28:21,414 INFO L175 Difference]: Start difference. First operand has 198 places, 243 transitions, 881 flow. Second operand 6 states and 985 transitions. [2023-11-23 22:28:21,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 330 transitions, 1549 flow [2023-11-23 22:28:21,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 330 transitions, 1531 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:28:21,467 INFO L231 Difference]: Finished difference. Result has 206 places, 312 transitions, 1517 flow [2023-11-23 22:28:21,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=863, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=221, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1517, PETRI_PLACES=206, PETRI_TRANSITIONS=312} [2023-11-23 22:28:21,469 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 24 predicate places. [2023-11-23 22:28:21,469 INFO L495 AbstractCegarLoop]: Abstraction has has 206 places, 312 transitions, 1517 flow [2023-11-23 22:28:21,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 151.5) internal successors, (909), 6 states have internal predecessors, (909), 0 states have call successors, (0), 0 states 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 22:28:21,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:21,470 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] [2023-11-23 22:28:21,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-23 22:28:21,471 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-23 22:28:21,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:21,471 INFO L85 PathProgramCache]: Analyzing trace with hash -142684872, now seen corresponding path program 1 times [2023-11-23 22:28:21,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:21,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597056473] [2023-11-23 22:28:21,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:21,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:22,310 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 22:28:22,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:22,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597056473] [2023-11-23 22:28:22,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597056473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:22,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:22,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:22,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584911174] [2023-11-23 22:28:22,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:22,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:28:22,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:22,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:28:22,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:22,525 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 139 out of 182 [2023-11-23 22:28:22,526 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 206 places, 312 transitions, 1517 flow. Second operand has 6 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 0 states have call successors, (0), 0 states 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 22:28:22,526 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:22,526 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 139 of 182 [2023-11-23 22:28:22,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:29,974 INFO L124 PetriNetUnfolderBase]: 13919/42116 cut-off events. [2023-11-23 22:28:29,975 INFO L125 PetriNetUnfolderBase]: For 26981/33998 co-relation queries the response was YES. [2023-11-23 22:28:30,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105250 conditions, 42116 events. 13919/42116 cut-off events. For 26981/33998 co-relation queries the response was YES. Maximal size of possible extension queue 1156. Compared 517279 event pairs, 4384 based on Foata normal form. 143/39459 useless extension candidates. Maximal degree in co-relation 90308. Up to 18360 conditions per place. [2023-11-23 22:28:30,304 INFO L140 encePairwiseOnDemand]: 155/182 looper letters, 184 selfloop transitions, 188 changer transitions 0/533 dead transitions. [2023-11-23 22:28:30,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 533 transitions, 3567 flow [2023-11-23 22:28:30,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:28:30,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:28:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 988 transitions. [2023-11-23 22:28:30,309 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2023-11-23 22:28:30,311 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 988 transitions. [2023-11-23 22:28:30,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 988 transitions. [2023-11-23 22:28:30,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:30,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 988 transitions. [2023-11-23 22:28:30,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 164.66666666666666) internal successors, (988), 6 states have internal predecessors, (988), 0 states have call successors, (0), 0 states 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 22:28:30,320 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 22:28:30,321 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 182.0) internal successors, (1274), 7 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states 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 22:28:30,321 INFO L175 Difference]: Start difference. First operand has 206 places, 312 transitions, 1517 flow. Second operand 6 states and 988 transitions. [2023-11-23 22:28:30,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 533 transitions, 3567 flow [2023-11-23 22:28:30,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 533 transitions, 3567 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:30,554 INFO L231 Difference]: Finished difference. Result has 215 places, 490 transitions, 3403 flow [2023-11-23 22:28:30,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=1517, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=205, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3403, PETRI_PLACES=215, PETRI_TRANSITIONS=490} [2023-11-23 22:28:30,557 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 33 predicate places. [2023-11-23 22:28:30,557 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 490 transitions, 3403 flow [2023-11-23 22:28:30,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 141.83333333333334) internal successors, (851), 6 states have internal predecessors, (851), 0 states have call successors, (0), 0 states 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 22:28:30,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:30,559 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:28:30,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-23 22:28:30,559 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-23 22:28:30,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:30,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1558770421, now seen corresponding path program 1 times [2023-11-23 22:28:30,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:30,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984242468] [2023-11-23 22:28:30,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:30,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-23 22:28:30,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:30,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984242468] [2023-11-23 22:28:30,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984242468] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:30,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:30,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:30,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074416286] [2023-11-23 22:28:30,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:30,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:30,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:30,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:30,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:30,675 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 182 [2023-11-23 22:28:30,676 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 490 transitions, 3403 flow. Second operand has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states 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 22:28:30,676 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:30,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 182 [2023-11-23 22:28:30,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:36,045 INFO L124 PetriNetUnfolderBase]: 9942/31963 cut-off events. [2023-11-23 22:28:36,045 INFO L125 PetriNetUnfolderBase]: For 41229/67044 co-relation queries the response was YES. [2023-11-23 22:28:36,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92850 conditions, 31963 events. 9942/31963 cut-off events. For 41229/67044 co-relation queries the response was YES. Maximal size of possible extension queue 1080. Compared 395233 event pairs, 969 based on Foata normal form. 93/30311 useless extension candidates. Maximal degree in co-relation 77783. Up to 9162 conditions per place. [2023-11-23 22:28:36,467 INFO L140 encePairwiseOnDemand]: 175/182 looper letters, 28 selfloop transitions, 11 changer transitions 0/500 dead transitions. [2023-11-23 22:28:36,467 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 500 transitions, 3518 flow [2023-11-23 22:28:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:36,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:36,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 510 transitions. [2023-11-23 22:28:36,470 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9340659340659341 [2023-11-23 22:28:36,470 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 510 transitions. [2023-11-23 22:28:36,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 510 transitions. [2023-11-23 22:28:36,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:36,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 510 transitions. [2023-11-23 22:28:36,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.0) internal successors, (510), 3 states have internal predecessors, (510), 0 states have call successors, (0), 0 states 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 22:28:36,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 22:28:36,474 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states 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 22:28:36,474 INFO L175 Difference]: Start difference. First operand has 215 places, 490 transitions, 3403 flow. Second operand 3 states and 510 transitions. [2023-11-23 22:28:36,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 500 transitions, 3518 flow [2023-11-23 22:28:37,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 500 transitions, 3446 flow, removed 36 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:37,283 INFO L231 Difference]: Finished difference. Result has 219 places, 497 transitions, 3419 flow [2023-11-23 22:28:37,284 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=3331, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=479, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=3419, PETRI_PLACES=219, PETRI_TRANSITIONS=497} [2023-11-23 22:28:37,285 INFO L281 CegarLoopForPetriNet]: 182 programPoint places, 37 predicate places. [2023-11-23 22:28:37,285 INFO L495 AbstractCegarLoop]: Abstraction has has 219 places, 497 transitions, 3419 flow [2023-11-23 22:28:37,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 163.66666666666666) internal successors, (491), 3 states have internal predecessors, (491), 0 states have call successors, (0), 0 states 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 22:28:37,286 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:37,286 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:28:37,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-23 22:28:37,286 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 19 more)] === [2023-11-23 22:28:37,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:37,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1306568005, now seen corresponding path program 1 times [2023-11-23 22:28:37,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:37,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262777940] [2023-11-23 22:28:37,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:37,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:37,325 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:28:37,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:28:37,388 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:28:37,389 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 22:28:37,389 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2023-11-23 22:28:37,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2023-11-23 22:28:37,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2023-11-23 22:28:37,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2023-11-23 22:28:37,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2023-11-23 22:28:37,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2023-11-23 22:28:37,390 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2023-11-23 22:28:37,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2023-11-23 22:28:37,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2023-11-23 22:28:37,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2023-11-23 22:28:37,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2023-11-23 22:28:37,391 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2023-11-23 22:28:37,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2023-11-23 22:28:37,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2023-11-23 22:28:37,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2023-11-23 22:28:37,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2023-11-23 22:28:37,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2023-11-23 22:28:37,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2023-11-23 22:28:37,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2023-11-23 22:28:37,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2023-11-23 22:28:37,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2023-11-23 22:28:37,393 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2023-11-23 22:28:37,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-23 22:28:37,394 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:37,395 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 22:28:37,395 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-23 22:28:37,436 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-23 22:28:37,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 223 places, 222 transitions, 471 flow [2023-11-23 22:28:37,551 INFO L124 PetriNetUnfolderBase]: 21/577 cut-off events. [2023-11-23 22:28:37,551 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2023-11-23 22:28:37,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 577 events. 21/577 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1920 event pairs, 1 based on Foata normal form. 0/500 useless extension candidates. Maximal degree in co-relation 349. Up to 16 conditions per place. [2023-11-23 22:28:37,554 INFO L82 GeneralOperation]: Start removeDead. Operand has 223 places, 222 transitions, 471 flow [2023-11-23 22:28:37,560 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 223 places, 222 transitions, 471 flow [2023-11-23 22:28:37,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:28:37,563 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;@47032641, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:28:37,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2023-11-23 22:28:37,567 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:28:37,567 INFO L124 PetriNetUnfolderBase]: 1/33 cut-off events. [2023-11-23 22:28:37,568 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:28:37,568 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:37,568 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] [2023-11-23 22:28:37,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 22:28:37,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:37,569 INFO L85 PathProgramCache]: Analyzing trace with hash 667255382, now seen corresponding path program 1 times [2023-11-23 22:28:37,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:37,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885685265] [2023-11-23 22:28:37,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:37,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:37,596 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 22:28:37,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:37,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885685265] [2023-11-23 22:28:37,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885685265] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:37,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:37,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:28:37,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390222538] [2023-11-23 22:28:37,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:37,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:28:37,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:37,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:28:37,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:28:37,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 222 [2023-11-23 22:28:37,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 222 transitions, 471 flow. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 22:28:37,625 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:37,625 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 222 [2023-11-23 22:28:37,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:28:38,580 INFO L124 PetriNetUnfolderBase]: 656/5675 cut-off events. [2023-11-23 22:28:38,580 INFO L125 PetriNetUnfolderBase]: For 337/337 co-relation queries the response was YES. [2023-11-23 22:28:38,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6886 conditions, 5675 events. 656/5675 cut-off events. For 337/337 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 57639 event pairs, 643 based on Foata normal form. 188/5126 useless extension candidates. Maximal degree in co-relation 5161. Up to 1052 conditions per place. [2023-11-23 22:28:38,615 INFO L140 encePairwiseOnDemand]: 216/222 looper letters, 20 selfloop transitions, 2 changer transitions 1/218 dead transitions. [2023-11-23 22:28:38,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 218 transitions, 507 flow [2023-11-23 22:28:38,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:28:38,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:28:38,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 614 transitions. [2023-11-23 22:28:38,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9219219219219219 [2023-11-23 22:28:38,618 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 614 transitions. [2023-11-23 22:28:38,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 614 transitions. [2023-11-23 22:28:38,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:28:38,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 614 transitions. [2023-11-23 22:28:38,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states 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 22:28:38,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 0 states have call successors, (0), 0 states 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 22:28:38,624 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 222.0) internal successors, (888), 4 states have internal predecessors, (888), 0 states have call successors, (0), 0 states 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 22:28:38,624 INFO L175 Difference]: Start difference. First operand has 223 places, 222 transitions, 471 flow. Second operand 3 states and 614 transitions. [2023-11-23 22:28:38,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 218 transitions, 507 flow [2023-11-23 22:28:38,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 218 transitions, 507 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:28:38,630 INFO L231 Difference]: Finished difference. Result has 224 places, 217 transitions, 465 flow [2023-11-23 22:28:38,630 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=222, PETRI_DIFFERENCE_MINUEND_FLOW=463, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=465, PETRI_PLACES=224, PETRI_TRANSITIONS=217} [2023-11-23 22:28:38,631 INFO L281 CegarLoopForPetriNet]: 223 programPoint places, 1 predicate places. [2023-11-23 22:28:38,631 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 217 transitions, 465 flow [2023-11-23 22:28:38,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states 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 22:28:38,632 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:28:38,632 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:28:38,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-23 22:28:38,633 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-23 22:28:38,633 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:28:38,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1501868719, now seen corresponding path program 1 times [2023-11-23 22:28:38,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:28:38,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965284684] [2023-11-23 22:28:38,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:28:38,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:28:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:28:38,865 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 22:28:38,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:28:38,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965284684] [2023-11-23 22:28:38,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965284684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:28:38,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:28:38,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:28:38,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528117157] [2023-11-23 22:28:38,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:28:38,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:28:38,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:28:38,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:28:38,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:28:39,115 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 222 [2023-11-23 22:28:39,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 217 transitions, 465 flow. Second operand has 6 states, 6 states have (on average 174.16666666666666) internal successors, (1045), 6 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states 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 22:28:39,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:28:39,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 222 [2023-11-23 22:28:39,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand