./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/06_ticket.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/06_ticket.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d21b75ab9211f19b3beb5c83d6d66f0a0906e2f271e4621d3ded70db8a63bb33 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:27:21,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:27:21,993 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:27:21,999 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:27:21,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:27:22,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:27:22,025 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:27:22,025 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:27:22,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:27:22,027 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:27:22,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:27:22,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:27:22,029 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:27:22,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:27:22,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:27:22,031 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:27:22,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:27:22,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:27:22,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:27:22,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:27:22,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:27:22,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:27:22,035 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:27:22,035 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:27:22,036 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:27:22,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:27:22,037 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:27:22,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:27:22,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:27:22,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:27:22,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:27:22,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:27:22,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:27:22,040 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:27:22,040 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:27:22,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:27:22,041 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:27:22,042 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:27:22,042 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:27:22,042 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:27:22,042 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:27:22,043 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_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d21b75ab9211f19b3beb5c83d6d66f0a0906e2f271e4621d3ded70db8a63bb33 [2023-11-21 22:27:22,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:27:22,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:27:22,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:27:22,342 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:27:22,343 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:27:22,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-ext/06_ticket.i [2023-11-21 22:27:25,498 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:27:25,803 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:27:25,803 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/sv-benchmarks/c/pthread-ext/06_ticket.i [2023-11-21 22:27:25,824 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/data/f9b596228/63732d5c398b4b699a04097781cdbbc9/FLAG5bbe88342 [2023-11-21 22:27:26,093 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/data/f9b596228/63732d5c398b4b699a04097781cdbbc9 [2023-11-21 22:27:26,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:27:26,098 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:27:26,099 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:27:26,099 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:27:26,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:27:26,106 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab5400b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26, skipping insertion in model container [2023-11-21 22:27:26,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,155 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:27:26,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:27:26,585 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:27:26,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:27:26,672 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:27:26,672 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:27:26,679 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:27:26,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26 WrapperNode [2023-11-21 22:27:26,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:27:26,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:27:26,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:27:26,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:27:26,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,736 INFO L138 Inliner]: procedures = 172, calls = 17, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 104 [2023-11-21 22:27:26,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:27:26,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:27:26,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:27:26,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:27:26,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,750 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,765 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,769 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:27:26,770 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:27:26,770 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:27:26,771 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:27:26,771 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (1/1) ... [2023-11-21 22:27:26,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:27:26,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:27:26,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:27:26,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf281c55-30ad-4e97-bc16-116fef961f9e/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:27:26,857 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-21 22:27:26,858 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-21 22:27:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:27:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:27:26,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:27:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:27:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:27:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:27:26,860 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:27:26,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:27:26,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:27:26,863 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:27:26,999 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:27:27,001 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:27:27,232 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:27:27,332 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:27:27,333 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:27:27,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:27:27 BoogieIcfgContainer [2023-11-21 22:27:27,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:27:27,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:27:27,338 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:27:27,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:27:27,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:27:26" (1/3) ... [2023-11-21 22:27:27,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fca3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:27:27, skipping insertion in model container [2023-11-21 22:27:27,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:26" (2/3) ... [2023-11-21 22:27:27,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fca3de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:27:27, skipping insertion in model container [2023-11-21 22:27:27,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:27:27" (3/3) ... [2023-11-21 22:27:27,345 INFO L112 eAbstractionObserver]: Analyzing ICFG 06_ticket.i [2023-11-21 22:27:27,355 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:27:27,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:27:27,367 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-21 22:27:27,368 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:27:27,436 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:27:27,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 111 transitions, 226 flow [2023-11-21 22:27:27,534 INFO L124 PetriNetUnfolderBase]: 9/122 cut-off events. [2023-11-21 22:27:27,535 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:27:27,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 122 events. 9/122 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 146 event pairs, 0 based on Foata normal form. 0/98 useless extension candidates. Maximal degree in co-relation 97. Up to 4 conditions per place. [2023-11-21 22:27:27,541 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 111 transitions, 226 flow [2023-11-21 22:27:27,547 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 106 places, 111 transitions, 226 flow [2023-11-21 22:27:27,559 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:27:27,571 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;@702a5541, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:27:27,571 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2023-11-21 22:27:27,605 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:27:27,606 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2023-11-21 22:27:27,606 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:27:27,606 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:27,607 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] [2023-11-21 22:27:27,607 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-21 22:27:27,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:27,612 INFO L85 PathProgramCache]: Analyzing trace with hash -320205703, now seen corresponding path program 1 times [2023-11-21 22:27:27,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:27,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346050046] [2023-11-21 22:27:27,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:27,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:27:27,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:27,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346050046] [2023-11-21 22:27:27,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346050046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:27,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:27,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:27:27,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233215003] [2023-11-21 22:27:27,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:27,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:27:27,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:27,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:27:27,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:27:27,962 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 111 [2023-11-21 22:27:27,966 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 111 transitions, 226 flow. Second operand has 2 states, 2 states have (on average 97.0) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:27,966 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:27,966 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 111 [2023-11-21 22:27:27,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:28,024 INFO L124 PetriNetUnfolderBase]: 2/95 cut-off events. [2023-11-21 22:27:28,025 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-21 22:27:28,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 95 events. 2/95 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 46 event pairs, 0 based on Foata normal form. 7/90 useless extension candidates. Maximal degree in co-relation 78. Up to 3 conditions per place. [2023-11-21 22:27:28,027 INFO L140 encePairwiseOnDemand]: 99/111 looper letters, 2 selfloop transitions, 0 changer transitions 0/91 dead transitions. [2023-11-21 22:27:28,027 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 91 transitions, 190 flow [2023-11-21 22:27:28,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:27:28,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:27:28,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 206 transitions. [2023-11-21 22:27:28,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9279279279279279 [2023-11-21 22:27:28,050 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 206 transitions. [2023-11-21 22:27:28,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 206 transitions. [2023-11-21 22:27:28,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:28,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 206 transitions. [2023-11-21 22:27:28,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 103.0) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:28,077 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:28,078 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:28,080 INFO L175 Difference]: Start difference. First operand has 106 places, 111 transitions, 226 flow. Second operand 2 states and 206 transitions. [2023-11-21 22:27:28,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 91 transitions, 190 flow [2023-11-21 22:27:28,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 91 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:28,092 INFO L231 Difference]: Finished difference. Result has 93 places, 91 transitions, 186 flow [2023-11-21 22:27:28,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=186, PETRI_PLACES=93, PETRI_TRANSITIONS=91} [2023-11-21 22:27:28,100 INFO L281 CegarLoopForPetriNet]: 106 programPoint places, -13 predicate places. [2023-11-21 22:27:28,100 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 91 transitions, 186 flow [2023-11-21 22:27:28,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 97.0) internal successors, (194), 2 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:28,102 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:28,102 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:28,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:27:28,103 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2023-11-21 22:27:28,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:28,105 INFO L85 PathProgramCache]: Analyzing trace with hash -387729543, now seen corresponding path program 1 times [2023-11-21 22:27:28,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:28,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463863861] [2023-11-21 22:27:28,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:28,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:28,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:28,177 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:27:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:28,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:27:28,248 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:27:28,250 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 27 remaining) [2023-11-21 22:27:28,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 27 remaining) [2023-11-21 22:27:28,253 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 27 remaining) [2023-11-21 22:27:28,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 27 remaining) [2023-11-21 22:27:28,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (22 of 27 remaining) [2023-11-21 22:27:28,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (21 of 27 remaining) [2023-11-21 22:27:28,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 27 remaining) [2023-11-21 22:27:28,255 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 27 remaining) [2023-11-21 22:27:28,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 27 remaining) [2023-11-21 22:27:28,256 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 27 remaining) [2023-11-21 22:27:28,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 27 remaining) [2023-11-21 22:27:28,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 27 remaining) [2023-11-21 22:27:28,257 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 27 remaining) [2023-11-21 22:27:28,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 27 remaining) [2023-11-21 22:27:28,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 27 remaining) [2023-11-21 22:27:28,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 27 remaining) [2023-11-21 22:27:28,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 27 remaining) [2023-11-21 22:27:28,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 27 remaining) [2023-11-21 22:27:28,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 27 remaining) [2023-11-21 22:27:28,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 27 remaining) [2023-11-21 22:27:28,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 27 remaining) [2023-11-21 22:27:28,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 27 remaining) [2023-11-21 22:27:28,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 27 remaining) [2023-11-21 22:27:28,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 27 remaining) [2023-11-21 22:27:28,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 27 remaining) [2023-11-21 22:27:28,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 27 remaining) [2023-11-21 22:27:28,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 27 remaining) [2023-11-21 22:27:28,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:27:28,268 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 22:27:28,281 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:27:28,283 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-21 22:27:28,350 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:27:28,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 186 places, 196 transitions, 402 flow [2023-11-21 22:27:28,425 INFO L124 PetriNetUnfolderBase]: 17/220 cut-off events. [2023-11-21 22:27:28,425 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:27:28,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 220 events. 17/220 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 509 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 181. Up to 6 conditions per place. [2023-11-21 22:27:28,431 INFO L82 GeneralOperation]: Start removeDead. Operand has 186 places, 196 transitions, 402 flow [2023-11-21 22:27:28,436 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 186 places, 196 transitions, 402 flow [2023-11-21 22:27:28,438 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:27:28,439 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;@702a5541, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:27:28,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-21 22:27:28,446 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:27:28,446 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2023-11-21 22:27:28,446 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:27:28,446 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:28,447 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] [2023-11-21 22:27:28,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:27:28,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:28,448 INFO L85 PathProgramCache]: Analyzing trace with hash 972243089, now seen corresponding path program 1 times [2023-11-21 22:27:28,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:28,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347776485] [2023-11-21 22:27:28,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:28,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:27:28,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:28,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347776485] [2023-11-21 22:27:28,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347776485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:28,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:28,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:27:28,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800416951] [2023-11-21 22:27:28,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:28,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:27:28,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:28,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:27:28,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:27:28,497 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 196 [2023-11-21 22:27:28,498 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 196 transitions, 402 flow. Second operand has 2 states, 2 states have (on average 169.0) internal successors, (338), 2 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:28,498 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:28,498 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 196 [2023-11-21 22:27:28,499 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:28,573 INFO L124 PetriNetUnfolderBase]: 10/307 cut-off events. [2023-11-21 22:27:28,573 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-21 22:27:28,579 INFO L83 FinitePrefix]: Finished finitePrefix Result has 327 conditions, 307 events. 10/307 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1041 event pairs, 2 based on Foata normal form. 23/282 useless extension candidates. Maximal degree in co-relation 219. Up to 9 conditions per place. [2023-11-21 22:27:28,581 INFO L140 encePairwiseOnDemand]: 174/196 looper letters, 4 selfloop transitions, 0 changer transitions 0/163 dead transitions. [2023-11-21 22:27:28,581 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 163 transitions, 344 flow [2023-11-21 22:27:28,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:27:28,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:27:28,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 362 transitions. [2023-11-21 22:27:28,585 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.923469387755102 [2023-11-21 22:27:28,585 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 362 transitions. [2023-11-21 22:27:28,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 362 transitions. [2023-11-21 22:27:28,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:28,586 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 362 transitions. [2023-11-21 22:27:28,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 181.0) internal successors, (362), 2 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:28,590 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:28,591 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 196.0) internal successors, (588), 3 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:28,591 INFO L175 Difference]: Start difference. First operand has 186 places, 196 transitions, 402 flow. Second operand 2 states and 362 transitions. [2023-11-21 22:27:28,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 163 transitions, 344 flow [2023-11-21 22:27:28,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 163 transitions, 344 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:28,597 INFO L231 Difference]: Finished difference. Result has 165 places, 163 transitions, 336 flow [2023-11-21 22:27:28,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=196, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=336, PETRI_PLACES=165, PETRI_TRANSITIONS=163} [2023-11-21 22:27:28,599 INFO L281 CegarLoopForPetriNet]: 186 programPoint places, -21 predicate places. [2023-11-21 22:27:28,599 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 163 transitions, 336 flow [2023-11-21 22:27:28,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 169.0) internal successors, (338), 2 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:28,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:28,600 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:28,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:27:28,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-21 22:27:28,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:28,601 INFO L85 PathProgramCache]: Analyzing trace with hash -235566164, now seen corresponding path program 1 times [2023-11-21 22:27:28,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:28,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627806448] [2023-11-21 22:27:28,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:28,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:28,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:27:28,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:28,649 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:27:28,649 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:27:28,650 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2023-11-21 22:27:28,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-11-21 22:27:28,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-11-21 22:27:28,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-11-21 22:27:28,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-11-21 22:27:28,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2023-11-21 22:27:28,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2023-11-21 22:27:28,651 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2023-11-21 22:27:28,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2023-11-21 22:27:28,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2023-11-21 22:27:28,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2023-11-21 22:27:28,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-11-21 22:27:28,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-11-21 22:27:28,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-11-21 22:27:28,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-11-21 22:27:28,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-11-21 22:27:28,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-11-21 22:27:28,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-11-21 22:27:28,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2023-11-21 22:27:28,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2023-11-21 22:27:28,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2023-11-21 22:27:28,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2023-11-21 22:27:28,673 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2023-11-21 22:27:28,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2023-11-21 22:27:28,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2023-11-21 22:27:28,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2023-11-21 22:27:28,674 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2023-11-21 22:27:28,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2023-11-21 22:27:28,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2023-11-21 22:27:28,675 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2023-11-21 22:27:28,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2023-11-21 22:27:28,677 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-11-21 22:27:28,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-11-21 22:27:28,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-11-21 22:27:28,678 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-11-21 22:27:28,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-11-21 22:27:28,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-11-21 22:27:28,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-11-21 22:27:28,679 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-11-21 22:27:28,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2023-11-21 22:27:28,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:27:28,680 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 22:27:28,681 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:27:28,681 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-21 22:27:28,759 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:27:28,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 266 places, 281 transitions, 580 flow [2023-11-21 22:27:28,867 INFO L124 PetriNetUnfolderBase]: 25/318 cut-off events. [2023-11-21 22:27:28,867 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-21 22:27:28,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 318 events. 25/318 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1005 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 265. Up to 8 conditions per place. [2023-11-21 22:27:28,874 INFO L82 GeneralOperation]: Start removeDead. Operand has 266 places, 281 transitions, 580 flow [2023-11-21 22:27:28,884 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 266 places, 281 transitions, 580 flow [2023-11-21 22:27:28,886 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:27:28,888 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;@702a5541, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:27:28,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2023-11-21 22:27:28,895 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:27:28,895 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2023-11-21 22:27:28,896 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:27:28,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:28,899 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] [2023-11-21 22:27:28,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 22:27:28,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:28,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1841826658, now seen corresponding path program 1 times [2023-11-21 22:27:28,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:28,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278277515] [2023-11-21 22:27:28,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:28,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:27:28,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:28,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278277515] [2023-11-21 22:27:28,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278277515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:28,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:28,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:27:28,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78499782] [2023-11-21 22:27:28,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:28,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:27:28,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:28,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:27:28,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:27:28,975 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 281 [2023-11-21 22:27:28,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 281 transitions, 580 flow. Second operand has 2 states, 2 states have (on average 241.0) internal successors, (482), 2 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:28,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:28,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 281 [2023-11-21 22:27:28,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:29,198 INFO L124 PetriNetUnfolderBase]: 32/789 cut-off events. [2023-11-21 22:27:29,199 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-11-21 22:27:29,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 842 conditions, 789 events. 32/789 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4751 event pairs, 10 based on Foata normal form. 63/720 useless extension candidates. Maximal degree in co-relation 500. Up to 25 conditions per place. [2023-11-21 22:27:29,216 INFO L140 encePairwiseOnDemand]: 249/281 looper letters, 6 selfloop transitions, 0 changer transitions 0/235 dead transitions. [2023-11-21 22:27:29,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 237 places, 235 transitions, 500 flow [2023-11-21 22:27:29,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:27:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:27:29,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 518 transitions. [2023-11-21 22:27:29,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9217081850533808 [2023-11-21 22:27:29,220 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 518 transitions. [2023-11-21 22:27:29,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 518 transitions. [2023-11-21 22:27:29,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:29,221 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 518 transitions. [2023-11-21 22:27:29,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 259.0) internal successors, (518), 2 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:29,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:29,228 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:29,229 INFO L175 Difference]: Start difference. First operand has 266 places, 281 transitions, 580 flow. Second operand 2 states and 518 transitions. [2023-11-21 22:27:29,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 237 places, 235 transitions, 500 flow [2023-11-21 22:27:29,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 235 transitions, 498 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:29,243 INFO L231 Difference]: Finished difference. Result has 237 places, 235 transitions, 486 flow [2023-11-21 22:27:29,244 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=236, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=486, PETRI_PLACES=237, PETRI_TRANSITIONS=235} [2023-11-21 22:27:29,246 INFO L281 CegarLoopForPetriNet]: 266 programPoint places, -29 predicate places. [2023-11-21 22:27:29,246 INFO L495 AbstractCegarLoop]: Abstraction has has 237 places, 235 transitions, 486 flow [2023-11-21 22:27:29,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 241.0) internal successors, (482), 2 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:29,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:29,250 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] [2023-11-21 22:27:29,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:27:29,251 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 22:27:29,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:29,252 INFO L85 PathProgramCache]: Analyzing trace with hash 915062842, now seen corresponding path program 1 times [2023-11-21 22:27:29,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:29,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81596072] [2023-11-21 22:27:29,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:29,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:27:29,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:29,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81596072] [2023-11-21 22:27:29,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81596072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:29,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:29,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:27:29,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014639756] [2023-11-21 22:27:29,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:29,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:27:29,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:29,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:27:29,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:27:29,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 281 [2023-11-21 22:27:29,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 235 transitions, 486 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 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) [2023-11-21 22:27:29,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:29,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 281 [2023-11-21 22:27:29,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:31,056 INFO L124 PetriNetUnfolderBase]: 1088/6967 cut-off events. [2023-11-21 22:27:31,057 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2023-11-21 22:27:31,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8836 conditions, 6967 events. 1088/6967 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 70051 event pairs, 439 based on Foata normal form. 0/5874 useless extension candidates. Maximal degree in co-relation 8830. Up to 1297 conditions per place. [2023-11-21 22:27:31,187 INFO L140 encePairwiseOnDemand]: 257/281 looper letters, 29 selfloop transitions, 18 changer transitions 0/255 dead transitions. [2023-11-21 22:27:31,187 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 239 places, 255 transitions, 630 flow [2023-11-21 22:27:31,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:27:31,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:27:31,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 710 transitions. [2023-11-21 22:27:31,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8422301304863582 [2023-11-21 22:27:31,192 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 710 transitions. [2023-11-21 22:27:31,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 710 transitions. [2023-11-21 22:27:31,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:31,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 710 transitions. [2023-11-21 22:27:31,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 236.66666666666666) internal successors, (710), 3 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:31,199 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:31,201 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:31,201 INFO L175 Difference]: Start difference. First operand has 237 places, 235 transitions, 486 flow. Second operand 3 states and 710 transitions. [2023-11-21 22:27:31,201 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 239 places, 255 transitions, 630 flow [2023-11-21 22:27:31,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 239 places, 255 transitions, 630 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:31,212 INFO L231 Difference]: Finished difference. Result has 241 places, 253 transitions, 642 flow [2023-11-21 22:27:31,213 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=241, PETRI_TRANSITIONS=253} [2023-11-21 22:27:31,216 INFO L281 CegarLoopForPetriNet]: 266 programPoint places, -25 predicate places. [2023-11-21 22:27:31,216 INFO L495 AbstractCegarLoop]: Abstraction has has 241 places, 253 transitions, 642 flow [2023-11-21 22:27:31,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 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) [2023-11-21 22:27:31,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:31,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:31,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-21 22:27:31,219 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 22:27:31,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:31,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2014552729, now seen corresponding path program 1 times [2023-11-21 22:27:31,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:31,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158433378] [2023-11-21 22:27:31,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:31,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:31,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:27:31,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:31,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158433378] [2023-11-21 22:27:31,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158433378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:31,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:31,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:27:31,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067597536] [2023-11-21 22:27:31,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:31,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:27:31,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:31,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:27:31,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:27:31,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 281 [2023-11-21 22:27:31,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 253 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:31,400 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:31,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 281 [2023-11-21 22:27:31,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:38,724 INFO L124 PetriNetUnfolderBase]: 7827/37248 cut-off events. [2023-11-21 22:27:38,725 INFO L125 PetriNetUnfolderBase]: For 2896/2948 co-relation queries the response was YES. [2023-11-21 22:27:39,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56109 conditions, 37248 events. 7827/37248 cut-off events. For 2896/2948 co-relation queries the response was YES. Maximal size of possible extension queue 931. Compared 517301 event pairs, 3086 based on Foata normal form. 0/32653 useless extension candidates. Maximal degree in co-relation 56101. Up to 7652 conditions per place. [2023-11-21 22:27:39,245 INFO L140 encePairwiseOnDemand]: 248/281 looper letters, 50 selfloop transitions, 24 changer transitions 0/285 dead transitions. [2023-11-21 22:27:39,246 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 285 transitions, 882 flow [2023-11-21 22:27:39,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:27:39,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:27:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 698 transitions. [2023-11-21 22:27:39,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8279952550415184 [2023-11-21 22:27:39,256 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 698 transitions. [2023-11-21 22:27:39,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 698 transitions. [2023-11-21 22:27:39,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:39,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 698 transitions. [2023-11-21 22:27:39,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 232.66666666666666) internal successors, (698), 3 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:39,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:39,263 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:39,263 INFO L175 Difference]: Start difference. First operand has 241 places, 253 transitions, 642 flow. Second operand 3 states and 698 transitions. [2023-11-21 22:27:39,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 285 transitions, 882 flow [2023-11-21 22:27:39,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 285 transitions, 840 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:27:39,620 INFO L231 Difference]: Finished difference. Result has 243 places, 277 transitions, 816 flow [2023-11-21 22:27:39,621 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=606, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=229, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=816, PETRI_PLACES=243, PETRI_TRANSITIONS=277} [2023-11-21 22:27:39,621 INFO L281 CegarLoopForPetriNet]: 266 programPoint places, -23 predicate places. [2023-11-21 22:27:39,622 INFO L495 AbstractCegarLoop]: Abstraction has has 243 places, 277 transitions, 816 flow [2023-11-21 22:27:39,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:39,622 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:39,623 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:39,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-21 22:27:39,738 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2023-11-21 22:27:39,738 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:39,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1681147176, now seen corresponding path program 1 times [2023-11-21 22:27:39,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:39,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935030025] [2023-11-21 22:27:39,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:39,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:39,772 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:27:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:27:39,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:27:39,811 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:27:39,812 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2023-11-21 22:27:39,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2023-11-21 22:27:39,812 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2023-11-21 22:27:39,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2023-11-21 22:27:39,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2023-11-21 22:27:39,818 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2023-11-21 22:27:39,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2023-11-21 22:27:39,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2023-11-21 22:27:39,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2023-11-21 22:27:39,819 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2023-11-21 22:27:39,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2023-11-21 22:27:39,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2023-11-21 22:27:39,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2023-11-21 22:27:39,820 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2023-11-21 22:27:39,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2023-11-21 22:27:39,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2023-11-21 22:27:39,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2023-11-21 22:27:39,821 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2023-11-21 22:27:39,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2023-11-21 22:27:39,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2023-11-21 22:27:39,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2023-11-21 22:27:39,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2023-11-21 22:27:39,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2023-11-21 22:27:39,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2023-11-21 22:27:39,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2023-11-21 22:27:39,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2023-11-21 22:27:39,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2023-11-21 22:27:39,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2023-11-21 22:27:39,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2023-11-21 22:27:39,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2023-11-21 22:27:39,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2023-11-21 22:27:39,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2023-11-21 22:27:39,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2023-11-21 22:27:39,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2023-11-21 22:27:39,825 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2023-11-21 22:27:39,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2023-11-21 22:27:39,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2023-11-21 22:27:39,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2023-11-21 22:27:39,826 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2023-11-21 22:27:39,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2023-11-21 22:27:39,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2023-11-21 22:27:39,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2023-11-21 22:27:39,827 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2023-11-21 22:27:39,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2023-11-21 22:27:39,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2023-11-21 22:27:39,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2023-11-21 22:27:39,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2023-11-21 22:27:39,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2023-11-21 22:27:39,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2023-11-21 22:27:39,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2023-11-21 22:27:39,829 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2023-11-21 22:27:39,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2023-11-21 22:27:39,830 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2023-11-21 22:27:39,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-21 22:27:39,830 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-21 22:27:39,831 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-21 22:27:39,831 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-11-21 22:27:39,916 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:27:39,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 346 places, 366 transitions, 760 flow [2023-11-21 22:27:40,077 INFO L124 PetriNetUnfolderBase]: 33/416 cut-off events. [2023-11-21 22:27:40,077 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-21 22:27:40,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 435 conditions, 416 events. 33/416 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1558 event pairs, 0 based on Foata normal form. 0/326 useless extension candidates. Maximal degree in co-relation 349. Up to 10 conditions per place. [2023-11-21 22:27:40,088 INFO L82 GeneralOperation]: Start removeDead. Operand has 346 places, 366 transitions, 760 flow [2023-11-21 22:27:40,097 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 346 places, 366 transitions, 760 flow [2023-11-21 22:27:40,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:27:40,099 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;@702a5541, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:27:40,099 INFO L358 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2023-11-21 22:27:40,104 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:27:40,104 INFO L124 PetriNetUnfolderBase]: 2/38 cut-off events. [2023-11-21 22:27:40,104 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:27:40,105 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:40,105 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] [2023-11-21 22:27:40,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-11-21 22:27:40,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:40,106 INFO L85 PathProgramCache]: Analyzing trace with hash 502572960, now seen corresponding path program 1 times [2023-11-21 22:27:40,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:40,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790577169] [2023-11-21 22:27:40,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:40,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:40,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:27:40,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:40,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790577169] [2023-11-21 22:27:40,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790577169] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:40,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:40,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:27:40,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428316552] [2023-11-21 22:27:40,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:40,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:27:40,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:40,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:27:40,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:27:40,145 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 366 [2023-11-21 22:27:40,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 366 transitions, 760 flow. Second operand has 2 states, 2 states have (on average 313.0) internal successors, (626), 2 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:40,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:40,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 366 [2023-11-21 22:27:40,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:40,713 INFO L124 PetriNetUnfolderBase]: 86/1815 cut-off events. [2023-11-21 22:27:40,714 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2023-11-21 22:27:40,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1949 conditions, 1815 events. 86/1815 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 14954 event pairs, 34 based on Foata normal form. 159/1662 useless extension candidates. Maximal degree in co-relation 1065. Up to 65 conditions per place. [2023-11-21 22:27:40,773 INFO L140 encePairwiseOnDemand]: 324/366 looper letters, 8 selfloop transitions, 0 changer transitions 0/307 dead transitions. [2023-11-21 22:27:40,774 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 307 transitions, 658 flow [2023-11-21 22:27:40,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:27:40,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:27:40,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 674 transitions. [2023-11-21 22:27:40,777 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9207650273224044 [2023-11-21 22:27:40,778 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 674 transitions. [2023-11-21 22:27:40,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 674 transitions. [2023-11-21 22:27:40,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:40,779 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 674 transitions. [2023-11-21 22:27:40,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 337.0) internal successors, (674), 2 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:40,784 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:40,785 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:40,786 INFO L175 Difference]: Start difference. First operand has 346 places, 366 transitions, 760 flow. Second operand 2 states and 674 transitions. [2023-11-21 22:27:40,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 307 transitions, 658 flow [2023-11-21 22:27:40,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 307 transitions, 652 flow, removed 3 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:40,795 INFO L231 Difference]: Finished difference. Result has 309 places, 307 transitions, 636 flow [2023-11-21 22:27:40,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=636, PETRI_PLACES=309, PETRI_TRANSITIONS=307} [2023-11-21 22:27:40,798 INFO L281 CegarLoopForPetriNet]: 346 programPoint places, -37 predicate places. [2023-11-21 22:27:40,798 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 307 transitions, 636 flow [2023-11-21 22:27:40,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 313.0) internal successors, (626), 2 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:40,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:40,799 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] [2023-11-21 22:27:40,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-21 22:27:40,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-11-21 22:27:40,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:40,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1320685510, now seen corresponding path program 1 times [2023-11-21 22:27:40,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:40,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399932213] [2023-11-21 22:27:40,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:40,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:40,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:27:40,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:40,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399932213] [2023-11-21 22:27:40,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399932213] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:40,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:40,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:27:40,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568863431] [2023-11-21 22:27:40,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:40,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:27:40,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:40,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:27:40,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:27:40,911 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 284 out of 366 [2023-11-21 22:27:40,913 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 307 transitions, 636 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:40,914 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:40,914 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 284 of 366 [2023-11-21 22:27:40,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:27:53,869 INFO L124 PetriNetUnfolderBase]: 15440/66543 cut-off events. [2023-11-21 22:27:53,869 INFO L125 PetriNetUnfolderBase]: For 2056/2056 co-relation queries the response was YES. [2023-11-21 22:27:54,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89663 conditions, 66543 events. 15440/66543 cut-off events. For 2056/2056 co-relation queries the response was YES. Maximal size of possible extension queue 1175. Compared 936863 event pairs, 6393 based on Foata normal form. 0/55952 useless extension candidates. Maximal degree in co-relation 89656. Up to 16154 conditions per place. [2023-11-21 22:27:55,158 INFO L140 encePairwiseOnDemand]: 334/366 looper letters, 39 selfloop transitions, 24 changer transitions 0/334 dead transitions. [2023-11-21 22:27:55,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 334 transitions, 831 flow [2023-11-21 22:27:55,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:27:55,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:27:55,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 923 transitions. [2023-11-21 22:27:55,162 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8406193078324226 [2023-11-21 22:27:55,162 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 923 transitions. [2023-11-21 22:27:55,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 923 transitions. [2023-11-21 22:27:55,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:27:55,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 923 transitions. [2023-11-21 22:27:55,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 307.6666666666667) internal successors, (923), 3 states have internal predecessors, (923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:55,171 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:55,173 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:55,173 INFO L175 Difference]: Start difference. First operand has 309 places, 307 transitions, 636 flow. Second operand 3 states and 923 transitions. [2023-11-21 22:27:55,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 334 transitions, 831 flow [2023-11-21 22:27:55,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 334 transitions, 831 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:27:55,182 INFO L231 Difference]: Finished difference. Result has 313 places, 331 transitions, 844 flow [2023-11-21 22:27:55,183 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=844, PETRI_PLACES=313, PETRI_TRANSITIONS=331} [2023-11-21 22:27:55,184 INFO L281 CegarLoopForPetriNet]: 346 programPoint places, -33 predicate places. [2023-11-21 22:27:55,184 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 331 transitions, 844 flow [2023-11-21 22:27:55,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:55,185 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:27:55,186 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:27:55,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-21 22:27:55,186 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err6ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 62 more)] === [2023-11-21 22:27:55,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:27:55,187 INFO L85 PathProgramCache]: Analyzing trace with hash -242470119, now seen corresponding path program 1 times [2023-11-21 22:27:55,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:27:55,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607968869] [2023-11-21 22:27:55,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:27:55,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:27:55,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:27:55,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:27:55,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:27:55,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607968869] [2023-11-21 22:27:55,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607968869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:27:55,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:27:55,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:27:55,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841540756] [2023-11-21 22:27:55,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:27:55,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:27:55,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:27:55,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:27:55,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:27:55,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 366 [2023-11-21 22:27:55,337 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 331 transitions, 844 flow. Second operand has 3 states, 3 states have (on average 269.3333333333333) internal successors, (808), 3 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:27:55,337 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:27:55,337 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 366 [2023-11-21 22:27:55,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:28:01,842 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1167] L693-->L703: Formula: (and (let ((.cse1 (mod (mod (+ v_~next_ticket~0_64 1) 4294967296) 3))) (let ((.cse0 (= .cse1 (mod v_~now_serving~0_22 4294967296)))) (or (and (not .cse0) (= .cse1 v_~next_ticket~0_63) (= v_~next_ticket~0_64 |v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|)) (and .cse0 (= |v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6| |v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|) (= 3 |v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|) (= |v_#race~next_ticket~0_99| 0) (= v_~next_ticket~0_64 v_~next_ticket~0_63))))) (= |v_#race~now_serving~0_29| 0)) InVars {~now_serving~0=v_~now_serving~0_22, ~next_ticket~0=v_~next_ticket~0_64, thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|} OutVars{~now_serving~0=v_~now_serving~0_22, ~next_ticket~0=v_~next_ticket~0_63, thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_~value~0#1=|v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|, #race~now_serving~0=|v_#race~now_serving~0_29|, #race~next_ticket~0=|v_#race~next_ticket~0_99|, thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6|} AuxVars[] AssignedVars[~next_ticket~0, thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_~value~0#1, #race~now_serving~0, #race~next_ticket~0, thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1][152], [Black: 352#true, 283#L713-2true, 349#true, 273#L734-5true, 214#L728true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 244#L713-1true, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 98#L703true, 360#(= |#race~c~0| 0), thr1Thread4of4ForFork0InUse]) [2023-11-21 22:28:01,842 INFO L294 olderBase$Statistics]: this new event has 107 ancestors and is cut-off event [2023-11-21 22:28:01,842 INFO L297 olderBase$Statistics]: existing Event has 103 ancestors and is cut-off event [2023-11-21 22:28:01,843 INFO L297 olderBase$Statistics]: existing Event has 103 ancestors and is cut-off event [2023-11-21 22:28:01,843 INFO L297 olderBase$Statistics]: existing Event has 103 ancestors and is cut-off event [2023-11-21 22:28:02,220 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1251] L693-->L703: Formula: (and (= |v_#race~now_serving~0_29| 0) (let ((.cse1 (mod (mod (+ v_~next_ticket~0_64 1) 4294967296) 3))) (let ((.cse0 (= .cse1 (mod v_~now_serving~0_22 4294967296)))) (or (and (= v_~next_ticket~0_64 |v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|) (not .cse0) (= .cse1 v_~next_ticket~0_63)) (and (= 3 |v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|) .cse0 (= |v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6| |v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|) (= |v_#race~next_ticket~0_99| 0) (= v_~next_ticket~0_64 v_~next_ticket~0_63)))))) InVars {~now_serving~0=v_~now_serving~0_22, thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|, ~next_ticket~0=v_~next_ticket~0_64} OutVars{~now_serving~0=v_~now_serving~0_22, ~next_ticket~0=v_~next_ticket~0_63, thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_~value~0#1=|v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|, thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6|, #race~now_serving~0=|v_#race~now_serving~0_29|, #race~next_ticket~0=|v_#race~next_ticket~0_99|} AuxVars[] AssignedVars[~next_ticket~0, thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_~value~0#1, thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1, #race~now_serving~0, #race~next_ticket~0][193], [Black: 352#true, 349#true, 109#L703true, 273#L734-5true, 214#L728true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 244#L713-1true, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 360#(= |#race~c~0| 0), 129#L713-2true, thr1Thread4of4ForFork0InUse]) [2023-11-21 22:28:02,221 INFO L294 olderBase$Statistics]: this new event has 103 ancestors and is cut-off event [2023-11-21 22:28:02,221 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-21 22:28:02,221 INFO L297 olderBase$Statistics]: existing Event has 103 ancestors and is cut-off event [2023-11-21 22:28:02,221 INFO L297 olderBase$Statistics]: existing Event has 103 ancestors and is cut-off event [2023-11-21 22:28:02,554 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1335] L693-->L703: Formula: (and (= |v_#race~now_serving~0_29| 0) (let ((.cse1 (mod (mod (+ v_~next_ticket~0_64 1) 4294967296) 3))) (let ((.cse0 (= .cse1 (mod v_~now_serving~0_22 4294967296)))) (or (and (= |v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6| |v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|) .cse0 (= 3 |v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|) (= |v_#race~next_ticket~0_99| 0) (= v_~next_ticket~0_64 v_~next_ticket~0_63)) (and (= v_~next_ticket~0_64 |v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|) (not .cse0) (= .cse1 v_~next_ticket~0_63)))))) InVars {~now_serving~0=v_~now_serving~0_22, ~next_ticket~0=v_~next_ticket~0_64, thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|} OutVars{~now_serving~0=v_~now_serving~0_22, ~next_ticket~0=v_~next_ticket~0_63, thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_~value~0#1=|v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|, #race~now_serving~0=|v_#race~now_serving~0_29|, #race~next_ticket~0=|v_#race~next_ticket~0_99|, thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6|} AuxVars[] AssignedVars[~next_ticket~0, thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_~value~0#1, #race~now_serving~0, #race~next_ticket~0, thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1][109], [Black: 352#true, 283#L713-2true, 349#true, 84#L728true, 239#L703true, 273#L734-5true, 324#L713-1true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 360#(= |#race~c~0| 0), thr1Thread4of4ForFork0InUse]) [2023-11-21 22:28:02,555 INFO L294 olderBase$Statistics]: this new event has 103 ancestors and is cut-off event [2023-11-21 22:28:02,555 INFO L297 olderBase$Statistics]: existing Event has 103 ancestors and is cut-off event [2023-11-21 22:28:02,555 INFO L297 olderBase$Statistics]: existing Event has 103 ancestors and is cut-off event [2023-11-21 22:28:02,555 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-21 22:28:02,760 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1251] L693-->L703: Formula: (and (= |v_#race~now_serving~0_29| 0) (let ((.cse1 (mod (mod (+ v_~next_ticket~0_64 1) 4294967296) 3))) (let ((.cse0 (= .cse1 (mod v_~now_serving~0_22 4294967296)))) (or (and (= v_~next_ticket~0_64 |v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|) (not .cse0) (= .cse1 v_~next_ticket~0_63)) (and (= 3 |v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|) .cse0 (= |v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6| |v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|) (= |v_#race~next_ticket~0_99| 0) (= v_~next_ticket~0_64 v_~next_ticket~0_63)))))) InVars {~now_serving~0=v_~now_serving~0_22, thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|, ~next_ticket~0=v_~next_ticket~0_64} OutVars{~now_serving~0=v_~now_serving~0_22, ~next_ticket~0=v_~next_ticket~0_63, thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_~value~0#1=|v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|, thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6|, #race~now_serving~0=|v_#race~now_serving~0_29|, #race~next_ticket~0=|v_#race~next_ticket~0_99|} AuxVars[] AssignedVars[~next_ticket~0, thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_~value~0#1, thr1Thread4of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1, #race~now_serving~0, #race~next_ticket~0][193], [Black: 352#true, 349#true, 109#L703true, 273#L734-5true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 244#L713-1true, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 360#(= |#race~c~0| 0), 129#L713-2true, thr1Thread4of4ForFork0InUse, 258#L728-1true]) [2023-11-21 22:28:02,760 INFO L294 olderBase$Statistics]: this new event has 104 ancestors and is cut-off event [2023-11-21 22:28:02,761 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 22:28:02,761 INFO L297 olderBase$Statistics]: existing Event has 104 ancestors and is cut-off event [2023-11-21 22:28:02,761 INFO L297 olderBase$Statistics]: existing Event has 104 ancestors and is cut-off event [2023-11-21 22:28:02,821 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1167] L693-->L703: Formula: (and (let ((.cse1 (mod (mod (+ v_~next_ticket~0_64 1) 4294967296) 3))) (let ((.cse0 (= .cse1 (mod v_~now_serving~0_22 4294967296)))) (or (and (not .cse0) (= .cse1 v_~next_ticket~0_63) (= v_~next_ticket~0_64 |v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|)) (and .cse0 (= |v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6| |v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|) (= 3 |v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|) (= |v_#race~next_ticket~0_99| 0) (= v_~next_ticket~0_64 v_~next_ticket~0_63))))) (= |v_#race~now_serving~0_29| 0)) InVars {~now_serving~0=v_~now_serving~0_22, ~next_ticket~0=v_~next_ticket~0_64, thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|} OutVars{~now_serving~0=v_~now_serving~0_22, ~next_ticket~0=v_~next_ticket~0_63, thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_~value~0#1=|v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|, #race~now_serving~0=|v_#race~now_serving~0_29|, #race~next_ticket~0=|v_#race~next_ticket~0_99|, thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6|} AuxVars[] AssignedVars[~next_ticket~0, thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_~value~0#1, #race~now_serving~0, #race~next_ticket~0, thr1Thread3of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1][152], [Black: 352#true, 283#L713-2true, 349#true, 273#L734-5true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 244#L713-1true, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 98#L703true, 360#(= |#race~c~0| 0), thr1Thread4of4ForFork0InUse, 258#L728-1true]) [2023-11-21 22:28:02,822 INFO L294 olderBase$Statistics]: this new event has 104 ancestors and is cut-off event [2023-11-21 22:28:02,822 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 22:28:02,822 INFO L297 olderBase$Statistics]: existing Event has 104 ancestors and is cut-off event [2023-11-21 22:28:02,822 INFO L297 olderBase$Statistics]: existing Event has 104 ancestors and is cut-off event [2023-11-21 22:28:03,210 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1335] L693-->L703: Formula: (and (= |v_#race~now_serving~0_29| 0) (let ((.cse1 (mod (mod (+ v_~next_ticket~0_64 1) 4294967296) 3))) (let ((.cse0 (= .cse1 (mod v_~now_serving~0_22 4294967296)))) (or (and (= |v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6| |v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|) .cse0 (= 3 |v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|) (= |v_#race~next_ticket~0_99| 0) (= v_~next_ticket~0_64 v_~next_ticket~0_63)) (and (= v_~next_ticket~0_64 |v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|) (not .cse0) (= .cse1 v_~next_ticket~0_63)))))) InVars {~now_serving~0=v_~now_serving~0_22, ~next_ticket~0=v_~next_ticket~0_64, thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_5|} OutVars{~now_serving~0=v_~now_serving~0_22, ~next_ticket~0=v_~next_ticket~0_63, thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_~value~0#1=|v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_~value~0#1_13|, #race~now_serving~0=|v_#race~now_serving~0_29|, #race~next_ticket~0=|v_#race~next_ticket~0_99|, thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1=|v_thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1_6|} AuxVars[] AssignedVars[~next_ticket~0, thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_~value~0#1, #race~now_serving~0, #race~next_ticket~0, thr1Thread1of4ForFork0_fetch_and_increment__next_ticket_#t~nondet3#1][109], [Black: 352#true, 283#L713-2true, 349#true, 239#L703true, 273#L734-5true, 155#L728-1true, 324#L713-1true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 360#(= |#race~c~0| 0), thr1Thread4of4ForFork0InUse]) [2023-11-21 22:28:03,210 INFO L294 olderBase$Statistics]: this new event has 104 ancestors and is cut-off event [2023-11-21 22:28:03,210 INFO L297 olderBase$Statistics]: existing Event has 104 ancestors and is cut-off event [2023-11-21 22:28:03,210 INFO L297 olderBase$Statistics]: existing Event has 104 ancestors and is cut-off event [2023-11-21 22:28:03,211 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 22:28:03,972 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1269] L726-->L726-1: Formula: (= |v_#race~c~0_1| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_1|} AuxVars[] AssignedVars[#race~c~0][270], [132#L726-1true, Black: 352#true, 349#true, 239#L703true, 273#L734-5true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 67#L727-2true, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 360#(= |#race~c~0| 0), 129#L713-2true, thr1Thread4of4ForFork0InUse]) [2023-11-21 22:28:03,972 INFO L294 olderBase$Statistics]: this new event has 105 ancestors and is cut-off event [2023-11-21 22:28:03,972 INFO L297 olderBase$Statistics]: existing Event has 105 ancestors and is cut-off event [2023-11-21 22:28:03,972 INFO L297 olderBase$Statistics]: existing Event has 105 ancestors and is cut-off event [2023-11-21 22:28:03,973 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-21 22:28:04,350 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1185] L726-->L726-1: Formula: (= |v_#race~c~0_1| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_1|} AuxVars[] AssignedVars[#race~c~0][231], [Black: 352#true, 41#L713-1true, 349#true, 273#L734-5true, 311#L726-1true, 214#L728true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 96#L703true, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 360#(= |#race~c~0| 0), thr1Thread4of4ForFork0InUse]) [2023-11-21 22:28:04,351 INFO L294 olderBase$Statistics]: this new event has 106 ancestors and is cut-off event [2023-11-21 22:28:04,351 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 22:28:04,351 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2023-11-21 22:28:04,351 INFO L297 olderBase$Statistics]: existing Event has 106 ancestors and is cut-off event [2023-11-21 22:28:05,190 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1185] L726-->L726-1: Formula: (= |v_#race~c~0_1| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_1|} AuxVars[] AssignedVars[#race~c~0][231], [Black: 352#true, 41#L713-1true, 349#true, 273#L734-5true, 311#L726-1true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 96#L703true, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 360#(= |#race~c~0| 0), thr1Thread4of4ForFork0InUse, 258#L728-1true]) [2023-11-21 22:28:05,191 INFO L294 olderBase$Statistics]: this new event has 107 ancestors and is cut-off event [2023-11-21 22:28:05,191 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-21 22:28:05,191 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-21 22:28:05,191 INFO L297 olderBase$Statistics]: existing Event has 109 ancestors and is cut-off event [2023-11-21 22:28:05,307 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1269] L726-->L726-1: Formula: (= |v_#race~c~0_1| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_1|} AuxVars[] AssignedVars[#race~c~0][270], [132#L726-1true, Black: 352#true, 349#true, 84#L728true, 239#L703true, 273#L734-5true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 360#(= |#race~c~0| 0), 129#L713-2true, thr1Thread4of4ForFork0InUse]) [2023-11-21 22:28:05,307 INFO L294 olderBase$Statistics]: this new event has 107 ancestors and is cut-off event [2023-11-21 22:28:05,307 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-21 22:28:05,307 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is cut-off event [2023-11-21 22:28:05,307 INFO L297 olderBase$Statistics]: existing Event has 109 ancestors and is cut-off event [2023-11-21 22:28:05,729 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1269] L726-->L726-1: Formula: (= |v_#race~c~0_1| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_1|} AuxVars[] AssignedVars[#race~c~0][270], [132#L726-1true, Black: 352#true, 349#true, 273#L734-5true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 96#L703true, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 360#(= |#race~c~0| 0), 129#L713-2true, thr1Thread4of4ForFork0InUse, 258#L728-1true]) [2023-11-21 22:28:05,729 INFO L294 olderBase$Statistics]: this new event has 108 ancestors and is cut-off event [2023-11-21 22:28:05,729 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 22:28:05,729 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 22:28:05,729 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 22:28:05,863 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1269] L726-->L726-1: Formula: (= |v_#race~c~0_1| 0) InVars {} OutVars{#race~c~0=|v_#race~c~0_1|} AuxVars[] AssignedVars[#race~c~0][270], [132#L726-1true, Black: 352#true, 349#true, 239#L703true, 155#L728-1true, 273#L734-5true, thr1Thread1of4ForFork0InUse, thr1Thread2of4ForFork0InUse, 354#(= |#race~now_serving~0| 0), thr1Thread3of4ForFork0InUse, 360#(= |#race~c~0| 0), 129#L713-2true, thr1Thread4of4ForFork0InUse]) [2023-11-21 22:28:05,863 INFO L294 olderBase$Statistics]: this new event has 108 ancestors and is cut-off event [2023-11-21 22:28:05,863 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 22:28:05,863 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-21 22:28:05,864 INFO L297 olderBase$Statistics]: existing Event has 110 ancestors and is cut-off event