./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 490e43bb8ca19cea87b27390f3d2ab0cf6fc9da6355c682d1c6272a9c3d813c1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:19:18,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:19:18,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:19:18,837 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:19:18,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:19:18,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:19:18,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:19:18,881 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:19:18,882 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:19:18,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:19:18,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:19:18,890 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:19:18,890 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:19:18,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:19:18,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:19:18,893 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:19:18,894 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:19:18,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:19:18,895 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:19:18,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:19:18,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:19:18,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:19:18,897 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:19:18,897 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:19:18,898 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:19:18,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:19:18,899 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:19:18,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:19:18,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:19:18,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:19:18,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:19:18,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:19:18,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:19:18,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:19:18,903 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:19:18,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:19:18,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:19:18,904 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:19:18,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:19:18,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:19:18,906 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:19:18,906 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_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 490e43bb8ca19cea87b27390f3d2ab0cf6fc9da6355c682d1c6272a9c3d813c1 [2023-11-12 02:19:19,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:19:19,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:19:19,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:19:19,302 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:19:19,303 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:19:19,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.i [2023-11-12 02:19:22,541 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:19:22,948 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:19:22,952 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.i [2023-11-12 02:19:22,975 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/data/2a6e31df7/7660bb29828a498caf4965b80161e8d3/FLAG672cd4e8f [2023-11-12 02:19:22,991 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/data/2a6e31df7/7660bb29828a498caf4965b80161e8d3 [2023-11-12 02:19:22,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:19:23,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:19:23,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:23,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:19:23,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:19:23,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:22" (1/1) ... [2023-11-12 02:19:23,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f57d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23, skipping insertion in model container [2023-11-12 02:19:23,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:19:22" (1/1) ... [2023-11-12 02:19:23,081 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:19:23,461 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:23,476 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:19:23,553 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:19:23,588 WARN L672 CHandler]: The function pthread_detach is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:19:23,596 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:19:23,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23 WrapperNode [2023-11-12 02:19:23,597 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:19:23,598 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:23,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:19:23,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:19:23,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (1/1) ... [2023-11-12 02:19:23,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (1/1) ... [2023-11-12 02:19:23,657 INFO L138 Inliner]: procedures = 159, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2023-11-12 02:19:23,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:19:23,658 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:19:23,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:19:23,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:19:23,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (1/1) ... [2023-11-12 02:19:23,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (1/1) ... [2023-11-12 02:19:23,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (1/1) ... [2023-11-12 02:19:23,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (1/1) ... [2023-11-12 02:19:23,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (1/1) ... [2023-11-12 02:19:23,705 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (1/1) ... [2023-11-12 02:19:23,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (1/1) ... [2023-11-12 02:19:23,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (1/1) ... [2023-11-12 02:19:23,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:19:23,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:19:23,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:19:23,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:19:23,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (1/1) ... [2023-11-12 02:19:23,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:19:23,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:19:23,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:19:23,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_db0ad60e-caa4-4176-9730-0f211c1f7c51/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:19:23,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:19:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:19:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 02:19:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:19:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:19:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:19:23,802 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2023-11-12 02:19:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:19:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-12 02:19:23,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-12 02:19:23,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:19:23,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:19:23,805 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:19:23,946 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:19:23,948 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:19:24,230 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:19:24,239 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:19:24,239 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:19:24,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:24 BoogieIcfgContainer [2023-11-12 02:19:24,242 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:19:24,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:19:24,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:19:24,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:19:24,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:19:22" (1/3) ... [2023-11-12 02:19:24,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab48a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:24, skipping insertion in model container [2023-11-12 02:19:24,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:19:23" (2/3) ... [2023-11-12 02:19:24,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab48a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:19:24, skipping insertion in model container [2023-11-12 02:19:24,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:19:24" (3/3) ... [2023-11-12 02:19:24,251 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-race.i [2023-11-12 02:19:24,260 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:19:24,271 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:19:24,272 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-12 02:19:24,272 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:19:24,366 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:19:24,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 139 transitions, 282 flow [2023-11-12 02:19:24,549 INFO L124 PetriNetUnfolderBase]: 13/175 cut-off events. [2023-11-12 02:19:24,549 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:19:24,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 175 events. 13/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 325 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2023-11-12 02:19:24,557 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 139 transitions, 282 flow [2023-11-12 02:19:24,569 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 139 transitions, 282 flow [2023-11-12 02:19:24,573 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:19:24,583 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 139 transitions, 282 flow [2023-11-12 02:19:24,590 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 139 transitions, 282 flow [2023-11-12 02:19:24,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 139 transitions, 282 flow [2023-11-12 02:19:24,678 INFO L124 PetriNetUnfolderBase]: 13/175 cut-off events. [2023-11-12 02:19:24,678 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:19:24,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 175 events. 13/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 325 event pairs, 0 based on Foata normal form. 0/145 useless extension candidates. Maximal degree in co-relation 103. Up to 4 conditions per place. [2023-11-12 02:19:24,688 INFO L119 LiptonReduction]: Number of co-enabled transitions 5390 [2023-11-12 02:19:28,029 INFO L134 LiptonReduction]: Checked pairs total: 24043 [2023-11-12 02:19:28,032 INFO L136 LiptonReduction]: Total number of compositions: 91 [2023-11-12 02:19:28,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:19:28,066 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;@1e4899c0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:19:28,067 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-12 02:19:28,071 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:19:28,072 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-12 02:19:28,072 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:19:28,072 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:28,073 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:19:28,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:19:28,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:28,084 INFO L85 PathProgramCache]: Analyzing trace with hash 15006211, now seen corresponding path program 1 times [2023-11-12 02:19:28,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:28,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794880411] [2023-11-12 02:19:28,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:28,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:28,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:19:28,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:28,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794880411] [2023-11-12 02:19:28,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794880411] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:28,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:28,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:19:28,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184964620] [2023-11-12 02:19:28,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:28,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:19:28,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:28,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:19:28,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:19:28,489 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 230 [2023-11-12 02:19:28,495 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 122 flow. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:28,495 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:28,495 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 230 [2023-11-12 02:19:28,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:28,755 INFO L124 PetriNetUnfolderBase]: 282/830 cut-off events. [2023-11-12 02:19:28,755 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:19:28,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 830 events. 282/830 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 5092 event pairs, 76 based on Foata normal form. 22/742 useless extension candidates. Maximal degree in co-relation 1347. Up to 328 conditions per place. [2023-11-12 02:19:28,776 INFO L140 encePairwiseOnDemand]: 214/230 looper letters, 43 selfloop transitions, 8 changer transitions 0/74 dead transitions. [2023-11-12 02:19:28,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 74 transitions, 254 flow [2023-11-12 02:19:28,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:19:28,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:19:28,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 420 transitions. [2023-11-12 02:19:28,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6086956521739131 [2023-11-12 02:19:28,799 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 420 transitions. [2023-11-12 02:19:28,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 420 transitions. [2023-11-12 02:19:28,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:28,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 420 transitions. [2023-11-12 02:19:28,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:28,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 230.0) internal successors, (920), 4 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:28,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 230.0) internal successors, (920), 4 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:28,818 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 122 flow. Second operand 3 states and 420 transitions. [2023-11-12 02:19:28,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 74 transitions, 254 flow [2023-11-12 02:19:28,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 74 transitions, 254 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:19:28,826 INFO L231 Difference]: Finished difference. Result has 57 places, 59 transitions, 170 flow [2023-11-12 02:19:28,829 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=230, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=57, PETRI_TRANSITIONS=59} [2023-11-12 02:19:28,833 INFO L281 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2023-11-12 02:19:28,833 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 59 transitions, 170 flow [2023-11-12 02:19:28,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:28,834 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:28,834 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-12 02:19:28,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:19:28,835 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-12 02:19:28,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:28,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1569459582, now seen corresponding path program 1 times [2023-11-12 02:19:28,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:28,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908010509] [2023-11-12 02:19:28,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:28,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:19:28,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:19:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:19:29,005 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:19:29,005 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:19:29,007 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2023-11-12 02:19:29,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-11-12 02:19:29,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-11-12 02:19:29,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-11-12 02:19:29,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-11-12 02:19:29,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-11-12 02:19:29,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2023-11-12 02:19:29,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-11-12 02:19:29,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-11-12 02:19:29,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-11-12 02:19:29,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2023-11-12 02:19:29,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2023-11-12 02:19:29,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2023-11-12 02:19:29,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-11-12 02:19:29,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-11-12 02:19:29,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-11-12 02:19:29,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-11-12 02:19:29,023 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-11-12 02:19:29,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:19:29,024 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:19:29,028 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:19:29,028 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 02:19:29,085 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:19:29,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 189 transitions, 388 flow [2023-11-12 02:19:29,157 INFO L124 PetriNetUnfolderBase]: 20/279 cut-off events. [2023-11-12 02:19:29,157 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:19:29,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 279 events. 20/279 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 634 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 176. Up to 6 conditions per place. [2023-11-12 02:19:29,160 INFO L82 GeneralOperation]: Start removeDead. Operand has 184 places, 189 transitions, 388 flow [2023-11-12 02:19:29,164 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 189 transitions, 388 flow [2023-11-12 02:19:29,165 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:19:29,168 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 189 transitions, 388 flow [2023-11-12 02:19:29,168 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 189 transitions, 388 flow [2023-11-12 02:19:29,169 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 189 transitions, 388 flow [2023-11-12 02:19:29,221 INFO L124 PetriNetUnfolderBase]: 20/279 cut-off events. [2023-11-12 02:19:29,222 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:19:29,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 279 events. 20/279 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 634 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 176. Up to 6 conditions per place. [2023-11-12 02:19:29,238 INFO L119 LiptonReduction]: Number of co-enabled transitions 15680 [2023-11-12 02:19:32,124 INFO L134 LiptonReduction]: Checked pairs total: 83665 [2023-11-12 02:19:32,125 INFO L136 LiptonReduction]: Total number of compositions: 108 [2023-11-12 02:19:32,127 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:19:32,129 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;@1e4899c0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:19:32,129 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-12 02:19:32,131 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:19:32,131 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-12 02:19:32,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:19:32,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:32,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:19:32,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 02:19:32,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:32,133 INFO L85 PathProgramCache]: Analyzing trace with hash 25680349, now seen corresponding path program 1 times [2023-11-12 02:19:32,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:32,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408243729] [2023-11-12 02:19:32,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:32,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:32,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:19:32,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:32,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408243729] [2023-11-12 02:19:32,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408243729] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:32,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:32,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:19:32,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466925846] [2023-11-12 02:19:32,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:32,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:19:32,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:32,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:19:32,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:19:32,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 297 [2023-11-12 02:19:32,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 95 transitions, 200 flow. Second operand has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:32,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:32,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 297 [2023-11-12 02:19:32,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:35,187 INFO L124 PetriNetUnfolderBase]: 12085/24625 cut-off events. [2023-11-12 02:19:35,188 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-11-12 02:19:35,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42938 conditions, 24625 events. 12085/24625 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 234762 event pairs, 4038 based on Foata normal form. 830/22277 useless extension candidates. Maximal degree in co-relation 22423. Up to 10060 conditions per place. [2023-11-12 02:19:35,472 INFO L140 encePairwiseOnDemand]: 270/297 looper letters, 76 selfloop transitions, 16 changer transitions 0/132 dead transitions. [2023-11-12 02:19:35,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 132 transitions, 463 flow [2023-11-12 02:19:35,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:19:35,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:19:35,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 585 transitions. [2023-11-12 02:19:35,479 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6565656565656566 [2023-11-12 02:19:35,479 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 585 transitions. [2023-11-12 02:19:35,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 585 transitions. [2023-11-12 02:19:35,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:35,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 585 transitions. [2023-11-12 02:19:35,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:35,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:35,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:35,491 INFO L175 Difference]: Start difference. First operand has 92 places, 95 transitions, 200 flow. Second operand 3 states and 585 transitions. [2023-11-12 02:19:35,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 132 transitions, 463 flow [2023-11-12 02:19:35,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 132 transitions, 463 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:19:35,498 INFO L231 Difference]: Finished difference. Result has 95 places, 106 transitions, 330 flow [2023-11-12 02:19:35,498 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=95, PETRI_TRANSITIONS=106} [2023-11-12 02:19:35,501 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 3 predicate places. [2023-11-12 02:19:35,501 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 106 transitions, 330 flow [2023-11-12 02:19:35,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.33333333333334) internal successors, (481), 3 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:35,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:35,502 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:35,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:19:35,503 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 02:19:35,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:35,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1084150279, now seen corresponding path program 1 times [2023-11-12 02:19:35,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:35,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386814284] [2023-11-12 02:19:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:35,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:35,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:19:35,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:35,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386814284] [2023-11-12 02:19:35,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386814284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:35,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:35,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:19:35,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000565360] [2023-11-12 02:19:35,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:35,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:19:35,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:35,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:19:35,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:19:35,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 297 [2023-11-12 02:19:35,636 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 106 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:35,636 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:35,636 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 297 [2023-11-12 02:19:35,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:38,568 INFO L124 PetriNetUnfolderBase]: 9636/21797 cut-off events. [2023-11-12 02:19:38,569 INFO L125 PetriNetUnfolderBase]: For 4582/4902 co-relation queries the response was YES. [2023-11-12 02:19:38,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41957 conditions, 21797 events. 9636/21797 cut-off events. For 4582/4902 co-relation queries the response was YES. Maximal size of possible extension queue 820. Compared 224466 event pairs, 5935 based on Foata normal form. 35/18887 useless extension candidates. Maximal degree in co-relation 15674. Up to 12242 conditions per place. [2023-11-12 02:19:38,787 INFO L140 encePairwiseOnDemand]: 292/297 looper letters, 65 selfloop transitions, 4 changer transitions 0/135 dead transitions. [2023-11-12 02:19:38,788 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 135 transitions, 550 flow [2023-11-12 02:19:38,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:19:38,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:19:38,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 578 transitions. [2023-11-12 02:19:38,792 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6487093153759821 [2023-11-12 02:19:38,792 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 578 transitions. [2023-11-12 02:19:38,792 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 578 transitions. [2023-11-12 02:19:38,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:38,793 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 578 transitions. [2023-11-12 02:19:38,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:38,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:38,800 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:38,801 INFO L175 Difference]: Start difference. First operand has 95 places, 106 transitions, 330 flow. Second operand 3 states and 578 transitions. [2023-11-12 02:19:38,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 135 transitions, 550 flow [2023-11-12 02:19:38,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 135 transitions, 510 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-12 02:19:38,835 INFO L231 Difference]: Finished difference. Result has 96 places, 109 transitions, 324 flow [2023-11-12 02:19:38,836 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=96, PETRI_TRANSITIONS=109} [2023-11-12 02:19:38,839 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 4 predicate places. [2023-11-12 02:19:38,839 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 109 transitions, 324 flow [2023-11-12 02:19:38,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 3 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:38,841 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:38,841 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:19:38,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:19:38,841 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 02:19:38,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:38,842 INFO L85 PathProgramCache]: Analyzing trace with hash -933638472, now seen corresponding path program 1 times [2023-11-12 02:19:38,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:38,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961479731] [2023-11-12 02:19:38,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:38,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:19:38,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:38,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961479731] [2023-11-12 02:19:38,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961479731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:38,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:38,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:19:38,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357256084] [2023-11-12 02:19:38,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:38,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:19:38,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:38,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:19:38,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:19:38,992 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 297 [2023-11-12 02:19:38,994 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 109 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:38,994 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:38,994 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 297 [2023-11-12 02:19:38,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:19:39,263 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 38#L692true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-12 02:19:39,265 INFO L294 olderBase$Statistics]: this new event has 22 ancestors and is cut-off event [2023-11-12 02:19:39,265 INFO L297 olderBase$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-11-12 02:19:39,265 INFO L297 olderBase$Statistics]: existing Event has 22 ancestors and is cut-off event [2023-11-12 02:19:39,265 INFO L297 olderBase$Statistics]: existing Event has 19 ancestors and is cut-off event [2023-11-12 02:19:39,274 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [60#L693-4true, Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 122#L691-2true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-12 02:19:39,275 INFO L294 olderBase$Statistics]: this new event has 23 ancestors and is cut-off event [2023-11-12 02:19:39,275 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-11-12 02:19:39,275 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-11-12 02:19:39,275 INFO L297 olderBase$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-11-12 02:19:39,370 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [60#L693-4true, Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-12 02:19:39,370 INFO L294 olderBase$Statistics]: this new event has 23 ancestors and is cut-off event [2023-11-12 02:19:39,370 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-11-12 02:19:39,370 INFO L297 olderBase$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-11-12 02:19:39,370 INFO L297 olderBase$Statistics]: existing Event has 20 ancestors and is cut-off event [2023-11-12 02:19:39,371 INFO L297 olderBase$Statistics]: existing Event has 23 ancestors and is cut-off event [2023-11-12 02:19:39,683 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 179#L696true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 122#L691-2true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-12 02:19:39,683 INFO L294 olderBase$Statistics]: this new event has 28 ancestors and is cut-off event [2023-11-12 02:19:39,683 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-12 02:19:39,683 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-12 02:19:39,683 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-12 02:19:39,757 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 115#L696-3true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 122#L691-2true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-12 02:19:39,758 INFO L294 olderBase$Statistics]: this new event has 29 ancestors and is cut-off event [2023-11-12 02:19:39,758 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-12 02:19:39,758 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-12 02:19:39,758 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-12 02:19:39,815 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 179#L696true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-12 02:19:39,815 INFO L294 olderBase$Statistics]: this new event has 28 ancestors and is cut-off event [2023-11-12 02:19:39,815 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-12 02:19:39,815 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-12 02:19:39,815 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-12 02:19:39,816 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-12 02:19:39,816 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 115#L696-3true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-12 02:19:39,816 INFO L294 olderBase$Statistics]: this new event has 29 ancestors and is cut-off event [2023-11-12 02:19:39,816 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-12 02:19:39,816 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-12 02:19:39,816 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-12 02:19:39,816 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-12 02:19:39,835 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 59#L696-5true, 122#L691-2true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-12 02:19:39,835 INFO L294 olderBase$Statistics]: this new event has 30 ancestors and is cut-off event [2023-11-12 02:19:39,835 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-12 02:19:39,835 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-12 02:19:39,835 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-12 02:19:39,839 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 59#L696-5true, threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-12 02:19:39,839 INFO L294 olderBase$Statistics]: this new event has 30 ancestors and is cut-off event [2023-11-12 02:19:39,839 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-12 02:19:39,840 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-12 02:19:39,840 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-12 02:19:39,840 INFO L297 olderBase$Statistics]: existing Event has 30 ancestors and is cut-off event [2023-11-12 02:19:39,922 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 122#L691-2true, threadThread1of2ForFork0InUse, 21#L696-7true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true]) [2023-11-12 02:19:39,922 INFO L294 olderBase$Statistics]: this new event has 31 ancestors and is cut-off event [2023-11-12 02:19:39,922 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-12 02:19:39,923 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-12 02:19:39,923 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-12 02:19:39,928 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 21#L696-7true, 98#L712-1true, 198#true]) [2023-11-12 02:19:39,928 INFO L294 olderBase$Statistics]: this new event has 31 ancestors and is cut-off event [2023-11-12 02:19:39,928 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-12 02:19:39,929 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-12 02:19:39,929 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-12 02:19:39,929 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-12 02:19:39,970 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [60#L693-4true, Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true]) [2023-11-12 02:19:39,970 INFO L294 olderBase$Statistics]: this new event has 31 ancestors and is cut-off event [2023-11-12 02:19:39,970 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-12 02:19:39,970 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-12 02:19:39,970 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-12 02:19:40,012 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 122#L691-2true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true, 155#L698true]) [2023-11-12 02:19:40,013 INFO L294 olderBase$Statistics]: this new event has 32 ancestors and is cut-off event [2023-11-12 02:19:40,013 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-12 02:19:40,013 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-12 02:19:40,013 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-12 02:19:40,020 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([495] L712-4-->L712-1: Formula: (= 0 |v_#race~threads_alive~0_1|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_1|} AuxVars[] AssignedVars[#race~threads_alive~0][13], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 98#L712-1true, 198#true, 155#L698true]) [2023-11-12 02:19:40,020 INFO L294 olderBase$Statistics]: this new event has 32 ancestors and is cut-off event [2023-11-12 02:19:40,020 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-12 02:19:40,021 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-12 02:19:40,021 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-12 02:19:40,021 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-12 02:19:40,354 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([619] L701-->L701-1: Formula: (= |v_#race~threads_alive~0_10| 0) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_10|} AuxVars[] AssignedVars[#race~threads_alive~0][93], [Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, 39#L701-1true, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true]) [2023-11-12 02:19:40,354 INFO L294 olderBase$Statistics]: this new event has 33 ancestors and is cut-off event [2023-11-12 02:19:40,354 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-12 02:19:40,355 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-12 02:19:40,355 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-12 02:19:40,437 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([619] L701-->L701-1: Formula: (= |v_#race~threads_alive~0_10| 0) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_10|} AuxVars[] AssignedVars[#race~threads_alive~0][93], [Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, 39#L701-1true, 122#L691-2true, threadThread2of2ForFork0InUse, 135#L716-2true, 198#true]) [2023-11-12 02:19:40,437 INFO L294 olderBase$Statistics]: this new event has 34 ancestors and is cut-off event [2023-11-12 02:19:40,438 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-12 02:19:40,438 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-12 02:19:40,438 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-12 02:19:40,438 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 179#L696true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true]) [2023-11-12 02:19:40,438 INFO L294 olderBase$Statistics]: this new event has 33 ancestors and is not cut-off event [2023-11-12 02:19:40,438 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is not cut-off event [2023-11-12 02:19:40,439 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is not cut-off event [2023-11-12 02:19:40,439 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is not cut-off event [2023-11-12 02:19:40,443 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 115#L696-3true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true]) [2023-11-12 02:19:40,443 INFO L294 olderBase$Statistics]: this new event has 37 ancestors and is cut-off event [2023-11-12 02:19:40,444 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-12 02:19:40,444 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-12 02:19:40,444 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-12 02:19:40,541 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, 59#L696-5true, threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true]) [2023-11-12 02:19:40,542 INFO L294 olderBase$Statistics]: this new event has 38 ancestors and is cut-off event [2023-11-12 02:19:40,542 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-12 02:19:40,542 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-12 02:19:40,542 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-12 02:19:40,633 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 21#L696-7true, 198#true, 152#L716-1true]) [2023-11-12 02:19:40,633 INFO L294 olderBase$Statistics]: this new event has 39 ancestors and is cut-off event [2023-11-12 02:19:40,633 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-11-12 02:19:40,634 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-11-12 02:19:40,634 INFO L297 olderBase$Statistics]: existing Event has 36 ancestors and is cut-off event [2023-11-12 02:19:40,728 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, 122#L691-2true, threadThread2of2ForFork0InUse, 198#true, 152#L716-1true, 155#L698true]) [2023-11-12 02:19:40,728 INFO L294 olderBase$Statistics]: this new event has 40 ancestors and is cut-off event [2023-11-12 02:19:40,728 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-11-12 02:19:40,729 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-11-12 02:19:40,729 INFO L297 olderBase$Statistics]: existing Event has 37 ancestors and is cut-off event [2023-11-12 02:19:41,014 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [38#L692true, Black: 187#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 133#L701-2true, 198#true, 152#L716-1true]) [2023-11-12 02:19:41,014 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2023-11-12 02:19:41,015 INFO L297 olderBase$Statistics]: existing Event has 41 ancestors and is cut-off event [2023-11-12 02:19:41,015 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-11-12 02:19:41,015 INFO L297 olderBase$Statistics]: existing Event has 38 ancestors and is cut-off event [2023-11-12 02:19:41,254 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [60#L693-4true, Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 133#L701-2true, 198#true, 152#L716-1true]) [2023-11-12 02:19:41,255 INFO L294 olderBase$Statistics]: this new event has 42 ancestors and is cut-off event [2023-11-12 02:19:41,256 INFO L297 olderBase$Statistics]: existing Event has 42 ancestors and is cut-off event [2023-11-12 02:19:41,256 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-11-12 02:19:41,256 INFO L297 olderBase$Statistics]: existing Event has 39 ancestors and is cut-off event [2023-11-12 02:19:41,566 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 179#L696true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), 193#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 198#true, 133#L701-2true, 152#L716-1true]) [2023-11-12 02:19:41,567 INFO L294 olderBase$Statistics]: this new event has 47 ancestors and is cut-off event [2023-11-12 02:19:41,567 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-12 02:19:41,567 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-11-12 02:19:41,567 INFO L297 olderBase$Statistics]: existing Event has 44 ancestors and is cut-off event [2023-11-12 02:19:41,571 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 115#L696-3true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 133#L701-2true, 198#true, 152#L716-1true]) [2023-11-12 02:19:41,571 INFO L294 olderBase$Statistics]: this new event has 45 ancestors and is not cut-off event [2023-11-12 02:19:41,571 INFO L297 olderBase$Statistics]: existing Event has 45 ancestors and is not cut-off event [2023-11-12 02:19:41,571 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is not cut-off event [2023-11-12 02:19:41,571 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is not cut-off event [2023-11-12 02:19:41,591 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 193#true, 59#L696-5true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 133#L701-2true, 198#true, 152#L716-1true]) [2023-11-12 02:19:41,591 INFO L294 olderBase$Statistics]: this new event has 49 ancestors and is cut-off event [2023-11-12 02:19:41,591 INFO L297 olderBase$Statistics]: existing Event has 49 ancestors and is cut-off event [2023-11-12 02:19:41,591 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-11-12 02:19:41,591 INFO L297 olderBase$Statistics]: existing Event has 46 ancestors and is cut-off event [2023-11-12 02:19:41,634 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 21#L696-7true, 133#L701-2true, 198#true, 152#L716-1true]) [2023-11-12 02:19:41,634 INFO L294 olderBase$Statistics]: this new event has 50 ancestors and is cut-off event [2023-11-12 02:19:41,635 INFO L297 olderBase$Statistics]: existing Event has 50 ancestors and is cut-off event [2023-11-12 02:19:41,635 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-12 02:19:41,635 INFO L297 olderBase$Statistics]: existing Event has 47 ancestors and is cut-off event [2023-11-12 02:19:41,673 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([461] L716-4-->L716-1: Formula: (= 0 |v_#race~threads_alive~0_4|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_4|} AuxVars[] AssignedVars[#race~threads_alive~0][30], [Black: 187#true, 193#true, Black: 195#(= |#race~keep_alive~0| |ULTIMATE.start_main_#t~nondet16#1|), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 198#true, 133#L701-2true, 152#L716-1true, 155#L698true]) [2023-11-12 02:19:41,673 INFO L294 olderBase$Statistics]: this new event has 51 ancestors and is cut-off event [2023-11-12 02:19:41,674 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-11-12 02:19:41,674 INFO L297 olderBase$Statistics]: existing Event has 51 ancestors and is cut-off event [2023-11-12 02:19:41,674 INFO L297 olderBase$Statistics]: existing Event has 48 ancestors and is cut-off event [2023-11-12 02:19:41,796 INFO L124 PetriNetUnfolderBase]: 11505/24511 cut-off events. [2023-11-12 02:19:41,796 INFO L125 PetriNetUnfolderBase]: For 5917/7860 co-relation queries the response was YES. [2023-11-12 02:19:41,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50113 conditions, 24511 events. 11505/24511 cut-off events. For 5917/7860 co-relation queries the response was YES. Maximal size of possible extension queue 859. Compared 243997 event pairs, 6261 based on Foata normal form. 575/21585 useless extension candidates. Maximal degree in co-relation 32017. Up to 15685 conditions per place. [2023-11-12 02:19:42,131 INFO L140 encePairwiseOnDemand]: 288/297 looper letters, 65 selfloop transitions, 15 changer transitions 0/139 dead transitions. [2023-11-12 02:19:42,131 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 139 transitions, 578 flow [2023-11-12 02:19:42,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:19:42,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:19:42,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 564 transitions. [2023-11-12 02:19:42,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.632996632996633 [2023-11-12 02:19:42,135 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 564 transitions. [2023-11-12 02:19:42,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 564 transitions. [2023-11-12 02:19:42,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:19:42,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 564 transitions. [2023-11-12 02:19:42,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:42,142 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:42,143 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 297.0) internal successors, (1188), 4 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:42,143 INFO L175 Difference]: Start difference. First operand has 96 places, 109 transitions, 324 flow. Second operand 3 states and 564 transitions. [2023-11-12 02:19:42,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 139 transitions, 578 flow [2023-11-12 02:19:42,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 139 transitions, 573 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-12 02:19:42,155 INFO L231 Difference]: Finished difference. Result has 98 places, 122 transitions, 443 flow [2023-11-12 02:19:42,156 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=297, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=443, PETRI_PLACES=98, PETRI_TRANSITIONS=122} [2023-11-12 02:19:42,158 INFO L281 CegarLoopForPetriNet]: 92 programPoint places, 6 predicate places. [2023-11-12 02:19:42,158 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 122 transitions, 443 flow [2023-11-12 02:19:42,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:42,159 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:42,159 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-12 02:19:42,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:19:42,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-12 02:19:42,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:42,161 INFO L85 PathProgramCache]: Analyzing trace with hash 572228891, now seen corresponding path program 1 times [2023-11-12 02:19:42,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:42,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739203552] [2023-11-12 02:19:42,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:42,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:19:42,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:19:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:19:42,265 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:19:42,266 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:19:42,269 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2023-11-12 02:19:42,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-11-12 02:19:42,269 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-11-12 02:19:42,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-11-12 02:19:42,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-11-12 02:19:42,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-11-12 02:19:42,270 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-11-12 02:19:42,271 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-11-12 02:19:42,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-11-12 02:19:42,272 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-11-12 02:19:42,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-11-12 02:19:42,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-11-12 02:19:42,273 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-11-12 02:19:42,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-11-12 02:19:42,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2023-11-12 02:19:42,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2023-11-12 02:19:42,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-11-12 02:19:42,274 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-11-12 02:19:42,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-11-12 02:19:42,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-11-12 02:19:42,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-11-12 02:19:42,275 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-11-12 02:19:42,276 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-11-12 02:19:42,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-11-12 02:19:42,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:19:42,279 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 02:19:42,279 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:19:42,280 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-12 02:19:42,320 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:19:42,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 239 transitions, 496 flow [2023-11-12 02:19:42,437 INFO L124 PetriNetUnfolderBase]: 27/383 cut-off events. [2023-11-12 02:19:42,437 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-12 02:19:42,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 383 events. 27/383 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 963 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 283. Up to 8 conditions per place. [2023-11-12 02:19:42,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 234 places, 239 transitions, 496 flow [2023-11-12 02:19:42,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 234 places, 239 transitions, 496 flow [2023-11-12 02:19:42,446 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:19:42,446 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 234 places, 239 transitions, 496 flow [2023-11-12 02:19:42,448 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 234 places, 239 transitions, 496 flow [2023-11-12 02:19:42,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 234 places, 239 transitions, 496 flow [2023-11-12 02:19:42,538 INFO L124 PetriNetUnfolderBase]: 27/383 cut-off events. [2023-11-12 02:19:42,539 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-12 02:19:42,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 396 conditions, 383 events. 27/383 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 963 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 283. Up to 8 conditions per place. [2023-11-12 02:19:42,571 INFO L119 LiptonReduction]: Number of co-enabled transitions 30870 [2023-11-12 02:19:45,673 INFO L134 LiptonReduction]: Checked pairs total: 152151 [2023-11-12 02:19:45,673 INFO L136 LiptonReduction]: Total number of compositions: 122 [2023-11-12 02:19:45,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:19:45,678 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;@1e4899c0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:19:45,678 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2023-11-12 02:19:45,681 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:19:45,681 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-11-12 02:19:45,682 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:19:45,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:19:45,682 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:19:45,682 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-12 02:19:45,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:19:45,683 INFO L85 PathProgramCache]: Analyzing trace with hash 38330525, now seen corresponding path program 1 times [2023-11-12 02:19:45,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:19:45,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891955245] [2023-11-12 02:19:45,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:19:45,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:19:45,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:19:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:19:45,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:19:45,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891955245] [2023-11-12 02:19:45,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891955245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:19:45,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:19:45,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:19:45,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753965939] [2023-11-12 02:19:45,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:19:45,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:19:45,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:19:45,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:19:45,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:19:45,859 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 361 [2023-11-12 02:19:45,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 128 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:19:45,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:19:45,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 361 [2023-11-12 02:19:45,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand