./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --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 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 16:30:10,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:30:10,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:30:10,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:30:10,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:30:10,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:30:10,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:30:10,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:30:10,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:30:10,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:30:10,548 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:30:10,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:30:10,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:30:10,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:30:10,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:30:10,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:30:10,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:30:10,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:30:10,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:30:10,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:30:10,559 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:30:10,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:30:10,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:30:10,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:30:10,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:30:10,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:30:10,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:30:10,565 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:30:10,566 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:30:10,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:30:10,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:30:10,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:30:10,567 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:30:10,568 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:30:10,569 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:30:10,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:30:10,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:30:10,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:30:10,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:30:10,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:30:10,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:30:10,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 16:30:10,586 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:30:10,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:30:10,586 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:30:10,586 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:30:10,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:30:10,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:30:10,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:30:10,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:30:10,588 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:30:10,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:30:10,588 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:30:10,588 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:30:10,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:30:10,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:30:10,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:30:10,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:30:10,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:30:10,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:30:10,589 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 16:30:10,589 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:30:10,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:30:10,589 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:30:10,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:30:10,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:30:10,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:30:10,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:30:10,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:30:10,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:30:10,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:30:10,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:30:10,590 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:30:10,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:30:10,590 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:30:10,591 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:30:10,591 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:30:10,591 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:30:10,591 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:30:10,591 INFO L138 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_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e [2022-12-13 16:30:10,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:30:10,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:30:10,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:30:10,814 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:30:10,814 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:30:10,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2022-12-13 16:30:13,432 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:30:13,588 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:30:13,588 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2022-12-13 16:30:13,593 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/data/0e1cdd196/077c949e654c4090ab202bb0fe146758/FLAGc67c4ea4b [2022-12-13 16:30:13,606 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/data/0e1cdd196/077c949e654c4090ab202bb0fe146758 [2022-12-13 16:30:13,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:30:13,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:30:13,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:30:13,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:30:13,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:30:13,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@745c170d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13, skipping insertion in model container [2022-12-13 16:30:13,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:30:13,642 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:30:13,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/sv-benchmarks/c/weaver/chl-word-symm.wvr.c[2848,2861] [2022-12-13 16:30:13,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:30:13,809 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:30:13,832 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/sv-benchmarks/c/weaver/chl-word-symm.wvr.c[2848,2861] [2022-12-13 16:30:13,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:30:13,845 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:30:13,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13 WrapperNode [2022-12-13 16:30:13,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:30:13,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:30:13,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:30:13,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:30:13,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,880 INFO L138 Inliner]: procedures = 24, calls = 35, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 204 [2022-12-13 16:30:13,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:30:13,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:30:13,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:30:13,881 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:30:13,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,907 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:30:13,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:30:13,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:30:13,911 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:30:13,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (1/1) ... [2022-12-13 16:30:13,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:30:13,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:30:13,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:30:13,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:30:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:30:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 16:30:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 16:30:13,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 16:30:13,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 16:30:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:30:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:30:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:30:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 16:30:13,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:30:13,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:30:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:30:13,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:30:13,970 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 16:30:14,058 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:30:14,060 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:30:14,613 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:30:14,625 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:30:14,625 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 16:30:14,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:30:14 BoogieIcfgContainer [2022-12-13 16:30:14,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:30:14,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:30:14,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:30:14,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:30:14,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:30:13" (1/3) ... [2022-12-13 16:30:14,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53739a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:30:14, skipping insertion in model container [2022-12-13 16:30:14,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:30:13" (2/3) ... [2022-12-13 16:30:14,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53739a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:30:14, skipping insertion in model container [2022-12-13 16:30:14,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:30:14" (3/3) ... [2022-12-13 16:30:14,637 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2022-12-13 16:30:14,645 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 16:30:14,655 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:30:14,655 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2022-12-13 16:30:14,655 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:30:14,762 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 16:30:14,802 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 465 places, 484 transitions, 984 flow [2022-12-13 16:30:14,958 INFO L130 PetriNetUnfolder]: 26/482 cut-off events. [2022-12-13 16:30:14,958 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 16:30:14,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 482 events. 26/482 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1066 event pairs, 0 based on Foata normal form. 0/400 useless extension candidates. Maximal degree in co-relation 286. Up to 3 conditions per place. [2022-12-13 16:30:14,967 INFO L82 GeneralOperation]: Start removeDead. Operand has 465 places, 484 transitions, 984 flow [2022-12-13 16:30:14,976 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 444 places, 461 transitions, 934 flow [2022-12-13 16:30:14,980 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:30:14,991 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 444 places, 461 transitions, 934 flow [2022-12-13 16:30:14,993 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 444 places, 461 transitions, 934 flow [2022-12-13 16:30:14,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 444 places, 461 transitions, 934 flow [2022-12-13 16:30:15,062 INFO L130 PetriNetUnfolder]: 24/461 cut-off events. [2022-12-13 16:30:15,063 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 16:30:15,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 461 events. 24/461 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1052 event pairs, 0 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 286. Up to 3 conditions per place. [2022-12-13 16:30:15,073 INFO L119 LiptonReduction]: Number of co-enabled transitions 31968 [2022-12-13 16:30:22,298 INFO L134 LiptonReduction]: Checked pairs total: 235840 [2022-12-13 16:30:22,298 INFO L136 LiptonReduction]: Total number of compositions: 391 [2022-12-13 16:30:22,312 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:30:22,318 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=LoopsAndPotentialCycles, 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;@7f07f58b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:30:22,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 96 error locations. [2022-12-13 16:30:22,320 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 16:30:22,320 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:30:22,320 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:22,320 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 16:30:22,321 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:22,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:22,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1708, now seen corresponding path program 1 times [2022-12-13 16:30:22,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:22,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076443523] [2022-12-13 16:30:22,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:22,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:22,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:22,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:22,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076443523] [2022-12-13 16:30:22,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076443523] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:22,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:22,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 16:30:22,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871132551] [2022-12-13 16:30:22,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:22,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:30:22,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:22,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:30:22,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:30:22,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 875 [2022-12-13 16:30:22,437 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 180 transitions, 372 flow. Second operand has 2 states, 2 states have (on average 468.5) internal successors, (937), 2 states have internal predecessors, (937), 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) [2022-12-13 16:30:22,437 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:22,438 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 875 [2022-12-13 16:30:22,438 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:22,871 INFO L130 PetriNetUnfolder]: 933/3456 cut-off events. [2022-12-13 16:30:22,872 INFO L131 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2022-12-13 16:30:22,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4916 conditions, 3456 events. 933/3456 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 29709 event pairs, 621 based on Foata normal form. 228/2970 useless extension candidates. Maximal degree in co-relation 4624. Up to 1412 conditions per place. [2022-12-13 16:30:22,904 INFO L137 encePairwiseOnDemand]: 851/875 looper letters, 48 selfloop transitions, 0 changer transitions 1/156 dead transitions. [2022-12-13 16:30:22,904 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 422 flow [2022-12-13 16:30:22,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:30:22,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 16:30:22,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1009 transitions. [2022-12-13 16:30:22,923 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5765714285714286 [2022-12-13 16:30:22,924 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1009 transitions. [2022-12-13 16:30:22,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1009 transitions. [2022-12-13 16:30:22,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:22,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1009 transitions. [2022-12-13 16:30:22,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 504.5) internal successors, (1009), 2 states have internal predecessors, (1009), 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) [2022-12-13 16:30:22,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 875.0) internal successors, (2625), 3 states have internal predecessors, (2625), 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) [2022-12-13 16:30:22,952 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 875.0) internal successors, (2625), 3 states have internal predecessors, (2625), 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) [2022-12-13 16:30:22,954 INFO L175 Difference]: Start difference. First operand has 173 places, 180 transitions, 372 flow. Second operand 2 states and 1009 transitions. [2022-12-13 16:30:22,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 422 flow [2022-12-13 16:30:22,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 156 transitions, 414 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 16:30:22,972 INFO L231 Difference]: Finished difference. Result has 148 places, 155 transitions, 313 flow [2022-12-13 16:30:22,973 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=313, PETRI_PLACES=148, PETRI_TRANSITIONS=155} [2022-12-13 16:30:22,976 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -25 predicate places. [2022-12-13 16:30:22,976 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 155 transitions, 313 flow [2022-12-13 16:30:22,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 468.5) internal successors, (937), 2 states have internal predecessors, (937), 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) [2022-12-13 16:30:22,978 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:22,978 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 16:30:22,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:30:22,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:22,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:22,979 INFO L85 PathProgramCache]: Analyzing trace with hash -662315615, now seen corresponding path program 1 times [2022-12-13 16:30:22,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:22,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109433329] [2022-12-13 16:30:22,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:22,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:23,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:23,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:23,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109433329] [2022-12-13 16:30:23,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109433329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:23,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:23,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:30:23,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747141567] [2022-12-13 16:30:23,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:23,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:23,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:23,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:23,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:23,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 875 [2022-12-13 16:30:23,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 155 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 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) [2022-12-13 16:30:23,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:23,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 875 [2022-12-13 16:30:23,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:23,437 INFO L130 PetriNetUnfolder]: 1159/3969 cut-off events. [2022-12-13 16:30:23,437 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2022-12-13 16:30:23,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5756 conditions, 3969 events. 1159/3969 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 33559 event pairs, 449 based on Foata normal form. 0/3243 useless extension candidates. Maximal degree in co-relation 5753. Up to 1756 conditions per place. [2022-12-13 16:30:23,452 INFO L137 encePairwiseOnDemand]: 869/875 looper letters, 56 selfloop transitions, 2 changer transitions 0/157 dead transitions. [2022-12-13 16:30:23,452 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 157 transitions, 434 flow [2022-12-13 16:30:23,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:23,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:30:23,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1427 transitions. [2022-12-13 16:30:23,455 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5436190476190477 [2022-12-13 16:30:23,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1427 transitions. [2022-12-13 16:30:23,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1427 transitions. [2022-12-13 16:30:23,455 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:23,455 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1427 transitions. [2022-12-13 16:30:23,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 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) [2022-12-13 16:30:23,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:23,462 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:23,462 INFO L175 Difference]: Start difference. First operand has 148 places, 155 transitions, 313 flow. Second operand 3 states and 1427 transitions. [2022-12-13 16:30:23,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 157 transitions, 434 flow [2022-12-13 16:30:23,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 157 transitions, 434 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:30:23,465 INFO L231 Difference]: Finished difference. Result has 146 places, 153 transitions, 319 flow [2022-12-13 16:30:23,465 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=305, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=146, PETRI_TRANSITIONS=153} [2022-12-13 16:30:23,466 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -27 predicate places. [2022-12-13 16:30:23,466 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 153 transitions, 319 flow [2022-12-13 16:30:23,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.0) internal successors, (1371), 3 states have internal predecessors, (1371), 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) [2022-12-13 16:30:23,467 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:23,467 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:23,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:30:23,467 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:23,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:23,467 INFO L85 PathProgramCache]: Analyzing trace with hash -830110749, now seen corresponding path program 1 times [2022-12-13 16:30:23,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:23,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971704299] [2022-12-13 16:30:23,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:23,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:23,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:23,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:23,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971704299] [2022-12-13 16:30:23,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971704299] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:23,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:23,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:30:23,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429439519] [2022-12-13 16:30:23,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:23,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:23,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:23,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:23,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:23,533 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 875 [2022-12-13 16:30:23,536 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 153 transitions, 319 flow. Second operand has 3 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 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) [2022-12-13 16:30:23,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:23,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 875 [2022-12-13 16:30:23,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:23,895 INFO L130 PetriNetUnfolder]: 1283/4234 cut-off events. [2022-12-13 16:30:23,895 INFO L131 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-12-13 16:30:23,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6275 conditions, 4234 events. 1283/4234 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 35516 event pairs, 513 based on Foata normal form. 0/3466 useless extension candidates. Maximal degree in co-relation 6271. Up to 1948 conditions per place. [2022-12-13 16:30:23,911 INFO L137 encePairwiseOnDemand]: 869/875 looper letters, 59 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2022-12-13 16:30:23,911 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 155 transitions, 449 flow [2022-12-13 16:30:23,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:23,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:30:23,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1429 transitions. [2022-12-13 16:30:23,914 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5443809523809524 [2022-12-13 16:30:23,915 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1429 transitions. [2022-12-13 16:30:23,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1429 transitions. [2022-12-13 16:30:23,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:23,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1429 transitions. [2022-12-13 16:30:23,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 476.3333333333333) internal successors, (1429), 3 states have internal predecessors, (1429), 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) [2022-12-13 16:30:23,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:23,921 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:23,921 INFO L175 Difference]: Start difference. First operand has 146 places, 153 transitions, 319 flow. Second operand 3 states and 1429 transitions. [2022-12-13 16:30:23,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 155 transitions, 449 flow [2022-12-13 16:30:23,923 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 155 transitions, 449 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:30:23,924 INFO L231 Difference]: Finished difference. Result has 145 places, 151 transitions, 325 flow [2022-12-13 16:30:23,925 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=311, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=325, PETRI_PLACES=145, PETRI_TRANSITIONS=151} [2022-12-13 16:30:23,925 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -28 predicate places. [2022-12-13 16:30:23,925 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 151 transitions, 325 flow [2022-12-13 16:30:23,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 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) [2022-12-13 16:30:23,927 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:23,927 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:23,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:30:23,927 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:23,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:23,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1127912190, now seen corresponding path program 1 times [2022-12-13 16:30:23,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:23,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191058136] [2022-12-13 16:30:23,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:23,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:23,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:23,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:23,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191058136] [2022-12-13 16:30:23,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191058136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:23,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:23,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:30:23,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397176301] [2022-12-13 16:30:23,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:23,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:23,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:23,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:23,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:24,006 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 875 [2022-12-13 16:30:24,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 151 transitions, 325 flow. Second operand has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 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) [2022-12-13 16:30:24,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:24,008 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 875 [2022-12-13 16:30:24,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:24,337 INFO L130 PetriNetUnfolder]: 1203/3898 cut-off events. [2022-12-13 16:30:24,337 INFO L131 PetriNetUnfolder]: For 86/87 co-relation queries the response was YES. [2022-12-13 16:30:24,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5842 conditions, 3898 events. 1203/3898 cut-off events. For 86/87 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 32184 event pairs, 747 based on Foata normal form. 0/3192 useless extension candidates. Maximal degree in co-relation 5837. Up to 1829 conditions per place. [2022-12-13 16:30:24,359 INFO L137 encePairwiseOnDemand]: 870/875 looper letters, 53 selfloop transitions, 1 changer transitions 0/147 dead transitions. [2022-12-13 16:30:24,359 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 147 transitions, 425 flow [2022-12-13 16:30:24,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:24,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:30:24,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1412 transitions. [2022-12-13 16:30:24,363 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5379047619047619 [2022-12-13 16:30:24,363 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1412 transitions. [2022-12-13 16:30:24,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1412 transitions. [2022-12-13 16:30:24,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:24,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1412 transitions. [2022-12-13 16:30:24,368 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.6666666666667) internal successors, (1412), 3 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:30:24,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:24,374 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:24,374 INFO L175 Difference]: Start difference. First operand has 145 places, 151 transitions, 325 flow. Second operand 3 states and 1412 transitions. [2022-12-13 16:30:24,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 147 transitions, 425 flow [2022-12-13 16:30:24,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 147 transitions, 425 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:30:24,378 INFO L231 Difference]: Finished difference. Result has 143 places, 147 transitions, 319 flow [2022-12-13 16:30:24,378 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=319, PETRI_PLACES=143, PETRI_TRANSITIONS=147} [2022-12-13 16:30:24,379 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -30 predicate places. [2022-12-13 16:30:24,379 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 147 transitions, 319 flow [2022-12-13 16:30:24,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.6666666666667) internal successors, (1364), 3 states have internal predecessors, (1364), 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) [2022-12-13 16:30:24,380 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:24,380 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:24,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:30:24,381 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:24,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:24,381 INFO L85 PathProgramCache]: Analyzing trace with hash -824635917, now seen corresponding path program 1 times [2022-12-13 16:30:24,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:24,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127684272] [2022-12-13 16:30:24,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:24,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:24,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:24,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:24,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:24,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127684272] [2022-12-13 16:30:24,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127684272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:24,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:24,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:30:24,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367796013] [2022-12-13 16:30:24,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:24,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:30:24,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:24,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:30:24,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:30:25,191 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 875 [2022-12-13 16:30:25,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 147 transitions, 319 flow. Second operand has 6 states, 6 states have (on average 452.8333333333333) internal successors, (2717), 6 states have internal predecessors, (2717), 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) [2022-12-13 16:30:25,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:25,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 875 [2022-12-13 16:30:25,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:25,845 INFO L130 PetriNetUnfolder]: 3458/5999 cut-off events. [2022-12-13 16:30:25,845 INFO L131 PetriNetUnfolder]: For 182/183 co-relation queries the response was YES. [2022-12-13 16:30:25,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11139 conditions, 5999 events. 3458/5999 cut-off events. For 182/183 co-relation queries the response was YES. Maximal size of possible extension queue 231. Compared 40403 event pairs, 179 based on Foata normal form. 0/4822 useless extension candidates. Maximal degree in co-relation 11133. Up to 1794 conditions per place. [2022-12-13 16:30:25,862 INFO L137 encePairwiseOnDemand]: 870/875 looper letters, 206 selfloop transitions, 4 changer transitions 0/302 dead transitions. [2022-12-13 16:30:25,862 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 302 transitions, 1089 flow [2022-12-13 16:30:25,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:30:25,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:30:25,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2907 transitions. [2022-12-13 16:30:25,866 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5537142857142857 [2022-12-13 16:30:25,866 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2907 transitions. [2022-12-13 16:30:25,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2907 transitions. [2022-12-13 16:30:25,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:25,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2907 transitions. [2022-12-13 16:30:25,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 484.5) internal successors, (2907), 6 states have internal predecessors, (2907), 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) [2022-12-13 16:30:25,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:25,879 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:25,879 INFO L175 Difference]: Start difference. First operand has 143 places, 147 transitions, 319 flow. Second operand 6 states and 2907 transitions. [2022-12-13 16:30:25,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 302 transitions, 1089 flow [2022-12-13 16:30:25,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 302 transitions, 1088 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:30:25,883 INFO L231 Difference]: Finished difference. Result has 146 places, 146 transitions, 324 flow [2022-12-13 16:30:25,883 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=324, PETRI_PLACES=146, PETRI_TRANSITIONS=146} [2022-12-13 16:30:25,884 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -27 predicate places. [2022-12-13 16:30:25,884 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 146 transitions, 324 flow [2022-12-13 16:30:25,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 452.8333333333333) internal successors, (2717), 6 states have internal predecessors, (2717), 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) [2022-12-13 16:30:25,886 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:25,886 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:25,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:30:25,886 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:25,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:25,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2116924042, now seen corresponding path program 1 times [2022-12-13 16:30:25,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:25,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70987576] [2022-12-13 16:30:25,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:25,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:25,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:25,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:25,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70987576] [2022-12-13 16:30:25,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70987576] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:25,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:25,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:30:25,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827715030] [2022-12-13 16:30:25,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:25,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:25,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:25,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:25,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:25,927 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 875 [2022-12-13 16:30:25,929 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 146 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2022-12-13 16:30:25,929 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:25,929 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 875 [2022-12-13 16:30:25,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:26,212 INFO L130 PetriNetUnfolder]: 1139/3647 cut-off events. [2022-12-13 16:30:26,212 INFO L131 PetriNetUnfolder]: For 327/328 co-relation queries the response was YES. [2022-12-13 16:30:26,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5794 conditions, 3647 events. 1139/3647 cut-off events. For 327/328 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 29712 event pairs, 695 based on Foata normal form. 0/3010 useless extension candidates. Maximal degree in co-relation 5788. Up to 1725 conditions per place. [2022-12-13 16:30:26,222 INFO L137 encePairwiseOnDemand]: 870/875 looper letters, 52 selfloop transitions, 1 changer transitions 0/142 dead transitions. [2022-12-13 16:30:26,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 142 transitions, 422 flow [2022-12-13 16:30:26,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:26,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:30:26,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1411 transitions. [2022-12-13 16:30:26,224 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5375238095238095 [2022-12-13 16:30:26,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1411 transitions. [2022-12-13 16:30:26,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1411 transitions. [2022-12-13 16:30:26,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:26,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1411 transitions. [2022-12-13 16:30:26,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 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) [2022-12-13 16:30:26,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:26,230 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:26,230 INFO L175 Difference]: Start difference. First operand has 146 places, 146 transitions, 324 flow. Second operand 3 states and 1411 transitions. [2022-12-13 16:30:26,230 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 142 transitions, 422 flow [2022-12-13 16:30:26,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 142 transitions, 415 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 16:30:26,234 INFO L231 Difference]: Finished difference. Result has 140 places, 142 transitions, 311 flow [2022-12-13 16:30:26,234 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=311, PETRI_PLACES=140, PETRI_TRANSITIONS=142} [2022-12-13 16:30:26,235 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -33 predicate places. [2022-12-13 16:30:26,235 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 142 transitions, 311 flow [2022-12-13 16:30:26,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 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) [2022-12-13 16:30:26,236 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:26,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:26,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:30:26,236 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:26,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:26,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1592342953, now seen corresponding path program 1 times [2022-12-13 16:30:26,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:26,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505383832] [2022-12-13 16:30:26,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:26,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:26,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:26,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:26,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505383832] [2022-12-13 16:30:26,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505383832] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:26,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:26,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:30:26,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857304864] [2022-12-13 16:30:26,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:26,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:26,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:26,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:26,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:26,270 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 875 [2022-12-13 16:30:26,271 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 142 transitions, 311 flow. Second operand has 3 states, 3 states have (on average 462.6666666666667) internal successors, (1388), 3 states have internal predecessors, (1388), 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) [2022-12-13 16:30:26,271 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:26,271 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 875 [2022-12-13 16:30:26,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:26,664 INFO L130 PetriNetUnfolder]: 1031/3593 cut-off events. [2022-12-13 16:30:26,664 INFO L131 PetriNetUnfolder]: For 76/77 co-relation queries the response was YES. [2022-12-13 16:30:26,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5283 conditions, 3593 events. 1031/3593 cut-off events. For 76/77 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 29298 event pairs, 569 based on Foata normal form. 0/2957 useless extension candidates. Maximal degree in co-relation 5277. Up to 1466 conditions per place. [2022-12-13 16:30:26,677 INFO L137 encePairwiseOnDemand]: 872/875 looper letters, 72 selfloop transitions, 2 changer transitions 0/166 dead transitions. [2022-12-13 16:30:26,677 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 166 transitions, 510 flow [2022-12-13 16:30:26,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:26,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:30:26,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1453 transitions. [2022-12-13 16:30:26,683 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5535238095238095 [2022-12-13 16:30:26,683 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1453 transitions. [2022-12-13 16:30:26,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1453 transitions. [2022-12-13 16:30:26,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:26,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1453 transitions. [2022-12-13 16:30:26,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 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) [2022-12-13 16:30:26,696 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:26,697 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:26,698 INFO L175 Difference]: Start difference. First operand has 140 places, 142 transitions, 311 flow. Second operand 3 states and 1453 transitions. [2022-12-13 16:30:26,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 166 transitions, 510 flow [2022-12-13 16:30:26,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 166 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:30:26,701 INFO L231 Difference]: Finished difference. Result has 142 places, 143 transitions, 322 flow [2022-12-13 16:30:26,702 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=142, PETRI_TRANSITIONS=143} [2022-12-13 16:30:26,703 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -31 predicate places. [2022-12-13 16:30:26,703 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 143 transitions, 322 flow [2022-12-13 16:30:26,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 462.6666666666667) internal successors, (1388), 3 states have internal predecessors, (1388), 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) [2022-12-13 16:30:26,704 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:26,704 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:26,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:30:26,704 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:26,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:26,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1450826411, now seen corresponding path program 1 times [2022-12-13 16:30:26,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:26,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759573084] [2022-12-13 16:30:26,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:26,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:26,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:26,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:26,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759573084] [2022-12-13 16:30:26,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759573084] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:26,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:26,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:30:26,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441019350] [2022-12-13 16:30:26,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:26,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:26,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:26,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:26,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:26,741 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 875 [2022-12-13 16:30:26,743 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 143 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 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) [2022-12-13 16:30:26,743 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:26,743 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 875 [2022-12-13 16:30:26,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:27,071 INFO L130 PetriNetUnfolder]: 1085/3618 cut-off events. [2022-12-13 16:30:27,071 INFO L131 PetriNetUnfolder]: For 230/231 co-relation queries the response was YES. [2022-12-13 16:30:27,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5578 conditions, 3618 events. 1085/3618 cut-off events. For 230/231 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 29368 event pairs, 615 based on Foata normal form. 0/3027 useless extension candidates. Maximal degree in co-relation 5571. Up to 1558 conditions per place. [2022-12-13 16:30:27,082 INFO L137 encePairwiseOnDemand]: 872/875 looper letters, 71 selfloop transitions, 2 changer transitions 0/165 dead transitions. [2022-12-13 16:30:27,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 165 transitions, 525 flow [2022-12-13 16:30:27,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:27,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:30:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1450 transitions. [2022-12-13 16:30:27,084 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5523809523809524 [2022-12-13 16:30:27,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1450 transitions. [2022-12-13 16:30:27,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1450 transitions. [2022-12-13 16:30:27,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:27,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1450 transitions. [2022-12-13 16:30:27,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 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) [2022-12-13 16:30:27,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:27,089 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:27,089 INFO L175 Difference]: Start difference. First operand has 142 places, 143 transitions, 322 flow. Second operand 3 states and 1450 transitions. [2022-12-13 16:30:27,089 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 165 transitions, 525 flow [2022-12-13 16:30:27,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 165 transitions, 521 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:30:27,091 INFO L231 Difference]: Finished difference. Result has 144 places, 144 transitions, 332 flow [2022-12-13 16:30:27,092 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=144, PETRI_TRANSITIONS=144} [2022-12-13 16:30:27,092 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -29 predicate places. [2022-12-13 16:30:27,092 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 144 transitions, 332 flow [2022-12-13 16:30:27,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 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) [2022-12-13 16:30:27,093 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:27,093 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:27,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 16:30:27,093 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:27,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:27,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1088655994, now seen corresponding path program 1 times [2022-12-13 16:30:27,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:27,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136386335] [2022-12-13 16:30:27,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:27,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:27,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:27,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136386335] [2022-12-13 16:30:27,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136386335] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:27,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:27,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:30:27,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807108384] [2022-12-13 16:30:27,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:27,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:27,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:27,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:27,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:27,129 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 875 [2022-12-13 16:30:27,130 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 144 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 458.6666666666667) internal successors, (1376), 3 states have internal predecessors, (1376), 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) [2022-12-13 16:30:27,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:27,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 875 [2022-12-13 16:30:27,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:27,533 INFO L130 PetriNetUnfolder]: 1952/5354 cut-off events. [2022-12-13 16:30:27,533 INFO L131 PetriNetUnfolder]: For 530/531 co-relation queries the response was YES. [2022-12-13 16:30:27,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9102 conditions, 5354 events. 1952/5354 cut-off events. For 530/531 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 43680 event pairs, 417 based on Foata normal form. 0/4626 useless extension candidates. Maximal degree in co-relation 9094. Up to 2082 conditions per place. [2022-12-13 16:30:27,553 INFO L137 encePairwiseOnDemand]: 869/875 looper letters, 89 selfloop transitions, 2 changer transitions 0/174 dead transitions. [2022-12-13 16:30:27,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 174 transitions, 598 flow [2022-12-13 16:30:27,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:27,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:30:27,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1454 transitions. [2022-12-13 16:30:27,556 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5539047619047619 [2022-12-13 16:30:27,556 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1454 transitions. [2022-12-13 16:30:27,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1454 transitions. [2022-12-13 16:30:27,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:27,557 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1454 transitions. [2022-12-13 16:30:27,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.6666666666667) internal successors, (1454), 3 states have internal predecessors, (1454), 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) [2022-12-13 16:30:27,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:27,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:27,564 INFO L175 Difference]: Start difference. First operand has 144 places, 144 transitions, 332 flow. Second operand 3 states and 1454 transitions. [2022-12-13 16:30:27,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 174 transitions, 598 flow [2022-12-13 16:30:27,568 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 174 transitions, 594 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:30:27,570 INFO L231 Difference]: Finished difference. Result has 142 places, 142 transitions, 338 flow [2022-12-13 16:30:27,570 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=142, PETRI_TRANSITIONS=142} [2022-12-13 16:30:27,571 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -31 predicate places. [2022-12-13 16:30:27,571 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 142 transitions, 338 flow [2022-12-13 16:30:27,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 458.6666666666667) internal successors, (1376), 3 states have internal predecessors, (1376), 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) [2022-12-13 16:30:27,572 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:27,572 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:27,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 16:30:27,572 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:27,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:27,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1626835581, now seen corresponding path program 1 times [2022-12-13 16:30:27,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:27,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584566051] [2022-12-13 16:30:27,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:27,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:27,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:27,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584566051] [2022-12-13 16:30:27,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584566051] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:27,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:27,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:30:27,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759055469] [2022-12-13 16:30:27,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:27,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:27,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:27,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:27,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:27,619 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 875 [2022-12-13 16:30:27,620 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 142 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 459.0) internal successors, (1377), 3 states have internal predecessors, (1377), 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) [2022-12-13 16:30:27,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:27,621 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 875 [2022-12-13 16:30:27,621 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:28,106 INFO L130 PetriNetUnfolder]: 2043/5365 cut-off events. [2022-12-13 16:30:28,106 INFO L131 PetriNetUnfolder]: For 577/578 co-relation queries the response was YES. [2022-12-13 16:30:28,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9372 conditions, 5365 events. 2043/5365 cut-off events. For 577/578 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 42796 event pairs, 403 based on Foata normal form. 0/4806 useless extension candidates. Maximal degree in co-relation 9364. Up to 2275 conditions per place. [2022-12-13 16:30:28,122 INFO L137 encePairwiseOnDemand]: 869/875 looper letters, 89 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2022-12-13 16:30:28,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 171 transitions, 603 flow [2022-12-13 16:30:28,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:28,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:30:28,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1453 transitions. [2022-12-13 16:30:28,124 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5535238095238095 [2022-12-13 16:30:28,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1453 transitions. [2022-12-13 16:30:28,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1453 transitions. [2022-12-13 16:30:28,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:28,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1453 transitions. [2022-12-13 16:30:28,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.3333333333333) internal successors, (1453), 3 states have internal predecessors, (1453), 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) [2022-12-13 16:30:28,128 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:28,128 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:28,129 INFO L175 Difference]: Start difference. First operand has 142 places, 142 transitions, 338 flow. Second operand 3 states and 1453 transitions. [2022-12-13 16:30:28,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 171 transitions, 603 flow [2022-12-13 16:30:28,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 171 transitions, 603 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:30:28,132 INFO L231 Difference]: Finished difference. Result has 141 places, 140 transitions, 346 flow [2022-12-13 16:30:28,132 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=346, PETRI_PLACES=141, PETRI_TRANSITIONS=140} [2022-12-13 16:30:28,132 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -32 predicate places. [2022-12-13 16:30:28,132 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 140 transitions, 346 flow [2022-12-13 16:30:28,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 459.0) internal successors, (1377), 3 states have internal predecessors, (1377), 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) [2022-12-13 16:30:28,133 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:28,133 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:28,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 16:30:28,133 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:28,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:28,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1182379168, now seen corresponding path program 1 times [2022-12-13 16:30:28,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:28,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391667449] [2022-12-13 16:30:28,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:28,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:28,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:28,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:28,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:28,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391667449] [2022-12-13 16:30:28,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391667449] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:28,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:28,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:30:28,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378224248] [2022-12-13 16:30:28,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:28,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:30:28,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:28,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:30:28,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:30:28,404 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 875 [2022-12-13 16:30:28,406 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 140 transitions, 346 flow. Second operand has 6 states, 6 states have (on average 449.6666666666667) internal successors, (2698), 6 states have internal predecessors, (2698), 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) [2022-12-13 16:30:28,406 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:28,406 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 875 [2022-12-13 16:30:28,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:29,306 INFO L130 PetriNetUnfolder]: 3883/10233 cut-off events. [2022-12-13 16:30:29,306 INFO L131 PetriNetUnfolder]: For 1383/1434 co-relation queries the response was YES. [2022-12-13 16:30:29,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18446 conditions, 10233 events. 3883/10233 cut-off events. For 1383/1434 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 96488 event pairs, 1517 based on Foata normal form. 127/9284 useless extension candidates. Maximal degree in co-relation 18437. Up to 2393 conditions per place. [2022-12-13 16:30:29,339 INFO L137 encePairwiseOnDemand]: 866/875 looper letters, 255 selfloop transitions, 14 changer transitions 0/355 dead transitions. [2022-12-13 16:30:29,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 355 transitions, 1471 flow [2022-12-13 16:30:29,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:30:29,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 16:30:29,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 4728 transitions. [2022-12-13 16:30:29,344 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5403428571428571 [2022-12-13 16:30:29,344 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 4728 transitions. [2022-12-13 16:30:29,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 4728 transitions. [2022-12-13 16:30:29,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:29,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 4728 transitions. [2022-12-13 16:30:29,349 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 472.8) internal successors, (4728), 10 states have internal predecessors, (4728), 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) [2022-12-13 16:30:29,375 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 875.0) internal successors, (9625), 11 states have internal predecessors, (9625), 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) [2022-12-13 16:30:29,376 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 875.0) internal successors, (9625), 11 states have internal predecessors, (9625), 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) [2022-12-13 16:30:29,376 INFO L175 Difference]: Start difference. First operand has 141 places, 140 transitions, 346 flow. Second operand 10 states and 4728 transitions. [2022-12-13 16:30:29,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 355 transitions, 1471 flow [2022-12-13 16:30:29,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 355 transitions, 1471 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:30:29,391 INFO L231 Difference]: Finished difference. Result has 154 places, 151 transitions, 431 flow [2022-12-13 16:30:29,392 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=346, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=431, PETRI_PLACES=154, PETRI_TRANSITIONS=151} [2022-12-13 16:30:29,392 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -19 predicate places. [2022-12-13 16:30:29,392 INFO L495 AbstractCegarLoop]: Abstraction has has 154 places, 151 transitions, 431 flow [2022-12-13 16:30:29,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 449.6666666666667) internal successors, (2698), 6 states have internal predecessors, (2698), 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) [2022-12-13 16:30:29,393 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:29,393 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:29,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 16:30:29,393 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:29,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:29,394 INFO L85 PathProgramCache]: Analyzing trace with hash 1488499934, now seen corresponding path program 1 times [2022-12-13 16:30:29,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:29,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743239061] [2022-12-13 16:30:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:29,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:29,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:29,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:29,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743239061] [2022-12-13 16:30:29,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743239061] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:29,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:29,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:30:29,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948955552] [2022-12-13 16:30:29,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:29,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:30:29,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:29,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:30:29,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:30:29,682 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 875 [2022-12-13 16:30:29,683 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 151 transitions, 431 flow. Second operand has 6 states, 6 states have (on average 450.0) internal successors, (2700), 6 states have internal predecessors, (2700), 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) [2022-12-13 16:30:29,683 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:29,683 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 875 [2022-12-13 16:30:29,683 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:30,413 INFO L130 PetriNetUnfolder]: 2577/7001 cut-off events. [2022-12-13 16:30:30,413 INFO L131 PetriNetUnfolder]: For 1975/2004 co-relation queries the response was YES. [2022-12-13 16:30:30,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13175 conditions, 7001 events. 2577/7001 cut-off events. For 1975/2004 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 60618 event pairs, 1284 based on Foata normal form. 53/6332 useless extension candidates. Maximal degree in co-relation 13161. Up to 2558 conditions per place. [2022-12-13 16:30:30,436 INFO L137 encePairwiseOnDemand]: 866/875 looper letters, 152 selfloop transitions, 14 changer transitions 6/258 dead transitions. [2022-12-13 16:30:30,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 258 transitions, 1103 flow [2022-12-13 16:30:30,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:30:30,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 16:30:30,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4194 transitions. [2022-12-13 16:30:30,441 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5325714285714286 [2022-12-13 16:30:30,441 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4194 transitions. [2022-12-13 16:30:30,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4194 transitions. [2022-12-13 16:30:30,442 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:30,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4194 transitions. [2022-12-13 16:30:30,445 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 466.0) internal successors, (4194), 9 states have internal predecessors, (4194), 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) [2022-12-13 16:30:30,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 875.0) internal successors, (8750), 10 states have internal predecessors, (8750), 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) [2022-12-13 16:30:30,451 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 875.0) internal successors, (8750), 10 states have internal predecessors, (8750), 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) [2022-12-13 16:30:30,451 INFO L175 Difference]: Start difference. First operand has 154 places, 151 transitions, 431 flow. Second operand 9 states and 4194 transitions. [2022-12-13 16:30:30,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 258 transitions, 1103 flow [2022-12-13 16:30:30,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 258 transitions, 1101 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-12-13 16:30:30,459 INFO L231 Difference]: Finished difference. Result has 164 places, 159 transitions, 501 flow [2022-12-13 16:30:30,459 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=501, PETRI_PLACES=164, PETRI_TRANSITIONS=159} [2022-12-13 16:30:30,460 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -9 predicate places. [2022-12-13 16:30:30,460 INFO L495 AbstractCegarLoop]: Abstraction has has 164 places, 159 transitions, 501 flow [2022-12-13 16:30:30,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 450.0) internal successors, (2700), 6 states have internal predecessors, (2700), 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) [2022-12-13 16:30:30,460 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:30,460 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:30,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 16:30:30,460 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:30,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:30,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1673224626, now seen corresponding path program 1 times [2022-12-13 16:30:30,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:30,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338181805] [2022-12-13 16:30:30,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:30,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:30,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 16:30:30,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:30,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338181805] [2022-12-13 16:30:30,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338181805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:30,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:30,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 16:30:30,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941248466] [2022-12-13 16:30:30,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:30,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:30:30,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:30,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:30:30,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:30:30,784 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 448 out of 875 [2022-12-13 16:30:30,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 159 transitions, 501 flow. Second operand has 6 states, 6 states have (on average 449.8333333333333) internal successors, (2699), 6 states have internal predecessors, (2699), 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) [2022-12-13 16:30:30,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:30,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 448 of 875 [2022-12-13 16:30:30,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:31,843 INFO L130 PetriNetUnfolder]: 3832/10018 cut-off events. [2022-12-13 16:30:31,843 INFO L131 PetriNetUnfolder]: For 3911/3941 co-relation queries the response was YES. [2022-12-13 16:30:31,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20123 conditions, 10018 events. 3832/10018 cut-off events. For 3911/3941 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 92765 event pairs, 1609 based on Foata normal form. 66/9151 useless extension candidates. Maximal degree in co-relation 20106. Up to 3018 conditions per place. [2022-12-13 16:30:31,880 INFO L137 encePairwiseOnDemand]: 867/875 looper letters, 193 selfloop transitions, 17 changer transitions 0/296 dead transitions. [2022-12-13 16:30:31,881 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 296 transitions, 1414 flow [2022-12-13 16:30:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 16:30:31,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 16:30:31,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3297 transitions. [2022-12-13 16:30:31,884 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5382857142857143 [2022-12-13 16:30:31,884 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3297 transitions. [2022-12-13 16:30:31,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3297 transitions. [2022-12-13 16:30:31,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:31,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3297 transitions. [2022-12-13 16:30:31,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 471.0) internal successors, (3297), 7 states have internal predecessors, (3297), 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) [2022-12-13 16:30:31,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 875.0) internal successors, (7000), 8 states have internal predecessors, (7000), 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) [2022-12-13 16:30:31,892 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 875.0) internal successors, (7000), 8 states have internal predecessors, (7000), 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) [2022-12-13 16:30:31,892 INFO L175 Difference]: Start difference. First operand has 164 places, 159 transitions, 501 flow. Second operand 7 states and 3297 transitions. [2022-12-13 16:30:31,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 296 transitions, 1414 flow [2022-12-13 16:30:31,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 296 transitions, 1391 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-12-13 16:30:31,917 INFO L231 Difference]: Finished difference. Result has 170 places, 166 transitions, 580 flow [2022-12-13 16:30:31,918 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=580, PETRI_PLACES=170, PETRI_TRANSITIONS=166} [2022-12-13 16:30:31,918 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -3 predicate places. [2022-12-13 16:30:31,918 INFO L495 AbstractCegarLoop]: Abstraction has has 170 places, 166 transitions, 580 flow [2022-12-13 16:30:31,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 449.8333333333333) internal successors, (2699), 6 states have internal predecessors, (2699), 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) [2022-12-13 16:30:31,919 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:31,919 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:31,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 16:30:31,919 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:31,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:31,919 INFO L85 PathProgramCache]: Analyzing trace with hash -475160052, now seen corresponding path program 1 times [2022-12-13 16:30:31,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:31,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813581993] [2022-12-13 16:30:31,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:31,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:31,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 16:30:31,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:31,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813581993] [2022-12-13 16:30:31,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813581993] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:31,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:31,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:30:31,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401063289] [2022-12-13 16:30:31,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:31,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:30:31,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:31,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:30:31,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:30:32,127 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 875 [2022-12-13 16:30:32,128 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 166 transitions, 580 flow. Second operand has 5 states, 5 states have (on average 458.6) internal successors, (2293), 5 states have internal predecessors, (2293), 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) [2022-12-13 16:30:32,128 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:32,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 875 [2022-12-13 16:30:32,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:32,890 INFO L130 PetriNetUnfolder]: 2841/7844 cut-off events. [2022-12-13 16:30:32,890 INFO L131 PetriNetUnfolder]: For 4057/4095 co-relation queries the response was YES. [2022-12-13 16:30:32,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15871 conditions, 7844 events. 2841/7844 cut-off events. For 4057/4095 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 69876 event pairs, 1577 based on Foata normal form. 54/7168 useless extension candidates. Maximal degree in co-relation 15851. Up to 3244 conditions per place. [2022-12-13 16:30:32,938 INFO L137 encePairwiseOnDemand]: 870/875 looper letters, 115 selfloop transitions, 7 changer transitions 0/208 dead transitions. [2022-12-13 16:30:32,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 208 transitions, 981 flow [2022-12-13 16:30:32,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 16:30:32,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 16:30:32,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2373 transitions. [2022-12-13 16:30:32,943 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5424 [2022-12-13 16:30:32,943 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2373 transitions. [2022-12-13 16:30:32,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2373 transitions. [2022-12-13 16:30:32,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:32,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2373 transitions. [2022-12-13 16:30:32,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 474.6) internal successors, (2373), 5 states have internal predecessors, (2373), 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) [2022-12-13 16:30:32,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 875.0) internal successors, (5250), 6 states have internal predecessors, (5250), 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) [2022-12-13 16:30:32,952 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 875.0) internal successors, (5250), 6 states have internal predecessors, (5250), 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) [2022-12-13 16:30:32,952 INFO L175 Difference]: Start difference. First operand has 170 places, 166 transitions, 580 flow. Second operand 5 states and 2373 transitions. [2022-12-13 16:30:32,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 208 transitions, 981 flow [2022-12-13 16:30:32,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 208 transitions, 973 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 16:30:32,981 INFO L231 Difference]: Finished difference. Result has 175 places, 165 transitions, 587 flow [2022-12-13 16:30:32,982 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=560, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=587, PETRI_PLACES=175, PETRI_TRANSITIONS=165} [2022-12-13 16:30:32,982 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, 2 predicate places. [2022-12-13 16:30:32,982 INFO L495 AbstractCegarLoop]: Abstraction has has 175 places, 165 transitions, 587 flow [2022-12-13 16:30:32,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 458.6) internal successors, (2293), 5 states have internal predecessors, (2293), 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) [2022-12-13 16:30:32,983 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:32,983 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:32,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 16:30:32,983 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:32,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:32,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1493321069, now seen corresponding path program 1 times [2022-12-13 16:30:32,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:32,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527473510] [2022-12-13 16:30:32,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:32,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 16:30:33,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:33,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527473510] [2022-12-13 16:30:33,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527473510] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:33,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:33,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:30:33,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246451380] [2022-12-13 16:30:33,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:33,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:30:33,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:33,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:30:33,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:30:33,692 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 875 [2022-12-13 16:30:33,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 165 transitions, 587 flow. Second operand has 6 states, 6 states have (on average 446.8333333333333) internal successors, (2681), 6 states have internal predecessors, (2681), 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) [2022-12-13 16:30:33,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:33,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 875 [2022-12-13 16:30:33,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:34,681 INFO L130 PetriNetUnfolder]: 3874/9291 cut-off events. [2022-12-13 16:30:34,682 INFO L131 PetriNetUnfolder]: For 5112/5134 co-relation queries the response was YES. [2022-12-13 16:30:34,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19669 conditions, 9291 events. 3874/9291 cut-off events. For 5112/5134 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 78528 event pairs, 1699 based on Foata normal form. 0/8545 useless extension candidates. Maximal degree in co-relation 19647. Up to 4231 conditions per place. [2022-12-13 16:30:34,746 INFO L137 encePairwiseOnDemand]: 868/875 looper letters, 189 selfloop transitions, 5 changer transitions 0/268 dead transitions. [2022-12-13 16:30:34,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 268 transitions, 1318 flow [2022-12-13 16:30:34,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:30:34,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:30:34,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2821 transitions. [2022-12-13 16:30:34,749 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5373333333333333 [2022-12-13 16:30:34,750 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2821 transitions. [2022-12-13 16:30:34,750 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2821 transitions. [2022-12-13 16:30:34,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:34,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2821 transitions. [2022-12-13 16:30:34,753 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 470.1666666666667) internal successors, (2821), 6 states have internal predecessors, (2821), 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) [2022-12-13 16:30:34,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:34,756 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:34,756 INFO L175 Difference]: Start difference. First operand has 175 places, 165 transitions, 587 flow. Second operand 6 states and 2821 transitions. [2022-12-13 16:30:34,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 268 transitions, 1318 flow [2022-12-13 16:30:34,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 268 transitions, 1309 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 16:30:34,772 INFO L231 Difference]: Finished difference. Result has 176 places, 163 transitions, 584 flow [2022-12-13 16:30:34,772 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=584, PETRI_PLACES=176, PETRI_TRANSITIONS=163} [2022-12-13 16:30:34,772 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, 3 predicate places. [2022-12-13 16:30:34,772 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 163 transitions, 584 flow [2022-12-13 16:30:34,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 446.8333333333333) internal successors, (2681), 6 states have internal predecessors, (2681), 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) [2022-12-13 16:30:34,773 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:34,773 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:34,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 16:30:34,773 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:34,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:34,773 INFO L85 PathProgramCache]: Analyzing trace with hash 146171211, now seen corresponding path program 1 times [2022-12-13 16:30:34,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:34,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152672502] [2022-12-13 16:30:34,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:34,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:34,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 16:30:34,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:34,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152672502] [2022-12-13 16:30:34,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152672502] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:34,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:34,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:30:34,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946655482] [2022-12-13 16:30:34,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:34,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:30:34,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:34,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:30:34,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:30:35,411 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 875 [2022-12-13 16:30:35,412 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 163 transitions, 584 flow. Second operand has 6 states, 6 states have (on average 447.0) internal successors, (2682), 6 states have internal predecessors, (2682), 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) [2022-12-13 16:30:35,412 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:35,413 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 875 [2022-12-13 16:30:35,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:36,358 INFO L130 PetriNetUnfolder]: 4042/9352 cut-off events. [2022-12-13 16:30:36,358 INFO L131 PetriNetUnfolder]: For 5462/5484 co-relation queries the response was YES. [2022-12-13 16:30:36,379 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20286 conditions, 9352 events. 4042/9352 cut-off events. For 5462/5484 co-relation queries the response was YES. Maximal size of possible extension queue 289. Compared 76756 event pairs, 1635 based on Foata normal form. 0/8664 useless extension candidates. Maximal degree in co-relation 20264. Up to 4126 conditions per place. [2022-12-13 16:30:36,420 INFO L137 encePairwiseOnDemand]: 868/875 looper letters, 174 selfloop transitions, 5 changer transitions 0/252 dead transitions. [2022-12-13 16:30:36,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 252 transitions, 1280 flow [2022-12-13 16:30:36,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:30:36,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:30:36,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2806 transitions. [2022-12-13 16:30:36,423 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5344761904761904 [2022-12-13 16:30:36,423 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2806 transitions. [2022-12-13 16:30:36,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2806 transitions. [2022-12-13 16:30:36,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:36,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2806 transitions. [2022-12-13 16:30:36,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 467.6666666666667) internal successors, (2806), 6 states have internal predecessors, (2806), 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) [2022-12-13 16:30:36,428 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:36,428 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:36,429 INFO L175 Difference]: Start difference. First operand has 176 places, 163 transitions, 584 flow. Second operand 6 states and 2806 transitions. [2022-12-13 16:30:36,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 252 transitions, 1280 flow [2022-12-13 16:30:36,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 252 transitions, 1262 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 16:30:36,446 INFO L231 Difference]: Finished difference. Result has 174 places, 161 transitions, 580 flow [2022-12-13 16:30:36,446 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=580, PETRI_PLACES=174, PETRI_TRANSITIONS=161} [2022-12-13 16:30:36,446 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, 1 predicate places. [2022-12-13 16:30:36,446 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 161 transitions, 580 flow [2022-12-13 16:30:36,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 447.0) internal successors, (2682), 6 states have internal predecessors, (2682), 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) [2022-12-13 16:30:36,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:36,447 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:36,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 16:30:36,447 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:36,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:36,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1670090872, now seen corresponding path program 1 times [2022-12-13 16:30:36,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:36,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559267438] [2022-12-13 16:30:36,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:36,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:36,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:36,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:36,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:36,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559267438] [2022-12-13 16:30:36,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559267438] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:36,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:36,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:30:36,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171720141] [2022-12-13 16:30:36,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:36,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:30:36,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:36,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:30:36,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:30:36,508 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 465 out of 875 [2022-12-13 16:30:36,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 161 transitions, 580 flow. Second operand has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 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) [2022-12-13 16:30:36,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:36,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 465 of 875 [2022-12-13 16:30:36,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:37,351 INFO L130 PetriNetUnfolder]: 3030/8124 cut-off events. [2022-12-13 16:30:37,351 INFO L131 PetriNetUnfolder]: For 4553/4579 co-relation queries the response was YES. [2022-12-13 16:30:37,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16945 conditions, 8124 events. 3030/8124 cut-off events. For 4553/4579 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 69925 event pairs, 1332 based on Foata normal form. 0/7622 useless extension candidates. Maximal degree in co-relation 16923. Up to 4186 conditions per place. [2022-12-13 16:30:37,385 INFO L137 encePairwiseOnDemand]: 872/875 looper letters, 115 selfloop transitions, 3 changer transitions 0/200 dead transitions. [2022-12-13 16:30:37,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 200 transitions, 976 flow [2022-12-13 16:30:37,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:30:37,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:30:37,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1471 transitions. [2022-12-13 16:30:37,388 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5603809523809524 [2022-12-13 16:30:37,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1471 transitions. [2022-12-13 16:30:37,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1471 transitions. [2022-12-13 16:30:37,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:37,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1471 transitions. [2022-12-13 16:30:37,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 490.3333333333333) internal successors, (1471), 3 states have internal predecessors, (1471), 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) [2022-12-13 16:30:37,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:37,392 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 875.0) internal successors, (3500), 4 states have internal predecessors, (3500), 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) [2022-12-13 16:30:37,393 INFO L175 Difference]: Start difference. First operand has 174 places, 161 transitions, 580 flow. Second operand 3 states and 1471 transitions. [2022-12-13 16:30:37,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 200 transitions, 976 flow [2022-12-13 16:30:37,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 200 transitions, 962 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 16:30:37,408 INFO L231 Difference]: Finished difference. Result has 172 places, 161 transitions, 581 flow [2022-12-13 16:30:37,408 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=570, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=581, PETRI_PLACES=172, PETRI_TRANSITIONS=161} [2022-12-13 16:30:37,409 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -1 predicate places. [2022-12-13 16:30:37,409 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 161 transitions, 581 flow [2022-12-13 16:30:37,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 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) [2022-12-13 16:30:37,409 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:37,409 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:37,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 16:30:37,409 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:37,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:37,410 INFO L85 PathProgramCache]: Analyzing trace with hash 261620404, now seen corresponding path program 1 times [2022-12-13 16:30:37,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:37,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027789130] [2022-12-13 16:30:37,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:37,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:37,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:37,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:30:37,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:37,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027789130] [2022-12-13 16:30:37,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027789130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:37,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:37,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:30:37,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148430020] [2022-12-13 16:30:37,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:37,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:30:37,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:37,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:30:37,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:30:37,994 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 451 out of 875 [2022-12-13 16:30:37,996 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 161 transitions, 581 flow. Second operand has 6 states, 6 states have (on average 453.6666666666667) internal successors, (2722), 6 states have internal predecessors, (2722), 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) [2022-12-13 16:30:37,996 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:37,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 451 of 875 [2022-12-13 16:30:37,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:38,830 INFO L130 PetriNetUnfolder]: 3387/8530 cut-off events. [2022-12-13 16:30:38,830 INFO L131 PetriNetUnfolder]: For 5737/5745 co-relation queries the response was YES. [2022-12-13 16:30:38,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18554 conditions, 8530 events. 3387/8530 cut-off events. For 5737/5745 co-relation queries the response was YES. Maximal size of possible extension queue 248. Compared 73165 event pairs, 2033 based on Foata normal form. 0/8062 useless extension candidates. Maximal degree in co-relation 18531. Up to 4519 conditions per place. [2022-12-13 16:30:38,859 INFO L137 encePairwiseOnDemand]: 870/875 looper letters, 108 selfloop transitions, 4 changer transitions 95/284 dead transitions. [2022-12-13 16:30:38,860 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 284 transitions, 1533 flow [2022-12-13 16:30:38,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:30:38,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:30:38,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2839 transitions. [2022-12-13 16:30:38,862 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5407619047619048 [2022-12-13 16:30:38,863 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2839 transitions. [2022-12-13 16:30:38,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2839 transitions. [2022-12-13 16:30:38,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:38,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2839 transitions. [2022-12-13 16:30:38,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 473.1666666666667) internal successors, (2839), 6 states have internal predecessors, (2839), 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) [2022-12-13 16:30:38,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:38,868 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:38,868 INFO L175 Difference]: Start difference. First operand has 172 places, 161 transitions, 581 flow. Second operand 6 states and 2839 transitions. [2022-12-13 16:30:38,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 284 transitions, 1533 flow [2022-12-13 16:30:38,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 284 transitions, 1527 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 16:30:38,881 INFO L231 Difference]: Finished difference. Result has 174 places, 137 transitions, 411 flow [2022-12-13 16:30:38,881 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=573, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=411, PETRI_PLACES=174, PETRI_TRANSITIONS=137} [2022-12-13 16:30:38,882 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, 1 predicate places. [2022-12-13 16:30:38,882 INFO L495 AbstractCegarLoop]: Abstraction has has 174 places, 137 transitions, 411 flow [2022-12-13 16:30:38,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 453.6666666666667) internal successors, (2722), 6 states have internal predecessors, (2722), 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) [2022-12-13 16:30:38,882 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:38,882 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:38,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 16:30:38,882 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:38,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:38,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1608624825, now seen corresponding path program 1 times [2022-12-13 16:30:38,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:38,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594933460] [2022-12-13 16:30:38,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:38,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:39,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 16:30:39,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:39,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594933460] [2022-12-13 16:30:39,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594933460] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:39,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:39,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:30:39,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451630129] [2022-12-13 16:30:39,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:39,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:30:39,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:39,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:30:39,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:30:39,604 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 875 [2022-12-13 16:30:39,606 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 137 transitions, 411 flow. Second operand has 6 states, 6 states have (on average 446.8333333333333) internal successors, (2681), 6 states have internal predecessors, (2681), 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) [2022-12-13 16:30:39,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:39,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 875 [2022-12-13 16:30:39,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:40,353 INFO L130 PetriNetUnfolder]: 2327/5619 cut-off events. [2022-12-13 16:30:40,353 INFO L131 PetriNetUnfolder]: For 2682/2692 co-relation queries the response was YES. [2022-12-13 16:30:40,366 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11798 conditions, 5619 events. 2327/5619 cut-off events. For 2682/2692 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 42557 event pairs, 965 based on Foata normal form. 2/5367 useless extension candidates. Maximal degree in co-relation 11775. Up to 2238 conditions per place. [2022-12-13 16:30:40,373 INFO L137 encePairwiseOnDemand]: 868/875 looper letters, 123 selfloop transitions, 5 changer transitions 36/235 dead transitions. [2022-12-13 16:30:40,373 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 235 transitions, 1046 flow [2022-12-13 16:30:40,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:30:40,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:30:40,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2818 transitions. [2022-12-13 16:30:40,381 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5367619047619048 [2022-12-13 16:30:40,381 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2818 transitions. [2022-12-13 16:30:40,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2818 transitions. [2022-12-13 16:30:40,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:40,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2818 transitions. [2022-12-13 16:30:40,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 469.6666666666667) internal successors, (2818), 6 states have internal predecessors, (2818), 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) [2022-12-13 16:30:40,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:40,390 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:40,391 INFO L175 Difference]: Start difference. First operand has 174 places, 137 transitions, 411 flow. Second operand 6 states and 2818 transitions. [2022-12-13 16:30:40,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 235 transitions, 1046 flow [2022-12-13 16:30:40,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 235 transitions, 935 flow, removed 45 selfloop flow, removed 15 redundant places. [2022-12-13 16:30:40,402 INFO L231 Difference]: Finished difference. Result has 145 places, 135 transitions, 364 flow [2022-12-13 16:30:40,402 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=364, PETRI_PLACES=145, PETRI_TRANSITIONS=135} [2022-12-13 16:30:40,402 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -28 predicate places. [2022-12-13 16:30:40,403 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 135 transitions, 364 flow [2022-12-13 16:30:40,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 446.8333333333333) internal successors, (2681), 6 states have internal predecessors, (2681), 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) [2022-12-13 16:30:40,403 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:30:40,403 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:40,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 16:30:40,403 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err16ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE (and 92 more)] === [2022-12-13 16:30:40,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:30:40,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1410382455, now seen corresponding path program 1 times [2022-12-13 16:30:40,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:30:40,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216676302] [2022-12-13 16:30:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:30:40,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:30:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:30:40,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 16:30:40,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:30:40,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216676302] [2022-12-13 16:30:40,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216676302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:30:40,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:30:40,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:30:40,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694400408] [2022-12-13 16:30:40,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:30:40,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:30:40,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:30:40,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:30:40,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:30:41,073 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 444 out of 875 [2022-12-13 16:30:41,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 135 transitions, 364 flow. Second operand has 6 states, 6 states have (on average 447.3333333333333) internal successors, (2684), 6 states have internal predecessors, (2684), 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) [2022-12-13 16:30:41,075 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:30:41,075 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 444 of 875 [2022-12-13 16:30:41,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:30:41,739 INFO L130 PetriNetUnfolder]: 2473/5852 cut-off events. [2022-12-13 16:30:41,739 INFO L131 PetriNetUnfolder]: For 1051/1061 co-relation queries the response was YES. [2022-12-13 16:30:41,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11188 conditions, 5852 events. 2473/5852 cut-off events. For 1051/1061 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 43423 event pairs, 1040 based on Foata normal form. 2/5547 useless extension candidates. Maximal degree in co-relation 11175. Up to 2415 conditions per place. [2022-12-13 16:30:41,752 INFO L137 encePairwiseOnDemand]: 868/875 looper letters, 0 selfloop transitions, 0 changer transitions 220/220 dead transitions. [2022-12-13 16:30:41,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 220 transitions, 910 flow [2022-12-13 16:30:41,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:30:41,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:30:41,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2804 transitions. [2022-12-13 16:30:41,755 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5340952380952381 [2022-12-13 16:30:41,755 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2804 transitions. [2022-12-13 16:30:41,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2804 transitions. [2022-12-13 16:30:41,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:30:41,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2804 transitions. [2022-12-13 16:30:41,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 467.3333333333333) internal successors, (2804), 6 states have internal predecessors, (2804), 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) [2022-12-13 16:30:41,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:41,760 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 875.0) internal successors, (6125), 7 states have internal predecessors, (6125), 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) [2022-12-13 16:30:41,760 INFO L175 Difference]: Start difference. First operand has 145 places, 135 transitions, 364 flow. Second operand 6 states and 2804 transitions. [2022-12-13 16:30:41,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 220 transitions, 910 flow [2022-12-13 16:30:41,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 220 transitions, 892 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 16:30:41,763 INFO L231 Difference]: Finished difference. Result has 143 places, 0 transitions, 0 flow [2022-12-13 16:30:41,763 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=875, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=143, PETRI_TRANSITIONS=0} [2022-12-13 16:30:41,764 INFO L288 CegarLoopForPetriNet]: 173 programPoint places, -30 predicate places. [2022-12-13 16:30:41,764 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 0 transitions, 0 flow [2022-12-13 16:30:41,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 447.3333333333333) internal successors, (2684), 6 states have internal predecessors, (2684), 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) [2022-12-13 16:30:41,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (95 of 96 remaining) [2022-12-13 16:30:41,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (94 of 96 remaining) [2022-12-13 16:30:41,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (93 of 96 remaining) [2022-12-13 16:30:41,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (92 of 96 remaining) [2022-12-13 16:30:41,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (91 of 96 remaining) [2022-12-13 16:30:41,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (90 of 96 remaining) [2022-12-13 16:30:41,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (89 of 96 remaining) [2022-12-13 16:30:41,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (88 of 96 remaining) [2022-12-13 16:30:41,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (87 of 96 remaining) [2022-12-13 16:30:41,766 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (86 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (85 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (84 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (83 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (82 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (81 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (80 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (79 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (78 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (77 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (76 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (75 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (74 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (73 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (72 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (71 of 96 remaining) [2022-12-13 16:30:41,767 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (70 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (69 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (68 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (67 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (66 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (65 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (64 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (63 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (62 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (61 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (60 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (59 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (58 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (57 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (56 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (55 of 96 remaining) [2022-12-13 16:30:41,768 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (54 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (53 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (52 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (51 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (50 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (49 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (48 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (47 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (46 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (45 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (44 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (43 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (42 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (41 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (40 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 96 remaining) [2022-12-13 16:30:41,769 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (35 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (34 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (33 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (32 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (31 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (30 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (29 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (28 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (27 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (26 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (25 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (24 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (23 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (22 of 96 remaining) [2022-12-13 16:30:41,770 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (21 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (20 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (19 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (18 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (17 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (16 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (14 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (13 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (12 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (11 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (10 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (8 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (6 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (5 of 96 remaining) [2022-12-13 16:30:41,771 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (4 of 96 remaining) [2022-12-13 16:30:41,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (3 of 96 remaining) [2022-12-13 16:30:41,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (2 of 96 remaining) [2022-12-13 16:30:41,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (1 of 96 remaining) [2022-12-13 16:30:41,772 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (0 of 96 remaining) [2022-12-13 16:30:41,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 16:30:41,772 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:30:41,776 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:30:41,776 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:30:41,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:30:41 BasicIcfg [2022-12-13 16:30:41,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:30:41,779 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:30:41,779 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:30:41,779 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:30:41,780 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:30:14" (3/4) ... [2022-12-13 16:30:41,782 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 16:30:41,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 16:30:41,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 16:30:41,794 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-12-13 16:30:41,795 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 16:30:41,796 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 16:30:41,796 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 16:30:41,837 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:30:41,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:30:41,838 INFO L158 Benchmark]: Toolchain (without parser) took 28228.22ms. Allocated memory was 134.2MB in the beginning and 1.0GB in the end (delta: 897.6MB). Free memory was 92.3MB in the beginning and 237.6MB in the end (delta: -145.2MB). Peak memory consumption was 755.2MB. Max. memory is 16.1GB. [2022-12-13 16:30:41,838 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:30:41,838 INFO L158 Benchmark]: CACSL2BoogieTranslator took 235.29ms. Allocated memory is still 134.2MB. Free memory was 92.1MB in the beginning and 79.0MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 16:30:41,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.40ms. Allocated memory is still 134.2MB. Free memory was 79.0MB in the beginning and 76.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:30:41,839 INFO L158 Benchmark]: Boogie Preprocessor took 30.31ms. Allocated memory is still 134.2MB. Free memory was 76.5MB in the beginning and 73.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:30:41,839 INFO L158 Benchmark]: RCFGBuilder took 716.66ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 73.5MB in the beginning and 120.7MB in the end (delta: -47.2MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2022-12-13 16:30:41,840 INFO L158 Benchmark]: TraceAbstraction took 27148.13ms. Allocated memory was 161.5MB in the beginning and 1.0GB in the end (delta: 870.3MB). Free memory was 120.7MB in the beginning and 242.8MB in the end (delta: -122.1MB). Peak memory consumption was 749.9MB. Max. memory is 16.1GB. [2022-12-13 16:30:41,840 INFO L158 Benchmark]: Witness Printer took 58.02ms. Allocated memory is still 1.0GB. Free memory was 242.8MB in the beginning and 237.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 16:30:41,842 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 134.2MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 235.29ms. Allocated memory is still 134.2MB. Free memory was 92.1MB in the beginning and 79.0MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.40ms. Allocated memory is still 134.2MB. Free memory was 79.0MB in the beginning and 76.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.31ms. Allocated memory is still 134.2MB. Free memory was 76.5MB in the beginning and 73.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 716.66ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 73.5MB in the beginning and 120.7MB in the end (delta: -47.2MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * TraceAbstraction took 27148.13ms. Allocated memory was 161.5MB in the beginning and 1.0GB in the end (delta: 870.3MB). Free memory was 120.7MB in the beginning and 242.8MB in the end (delta: -122.1MB). Peak memory consumption was 749.9MB. Max. memory is 16.1GB. * Witness Printer took 58.02ms. Allocated memory is still 1.0GB. Free memory was 242.8MB in the beginning and 237.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3s, 444 PlacesBefore, 173 PlacesAfterwards, 461 TransitionsBefore, 180 TransitionsAfterwards, 31968 CoEnabledTransitionPairs, 8 FixpointIterations, 231 TrivialSequentialCompositions, 108 ConcurrentSequentialCompositions, 30 TrivialYvCompositions, 12 ConcurrentYvCompositions, 10 ChoiceCompositions, 391 TotalNumberOfCompositions, 235840 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 50748, independent: 48326, independent conditional: 0, independent unconditional: 48326, dependent: 2422, dependent conditional: 0, dependent unconditional: 2422, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 14438, independent: 14169, independent conditional: 0, independent unconditional: 14169, dependent: 269, dependent conditional: 0, dependent unconditional: 269, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 50748, independent: 34157, independent conditional: 0, independent unconditional: 34157, dependent: 2153, dependent conditional: 0, dependent unconditional: 2153, unknown: 14438, unknown conditional: 0, unknown unconditional: 14438] , Statistics on independence cache: Total cache size (in pairs): 2885, Positive cache size: 2722, Positive conditional cache size: 0, Positive unconditional cache size: 2722, Negative cache size: 163, Negative conditional cache size: 0, Negative unconditional cache size: 163, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 57]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 100]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 673 locations, 96 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 27.0s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 17.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4851 SdHoareTripleChecker+Valid, 6.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3256 mSDsluCounter, 1577 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1224 mSDsCounter, 1179 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8527 IncrementalHoareTripleChecker+Invalid, 9706 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1179 mSolverCounterUnsat, 353 mSDtfsCounter, 8527 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=587occurred in iteration=14, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 343 NumberOfCodeBlocks, 343 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 1140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 56 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 16:30:41,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c762f603-298f-436d-baa6-25c75563e8ea/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE