./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro --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 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f --- 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-8393723 [2022-11-18 19:57:47,472 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:57:47,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:57:47,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:57:47,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:57:47,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:57:47,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:57:47,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:57:47,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:57:47,547 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:57:47,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:57:47,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:57:47,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:57:47,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:57:47,558 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:57:47,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:57:47,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:57:47,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:57:47,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:57:47,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:57:47,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:57:47,582 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:57:47,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:57:47,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:57:47,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:57:47,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:57:47,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:57:47,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:57:47,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:57:47,605 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:57:47,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:57:47,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:57:47,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:57:47,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:57:47,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:57:47,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:57:47,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:57:47,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:57:47,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:57:47,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:57:47,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:57:47,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 19:57:47,676 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:57:47,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:57:47,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:57:47,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:57:47,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:57:47,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:57:47,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:57:47,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:57:47,681 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:57:47,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:57:47,682 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:57:47,683 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:57:47,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:57:47,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:57:47,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:57:47,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:57:47,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:57:47,685 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:57:47,685 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 19:57:47,685 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:57:47,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:57:47,686 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:57:47,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:57:47,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:57:47,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:57:47,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:57:47,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:57:47,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:57:47,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:57:47,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:57:47,690 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:57:47,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:57:47,691 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:57:47,692 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:57:47,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:57:47,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 514e162b13bdcbe99106b4f79e5a61b8afdae9b478788e06b35106cd952df62f [2022-11-18 19:57:48,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:57:48,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:57:48,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:57:48,076 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:57:48,077 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:57:48,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2022-11-18 19:57:48,187 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/data/03206ffbe/bceb6d15f97b4a829397d258192d2d1f/FLAG5001865e0 [2022-11-18 19:57:48,924 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:57:48,925 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/sv-benchmarks/c/weaver/chl-node-symm.wvr.c [2022-11-18 19:57:48,936 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/data/03206ffbe/bceb6d15f97b4a829397d258192d2d1f/FLAG5001865e0 [2022-11-18 19:57:49,220 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/data/03206ffbe/bceb6d15f97b4a829397d258192d2d1f [2022-11-18 19:57:49,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:57:49,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:57:49,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:57:49,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:57:49,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:57:49,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b06302 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49, skipping insertion in model container [2022-11-18 19:57:49,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:57:49,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:57:49,553 WARN L234 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_dec2edf6-8f05-40c4-8a81-9866a23921f8/sv-benchmarks/c/weaver/chl-node-symm.wvr.c[3305,3318] [2022-11-18 19:57:49,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:57:49,588 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:57:49,636 WARN L234 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_dec2edf6-8f05-40c4-8a81-9866a23921f8/sv-benchmarks/c/weaver/chl-node-symm.wvr.c[3305,3318] [2022-11-18 19:57:49,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:57:49,664 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:57:49,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49 WrapperNode [2022-11-18 19:57:49,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:57:49,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:57:49,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:57:49,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:57:49,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,755 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 18, calls inlined = 24, statements flattened = 542 [2022-11-18 19:57:49,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:57:49,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:57:49,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:57:49,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:57:49,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,832 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:57:49,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:57:49,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:57:49,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:57:49,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (1/1) ... [2022-11-18 19:57:49,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:57:49,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:57:49,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:57:49,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dec2edf6-8f05-40c4-8a81-9866a23921f8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:57:49,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:57:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:57:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:57:49,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:57:49,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 19:57:49,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 19:57:49,985 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 19:57:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 19:57:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:57:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:57:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:57:49,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:57:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:57:49,989 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 19:57:50,226 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:57:50,228 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:57:51,448 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:57:51,484 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:57:51,484 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-18 19:57:51,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:57:51 BoogieIcfgContainer [2022-11-18 19:57:51,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:57:51,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:57:51,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:57:51,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:57:51,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:57:49" (1/3) ... [2022-11-18 19:57:51,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e59cf1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:57:51, skipping insertion in model container [2022-11-18 19:57:51,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:57:49" (2/3) ... [2022-11-18 19:57:51,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e59cf1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:57:51, skipping insertion in model container [2022-11-18 19:57:51,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:57:51" (3/3) ... [2022-11-18 19:57:51,503 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-node-symm.wvr.c [2022-11-18 19:57:51,514 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 19:57:51,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:57:51,529 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-11-18 19:57:51,529 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 19:57:51,827 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 19:57:51,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 692 places, 718 transitions, 1452 flow [2022-11-18 19:57:52,360 INFO L130 PetriNetUnfolder]: 33/716 cut-off events. [2022-11-18 19:57:52,360 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:57:52,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 725 conditions, 716 events. 33/716 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1157 event pairs, 0 based on Foata normal form. 0/603 useless extension candidates. Maximal degree in co-relation 506. Up to 2 conditions per place. [2022-11-18 19:57:52,381 INFO L82 GeneralOperation]: Start removeDead. Operand has 692 places, 718 transitions, 1452 flow [2022-11-18 19:57:52,401 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 669 places, 693 transitions, 1398 flow [2022-11-18 19:57:52,423 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:57:52,435 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;@5fb3e8d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:57:52,436 INFO L358 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2022-11-18 19:57:52,443 INFO L130 PetriNetUnfolder]: 0/30 cut-off events. [2022-11-18 19:57:52,443 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 19:57:52,443 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:52,444 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, 1] [2022-11-18 19:57:52,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:57:52,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:52,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1184178590, now seen corresponding path program 1 times [2022-11-18 19:57:52,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:52,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994975920] [2022-11-18 19:57:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:52,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:52,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:52,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:52,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:52,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994975920] [2022-11-18 19:57:52,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994975920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:52,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:52,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:57:52,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503149248] [2022-11-18 19:57:52,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:52,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:52,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:52,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:52,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:52,898 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 657 out of 718 [2022-11-18 19:57:52,911 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 693 transitions, 1398 flow. Second operand has 3 states, 3 states have (on average 658.3333333333334) internal successors, (1975), 3 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:52,912 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:52,912 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 657 of 718 [2022-11-18 19:57:52,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:54,231 INFO L130 PetriNetUnfolder]: 160/2598 cut-off events. [2022-11-18 19:57:54,232 INFO L131 PetriNetUnfolder]: For 47/47 co-relation queries the response was YES. [2022-11-18 19:57:54,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2880 conditions, 2598 events. 160/2598 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 16992 event pairs, 99 based on Foata normal form. 51/2144 useless extension candidates. Maximal degree in co-relation 2316. Up to 243 conditions per place. [2022-11-18 19:57:54,265 INFO L137 encePairwiseOnDemand]: 696/718 looper letters, 37 selfloop transitions, 2 changer transitions 11/673 dead transitions. [2022-11-18 19:57:54,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 673 transitions, 1436 flow [2022-11-18 19:57:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:57:54,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:57:54,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2030 transitions. [2022-11-18 19:57:54,302 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9424326833797586 [2022-11-18 19:57:54,303 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2030 transitions. [2022-11-18 19:57:54,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2030 transitions. [2022-11-18 19:57:54,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:54,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2030 transitions. [2022-11-18 19:57:54,326 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 676.6666666666666) internal successors, (2030), 3 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:54,342 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:54,345 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:54,348 INFO L175 Difference]: Start difference. First operand has 669 places, 693 transitions, 1398 flow. Second operand 3 states and 2030 transitions. [2022-11-18 19:57:54,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 670 places, 673 transitions, 1436 flow [2022-11-18 19:57:54,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 673 transitions, 1428 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 19:57:54,383 INFO L231 Difference]: Finished difference. Result has 666 places, 662 transitions, 1332 flow [2022-11-18 19:57:54,387 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1350, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=673, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=671, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1332, PETRI_PLACES=666, PETRI_TRANSITIONS=662} [2022-11-18 19:57:54,395 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -3 predicate places. [2022-11-18 19:57:54,395 INFO L495 AbstractCegarLoop]: Abstraction has has 666 places, 662 transitions, 1332 flow [2022-11-18 19:57:54,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 658.3333333333334) internal successors, (1975), 3 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:54,397 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:54,398 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, 1, 1, 1, 1, 1] [2022-11-18 19:57:54,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:57:54,399 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:57:54,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:54,400 INFO L85 PathProgramCache]: Analyzing trace with hash -813262189, now seen corresponding path program 1 times [2022-11-18 19:57:54,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:54,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689318927] [2022-11-18 19:57:54,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:54,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:54,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:54,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689318927] [2022-11-18 19:57:54,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689318927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:54,538 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:54,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:57:54,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821421249] [2022-11-18 19:57:54,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:54,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:54,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:54,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:54,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:54,552 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 660 out of 718 [2022-11-18 19:57:54,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 662 transitions, 1332 flow. Second operand has 3 states, 3 states have (on average 661.3333333333334) internal successors, (1984), 3 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:54,556 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:54,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 660 of 718 [2022-11-18 19:57:54,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:55,431 INFO L130 PetriNetUnfolder]: 97/2070 cut-off events. [2022-11-18 19:57:55,431 INFO L131 PetriNetUnfolder]: For 10/10 co-relation queries the response was YES. [2022-11-18 19:57:55,442 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2210 conditions, 2070 events. 97/2070 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 11990 event pairs, 48 based on Foata normal form. 0/1730 useless extension candidates. Maximal degree in co-relation 2170. Up to 125 conditions per place. [2022-11-18 19:57:55,454 INFO L137 encePairwiseOnDemand]: 707/718 looper letters, 25 selfloop transitions, 1 changer transitions 0/652 dead transitions. [2022-11-18 19:57:55,455 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 647 places, 652 transitions, 1364 flow [2022-11-18 19:57:55,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:57:55,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:57:55,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-11-18 19:57:55,461 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.935933147632312 [2022-11-18 19:57:55,462 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-11-18 19:57:55,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-11-18 19:57:55,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:55,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-11-18 19:57:55,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:55,475 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:55,477 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:55,477 INFO L175 Difference]: Start difference. First operand has 666 places, 662 transitions, 1332 flow. Second operand 3 states and 2016 transitions. [2022-11-18 19:57:55,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 647 places, 652 transitions, 1364 flow [2022-11-18 19:57:55,482 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 652 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:57:55,492 INFO L231 Difference]: Finished difference. Result has 645 places, 652 transitions, 1310 flow [2022-11-18 19:57:55,493 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1308, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=652, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=651, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1310, PETRI_PLACES=645, PETRI_TRANSITIONS=652} [2022-11-18 19:57:55,494 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -24 predicate places. [2022-11-18 19:57:55,495 INFO L495 AbstractCegarLoop]: Abstraction has has 645 places, 652 transitions, 1310 flow [2022-11-18 19:57:55,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 661.3333333333334) internal successors, (1984), 3 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:55,496 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:55,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:57:55,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:57:55,497 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:57:55,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:55,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1913372411, now seen corresponding path program 1 times [2022-11-18 19:57:55,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:55,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137216482] [2022-11-18 19:57:55,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:55,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:55,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:55,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:55,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:55,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137216482] [2022-11-18 19:57:55,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137216482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:55,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:55,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:57:55,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213528708] [2022-11-18 19:57:55,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:55,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:55,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:55,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:55,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:55,633 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 657 out of 718 [2022-11-18 19:57:55,636 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 652 transitions, 1310 flow. Second operand has 3 states, 3 states have (on average 658.3333333333334) internal successors, (1975), 3 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:55,636 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:55,636 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 657 of 718 [2022-11-18 19:57:55,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:56,537 INFO L130 PetriNetUnfolder]: 162/2592 cut-off events. [2022-11-18 19:57:56,537 INFO L131 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2022-11-18 19:57:56,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2856 conditions, 2592 events. 162/2592 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 16789 event pairs, 99 based on Foata normal form. 0/2139 useless extension candidates. Maximal degree in co-relation 2817. Up to 248 conditions per place. [2022-11-18 19:57:56,569 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 37 selfloop transitions, 2 changer transitions 0/651 dead transitions. [2022-11-18 19:57:56,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 651 transitions, 1386 flow [2022-11-18 19:57:56,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:57:56,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:57:56,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2011 transitions. [2022-11-18 19:57:56,576 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9336118848653667 [2022-11-18 19:57:56,577 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2011 transitions. [2022-11-18 19:57:56,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2011 transitions. [2022-11-18 19:57:56,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:56,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2011 transitions. [2022-11-18 19:57:56,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 670.3333333333334) internal successors, (2011), 3 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:56,593 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:56,595 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:56,596 INFO L175 Difference]: Start difference. First operand has 645 places, 652 transitions, 1310 flow. Second operand 3 states and 2011 transitions. [2022-11-18 19:57:56,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 651 transitions, 1386 flow [2022-11-18 19:57:56,601 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 645 places, 651 transitions, 1385 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:57:56,609 INFO L231 Difference]: Finished difference. Result has 645 places, 651 transitions, 1311 flow [2022-11-18 19:57:56,611 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1307, PETRI_DIFFERENCE_MINUEND_PLACES=643, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=651, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=649, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1311, PETRI_PLACES=645, PETRI_TRANSITIONS=651} [2022-11-18 19:57:56,614 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -24 predicate places. [2022-11-18 19:57:56,615 INFO L495 AbstractCegarLoop]: Abstraction has has 645 places, 651 transitions, 1311 flow [2022-11-18 19:57:56,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 658.3333333333334) internal successors, (1975), 3 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:56,617 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:56,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:57:56,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:57:56,617 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:57:56,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:56,619 INFO L85 PathProgramCache]: Analyzing trace with hash -101771815, now seen corresponding path program 1 times [2022-11-18 19:57:56,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:56,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56427296] [2022-11-18 19:57:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:56,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:56,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:56,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:56,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56427296] [2022-11-18 19:57:56,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56427296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:56,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:56,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:57:56,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973096494] [2022-11-18 19:57:56,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:56,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:56,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:56,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:56,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:56,742 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 660 out of 718 [2022-11-18 19:57:56,745 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 645 places, 651 transitions, 1311 flow. Second operand has 3 states, 3 states have (on average 661.3333333333334) internal successors, (1984), 3 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:56,746 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:56,746 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 660 of 718 [2022-11-18 19:57:56,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:57,483 INFO L130 PetriNetUnfolder]: 98/2057 cut-off events. [2022-11-18 19:57:57,483 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-18 19:57:57,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2200 conditions, 2057 events. 98/2057 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 11767 event pairs, 48 based on Foata normal form. 0/1750 useless extension candidates. Maximal degree in co-relation 2162. Up to 127 conditions per place. [2022-11-18 19:57:57,511 INFO L137 encePairwiseOnDemand]: 707/718 looper letters, 25 selfloop transitions, 1 changer transitions 0/641 dead transitions. [2022-11-18 19:57:57,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 641 transitions, 1343 flow [2022-11-18 19:57:57,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:57:57,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:57:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-11-18 19:57:57,518 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.935933147632312 [2022-11-18 19:57:57,519 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-11-18 19:57:57,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-11-18 19:57:57,522 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:57,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-11-18 19:57:57,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 672.0) internal successors, (2016), 3 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:57,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:57,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:57,542 INFO L175 Difference]: Start difference. First operand has 645 places, 651 transitions, 1311 flow. Second operand 3 states and 2016 transitions. [2022-11-18 19:57:57,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 641 transitions, 1343 flow [2022-11-18 19:57:57,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 635 places, 641 transitions, 1339 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:57:57,560 INFO L231 Difference]: Finished difference. Result has 635 places, 641 transitions, 1289 flow [2022-11-18 19:57:57,561 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1287, PETRI_DIFFERENCE_MINUEND_PLACES=633, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1289, PETRI_PLACES=635, PETRI_TRANSITIONS=641} [2022-11-18 19:57:57,565 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -34 predicate places. [2022-11-18 19:57:57,565 INFO L495 AbstractCegarLoop]: Abstraction has has 635 places, 641 transitions, 1289 flow [2022-11-18 19:57:57,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 661.3333333333334) internal successors, (1984), 3 states have internal predecessors, (1984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:57,567 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:57,568 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:57:57,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:57:57,568 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:57:57,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:57,569 INFO L85 PathProgramCache]: Analyzing trace with hash -2135777537, now seen corresponding path program 1 times [2022-11-18 19:57:57,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:57,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285544780] [2022-11-18 19:57:57,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:57,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:57,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:57,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:57,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285544780] [2022-11-18 19:57:57,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285544780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:57,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:57,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:57:57,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110467684] [2022-11-18 19:57:57,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:57,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:57,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:57,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:57,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:57,690 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-18 19:57:57,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 641 transitions, 1289 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:57,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:57,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-18 19:57:57,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:57,978 INFO L130 PetriNetUnfolder]: 18/810 cut-off events. [2022-11-18 19:57:57,978 INFO L131 PetriNetUnfolder]: For 2/5 co-relation queries the response was YES. [2022-11-18 19:57:57,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 810 events. 18/810 cut-off events. For 2/5 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1618 event pairs, 3 based on Foata normal form. 0/711 useless extension candidates. Maximal degree in co-relation 805. Up to 23 conditions per place. [2022-11-18 19:57:57,989 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 16 selfloop transitions, 2 changer transitions 0/640 dead transitions. [2022-11-18 19:57:57,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 640 transitions, 1323 flow [2022-11-18 19:57:57,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:57:57,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:57:57,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2022-11-18 19:57:57,996 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531104921077066 [2022-11-18 19:57:57,996 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2022-11-18 19:57:57,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2022-11-18 19:57:57,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:57,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2022-11-18 19:57:58,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,014 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,015 INFO L175 Difference]: Start difference. First operand has 635 places, 641 transitions, 1289 flow. Second operand 3 states and 2053 transitions. [2022-11-18 19:57:58,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 640 transitions, 1323 flow [2022-11-18 19:57:58,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 635 places, 640 transitions, 1322 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 19:57:58,083 INFO L231 Difference]: Finished difference. Result has 635 places, 640 transitions, 1290 flow [2022-11-18 19:57:58,084 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1286, PETRI_DIFFERENCE_MINUEND_PLACES=633, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1290, PETRI_PLACES=635, PETRI_TRANSITIONS=640} [2022-11-18 19:57:58,087 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -34 predicate places. [2022-11-18 19:57:58,088 INFO L495 AbstractCegarLoop]: Abstraction has has 635 places, 640 transitions, 1290 flow [2022-11-18 19:57:58,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,089 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:58,090 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:57:58,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:57:58,090 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:57:58,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:58,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1688992514, now seen corresponding path program 1 times [2022-11-18 19:57:58,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:58,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442985] [2022-11-18 19:57:58,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:58,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:58,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:58,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:58,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442985] [2022-11-18 19:57:58,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:58,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:58,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:57:58,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276833442] [2022-11-18 19:57:58,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:58,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:58,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:58,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:58,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:58,171 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-18 19:57:58,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 640 transitions, 1290 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:58,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-18 19:57:58,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:58,416 INFO L130 PetriNetUnfolder]: 27/931 cut-off events. [2022-11-18 19:57:58,416 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 19:57:58,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 985 conditions, 931 events. 27/931 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3030 event pairs, 9 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 946. Up to 35 conditions per place. [2022-11-18 19:57:58,429 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 16 selfloop transitions, 2 changer transitions 0/639 dead transitions. [2022-11-18 19:57:58,430 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 636 places, 639 transitions, 1324 flow [2022-11-18 19:57:58,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:57:58,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:57:58,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2022-11-18 19:57:58,435 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531104921077066 [2022-11-18 19:57:58,435 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2022-11-18 19:57:58,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2022-11-18 19:57:58,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:58,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2022-11-18 19:57:58,443 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,450 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,450 INFO L175 Difference]: Start difference. First operand has 635 places, 640 transitions, 1290 flow. Second operand 3 states and 2053 transitions. [2022-11-18 19:57:58,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 636 places, 639 transitions, 1324 flow [2022-11-18 19:57:58,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 639 transitions, 1320 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:57:58,465 INFO L231 Difference]: Finished difference. Result has 634 places, 639 transitions, 1288 flow [2022-11-18 19:57:58,466 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1284, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1288, PETRI_PLACES=634, PETRI_TRANSITIONS=639} [2022-11-18 19:57:58,467 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -35 predicate places. [2022-11-18 19:57:58,467 INFO L495 AbstractCegarLoop]: Abstraction has has 634 places, 639 transitions, 1288 flow [2022-11-18 19:57:58,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,469 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:58,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:57:58,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:57:58,470 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:57:58,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:58,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1749293136, now seen corresponding path program 1 times [2022-11-18 19:57:58,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:58,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531180134] [2022-11-18 19:57:58,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:58,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:58,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:58,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:58,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531180134] [2022-11-18 19:57:58,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531180134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:58,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:58,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:57:58,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107604049] [2022-11-18 19:57:58,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:58,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:58,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:58,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:58,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:58,529 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-18 19:57:58,532 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 634 places, 639 transitions, 1288 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,532 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:58,533 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-18 19:57:58,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:58,778 INFO L130 PetriNetUnfolder]: 27/911 cut-off events. [2022-11-18 19:57:58,778 INFO L131 PetriNetUnfolder]: For 2/11 co-relation queries the response was YES. [2022-11-18 19:57:58,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 965 conditions, 911 events. 27/911 cut-off events. For 2/11 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2722 event pairs, 9 based on Foata normal form. 0/796 useless extension candidates. Maximal degree in co-relation 926. Up to 35 conditions per place. [2022-11-18 19:57:58,791 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 16 selfloop transitions, 2 changer transitions 0/638 dead transitions. [2022-11-18 19:57:58,792 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 638 transitions, 1322 flow [2022-11-18 19:57:58,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:57:58,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:57:58,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2022-11-18 19:57:58,798 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531104921077066 [2022-11-18 19:57:58,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2022-11-18 19:57:58,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2022-11-18 19:57:58,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:58,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2022-11-18 19:57:58,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,812 INFO L175 Difference]: Start difference. First operand has 634 places, 639 transitions, 1288 flow. Second operand 3 states and 2053 transitions. [2022-11-18 19:57:58,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 638 transitions, 1322 flow [2022-11-18 19:57:58,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 633 places, 638 transitions, 1318 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:57:58,828 INFO L231 Difference]: Finished difference. Result has 633 places, 638 transitions, 1286 flow [2022-11-18 19:57:58,830 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1282, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=636, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1286, PETRI_PLACES=633, PETRI_TRANSITIONS=638} [2022-11-18 19:57:58,831 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -36 predicate places. [2022-11-18 19:57:58,831 INFO L495 AbstractCegarLoop]: Abstraction has has 633 places, 638 transitions, 1286 flow [2022-11-18 19:57:58,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,833 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:58,833 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:57:58,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:57:58,834 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:57:58,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:58,835 INFO L85 PathProgramCache]: Analyzing trace with hash -2070589419, now seen corresponding path program 1 times [2022-11-18 19:57:58,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:58,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323634243] [2022-11-18 19:57:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:58,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:58,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:58,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:58,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323634243] [2022-11-18 19:57:58,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323634243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:58,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:58,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:57:58,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820241890] [2022-11-18 19:57:58,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:58,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:58,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:58,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:58,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:58,906 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-18 19:57:58,910 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 633 places, 638 transitions, 1286 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:58,910 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:58,910 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-18 19:57:58,911 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:59,121 INFO L130 PetriNetUnfolder]: 15/654 cut-off events. [2022-11-18 19:57:59,121 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-18 19:57:59,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 686 conditions, 654 events. 15/654 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1169 event pairs, 3 based on Foata normal form. 0/581 useless extension candidates. Maximal degree in co-relation 647. Up to 22 conditions per place. [2022-11-18 19:57:59,132 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 15 selfloop transitions, 2 changer transitions 0/637 dead transitions. [2022-11-18 19:57:59,132 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 634 places, 637 transitions, 1318 flow [2022-11-18 19:57:59,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:57:59,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:57:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2052 transitions. [2022-11-18 19:57:59,138 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9526462395543176 [2022-11-18 19:57:59,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2052 transitions. [2022-11-18 19:57:59,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2052 transitions. [2022-11-18 19:57:59,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:59,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2052 transitions. [2022-11-18 19:57:59,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.0) internal successors, (2052), 3 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,152 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,152 INFO L175 Difference]: Start difference. First operand has 633 places, 638 transitions, 1286 flow. Second operand 3 states and 2052 transitions. [2022-11-18 19:57:59,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 634 places, 637 transitions, 1318 flow [2022-11-18 19:57:59,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 632 places, 637 transitions, 1314 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:57:59,164 INFO L231 Difference]: Finished difference. Result has 632 places, 637 transitions, 1284 flow [2022-11-18 19:57:59,166 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1280, PETRI_DIFFERENCE_MINUEND_PLACES=630, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=635, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1284, PETRI_PLACES=632, PETRI_TRANSITIONS=637} [2022-11-18 19:57:59,167 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -37 predicate places. [2022-11-18 19:57:59,167 INFO L495 AbstractCegarLoop]: Abstraction has has 632 places, 637 transitions, 1284 flow [2022-11-18 19:57:59,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,168 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:59,169 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:57:59,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:57:59,169 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:57:59,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:59,170 INFO L85 PathProgramCache]: Analyzing trace with hash -380454134, now seen corresponding path program 1 times [2022-11-18 19:57:59,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:59,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360131886] [2022-11-18 19:57:59,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:59,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:59,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:59,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:59,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360131886] [2022-11-18 19:57:59,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360131886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:59,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:59,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:57:59,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110868714] [2022-11-18 19:57:59,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:59,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:59,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:59,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:59,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:59,228 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-18 19:57:59,230 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 637 transitions, 1284 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:59,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-18 19:57:59,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:59,433 INFO L130 PetriNetUnfolder]: 24/775 cut-off events. [2022-11-18 19:57:59,433 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-18 19:57:59,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 820 conditions, 775 events. 24/775 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1815 event pairs, 9 based on Foata normal form. 0/676 useless extension candidates. Maximal degree in co-relation 781. Up to 35 conditions per place. [2022-11-18 19:57:59,444 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 16 selfloop transitions, 2 changer transitions 0/636 dead transitions. [2022-11-18 19:57:59,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 633 places, 636 transitions, 1318 flow [2022-11-18 19:57:59,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:57:59,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:57:59,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2022-11-18 19:57:59,450 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531104921077066 [2022-11-18 19:57:59,450 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2022-11-18 19:57:59,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2022-11-18 19:57:59,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:59,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2022-11-18 19:57:59,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,462 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,463 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,463 INFO L175 Difference]: Start difference. First operand has 632 places, 637 transitions, 1284 flow. Second operand 3 states and 2053 transitions. [2022-11-18 19:57:59,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 633 places, 636 transitions, 1318 flow [2022-11-18 19:57:59,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 631 places, 636 transitions, 1314 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:57:59,475 INFO L231 Difference]: Finished difference. Result has 631 places, 636 transitions, 1282 flow [2022-11-18 19:57:59,477 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1278, PETRI_DIFFERENCE_MINUEND_PLACES=629, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1282, PETRI_PLACES=631, PETRI_TRANSITIONS=636} [2022-11-18 19:57:59,477 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -38 predicate places. [2022-11-18 19:57:59,478 INFO L495 AbstractCegarLoop]: Abstraction has has 631 places, 636 transitions, 1282 flow [2022-11-18 19:57:59,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,479 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:59,479 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:57:59,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:57:59,480 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:57:59,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:59,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1692124872, now seen corresponding path program 1 times [2022-11-18 19:57:59,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:59,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753711877] [2022-11-18 19:57:59,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:59,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:59,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:59,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753711877] [2022-11-18 19:57:59,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753711877] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:59,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:59,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:57:59,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335714955] [2022-11-18 19:57:59,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:59,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:59,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:59,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:59,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:59,536 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-18 19:57:59,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 631 places, 636 transitions, 1282 flow. Second operand has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:59,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-18 19:57:59,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:57:59,734 INFO L130 PetriNetUnfolder]: 24/755 cut-off events. [2022-11-18 19:57:59,735 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-18 19:57:59,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 800 conditions, 755 events. 24/755 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1743 event pairs, 9 based on Foata normal form. 0/660 useless extension candidates. Maximal degree in co-relation 761. Up to 35 conditions per place. [2022-11-18 19:57:59,746 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 16 selfloop transitions, 2 changer transitions 0/635 dead transitions. [2022-11-18 19:57:59,746 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 635 transitions, 1316 flow [2022-11-18 19:57:59,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:57:59,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:57:59,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2053 transitions. [2022-11-18 19:57:59,752 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9531104921077066 [2022-11-18 19:57:59,752 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2053 transitions. [2022-11-18 19:57:59,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2053 transitions. [2022-11-18 19:57:59,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:57:59,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2053 transitions. [2022-11-18 19:57:59,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 684.3333333333334) internal successors, (2053), 3 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,765 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,765 INFO L175 Difference]: Start difference. First operand has 631 places, 636 transitions, 1282 flow. Second operand 3 states and 2053 transitions. [2022-11-18 19:57:59,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 635 transitions, 1316 flow [2022-11-18 19:57:59,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 635 transitions, 1312 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:57:59,778 INFO L231 Difference]: Finished difference. Result has 630 places, 635 transitions, 1280 flow [2022-11-18 19:57:59,779 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1276, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=635, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1280, PETRI_PLACES=630, PETRI_TRANSITIONS=635} [2022-11-18 19:57:59,780 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -39 predicate places. [2022-11-18 19:57:59,781 INFO L495 AbstractCegarLoop]: Abstraction has has 630 places, 635 transitions, 1280 flow [2022-11-18 19:57:59,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.3333333333334) internal successors, (2038), 3 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,782 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:57:59,782 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:57:59,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:57:59,783 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:57:59,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:57:59,783 INFO L85 PathProgramCache]: Analyzing trace with hash 877256777, now seen corresponding path program 1 times [2022-11-18 19:57:59,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:57:59,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708042401] [2022-11-18 19:57:59,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:57:59,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:57:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:57:59,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:57:59,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:57:59,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708042401] [2022-11-18 19:57:59,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708042401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:57:59,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:57:59,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:57:59,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106906548] [2022-11-18 19:57:59,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:57:59,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:57:59,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:57:59,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:57:59,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:57:59,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 675 out of 718 [2022-11-18 19:57:59,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 635 transitions, 1280 flow. Second operand has 3 states, 3 states have (on average 676.3333333333334) internal successors, (2029), 3 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:57:59,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:57:59,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 675 of 718 [2022-11-18 19:57:59,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:00,381 INFO L130 PetriNetUnfolder]: 86/1900 cut-off events. [2022-11-18 19:58:00,381 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-18 19:58:00,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2037 conditions, 1900 events. 86/1900 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 10226 event pairs, 48 based on Foata normal form. 0/1620 useless extension candidates. Maximal degree in co-relation 1998. Up to 121 conditions per place. [2022-11-18 19:58:00,406 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 19 selfloop transitions, 2 changer transitions 0/634 dead transitions. [2022-11-18 19:58:00,407 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 634 transitions, 1320 flow [2022-11-18 19:58:00,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:58:00,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:58:00,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2047 transitions. [2022-11-18 19:58:00,452 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503249767873724 [2022-11-18 19:58:00,452 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2047 transitions. [2022-11-18 19:58:00,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2047 transitions. [2022-11-18 19:58:00,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:00,454 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2047 transitions. [2022-11-18 19:58:00,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:00,464 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:00,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:00,465 INFO L175 Difference]: Start difference. First operand has 630 places, 635 transitions, 1280 flow. Second operand 3 states and 2047 transitions. [2022-11-18 19:58:00,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 634 transitions, 1320 flow [2022-11-18 19:58:00,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 629 places, 634 transitions, 1316 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:58:00,477 INFO L231 Difference]: Finished difference. Result has 629 places, 634 transitions, 1278 flow [2022-11-18 19:58:00,479 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1274, PETRI_DIFFERENCE_MINUEND_PLACES=627, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=634, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=632, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1278, PETRI_PLACES=629, PETRI_TRANSITIONS=634} [2022-11-18 19:58:00,479 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -40 predicate places. [2022-11-18 19:58:00,480 INFO L495 AbstractCegarLoop]: Abstraction has has 629 places, 634 transitions, 1278 flow [2022-11-18 19:58:00,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 676.3333333333334) internal successors, (2029), 3 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:00,481 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:00,481 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:58:00,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:58:00,482 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:58:00,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:00,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1773547042, now seen corresponding path program 1 times [2022-11-18 19:58:00,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:00,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317308463] [2022-11-18 19:58:00,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:00,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:01,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:58:01,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:01,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317308463] [2022-11-18 19:58:01,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317308463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:01,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:01,335 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:58:01,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730764000] [2022-11-18 19:58:01,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:01,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:58:01,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:01,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:58:01,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:58:01,342 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 581 out of 718 [2022-11-18 19:58:01,346 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 634 transitions, 1278 flow. Second operand has 6 states, 6 states have (on average 582.8333333333334) internal successors, (3497), 6 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:01,347 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:01,347 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 581 of 718 [2022-11-18 19:58:01,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:14,520 INFO L130 PetriNetUnfolder]: 13395/51167 cut-off events. [2022-11-18 19:58:14,520 INFO L131 PetriNetUnfolder]: For 62/67 co-relation queries the response was YES. [2022-11-18 19:58:14,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70760 conditions, 51167 events. 13395/51167 cut-off events. For 62/67 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 634825 event pairs, 12300 based on Foata normal form. 0/42422 useless extension candidates. Maximal degree in co-relation 70722. Up to 19545 conditions per place. [2022-11-18 19:58:15,025 INFO L137 encePairwiseOnDemand]: 706/718 looper letters, 104 selfloop transitions, 10 changer transitions 0/632 dead transitions. [2022-11-18 19:58:15,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 632 transitions, 1502 flow [2022-11-18 19:58:15,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:58:15,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 19:58:15,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3602 transitions. [2022-11-18 19:58:15,037 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8361188486536676 [2022-11-18 19:58:15,038 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3602 transitions. [2022-11-18 19:58:15,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3602 transitions. [2022-11-18 19:58:15,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:15,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3602 transitions. [2022-11-18 19:58:15,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 600.3333333333334) internal successors, (3602), 6 states have internal predecessors, (3602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:15,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 718.0) internal successors, (5026), 7 states have internal predecessors, (5026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:15,065 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 718.0) internal successors, (5026), 7 states have internal predecessors, (5026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:15,066 INFO L175 Difference]: Start difference. First operand has 629 places, 634 transitions, 1278 flow. Second operand 6 states and 3602 transitions. [2022-11-18 19:58:15,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 632 transitions, 1502 flow [2022-11-18 19:58:15,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 632 transitions, 1498 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:58:15,082 INFO L231 Difference]: Finished difference. Result has 630 places, 632 transitions, 1290 flow [2022-11-18 19:58:15,084 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1270, PETRI_DIFFERENCE_MINUEND_PLACES=625, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=632, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=622, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1290, PETRI_PLACES=630, PETRI_TRANSITIONS=632} [2022-11-18 19:58:15,087 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -39 predicate places. [2022-11-18 19:58:15,088 INFO L495 AbstractCegarLoop]: Abstraction has has 630 places, 632 transitions, 1290 flow [2022-11-18 19:58:15,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 582.8333333333334) internal successors, (3497), 6 states have internal predecessors, (3497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:15,091 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:15,091 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:58:15,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 19:58:15,092 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:58:15,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:15,093 INFO L85 PathProgramCache]: Analyzing trace with hash 543053272, now seen corresponding path program 1 times [2022-11-18 19:58:15,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:15,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876233464] [2022-11-18 19:58:15,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:15,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:15,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:58:15,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:15,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876233464] [2022-11-18 19:58:15,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876233464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:15,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:15,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:58:15,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846812235] [2022-11-18 19:58:15,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:15,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:58:15,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:15,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:58:15,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:58:15,200 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 675 out of 718 [2022-11-18 19:58:15,203 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 632 transitions, 1290 flow. Second operand has 3 states, 3 states have (on average 676.3333333333334) internal successors, (2029), 3 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:15,204 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:15,204 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 675 of 718 [2022-11-18 19:58:15,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:15,921 INFO L130 PetriNetUnfolder]: 81/1852 cut-off events. [2022-11-18 19:58:15,921 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-18 19:58:15,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1995 conditions, 1852 events. 81/1852 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 9847 event pairs, 48 based on Foata normal form. 0/1594 useless extension candidates. Maximal degree in co-relation 1962. Up to 119 conditions per place. [2022-11-18 19:58:15,936 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 19 selfloop transitions, 2 changer transitions 0/631 dead transitions. [2022-11-18 19:58:15,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 631 places, 631 transitions, 1330 flow [2022-11-18 19:58:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:58:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:58:15,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2047 transitions. [2022-11-18 19:58:15,942 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503249767873724 [2022-11-18 19:58:15,943 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2047 transitions. [2022-11-18 19:58:15,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2047 transitions. [2022-11-18 19:58:15,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:15,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2047 transitions. [2022-11-18 19:58:15,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:15,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:15,955 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:15,955 INFO L175 Difference]: Start difference. First operand has 630 places, 632 transitions, 1290 flow. Second operand 3 states and 2047 transitions. [2022-11-18 19:58:15,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 631 places, 631 transitions, 1330 flow [2022-11-18 19:58:15,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 626 places, 631 transitions, 1310 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 19:58:15,967 INFO L231 Difference]: Finished difference. Result has 626 places, 631 transitions, 1272 flow [2022-11-18 19:58:15,969 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=631, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=629, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1272, PETRI_PLACES=626, PETRI_TRANSITIONS=631} [2022-11-18 19:58:15,970 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -43 predicate places. [2022-11-18 19:58:15,971 INFO L495 AbstractCegarLoop]: Abstraction has has 626 places, 631 transitions, 1272 flow [2022-11-18 19:58:15,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 676.3333333333334) internal successors, (2029), 3 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:15,972 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:15,973 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:58:15,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 19:58:15,973 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:58:15,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:15,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1412765037, now seen corresponding path program 1 times [2022-11-18 19:58:15,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:15,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974207517] [2022-11-18 19:58:15,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:15,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:16,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:16,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:58:16,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:16,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974207517] [2022-11-18 19:58:16,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974207517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:16,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:16,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:58:16,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555480299] [2022-11-18 19:58:16,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:16,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:58:16,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:16,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:58:16,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:58:16,235 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 581 out of 718 [2022-11-18 19:58:16,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 631 transitions, 1272 flow. Second operand has 3 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 3 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:16,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:16,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 581 of 718 [2022-11-18 19:58:16,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:28,306 INFO L130 PetriNetUnfolder]: 13395/51164 cut-off events. [2022-11-18 19:58:28,307 INFO L131 PetriNetUnfolder]: For 62/67 co-relation queries the response was YES. [2022-11-18 19:58:28,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70755 conditions, 51164 events. 13395/51164 cut-off events. For 62/67 co-relation queries the response was YES. Maximal size of possible extension queue 708. Compared 635070 event pairs, 12300 based on Foata normal form. 0/42422 useless extension candidates. Maximal degree in co-relation 70717. Up to 19549 conditions per place. [2022-11-18 19:58:28,674 INFO L137 encePairwiseOnDemand]: 712/718 looper letters, 108 selfloop transitions, 4 changer transitions 0/629 dead transitions. [2022-11-18 19:58:28,675 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 629 transitions, 1492 flow [2022-11-18 19:58:28,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:58:28,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:58:28,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1857 transitions. [2022-11-18 19:58:28,681 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.862116991643454 [2022-11-18 19:58:28,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1857 transitions. [2022-11-18 19:58:28,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1857 transitions. [2022-11-18 19:58:28,683 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:28,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1857 transitions. [2022-11-18 19:58:28,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 619.0) internal successors, (1857), 3 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:28,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:28,694 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:28,694 INFO L175 Difference]: Start difference. First operand has 626 places, 631 transitions, 1272 flow. Second operand 3 states and 1857 transitions. [2022-11-18 19:58:28,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 629 transitions, 1492 flow [2022-11-18 19:58:28,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 624 places, 629 transitions, 1488 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:58:28,717 INFO L231 Difference]: Finished difference. Result has 624 places, 629 transitions, 1272 flow [2022-11-18 19:58:28,719 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1264, PETRI_DIFFERENCE_MINUEND_PLACES=622, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1272, PETRI_PLACES=624, PETRI_TRANSITIONS=629} [2022-11-18 19:58:28,720 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -45 predicate places. [2022-11-18 19:58:28,720 INFO L495 AbstractCegarLoop]: Abstraction has has 624 places, 629 transitions, 1272 flow [2022-11-18 19:58:28,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 3 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:28,721 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:28,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:58:28,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 19:58:28,722 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:58:28,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:28,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1087806325, now seen corresponding path program 1 times [2022-11-18 19:58:28,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:28,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424367306] [2022-11-18 19:58:28,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:28,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:28,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:58:28,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:28,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424367306] [2022-11-18 19:58:28,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424367306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:28,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:28,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:58:28,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972565631] [2022-11-18 19:58:28,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:28,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:58:28,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:28,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:58:28,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:58:28,842 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 681 out of 718 [2022-11-18 19:58:28,845 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 624 places, 629 transitions, 1272 flow. Second operand has 3 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:28,846 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:28,846 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 681 of 718 [2022-11-18 19:58:28,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:29,175 INFO L130 PetriNetUnfolder]: 43/1296 cut-off events. [2022-11-18 19:58:29,176 INFO L131 PetriNetUnfolder]: For 6/9 co-relation queries the response was YES. [2022-11-18 19:58:29,186 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1356 conditions, 1296 events. 43/1296 cut-off events. For 6/9 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 5176 event pairs, 15 based on Foata normal form. 0/1121 useless extension candidates. Maximal degree in co-relation 1335. Up to 45 conditions per place. [2022-11-18 19:58:29,192 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 13 selfloop transitions, 2 changer transitions 0/628 dead transitions. [2022-11-18 19:58:29,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 628 transitions, 1300 flow [2022-11-18 19:58:29,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:58:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:58:29,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2059 transitions. [2022-11-18 19:58:29,198 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9558960074280408 [2022-11-18 19:58:29,198 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2059 transitions. [2022-11-18 19:58:29,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2059 transitions. [2022-11-18 19:58:29,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:29,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2059 transitions. [2022-11-18 19:58:29,209 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 686.3333333333334) internal successors, (2059), 3 states have internal predecessors, (2059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:29,213 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:29,215 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:29,215 INFO L175 Difference]: Start difference. First operand has 624 places, 629 transitions, 1272 flow. Second operand 3 states and 2059 transitions. [2022-11-18 19:58:29,215 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 628 transitions, 1300 flow [2022-11-18 19:58:29,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 623 places, 628 transitions, 1292 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:58:29,228 INFO L231 Difference]: Finished difference. Result has 623 places, 628 transitions, 1266 flow [2022-11-18 19:58:29,230 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1262, PETRI_DIFFERENCE_MINUEND_PLACES=621, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=628, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=626, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1266, PETRI_PLACES=623, PETRI_TRANSITIONS=628} [2022-11-18 19:58:29,230 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -46 predicate places. [2022-11-18 19:58:29,230 INFO L495 AbstractCegarLoop]: Abstraction has has 623 places, 628 transitions, 1266 flow [2022-11-18 19:58:29,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:29,232 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:29,232 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:58:29,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 19:58:29,233 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:58:29,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:29,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1652689961, now seen corresponding path program 1 times [2022-11-18 19:58:29,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:29,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014715385] [2022-11-18 19:58:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:29,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:29,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:58:29,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:29,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014715385] [2022-11-18 19:58:29,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014715385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:29,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:29,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:58:29,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384680939] [2022-11-18 19:58:29,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:29,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:58:29,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:29,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:58:29,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:58:29,366 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 681 out of 718 [2022-11-18 19:58:29,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 628 transitions, 1266 flow. Second operand has 3 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:29,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:29,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 681 of 718 [2022-11-18 19:58:29,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:29,881 INFO L130 PetriNetUnfolder]: 45/1278 cut-off events. [2022-11-18 19:58:29,881 INFO L131 PetriNetUnfolder]: For 9/10 co-relation queries the response was YES. [2022-11-18 19:58:29,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1339 conditions, 1278 events. 45/1278 cut-off events. For 9/10 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 5205 event pairs, 15 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1300. Up to 48 conditions per place. [2022-11-18 19:58:29,897 INFO L137 encePairwiseOnDemand]: 715/718 looper letters, 13 selfloop transitions, 2 changer transitions 0/627 dead transitions. [2022-11-18 19:58:29,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 624 places, 627 transitions, 1294 flow [2022-11-18 19:58:29,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:58:29,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:58:29,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2059 transitions. [2022-11-18 19:58:29,903 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9558960074280408 [2022-11-18 19:58:29,903 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2059 transitions. [2022-11-18 19:58:29,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2059 transitions. [2022-11-18 19:58:29,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:29,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2059 transitions. [2022-11-18 19:58:29,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 686.3333333333334) internal successors, (2059), 3 states have internal predecessors, (2059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:29,914 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:29,916 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:29,917 INFO L175 Difference]: Start difference. First operand has 623 places, 628 transitions, 1266 flow. Second operand 3 states and 2059 transitions. [2022-11-18 19:58:29,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 624 places, 627 transitions, 1294 flow [2022-11-18 19:58:29,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 627 transitions, 1290 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:58:29,930 INFO L231 Difference]: Finished difference. Result has 622 places, 627 transitions, 1264 flow [2022-11-18 19:58:29,931 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1260, PETRI_DIFFERENCE_MINUEND_PLACES=620, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=627, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=625, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1264, PETRI_PLACES=622, PETRI_TRANSITIONS=627} [2022-11-18 19:58:29,931 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -47 predicate places. [2022-11-18 19:58:29,932 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 627 transitions, 1264 flow [2022-11-18 19:58:29,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 682.3333333333334) internal successors, (2047), 3 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:29,933 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:29,934 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:58:29,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 19:58:29,934 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:58:29,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:29,935 INFO L85 PathProgramCache]: Analyzing trace with hash 357486500, now seen corresponding path program 1 times [2022-11-18 19:58:29,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:29,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092826385] [2022-11-18 19:58:29,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:29,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:30,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:58:30,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:30,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092826385] [2022-11-18 19:58:30,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092826385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:30,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:30,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:58:30,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488283445] [2022-11-18 19:58:30,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:30,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:58:30,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:30,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:58:30,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:58:30,065 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-18 19:58:30,068 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 627 transitions, 1264 flow. Second operand has 3 states, 3 states have (on average 679.6666666666666) internal successors, (2039), 3 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:30,068 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:30,068 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-18 19:58:30,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:30,469 INFO L130 PetriNetUnfolder]: 57/1636 cut-off events. [2022-11-18 19:58:30,469 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-18 19:58:30,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1714 conditions, 1636 events. 57/1636 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 7828 event pairs, 19 based on Foata normal form. 0/1430 useless extension candidates. Maximal degree in co-relation 1676. Up to 61 conditions per place. [2022-11-18 19:58:30,486 INFO L137 encePairwiseOnDemand]: 712/718 looper letters, 15 selfloop transitions, 2 changer transitions 0/626 dead transitions. [2022-11-18 19:58:30,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 626 transitions, 1297 flow [2022-11-18 19:58:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:58:30,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:58:30,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2055 transitions. [2022-11-18 19:58:30,492 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9540389972144847 [2022-11-18 19:58:30,493 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2055 transitions. [2022-11-18 19:58:30,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2055 transitions. [2022-11-18 19:58:30,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:30,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2055 transitions. [2022-11-18 19:58:30,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 685.0) internal successors, (2055), 3 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:30,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:30,505 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:30,506 INFO L175 Difference]: Start difference. First operand has 622 places, 627 transitions, 1264 flow. Second operand 3 states and 2055 transitions. [2022-11-18 19:58:30,506 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 620 places, 626 transitions, 1297 flow [2022-11-18 19:58:30,510 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 618 places, 626 transitions, 1293 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 19:58:30,518 INFO L231 Difference]: Finished difference. Result has 619 places, 625 transitions, 1266 flow [2022-11-18 19:58:30,520 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1252, PETRI_DIFFERENCE_MINUEND_PLACES=616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1266, PETRI_PLACES=619, PETRI_TRANSITIONS=625} [2022-11-18 19:58:30,520 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -50 predicate places. [2022-11-18 19:58:30,521 INFO L495 AbstractCegarLoop]: Abstraction has has 619 places, 625 transitions, 1266 flow [2022-11-18 19:58:30,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 679.6666666666666) internal successors, (2039), 3 states have internal predecessors, (2039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:30,522 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:30,522 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:58:30,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 19:58:30,523 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:58:30,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:30,524 INFO L85 PathProgramCache]: Analyzing trace with hash -1942595200, now seen corresponding path program 1 times [2022-11-18 19:58:30,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:30,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510692824] [2022-11-18 19:58:30,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:30,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:30,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:58:30,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:30,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510692824] [2022-11-18 19:58:30,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510692824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:30,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:30,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:58:30,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476264327] [2022-11-18 19:58:30,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:30,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:58:30,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:30,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:58:30,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:58:30,641 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 678 out of 718 [2022-11-18 19:58:30,644 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 625 transitions, 1266 flow. Second operand has 3 states, 3 states have (on average 680.0) internal successors, (2040), 3 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:30,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:30,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 678 of 718 [2022-11-18 19:58:30,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:31,048 INFO L130 PetriNetUnfolder]: 57/1657 cut-off events. [2022-11-18 19:58:31,049 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 19:58:31,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 1657 events. 57/1657 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 8256 event pairs, 15 based on Foata normal form. 0/1467 useless extension candidates. Maximal degree in co-relation 1703. Up to 62 conditions per place. [2022-11-18 19:58:31,067 INFO L137 encePairwiseOnDemand]: 712/718 looper letters, 15 selfloop transitions, 2 changer transitions 0/624 dead transitions. [2022-11-18 19:58:31,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 617 places, 624 transitions, 1299 flow [2022-11-18 19:58:31,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:58:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 19:58:31,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2055 transitions. [2022-11-18 19:58:31,073 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9540389972144847 [2022-11-18 19:58:31,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2055 transitions. [2022-11-18 19:58:31,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2055 transitions. [2022-11-18 19:58:31,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:31,075 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2055 transitions. [2022-11-18 19:58:31,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 685.0) internal successors, (2055), 3 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:31,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:31,085 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 718.0) internal successors, (2872), 4 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:31,085 INFO L175 Difference]: Start difference. First operand has 619 places, 625 transitions, 1266 flow. Second operand 3 states and 2055 transitions. [2022-11-18 19:58:31,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 617 places, 624 transitions, 1299 flow [2022-11-18 19:58:31,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 624 transitions, 1299 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:58:31,110 INFO L231 Difference]: Finished difference. Result has 618 places, 623 transitions, 1272 flow [2022-11-18 19:58:31,111 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1258, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=621, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=619, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1272, PETRI_PLACES=618, PETRI_TRANSITIONS=623} [2022-11-18 19:58:31,112 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -51 predicate places. [2022-11-18 19:58:31,112 INFO L495 AbstractCegarLoop]: Abstraction has has 618 places, 623 transitions, 1272 flow [2022-11-18 19:58:31,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 680.0) internal successors, (2040), 3 states have internal predecessors, (2040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:31,113 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:31,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:58:31,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 19:58:31,114 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:58:31,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:31,115 INFO L85 PathProgramCache]: Analyzing trace with hash 512039882, now seen corresponding path program 1 times [2022-11-18 19:58:31,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:31,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912346455] [2022-11-18 19:58:31,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:31,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:31,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:31,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:58:31,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:31,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912346455] [2022-11-18 19:58:31,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912346455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:31,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:31,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:58:31,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785194618] [2022-11-18 19:58:31,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:31,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:58:31,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:31,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:58:31,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:58:31,459 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 610 out of 718 [2022-11-18 19:58:31,464 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 623 transitions, 1272 flow. Second operand has 7 states, 7 states have (on average 614.5714285714286) internal successors, (4302), 7 states have internal predecessors, (4302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:31,464 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:31,464 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 610 of 718 [2022-11-18 19:58:31,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 19:58:33,819 INFO L130 PetriNetUnfolder]: 934/8415 cut-off events. [2022-11-18 19:58:33,819 INFO L131 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2022-11-18 19:58:33,887 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10186 conditions, 8415 events. 934/8415 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 83317 event pairs, 720 based on Foata normal form. 0/7154 useless extension candidates. Maximal degree in co-relation 10144. Up to 845 conditions per place. [2022-11-18 19:58:33,921 INFO L137 encePairwiseOnDemand]: 708/718 looper letters, 162 selfloop transitions, 9 changer transitions 0/709 dead transitions. [2022-11-18 19:58:33,922 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 709 transitions, 1790 flow [2022-11-18 19:58:33,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:58:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-18 19:58:33,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 5052 transitions. [2022-11-18 19:58:33,935 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8795264623955432 [2022-11-18 19:58:33,935 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 5052 transitions. [2022-11-18 19:58:33,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 5052 transitions. [2022-11-18 19:58:33,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 19:58:33,938 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 5052 transitions. [2022-11-18 19:58:33,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 631.5) internal successors, (5052), 8 states have internal predecessors, (5052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:33,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 718.0) internal successors, (6462), 9 states have internal predecessors, (6462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:33,964 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 718.0) internal successors, (6462), 9 states have internal predecessors, (6462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:33,965 INFO L175 Difference]: Start difference. First operand has 618 places, 623 transitions, 1272 flow. Second operand 8 states and 5052 transitions. [2022-11-18 19:58:33,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 709 transitions, 1790 flow [2022-11-18 19:58:34,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 709 transitions, 1790 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 19:58:34,292 INFO L231 Difference]: Finished difference. Result has 630 places, 629 transitions, 1329 flow [2022-11-18 19:58:34,293 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=718, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=618, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=623, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=614, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1329, PETRI_PLACES=630, PETRI_TRANSITIONS=629} [2022-11-18 19:58:34,294 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -39 predicate places. [2022-11-18 19:58:34,294 INFO L495 AbstractCegarLoop]: Abstraction has has 630 places, 629 transitions, 1329 flow [2022-11-18 19:58:34,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 614.5714285714286) internal successors, (4302), 7 states have internal predecessors, (4302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:34,296 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 19:58:34,296 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:58:34,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 19:58:34,297 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 128 more)] === [2022-11-18 19:58:34,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:58:34,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1777232942, now seen corresponding path program 1 times [2022-11-18 19:58:34,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:58:34,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419270401] [2022-11-18 19:58:34,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:58:34,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:58:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:58:35,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:58:35,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:58:35,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419270401] [2022-11-18 19:58:35,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419270401] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:58:35,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:58:35,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:58:35,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392914773] [2022-11-18 19:58:35,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:58:35,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:58:35,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:58:35,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:58:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:58:35,270 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 718 [2022-11-18 19:58:35,274 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 629 transitions, 1329 flow. Second operand has 6 states, 6 states have (on average 591.5) internal successors, (3549), 6 states have internal predecessors, (3549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 19:58:35,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 19:58:35,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 718 [2022-11-18 19:58:35,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand