./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/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_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/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_281a254a-f15e-4efc-94a2-4a944492d27b/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 c870162e8691a06e8bb6a8083be9eaf3f7ddc94357fb302a6e1fdd1b7aa873f8 --- 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 21:08:54,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:08:54,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:08:54,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:08:54,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:08:54,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:08:54,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:08:54,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:08:54,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:08:54,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:08:54,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:08:54,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:08:54,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:08:54,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:08:54,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:08:54,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:08:54,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:08:54,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:08:54,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:08:54,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:08:54,543 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:08:54,544 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:08:54,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:08:54,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:08:54,550 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:08:54,550 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:08:54,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:08:54,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:08:54,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:08:54,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:08:54,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:08:54,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:08:54,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:08:54,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:08:54,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:08:54,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:08:54,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:08:54,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:08:54,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:08:54,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:08:54,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:08:54,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-18 21:08:54,606 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:08:54,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:08:54,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:08:54,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:08:54,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:08:54,612 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:08:54,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:08:54,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:08:54,613 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:08:54,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:08:54,614 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:08:54,615 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:08:54,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:08:54,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:08:54,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:08:54,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:08:54,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:08:54,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:08:54,616 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-18 21:08:54,616 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:08:54,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:08:54,617 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:08:54,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:08:54,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:08:54,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:08:54,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:08:54,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:08:54,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:08:54,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:08:54,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:08:54,621 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:08:54,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:08:54,621 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:08:54,622 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:08:54,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:08:54,622 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_281a254a-f15e-4efc-94a2-4a944492d27b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c870162e8691a06e8bb6a8083be9eaf3f7ddc94357fb302a6e1fdd1b7aa873f8 [2022-11-18 21:08:54,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:08:54,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:08:54,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:08:54,944 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:08:54,945 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:08:54,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2022-11-18 21:08:55,019 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro/data/6c7c91050/ce8852478106467fb74377aeac7f1d77/FLAG8b9a7c439 [2022-11-18 21:08:55,623 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:08:55,624 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c [2022-11-18 21:08:55,631 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro/data/6c7c91050/ce8852478106467fb74377aeac7f1d77/FLAG8b9a7c439 [2022-11-18 21:08:55,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro/data/6c7c91050/ce8852478106467fb74377aeac7f1d77 [2022-11-18 21:08:55,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:08:55,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:08:55,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:08:55,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:08:55,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:08:55,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:08:55" (1/1) ... [2022-11-18 21:08:55,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e43c726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:55, skipping insertion in model container [2022-11-18 21:08:55,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:08:55" (1/1) ... [2022-11-18 21:08:56,001 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:08:56,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:08:56,279 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_281a254a-f15e-4efc-94a2-4a944492d27b/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c[2755,2768] [2022-11-18 21:08:56,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:08:56,296 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:08:56,343 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_281a254a-f15e-4efc-94a2-4a944492d27b/sv-benchmarks/c/weaver/parallel-misc-1.wvr.c[2755,2768] [2022-11-18 21:08:56,357 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:08:56,371 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:08:56,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56 WrapperNode [2022-11-18 21:08:56,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:08:56,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:08:56,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:08:56,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:08:56,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (1/1) ... [2022-11-18 21:08:56,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (1/1) ... [2022-11-18 21:08:56,436 INFO L138 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 17, calls inlined = 31, statements flattened = 516 [2022-11-18 21:08:56,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:08:56,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:08:56,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:08:56,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:08:56,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (1/1) ... [2022-11-18 21:08:56,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (1/1) ... [2022-11-18 21:08:56,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (1/1) ... [2022-11-18 21:08:56,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (1/1) ... [2022-11-18 21:08:56,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (1/1) ... [2022-11-18 21:08:56,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (1/1) ... [2022-11-18 21:08:56,481 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (1/1) ... [2022-11-18 21:08:56,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (1/1) ... [2022-11-18 21:08:56,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:08:56,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:08:56,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:08:56,489 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:08:56,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (1/1) ... [2022-11-18 21:08:56,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:08:56,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:08:56,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:08:56,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_281a254a-f15e-4efc-94a2-4a944492d27b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:08:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:08:56,578 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-18 21:08:56,578 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-18 21:08:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-18 21:08:56,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-18 21:08:56,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:08:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:08:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 21:08:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 21:08:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:08:56,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:08:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 21:08:56,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:08:56,585 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 21:08:56,789 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:08:56,811 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:08:57,952 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:08:57,978 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:08:57,979 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-18 21:08:57,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:08:57 BoogieIcfgContainer [2022-11-18 21:08:57,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:08:57,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:08:57,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:08:57,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:08:57,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:08:55" (1/3) ... [2022-11-18 21:08:57,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5901fef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:08:57, skipping insertion in model container [2022-11-18 21:08:57,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:08:56" (2/3) ... [2022-11-18 21:08:57,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5901fef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:08:57, skipping insertion in model container [2022-11-18 21:08:57,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:08:57" (3/3) ... [2022-11-18 21:08:57,994 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-1.wvr.c [2022-11-18 21:08:58,004 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-18 21:08:58,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:08:58,017 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2022-11-18 21:08:58,017 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 21:08:58,221 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-18 21:08:58,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 688 places, 714 transitions, 1444 flow [2022-11-18 21:08:58,708 INFO L130 PetriNetUnfolder]: 33/712 cut-off events. [2022-11-18 21:08:58,708 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 21:08:58,729 INFO L83 FinitePrefix]: Finished finitePrefix Result has 721 conditions, 712 events. 33/712 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1885 event pairs, 0 based on Foata normal form. 0/604 useless extension candidates. Maximal degree in co-relation 461. Up to 2 conditions per place. [2022-11-18 21:08:58,729 INFO L82 GeneralOperation]: Start removeDead. Operand has 688 places, 714 transitions, 1444 flow [2022-11-18 21:08:58,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 669 places, 694 transitions, 1400 flow [2022-11-18 21:08:58,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:08:58,764 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;@1099b551, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:08:58,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 125 error locations. [2022-11-18 21:08:58,768 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-18 21:08:58,769 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-18 21:08:58,769 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:08:58,770 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] [2022-11-18 21:08:58,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:08:58,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:08:58,776 INFO L85 PathProgramCache]: Analyzing trace with hash 171356879, now seen corresponding path program 1 times [2022-11-18 21:08:58,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:08:58,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654270313] [2022-11-18 21:08:58,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:08:58,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:08:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:58,981 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 21:08:58,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:08:58,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654270313] [2022-11-18 21:08:58,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654270313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:08:58,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:08:58,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:08:58,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026096904] [2022-11-18 21:08:58,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:08:58,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:08:58,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:08:59,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:08:59,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:08:59,032 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 644 out of 714 [2022-11-18 21:08:59,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 669 places, 694 transitions, 1400 flow. Second operand has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 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 21:08:59,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:08:59,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 644 of 714 [2022-11-18 21:08:59,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:08:59,532 INFO L130 PetriNetUnfolder]: 32/1111 cut-off events. [2022-11-18 21:08:59,532 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-18 21:08:59,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1238 conditions, 1111 events. 32/1111 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5133 event pairs, 18 based on Foata normal form. 134/1077 useless extension candidates. Maximal degree in co-relation 972. Up to 80 conditions per place. [2022-11-18 21:08:59,551 INFO L137 encePairwiseOnDemand]: 689/714 looper letters, 43 selfloop transitions, 2 changer transitions 3/671 dead transitions. [2022-11-18 21:08:59,552 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 670 places, 671 transitions, 1444 flow [2022-11-18 21:08:59,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:08:59,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:08:59,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2000 transitions. [2022-11-18 21:08:59,581 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9337068160597572 [2022-11-18 21:08:59,582 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2000 transitions. [2022-11-18 21:08:59,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2000 transitions. [2022-11-18 21:08:59,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:08:59,591 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2000 transitions. [2022-11-18 21:08:59,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 0 states have call successors, (0), 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 21:08:59,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:08:59,616 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:08:59,619 INFO L175 Difference]: Start difference. First operand has 669 places, 694 transitions, 1400 flow. Second operand 3 states and 2000 transitions. [2022-11-18 21:08:59,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 670 places, 671 transitions, 1444 flow [2022-11-18 21:08:59,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 666 places, 671 transitions, 1436 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-18 21:08:59,652 INFO L231 Difference]: Finished difference. Result has 666 places, 668 transitions, 1344 flow [2022-11-18 21:08:59,655 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1346, PETRI_DIFFERENCE_MINUEND_PLACES=664, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=669, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1344, PETRI_PLACES=666, PETRI_TRANSITIONS=668} [2022-11-18 21:08:59,660 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -3 predicate places. [2022-11-18 21:08:59,660 INFO L495 AbstractCegarLoop]: Abstraction has has 666 places, 668 transitions, 1344 flow [2022-11-18 21:08:59,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 645.3333333333334) internal successors, (1936), 3 states have internal predecessors, (1936), 0 states have call successors, (0), 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 21:08:59,662 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:08:59,663 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] [2022-11-18 21:08:59,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:08:59,664 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:08:59,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:08:59,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1085612204, now seen corresponding path program 1 times [2022-11-18 21:08:59,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:08:59,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645561073] [2022-11-18 21:08:59,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:08:59,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:08:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:08:59,775 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 21:08:59,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:08:59,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645561073] [2022-11-18 21:08:59,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645561073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:08:59,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:08:59,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:08:59,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328854359] [2022-11-18 21:08:59,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:08:59,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:08:59,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:08:59,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:08:59,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:08:59,784 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-11-18 21:08:59,787 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 666 places, 668 transitions, 1344 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 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 21:08:59,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:08:59,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-11-18 21:08:59,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:00,195 INFO L130 PetriNetUnfolder]: 30/886 cut-off events. [2022-11-18 21:09:00,195 INFO L131 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2022-11-18 21:09:00,205 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 886 events. 30/886 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3810 event pairs, 18 based on Foata normal form. 0/752 useless extension candidates. Maximal degree in co-relation 922. Up to 65 conditions per place. [2022-11-18 21:09:00,210 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/667 dead transitions. [2022-11-18 21:09:00,211 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 664 places, 667 transitions, 1402 flow [2022-11-18 21:09:00,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:00,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:00,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-11-18 21:09:00,216 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-11-18 21:09:00,216 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-11-18 21:09:00,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-11-18 21:09:00,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:00,217 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-11-18 21:09:00,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 0 states have call successors, (0), 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 21:09:00,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:00,228 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:00,229 INFO L175 Difference]: Start difference. First operand has 666 places, 668 transitions, 1344 flow. Second operand 3 states and 2008 transitions. [2022-11-18 21:09:00,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 664 places, 667 transitions, 1402 flow [2022-11-18 21:09:00,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 662 places, 667 transitions, 1398 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:09:00,240 INFO L231 Difference]: Finished difference. Result has 662 places, 667 transitions, 1342 flow [2022-11-18 21:09:00,242 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1338, PETRI_DIFFERENCE_MINUEND_PLACES=660, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=665, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1342, PETRI_PLACES=662, PETRI_TRANSITIONS=667} [2022-11-18 21:09:00,243 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -7 predicate places. [2022-11-18 21:09:00,243 INFO L495 AbstractCegarLoop]: Abstraction has has 662 places, 667 transitions, 1342 flow [2022-11-18 21:09:00,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 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 21:09:00,244 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:00,245 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] [2022-11-18 21:09:00,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:09:00,245 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:00,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:00,246 INFO L85 PathProgramCache]: Analyzing trace with hash 599700731, now seen corresponding path program 1 times [2022-11-18 21:09:00,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:00,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489761359] [2022-11-18 21:09:00,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:00,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:00,301 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 21:09:00,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:00,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489761359] [2022-11-18 21:09:00,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489761359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:00,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:00,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:00,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292330957] [2022-11-18 21:09:00,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:00,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:00,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:00,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:00,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:00,306 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 714 [2022-11-18 21:09:00,309 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 662 places, 667 transitions, 1342 flow. Second operand has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 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 21:09:00,309 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:00,309 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 714 [2022-11-18 21:09:00,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:00,559 INFO L130 PetriNetUnfolder]: 17/1015 cut-off events. [2022-11-18 21:09:00,559 INFO L131 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2022-11-18 21:09:00,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1043 conditions, 1015 events. 17/1015 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3893 event pairs, 3 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 999. Up to 17 conditions per place. [2022-11-18 21:09:00,576 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 10 selfloop transitions, 2 changer transitions 0/666 dead transitions. [2022-11-18 21:09:00,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 663 places, 666 transitions, 1364 flow [2022-11-18 21:09:00,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:00,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:00,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2044 transitions. [2022-11-18 21:09:00,582 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.954248366013072 [2022-11-18 21:09:00,582 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2044 transitions. [2022-11-18 21:09:00,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2044 transitions. [2022-11-18 21:09:00,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:00,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2044 transitions. [2022-11-18 21:09:00,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 0 states have call successors, (0), 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 21:09:00,595 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:00,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:00,597 INFO L175 Difference]: Start difference. First operand has 662 places, 667 transitions, 1342 flow. Second operand 3 states and 2044 transitions. [2022-11-18 21:09:00,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 663 places, 666 transitions, 1364 flow [2022-11-18 21:09:00,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 661 places, 666 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:09:00,614 INFO L231 Difference]: Finished difference. Result has 661 places, 666 transitions, 1340 flow [2022-11-18 21:09:00,615 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1336, PETRI_DIFFERENCE_MINUEND_PLACES=659, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=666, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=664, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1340, PETRI_PLACES=661, PETRI_TRANSITIONS=666} [2022-11-18 21:09:00,618 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -8 predicate places. [2022-11-18 21:09:00,618 INFO L495 AbstractCegarLoop]: Abstraction has has 661 places, 666 transitions, 1340 flow [2022-11-18 21:09:00,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 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 21:09:00,620 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:00,620 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 21:09:00,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:09:00,620 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:00,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:00,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1528557180, now seen corresponding path program 1 times [2022-11-18 21:09:00,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:00,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718084384] [2022-11-18 21:09:00,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:00,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:00,725 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 21:09:00,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:00,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718084384] [2022-11-18 21:09:00,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718084384] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:00,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:00,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:00,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124025482] [2022-11-18 21:09:00,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:00,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:00,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:00,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:00,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:00,730 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 677 out of 714 [2022-11-18 21:09:00,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 661 places, 666 transitions, 1340 flow. Second operand has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 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 21:09:00,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:00,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 677 of 714 [2022-11-18 21:09:00,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:00,941 INFO L130 PetriNetUnfolder]: 15/801 cut-off events. [2022-11-18 21:09:00,941 INFO L131 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2022-11-18 21:09:00,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 801 events. 15/801 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2488 event pairs, 3 based on Foata normal form. 0/684 useless extension candidates. Maximal degree in co-relation 775. Up to 17 conditions per place. [2022-11-18 21:09:00,962 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 10 selfloop transitions, 2 changer transitions 0/665 dead transitions. [2022-11-18 21:09:00,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 662 places, 665 transitions, 1362 flow [2022-11-18 21:09:00,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:00,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:00,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2044 transitions. [2022-11-18 21:09:00,967 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.954248366013072 [2022-11-18 21:09:00,967 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2044 transitions. [2022-11-18 21:09:00,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2044 transitions. [2022-11-18 21:09:00,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:00,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2044 transitions. [2022-11-18 21:09:00,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 681.3333333333334) internal successors, (2044), 3 states have internal predecessors, (2044), 0 states have call successors, (0), 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 21:09:00,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:00,985 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:00,985 INFO L175 Difference]: Start difference. First operand has 661 places, 666 transitions, 1340 flow. Second operand 3 states and 2044 transitions. [2022-11-18 21:09:00,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 662 places, 665 transitions, 1362 flow [2022-11-18 21:09:00,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 660 places, 665 transitions, 1358 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:09:00,998 INFO L231 Difference]: Finished difference. Result has 660 places, 665 transitions, 1338 flow [2022-11-18 21:09:00,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1334, PETRI_DIFFERENCE_MINUEND_PLACES=658, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=663, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1338, PETRI_PLACES=660, PETRI_TRANSITIONS=665} [2022-11-18 21:09:01,002 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -9 predicate places. [2022-11-18 21:09:01,002 INFO L495 AbstractCegarLoop]: Abstraction has has 660 places, 665 transitions, 1338 flow [2022-11-18 21:09:01,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 678.3333333333334) internal successors, (2035), 3 states have internal predecessors, (2035), 0 states have call successors, (0), 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 21:09:01,004 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:01,004 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] [2022-11-18 21:09:01,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:09:01,005 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:01,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:01,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2135018873, now seen corresponding path program 1 times [2022-11-18 21:09:01,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:01,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698951707] [2022-11-18 21:09:01,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:01,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:01,095 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 21:09:01,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:01,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698951707] [2022-11-18 21:09:01,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698951707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:01,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:01,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:01,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703030090] [2022-11-18 21:09:01,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:01,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:01,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:01,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:01,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:01,102 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-18 21:09:01,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 660 places, 665 transitions, 1338 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:01,106 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:01,106 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-18 21:09:01,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:01,414 INFO L130 PetriNetUnfolder]: 25/1004 cut-off events. [2022-11-18 21:09:01,415 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 21:09:01,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1074 conditions, 1004 events. 25/1004 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 3770 event pairs, 12 based on Foata normal form. 0/857 useless extension candidates. Maximal degree in co-relation 1016. Up to 50 conditions per place. [2022-11-18 21:09:01,432 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 25 selfloop transitions, 2 changer transitions 0/664 dead transitions. [2022-11-18 21:09:01,433 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 661 places, 664 transitions, 1390 flow [2022-11-18 21:09:01,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:01,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:01,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2014 transitions. [2022-11-18 21:09:01,439 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9402427637721755 [2022-11-18 21:09:01,439 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2014 transitions. [2022-11-18 21:09:01,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2014 transitions. [2022-11-18 21:09:01,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:01,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2014 transitions. [2022-11-18 21:09:01,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.3333333333334) internal successors, (2014), 3 states have internal predecessors, (2014), 0 states have call successors, (0), 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 21:09:01,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:01,454 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:01,455 INFO L175 Difference]: Start difference. First operand has 660 places, 665 transitions, 1338 flow. Second operand 3 states and 2014 transitions. [2022-11-18 21:09:01,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 661 places, 664 transitions, 1390 flow [2022-11-18 21:09:01,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 659 places, 664 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:09:01,470 INFO L231 Difference]: Finished difference. Result has 659 places, 664 transitions, 1336 flow [2022-11-18 21:09:01,471 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1332, PETRI_DIFFERENCE_MINUEND_PLACES=657, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=664, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=662, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1336, PETRI_PLACES=659, PETRI_TRANSITIONS=664} [2022-11-18 21:09:01,475 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -10 predicate places. [2022-11-18 21:09:01,476 INFO L495 AbstractCegarLoop]: Abstraction has has 659 places, 664 transitions, 1336 flow [2022-11-18 21:09:01,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:01,478 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:01,478 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] [2022-11-18 21:09:01,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:09:01,484 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:01,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:01,486 INFO L85 PathProgramCache]: Analyzing trace with hash -329285521, now seen corresponding path program 1 times [2022-11-18 21:09:01,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:01,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693825621] [2022-11-18 21:09:01,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:01,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:01,559 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 21:09:01,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:01,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693825621] [2022-11-18 21:09:01,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693825621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:01,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:01,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:01,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793862394] [2022-11-18 21:09:01,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:01,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:01,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:01,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:01,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:01,565 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-18 21:09:01,568 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 659 places, 664 transitions, 1336 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:01,569 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:01,569 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-18 21:09:01,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:01,823 INFO L130 PetriNetUnfolder]: 23/790 cut-off events. [2022-11-18 21:09:01,823 INFO L131 PetriNetUnfolder]: For 14/15 co-relation queries the response was YES. [2022-11-18 21:09:01,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 847 conditions, 790 events. 23/790 cut-off events. For 14/15 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2891 event pairs, 12 based on Foata normal form. 0/676 useless extension candidates. Maximal degree in co-relation 782. Up to 49 conditions per place. [2022-11-18 21:09:01,839 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 24 selfloop transitions, 2 changer transitions 0/663 dead transitions. [2022-11-18 21:09:01,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 660 places, 663 transitions, 1386 flow [2022-11-18 21:09:01,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:01,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:01,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2013 transitions. [2022-11-18 21:09:01,844 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9397759103641457 [2022-11-18 21:09:01,844 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2013 transitions. [2022-11-18 21:09:01,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2013 transitions. [2022-11-18 21:09:01,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:01,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2013 transitions. [2022-11-18 21:09:01,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.0) internal successors, (2013), 3 states have internal predecessors, (2013), 0 states have call successors, (0), 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 21:09:01,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:01,857 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:01,857 INFO L175 Difference]: Start difference. First operand has 659 places, 664 transitions, 1336 flow. Second operand 3 states and 2013 transitions. [2022-11-18 21:09:01,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 660 places, 663 transitions, 1386 flow [2022-11-18 21:09:01,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 658 places, 663 transitions, 1382 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:09:01,870 INFO L231 Difference]: Finished difference. Result has 658 places, 663 transitions, 1334 flow [2022-11-18 21:09:01,871 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1330, PETRI_DIFFERENCE_MINUEND_PLACES=656, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=663, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=661, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1334, PETRI_PLACES=658, PETRI_TRANSITIONS=663} [2022-11-18 21:09:01,872 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -11 predicate places. [2022-11-18 21:09:01,872 INFO L495 AbstractCegarLoop]: Abstraction has has 658 places, 663 transitions, 1334 flow [2022-11-18 21:09:01,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:01,874 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:01,874 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] [2022-11-18 21:09:01,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:09:01,875 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:01,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:01,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1869105417, now seen corresponding path program 1 times [2022-11-18 21:09:01,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:01,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890565062] [2022-11-18 21:09:01,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:01,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:01,918 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 21:09:01,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:01,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890565062] [2022-11-18 21:09:01,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890565062] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:01,919 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:01,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:01,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821779748] [2022-11-18 21:09:01,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:01,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:01,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:01,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:01,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:01,923 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-11-18 21:09:01,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 658 places, 663 transitions, 1334 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 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 21:09:01,926 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:01,926 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-11-18 21:09:01,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:02,163 INFO L130 PetriNetUnfolder]: 30/892 cut-off events. [2022-11-18 21:09:02,164 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 21:09:02,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 983 conditions, 892 events. 30/892 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 3529 event pairs, 18 based on Foata normal form. 0/762 useless extension candidates. Maximal degree in co-relation 911. Up to 65 conditions per place. [2022-11-18 21:09:02,179 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/662 dead transitions. [2022-11-18 21:09:02,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 659 places, 662 transitions, 1392 flow [2022-11-18 21:09:02,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:02,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-11-18 21:09:02,184 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-11-18 21:09:02,185 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-11-18 21:09:02,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-11-18 21:09:02,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:02,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-11-18 21:09:02,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 0 states have call successors, (0), 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 21:09:02,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:02,203 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:02,204 INFO L175 Difference]: Start difference. First operand has 658 places, 663 transitions, 1334 flow. Second operand 3 states and 2008 transitions. [2022-11-18 21:09:02,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 659 places, 662 transitions, 1392 flow [2022-11-18 21:09:02,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 657 places, 662 transitions, 1388 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:09:02,216 INFO L231 Difference]: Finished difference. Result has 657 places, 662 transitions, 1332 flow [2022-11-18 21:09:02,217 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1328, PETRI_DIFFERENCE_MINUEND_PLACES=655, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=662, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=660, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1332, PETRI_PLACES=657, PETRI_TRANSITIONS=662} [2022-11-18 21:09:02,218 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -12 predicate places. [2022-11-18 21:09:02,219 INFO L495 AbstractCegarLoop]: Abstraction has has 657 places, 662 transitions, 1332 flow [2022-11-18 21:09:02,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 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 21:09:02,220 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:02,220 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] [2022-11-18 21:09:02,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:09:02,220 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:02,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:02,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1091937378, now seen corresponding path program 1 times [2022-11-18 21:09:02,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:02,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567821272] [2022-11-18 21:09:02,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:02,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:02,302 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 21:09:02,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:02,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567821272] [2022-11-18 21:09:02,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567821272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:02,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:02,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:02,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754022820] [2022-11-18 21:09:02,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:02,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:02,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:02,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:02,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:02,312 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 659 out of 714 [2022-11-18 21:09:02,314 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 662 transitions, 1332 flow. Second operand has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 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 21:09:02,315 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:02,315 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 659 of 714 [2022-11-18 21:09:02,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:02,569 INFO L130 PetriNetUnfolder]: 30/891 cut-off events. [2022-11-18 21:09:02,569 INFO L131 PetriNetUnfolder]: For 20/21 co-relation queries the response was YES. [2022-11-18 21:09:02,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 964 conditions, 891 events. 30/891 cut-off events. For 20/21 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3906 event pairs, 18 based on Foata normal form. 0/759 useless extension candidates. Maximal degree in co-relation 885. Up to 65 conditions per place. [2022-11-18 21:09:02,585 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 28 selfloop transitions, 2 changer transitions 0/661 dead transitions. [2022-11-18 21:09:02,586 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 658 places, 661 transitions, 1390 flow [2022-11-18 21:09:02,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:02,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:02,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2008 transitions. [2022-11-18 21:09:02,592 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9374416433239963 [2022-11-18 21:09:02,592 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2008 transitions. [2022-11-18 21:09:02,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2008 transitions. [2022-11-18 21:09:02,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:02,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2008 transitions. [2022-11-18 21:09:02,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 669.3333333333334) internal successors, (2008), 3 states have internal predecessors, (2008), 0 states have call successors, (0), 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 21:09:02,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:02,602 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:02,602 INFO L175 Difference]: Start difference. First operand has 657 places, 662 transitions, 1332 flow. Second operand 3 states and 2008 transitions. [2022-11-18 21:09:02,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 658 places, 661 transitions, 1390 flow [2022-11-18 21:09:02,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 656 places, 661 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:09:02,614 INFO L231 Difference]: Finished difference. Result has 656 places, 661 transitions, 1330 flow [2022-11-18 21:09:02,615 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=654, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=659, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1330, PETRI_PLACES=656, PETRI_TRANSITIONS=661} [2022-11-18 21:09:02,617 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -13 predicate places. [2022-11-18 21:09:02,618 INFO L495 AbstractCegarLoop]: Abstraction has has 656 places, 661 transitions, 1330 flow [2022-11-18 21:09:02,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 660.3333333333334) internal successors, (1981), 3 states have internal predecessors, (1981), 0 states have call successors, (0), 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 21:09:02,619 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:02,619 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] [2022-11-18 21:09:02,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:09:02,620 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:02,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1753290550, now seen corresponding path program 1 times [2022-11-18 21:09:02,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:02,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918286644] [2022-11-18 21:09:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:02,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:02,696 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 21:09:02,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:02,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918286644] [2022-11-18 21:09:02,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918286644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:02,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:02,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:02,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197655131] [2022-11-18 21:09:02,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:02,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:02,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:02,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:02,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:02,701 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 671 out of 714 [2022-11-18 21:09:02,703 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 656 places, 661 transitions, 1330 flow. Second operand has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 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 21:09:02,703 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:02,704 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 671 of 714 [2022-11-18 21:09:02,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:03,094 INFO L130 PetriNetUnfolder]: 37/1934 cut-off events. [2022-11-18 21:09:03,095 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 21:09:03,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1992 conditions, 1934 events. 37/1934 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 11957 event pairs, 15 based on Foata normal form. 0/1637 useless extension candidates. Maximal degree in co-relation 1906. Up to 47 conditions per place. [2022-11-18 21:09:03,120 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 16 selfloop transitions, 2 changer transitions 0/660 dead transitions. [2022-11-18 21:09:03,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 660 transitions, 1364 flow [2022-11-18 21:09:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:03,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:03,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2032 transitions. [2022-11-18 21:09:03,129 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9486461251167133 [2022-11-18 21:09:03,129 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2032 transitions. [2022-11-18 21:09:03,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2032 transitions. [2022-11-18 21:09:03,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:03,131 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2032 transitions. [2022-11-18 21:09:03,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 677.3333333333334) internal successors, (2032), 3 states have internal predecessors, (2032), 0 states have call successors, (0), 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 21:09:03,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:03,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:03,150 INFO L175 Difference]: Start difference. First operand has 656 places, 661 transitions, 1330 flow. Second operand 3 states and 2032 transitions. [2022-11-18 21:09:03,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 657 places, 660 transitions, 1364 flow [2022-11-18 21:09:03,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 655 places, 660 transitions, 1360 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:09:03,163 INFO L231 Difference]: Finished difference. Result has 655 places, 660 transitions, 1328 flow [2022-11-18 21:09:03,165 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1324, PETRI_DIFFERENCE_MINUEND_PLACES=653, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=660, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=658, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1328, PETRI_PLACES=655, PETRI_TRANSITIONS=660} [2022-11-18 21:09:03,166 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -14 predicate places. [2022-11-18 21:09:03,166 INFO L495 AbstractCegarLoop]: Abstraction has has 655 places, 660 transitions, 1328 flow [2022-11-18 21:09:03,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 672.3333333333334) internal successors, (2017), 3 states have internal predecessors, (2017), 0 states have call successors, (0), 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 21:09:03,167 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:03,167 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 21:09:03,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:09:03,168 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:03,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:03,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1991054900, now seen corresponding path program 1 times [2022-11-18 21:09:03,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:03,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551512536] [2022-11-18 21:09:03,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:03,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:03,232 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 21:09:03,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:03,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551512536] [2022-11-18 21:09:03,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551512536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:03,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:03,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:03,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997916741] [2022-11-18 21:09:03,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:03,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:03,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:03,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:03,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:03,245 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 674 out of 714 [2022-11-18 21:09:03,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 655 places, 660 transitions, 1328 flow. Second operand has 3 states, 3 states have (on average 675.3333333333334) internal successors, (2026), 3 states have internal predecessors, (2026), 0 states have call successors, (0), 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 21:09:03,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:03,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 674 of 714 [2022-11-18 21:09:03,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:03,609 INFO L130 PetriNetUnfolder]: 28/1711 cut-off events. [2022-11-18 21:09:03,609 INFO L131 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-11-18 21:09:03,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1748 conditions, 1711 events. 28/1711 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 9769 event pairs, 8 based on Foata normal form. 0/1459 useless extension candidates. Maximal degree in co-relation 1654. Up to 26 conditions per place. [2022-11-18 21:09:03,628 INFO L137 encePairwiseOnDemand]: 710/714 looper letters, 11 selfloop transitions, 1 changer transitions 0/657 dead transitions. [2022-11-18 21:09:03,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 654 places, 657 transitions, 1346 flow [2022-11-18 21:09:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:03,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:03,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2037 transitions. [2022-11-18 21:09:03,633 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9509803921568627 [2022-11-18 21:09:03,633 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2037 transitions. [2022-11-18 21:09:03,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2037 transitions. [2022-11-18 21:09:03,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:03,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2037 transitions. [2022-11-18 21:09:03,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 679.0) internal successors, (2037), 3 states have internal predecessors, (2037), 0 states have call successors, (0), 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 21:09:03,643 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:03,644 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:03,645 INFO L175 Difference]: Start difference. First operand has 655 places, 660 transitions, 1328 flow. Second operand 3 states and 2037 transitions. [2022-11-18 21:09:03,645 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 654 places, 657 transitions, 1346 flow [2022-11-18 21:09:03,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 657 transitions, 1342 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:09:03,657 INFO L231 Difference]: Finished difference. Result has 652 places, 657 transitions, 1320 flow [2022-11-18 21:09:03,659 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=650, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=657, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=656, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1320, PETRI_PLACES=652, PETRI_TRANSITIONS=657} [2022-11-18 21:09:03,660 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -17 predicate places. [2022-11-18 21:09:03,660 INFO L495 AbstractCegarLoop]: Abstraction has has 652 places, 657 transitions, 1320 flow [2022-11-18 21:09:03,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 675.3333333333334) internal successors, (2026), 3 states have internal predecessors, (2026), 0 states have call successors, (0), 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 21:09:03,661 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:03,661 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] [2022-11-18 21:09:03,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:09:03,661 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:03,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:03,662 INFO L85 PathProgramCache]: Analyzing trace with hash -54881781, now seen corresponding path program 1 times [2022-11-18 21:09:03,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:03,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197016014] [2022-11-18 21:09:03,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:03,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:03,749 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 21:09:03,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:03,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197016014] [2022-11-18 21:09:03,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197016014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:03,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:03,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:03,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837891267] [2022-11-18 21:09:03,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:03,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:03,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:03,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:03,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:03,754 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-18 21:09:03,756 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 657 transitions, 1320 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:03,757 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:03,757 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-18 21:09:03,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:04,389 INFO L130 PetriNetUnfolder]: 141/2668 cut-off events. [2022-11-18 21:09:04,389 INFO L131 PetriNetUnfolder]: For 11/12 co-relation queries the response was YES. [2022-11-18 21:09:04,406 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2908 conditions, 2668 events. 141/2668 cut-off events. For 11/12 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 18778 event pairs, 99 based on Foata normal form. 0/2235 useless extension candidates. Maximal degree in co-relation 2815. Up to 224 conditions per place. [2022-11-18 21:09:04,416 INFO L137 encePairwiseOnDemand]: 711/714 looper letters, 25 selfloop transitions, 2 changer transitions 0/656 dead transitions. [2022-11-18 21:09:04,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 653 places, 656 transitions, 1372 flow [2022-11-18 21:09:04,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:04,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:04,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2014 transitions. [2022-11-18 21:09:04,421 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9402427637721755 [2022-11-18 21:09:04,421 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2014 transitions. [2022-11-18 21:09:04,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2014 transitions. [2022-11-18 21:09:04,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:04,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2014 transitions. [2022-11-18 21:09:04,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.3333333333334) internal successors, (2014), 3 states have internal predecessors, (2014), 0 states have call successors, (0), 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 21:09:04,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:04,432 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:04,433 INFO L175 Difference]: Start difference. First operand has 652 places, 657 transitions, 1320 flow. Second operand 3 states and 2014 transitions. [2022-11-18 21:09:04,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 653 places, 656 transitions, 1372 flow [2022-11-18 21:09:04,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 652 places, 656 transitions, 1371 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:09:04,443 INFO L231 Difference]: Finished difference. Result has 652 places, 656 transitions, 1321 flow [2022-11-18 21:09:04,445 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1317, PETRI_DIFFERENCE_MINUEND_PLACES=650, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=656, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=654, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1321, PETRI_PLACES=652, PETRI_TRANSITIONS=656} [2022-11-18 21:09:04,445 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -17 predicate places. [2022-11-18 21:09:04,445 INFO L495 AbstractCegarLoop]: Abstraction has has 652 places, 656 transitions, 1321 flow [2022-11-18 21:09:04,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:04,446 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:04,447 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:09:04,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:09:04,447 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:04,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:04,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1243720631, now seen corresponding path program 1 times [2022-11-18 21:09:04,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:04,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840022807] [2022-11-18 21:09:04,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:04,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:04,955 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 21:09:04,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:04,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840022807] [2022-11-18 21:09:04,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840022807] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:04,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:04,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:09:04,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066077997] [2022-11-18 21:09:04,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:04,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:09:04,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:04,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:09:04,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:09:04,961 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 714 [2022-11-18 21:09:04,965 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 652 places, 656 transitions, 1321 flow. Second operand has 6 states, 6 states have (on average 622.8333333333334) internal successors, (3737), 6 states have internal predecessors, (3737), 0 states have call successors, (0), 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 21:09:04,965 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:04,966 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 714 [2022-11-18 21:09:04,966 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:09,924 INFO L130 PetriNetUnfolder]: 4986/24312 cut-off events. [2022-11-18 21:09:09,924 INFO L131 PetriNetUnfolder]: For 19/112 co-relation queries the response was YES. [2022-11-18 21:09:10,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31606 conditions, 24312 events. 4986/24312 cut-off events. For 19/112 co-relation queries the response was YES. Maximal size of possible extension queue 403. Compared 282684 event pairs, 4572 based on Foata normal form. 0/20399 useless extension candidates. Maximal degree in co-relation 31514. Up to 7264 conditions per place. [2022-11-18 21:09:10,126 INFO L137 encePairwiseOnDemand]: 708/714 looper letters, 63 selfloop transitions, 5 changer transitions 0/655 dead transitions. [2022-11-18 21:09:10,127 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 656 places, 655 transitions, 1455 flow [2022-11-18 21:09:10,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:09:10,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:09:10,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3795 transitions. [2022-11-18 21:09:10,135 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8858543417366946 [2022-11-18 21:09:10,135 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3795 transitions. [2022-11-18 21:09:10,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3795 transitions. [2022-11-18 21:09:10,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:10,138 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3795 transitions. [2022-11-18 21:09:10,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 632.5) internal successors, (3795), 6 states have internal predecessors, (3795), 0 states have call successors, (0), 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 21:09:10,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 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 21:09:10,156 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 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 21:09:10,156 INFO L175 Difference]: Start difference. First operand has 652 places, 656 transitions, 1321 flow. Second operand 6 states and 3795 transitions. [2022-11-18 21:09:10,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 656 places, 655 transitions, 1455 flow [2022-11-18 21:09:10,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 654 places, 655 transitions, 1451 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-18 21:09:10,168 INFO L231 Difference]: Finished difference. Result has 654 places, 655 transitions, 1325 flow [2022-11-18 21:09:10,169 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1315, PETRI_DIFFERENCE_MINUEND_PLACES=649, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=655, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=650, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1325, PETRI_PLACES=654, PETRI_TRANSITIONS=655} [2022-11-18 21:09:10,170 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -15 predicate places. [2022-11-18 21:09:10,170 INFO L495 AbstractCegarLoop]: Abstraction has has 654 places, 655 transitions, 1325 flow [2022-11-18 21:09:10,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 622.8333333333334) internal successors, (3737), 6 states have internal predecessors, (3737), 0 states have call successors, (0), 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 21:09:10,173 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:10,173 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] [2022-11-18 21:09:10,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 21:09:10,173 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:10,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:10,174 INFO L85 PathProgramCache]: Analyzing trace with hash 478978750, now seen corresponding path program 1 times [2022-11-18 21:09:10,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:10,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959719099] [2022-11-18 21:09:10,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:10,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:10,229 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 21:09:10,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:10,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959719099] [2022-11-18 21:09:10,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959719099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:10,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:10,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:10,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862988313] [2022-11-18 21:09:10,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:10,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:10,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:10,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:10,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:10,237 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 647 out of 714 [2022-11-18 21:09:10,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 654 places, 655 transitions, 1325 flow. Second operand has 3 states, 3 states have (on average 648.3333333333334) internal successors, (1945), 3 states have internal predecessors, (1945), 0 states have call successors, (0), 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 21:09:10,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:10,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 647 of 714 [2022-11-18 21:09:10,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:10,678 INFO L130 PetriNetUnfolder]: 30/1100 cut-off events. [2022-11-18 21:09:10,678 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-18 21:09:10,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1189 conditions, 1100 events. 30/1100 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 5110 event pairs, 8 based on Foata normal form. 0/957 useless extension candidates. Maximal degree in co-relation 1171. Up to 44 conditions per place. [2022-11-18 21:09:10,696 INFO L137 encePairwiseOnDemand]: 699/714 looper letters, 30 selfloop transitions, 5 changer transitions 0/648 dead transitions. [2022-11-18 21:09:10,696 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 648 transitions, 1382 flow [2022-11-18 21:09:10,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:10,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:10,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1986 transitions. [2022-11-18 21:09:10,701 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.927170868347339 [2022-11-18 21:09:10,701 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1986 transitions. [2022-11-18 21:09:10,702 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1986 transitions. [2022-11-18 21:09:10,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:10,703 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1986 transitions. [2022-11-18 21:09:10,708 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 662.0) internal successors, (1986), 3 states have internal predecessors, (1986), 0 states have call successors, (0), 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 21:09:10,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:10,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:10,714 INFO L175 Difference]: Start difference. First operand has 654 places, 655 transitions, 1325 flow. Second operand 3 states and 1986 transitions. [2022-11-18 21:09:10,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 648 transitions, 1382 flow [2022-11-18 21:09:10,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 641 places, 648 transitions, 1372 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-18 21:09:10,731 INFO L231 Difference]: Finished difference. Result has 642 places, 647 transitions, 1318 flow [2022-11-18 21:09:10,732 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1295, PETRI_DIFFERENCE_MINUEND_PLACES=639, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=645, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=640, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1318, PETRI_PLACES=642, PETRI_TRANSITIONS=647} [2022-11-18 21:09:10,733 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -27 predicate places. [2022-11-18 21:09:10,734 INFO L495 AbstractCegarLoop]: Abstraction has has 642 places, 647 transitions, 1318 flow [2022-11-18 21:09:10,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 648.3333333333334) internal successors, (1945), 3 states have internal predecessors, (1945), 0 states have call successors, (0), 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 21:09:10,735 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:10,735 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] [2022-11-18 21:09:10,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 21:09:10,735 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:10,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:10,736 INFO L85 PathProgramCache]: Analyzing trace with hash 737121131, now seen corresponding path program 1 times [2022-11-18 21:09:10,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:10,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500676027] [2022-11-18 21:09:10,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:10,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:10,786 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 21:09:10,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:10,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500676027] [2022-11-18 21:09:10,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500676027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:10,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:10,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:10,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052365948] [2022-11-18 21:09:10,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:10,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:10,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:10,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:10,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:10,791 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-18 21:09:10,793 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 642 places, 647 transitions, 1318 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:10,794 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:10,794 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-18 21:09:10,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:11,017 INFO L130 PetriNetUnfolder]: 29/887 cut-off events. [2022-11-18 21:09:11,017 INFO L131 PetriNetUnfolder]: For 18/19 co-relation queries the response was YES. [2022-11-18 21:09:11,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 957 conditions, 887 events. 29/887 cut-off events. For 18/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3657 event pairs, 8 based on Foata normal form. 0/777 useless extension candidates. Maximal degree in co-relation 863. Up to 34 conditions per place. [2022-11-18 21:09:11,033 INFO L137 encePairwiseOnDemand]: 704/714 looper letters, 20 selfloop transitions, 5 changer transitions 0/645 dead transitions. [2022-11-18 21:09:11,033 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 639 places, 645 transitions, 1365 flow [2022-11-18 21:09:11,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:11,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:11,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-11-18 21:09:11,038 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-11-18 21:09:11,039 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-11-18 21:09:11,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-11-18 21:09:11,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:11,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-11-18 21:09:11,045 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 21:09:11,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:11,050 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:11,050 INFO L175 Difference]: Start difference. First operand has 642 places, 647 transitions, 1318 flow. Second operand 3 states and 2016 transitions. [2022-11-18 21:09:11,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 639 places, 645 transitions, 1365 flow [2022-11-18 21:09:11,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 638 places, 645 transitions, 1360 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:09:11,063 INFO L231 Difference]: Finished difference. Result has 639 places, 644 transitions, 1326 flow [2022-11-18 21:09:11,064 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1303, PETRI_DIFFERENCE_MINUEND_PLACES=636, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=642, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=637, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1326, PETRI_PLACES=639, PETRI_TRANSITIONS=644} [2022-11-18 21:09:11,065 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -30 predicate places. [2022-11-18 21:09:11,065 INFO L495 AbstractCegarLoop]: Abstraction has has 639 places, 644 transitions, 1326 flow [2022-11-18 21:09:11,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:11,066 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:11,066 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] [2022-11-18 21:09:11,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 21:09:11,067 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:11,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:11,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2142126907, now seen corresponding path program 1 times [2022-11-18 21:09:11,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:11,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680189908] [2022-11-18 21:09:11,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:11,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:11,114 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 21:09:11,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:11,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680189908] [2022-11-18 21:09:11,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680189908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:11,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:11,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:11,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579815829] [2022-11-18 21:09:11,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:11,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:11,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:11,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:11,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:11,118 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-11-18 21:09:11,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 639 places, 644 transitions, 1326 flow. Second operand has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 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 21:09:11,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:11,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-11-18 21:09:11,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:11,592 INFO L130 PetriNetUnfolder]: 44/1518 cut-off events. [2022-11-18 21:09:11,593 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-18 21:09:11,608 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1636 conditions, 1518 events. 44/1518 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 6711 event pairs, 6 based on Foata normal form. 0/1323 useless extension candidates. Maximal degree in co-relation 1541. Up to 32 conditions per place. [2022-11-18 21:09:11,617 INFO L137 encePairwiseOnDemand]: 704/714 looper letters, 18 selfloop transitions, 6 changer transitions 0/644 dead transitions. [2022-11-18 21:09:11,617 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 637 places, 644 transitions, 1376 flow [2022-11-18 21:09:11,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:11,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:11,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2023 transitions. [2022-11-18 21:09:11,622 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-11-18 21:09:11,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2023 transitions. [2022-11-18 21:09:11,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2023 transitions. [2022-11-18 21:09:11,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:11,624 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2023 transitions. [2022-11-18 21:09:11,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.3333333333334) internal successors, (2023), 3 states have internal predecessors, (2023), 0 states have call successors, (0), 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 21:09:11,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:11,633 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:11,633 INFO L175 Difference]: Start difference. First operand has 639 places, 644 transitions, 1326 flow. Second operand 3 states and 2023 transitions. [2022-11-18 21:09:11,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 637 places, 644 transitions, 1376 flow [2022-11-18 21:09:11,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 636 places, 644 transitions, 1371 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:09:11,646 INFO L231 Difference]: Finished difference. Result has 637 places, 642 transitions, 1339 flow [2022-11-18 21:09:11,647 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1313, PETRI_DIFFERENCE_MINUEND_PLACES=634, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=640, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=634, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1339, PETRI_PLACES=637, PETRI_TRANSITIONS=642} [2022-11-18 21:09:11,648 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -32 predicate places. [2022-11-18 21:09:11,648 INFO L495 AbstractCegarLoop]: Abstraction has has 637 places, 642 transitions, 1339 flow [2022-11-18 21:09:11,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 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 21:09:11,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:11,649 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] [2022-11-18 21:09:11,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 21:09:11,650 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:11,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:11,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1864509109, now seen corresponding path program 1 times [2022-11-18 21:09:11,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:11,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504597469] [2022-11-18 21:09:11,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:11,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:11,710 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 21:09:11,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:11,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504597469] [2022-11-18 21:09:11,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504597469] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:11,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:11,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:11,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624249071] [2022-11-18 21:09:11,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:11,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:11,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:11,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:11,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:11,718 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-11-18 21:09:11,720 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 637 places, 642 transitions, 1339 flow. Second operand has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 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 21:09:11,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:11,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-11-18 21:09:11,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:12,299 INFO L130 PetriNetUnfolder]: 60/1994 cut-off events. [2022-11-18 21:09:12,299 INFO L131 PetriNetUnfolder]: For 19/21 co-relation queries the response was YES. [2022-11-18 21:09:12,323 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2154 conditions, 1994 events. 60/1994 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 11898 event pairs, 6 based on Foata normal form. 1/1742 useless extension candidates. Maximal degree in co-relation 2058. Up to 45 conditions per place. [2022-11-18 21:09:12,333 INFO L137 encePairwiseOnDemand]: 704/714 looper letters, 17 selfloop transitions, 5 changer transitions 5/643 dead transitions. [2022-11-18 21:09:12,334 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 635 places, 643 transitions, 1392 flow [2022-11-18 21:09:12,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:12,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:12,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2023 transitions. [2022-11-18 21:09:12,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9444444444444444 [2022-11-18 21:09:12,348 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2023 transitions. [2022-11-18 21:09:12,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2023 transitions. [2022-11-18 21:09:12,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:12,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2023 transitions. [2022-11-18 21:09:12,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.3333333333334) internal successors, (2023), 3 states have internal predecessors, (2023), 0 states have call successors, (0), 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 21:09:12,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:12,361 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:12,362 INFO L175 Difference]: Start difference. First operand has 637 places, 642 transitions, 1339 flow. Second operand 3 states and 2023 transitions. [2022-11-18 21:09:12,362 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 635 places, 643 transitions, 1392 flow [2022-11-18 21:09:12,368 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 634 places, 643 transitions, 1386 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:09:12,378 INFO L231 Difference]: Finished difference. Result has 635 places, 635 transitions, 1335 flow [2022-11-18 21:09:12,379 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1325, PETRI_DIFFERENCE_MINUEND_PLACES=632, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=633, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1335, PETRI_PLACES=635, PETRI_TRANSITIONS=635} [2022-11-18 21:09:12,379 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -34 predicate places. [2022-11-18 21:09:12,382 INFO L495 AbstractCegarLoop]: Abstraction has has 635 places, 635 transitions, 1335 flow [2022-11-18 21:09:12,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.3333333333334) internal successors, (1999), 3 states have internal predecessors, (1999), 0 states have call successors, (0), 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 21:09:12,383 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:12,383 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] [2022-11-18 21:09:12,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 21:09:12,384 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:12,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:12,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1456971799, now seen corresponding path program 1 times [2022-11-18 21:09:12,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:12,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571180690] [2022-11-18 21:09:12,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:12,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:12,450 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 21:09:12,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:12,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571180690] [2022-11-18 21:09:12,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571180690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:12,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:12,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:12,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855285167] [2022-11-18 21:09:12,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:12,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:12,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:12,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:12,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:12,456 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-18 21:09:12,459 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 635 transitions, 1335 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:12,459 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:12,459 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-18 21:09:12,459 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:13,427 INFO L130 PetriNetUnfolder]: 151/4028 cut-off events. [2022-11-18 21:09:13,427 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-18 21:09:13,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4506 conditions, 4028 events. 151/4028 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 34177 event pairs, 40 based on Foata normal form. 0/3542 useless extension candidates. Maximal degree in co-relation 4409. Up to 158 conditions per place. [2022-11-18 21:09:13,476 INFO L137 encePairwiseOnDemand]: 705/714 looper letters, 20 selfloop transitions, 3 changer transitions 0/632 dead transitions. [2022-11-18 21:09:13,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 626 places, 632 transitions, 1377 flow [2022-11-18 21:09:13,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:13,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:13,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2015 transitions. [2022-11-18 21:09:13,483 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9407096171802054 [2022-11-18 21:09:13,483 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2015 transitions. [2022-11-18 21:09:13,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2015 transitions. [2022-11-18 21:09:13,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:13,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2015 transitions. [2022-11-18 21:09:13,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 671.6666666666666) internal successors, (2015), 3 states have internal predecessors, (2015), 0 states have call successors, (0), 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 21:09:13,495 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:13,496 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:13,496 INFO L175 Difference]: Start difference. First operand has 635 places, 635 transitions, 1335 flow. Second operand 3 states and 2015 transitions. [2022-11-18 21:09:13,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 626 places, 632 transitions, 1377 flow [2022-11-18 21:09:13,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 625 places, 632 transitions, 1372 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:09:13,512 INFO L231 Difference]: Finished difference. Result has 626 places, 630 transitions, 1331 flow [2022-11-18 21:09:13,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=623, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=626, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1331, PETRI_PLACES=626, PETRI_TRANSITIONS=630} [2022-11-18 21:09:13,514 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -43 predicate places. [2022-11-18 21:09:13,514 INFO L495 AbstractCegarLoop]: Abstraction has has 626 places, 630 transitions, 1331 flow [2022-11-18 21:09:13,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:13,515 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:13,516 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] [2022-11-18 21:09:13,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 21:09:13,516 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:13,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:13,517 INFO L85 PathProgramCache]: Analyzing trace with hash 674855596, now seen corresponding path program 1 times [2022-11-18 21:09:13,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:13,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700472566] [2022-11-18 21:09:13,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:13,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:13,575 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 21:09:13,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:13,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700472566] [2022-11-18 21:09:13,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700472566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:13,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:13,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:13,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473196651] [2022-11-18 21:09:13,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:13,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:13,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:13,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:13,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:13,580 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 662 out of 714 [2022-11-18 21:09:13,583 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 630 transitions, 1331 flow. Second operand has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:13,583 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:13,583 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 662 of 714 [2022-11-18 21:09:13,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:14,696 INFO L130 PetriNetUnfolder]: 126/3877 cut-off events. [2022-11-18 21:09:14,697 INFO L131 PetriNetUnfolder]: For 40/44 co-relation queries the response was YES. [2022-11-18 21:09:14,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4363 conditions, 3877 events. 126/3877 cut-off events. For 40/44 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 32952 event pairs, 6 based on Foata normal form. 0/3486 useless extension candidates. Maximal degree in co-relation 4265. Up to 176 conditions per place. [2022-11-18 21:09:14,765 INFO L137 encePairwiseOnDemand]: 705/714 looper letters, 21 selfloop transitions, 3 changer transitions 0/628 dead transitions. [2022-11-18 21:09:14,766 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 628 transitions, 1378 flow [2022-11-18 21:09:14,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:14,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:14,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2016 transitions. [2022-11-18 21:09:14,772 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9411764705882353 [2022-11-18 21:09:14,772 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2016 transitions. [2022-11-18 21:09:14,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2016 transitions. [2022-11-18 21:09:14,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:14,774 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2016 transitions. [2022-11-18 21:09:14,778 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 21:09:14,782 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:14,783 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:14,784 INFO L175 Difference]: Start difference. First operand has 626 places, 630 transitions, 1331 flow. Second operand 3 states and 2016 transitions. [2022-11-18 21:09:14,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 628 transitions, 1378 flow [2022-11-18 21:09:14,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 628 transitions, 1375 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:09:14,800 INFO L231 Difference]: Finished difference. Result has 622 places, 625 transitions, 1329 flow [2022-11-18 21:09:14,801 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1316, PETRI_DIFFERENCE_MINUEND_PLACES=619, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=624, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=621, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1329, PETRI_PLACES=622, PETRI_TRANSITIONS=625} [2022-11-18 21:09:14,801 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -47 predicate places. [2022-11-18 21:09:14,802 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 625 transitions, 1329 flow [2022-11-18 21:09:14,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 663.3333333333334) internal successors, (1990), 3 states have internal predecessors, (1990), 0 states have call successors, (0), 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 21:09:14,803 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:14,803 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] [2022-11-18 21:09:14,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 21:09:14,803 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:14,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:14,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1120973834, now seen corresponding path program 1 times [2022-11-18 21:09:14,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:14,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297180464] [2022-11-18 21:09:14,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:14,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:14,885 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 21:09:14,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:14,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297180464] [2022-11-18 21:09:14,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297180464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:14,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:14,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:09:14,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509006756] [2022-11-18 21:09:14,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:14,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:14,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:14,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:14,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:14,891 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 665 out of 714 [2022-11-18 21:09:14,894 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 625 transitions, 1329 flow. Second operand has 3 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 0 states have call successors, (0), 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 21:09:14,894 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:14,894 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 665 of 714 [2022-11-18 21:09:14,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:16,882 INFO L130 PetriNetUnfolder]: 354/9746 cut-off events. [2022-11-18 21:09:16,883 INFO L131 PetriNetUnfolder]: For 59/63 co-relation queries the response was YES. [2022-11-18 21:09:16,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10938 conditions, 9746 events. 354/9746 cut-off events. For 59/63 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 100177 event pairs, 80 based on Foata normal form. 0/8810 useless extension candidates. Maximal degree in co-relation 10841. Up to 467 conditions per place. [2022-11-18 21:09:16,980 INFO L137 encePairwiseOnDemand]: 706/714 looper letters, 19 selfloop transitions, 2 changer transitions 0/623 dead transitions. [2022-11-18 21:09:16,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 618 places, 623 transitions, 1369 flow [2022-11-18 21:09:16,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:16,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-18 21:09:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2022 transitions. [2022-11-18 21:09:16,987 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9439775910364145 [2022-11-18 21:09:16,987 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2022 transitions. [2022-11-18 21:09:16,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2022 transitions. [2022-11-18 21:09:16,988 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:16,988 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2022 transitions. [2022-11-18 21:09:16,992 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 674.0) internal successors, (2022), 3 states have internal predecessors, (2022), 0 states have call successors, (0), 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 21:09:16,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:16,998 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 714.0) internal successors, (2856), 4 states have internal predecessors, (2856), 0 states have call successors, (0), 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 21:09:16,998 INFO L175 Difference]: Start difference. First operand has 622 places, 625 transitions, 1329 flow. Second operand 3 states and 2022 transitions. [2022-11-18 21:09:16,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 618 places, 623 transitions, 1369 flow [2022-11-18 21:09:17,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 623 transitions, 1366 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-18 21:09:17,014 INFO L231 Difference]: Finished difference. Result has 618 places, 621 transitions, 1328 flow [2022-11-18 21:09:17,014 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1314, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=619, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=617, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1328, PETRI_PLACES=618, PETRI_TRANSITIONS=621} [2022-11-18 21:09:17,015 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -51 predicate places. [2022-11-18 21:09:17,015 INFO L495 AbstractCegarLoop]: Abstraction has has 618 places, 621 transitions, 1328 flow [2022-11-18 21:09:17,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 666.6666666666666) internal successors, (2000), 3 states have internal predecessors, (2000), 0 states have call successors, (0), 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 21:09:17,016 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:17,016 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] [2022-11-18 21:09:17,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 21:09:17,017 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:17,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:17,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1149824123, now seen corresponding path program 1 times [2022-11-18 21:09:17,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:17,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434011397] [2022-11-18 21:09:17,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:17,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:17,674 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 21:09:17,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:17,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434011397] [2022-11-18 21:09:17,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434011397] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:17,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:17,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:09:17,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759989190] [2022-11-18 21:09:17,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:17,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:09:17,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:17,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:09:17,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:09:17,681 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 626 out of 714 [2022-11-18 21:09:17,685 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 621 transitions, 1328 flow. Second operand has 6 states, 6 states have (on average 627.8333333333334) internal successors, (3767), 6 states have internal predecessors, (3767), 0 states have call successors, (0), 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 21:09:17,685 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:17,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 626 of 714 [2022-11-18 21:09:17,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-18 21:09:30,704 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, 628#L47-3true, 777#true, Black: 742#true, Black: 747#true, 757#true, 621#L98-4true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-18 21:09:30,704 INFO L383 tUnfolder$Statistics]: this new event has 366 ancestors and is cut-off event [2022-11-18 21:09:30,705 INFO L386 tUnfolder$Statistics]: existing Event has 265 ancestors and is cut-off event [2022-11-18 21:09:30,705 INFO L386 tUnfolder$Statistics]: existing Event has 171 ancestors and is cut-off event [2022-11-18 21:09:30,705 INFO L386 tUnfolder$Statistics]: existing Event has 359 ancestors and is cut-off event [2022-11-18 21:09:30,784 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), Black: 772#true, 628#L47-3true, 777#true, Black: 742#true, Black: 747#true, 757#true, 74#L99-1true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-18 21:09:30,784 INFO L383 tUnfolder$Statistics]: this new event has 369 ancestors and is cut-off event [2022-11-18 21:09:30,784 INFO L386 tUnfolder$Statistics]: existing Event has 268 ancestors and is cut-off event [2022-11-18 21:09:30,784 INFO L386 tUnfolder$Statistics]: existing Event has 268 ancestors and is cut-off event [2022-11-18 21:09:30,785 INFO L386 tUnfolder$Statistics]: existing Event has 362 ancestors and is cut-off event [2022-11-18 21:09:30,850 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, 628#L47-3true, Black: 742#true, Black: 747#true, 621#L98-4true, 774#(= |#race~A~0| 0), Black: 757#true, 752#true, Black: 762#true]) [2022-11-18 21:09:30,850 INFO L383 tUnfolder$Statistics]: this new event has 371 ancestors and is cut-off event [2022-11-18 21:09:30,850 INFO L386 tUnfolder$Statistics]: existing Event has 176 ancestors and is cut-off event [2022-11-18 21:09:30,850 INFO L386 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-11-18 21:09:30,850 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-18 21:09:30,859 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), Black: 772#true, 628#L47-3true, Black: 742#true, Black: 747#true, 757#true, 633#L99-3true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-18 21:09:30,859 INFO L383 tUnfolder$Statistics]: this new event has 371 ancestors and is cut-off event [2022-11-18 21:09:30,859 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-18 21:09:30,859 INFO L386 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-11-18 21:09:30,859 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-18 21:09:30,895 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), 137#L99-4true, Black: 772#true, 628#L47-3true, Black: 742#true, Black: 747#true, 757#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-18 21:09:30,895 INFO L383 tUnfolder$Statistics]: this new event has 372 ancestors and is cut-off event [2022-11-18 21:09:30,895 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-18 21:09:30,895 INFO L386 tUnfolder$Statistics]: existing Event has 365 ancestors and is cut-off event [2022-11-18 21:09:30,895 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-18 21:09:30,942 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), Black: 772#true, 777#true, 628#L47-3true, Black: 742#true, Black: 747#true, 74#L99-1true, 774#(= |#race~A~0| 0), Black: 757#true, 752#true, Black: 762#true]) [2022-11-18 21:09:30,942 INFO L383 tUnfolder$Statistics]: this new event has 374 ancestors and is cut-off event [2022-11-18 21:09:30,942 INFO L386 tUnfolder$Statistics]: existing Event has 273 ancestors and is cut-off event [2022-11-18 21:09:30,942 INFO L386 tUnfolder$Statistics]: existing Event has 367 ancestors and is cut-off event [2022-11-18 21:09:30,942 INFO L386 tUnfolder$Statistics]: existing Event has 273 ancestors and is cut-off event [2022-11-18 21:09:30,987 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, 628#L47-3true, Black: 742#true, Black: 747#true, 633#L99-3true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 774#(= |#race~A~0| 0), Black: 757#true, 752#true, Black: 762#true]) [2022-11-18 21:09:30,987 INFO L383 tUnfolder$Statistics]: this new event has 376 ancestors and is cut-off event [2022-11-18 21:09:30,987 INFO L386 tUnfolder$Statistics]: existing Event has 369 ancestors and is cut-off event [2022-11-18 21:09:30,987 INFO L386 tUnfolder$Statistics]: existing Event has 275 ancestors and is cut-off event [2022-11-18 21:09:30,987 INFO L386 tUnfolder$Statistics]: existing Event has 275 ancestors and is cut-off event [2022-11-18 21:09:31,009 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), Black: 772#true, 137#L99-4true, 628#L47-3true, Black: 742#true, Black: 747#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 774#(= |#race~A~0| 0), Black: 757#true, 752#true, Black: 762#true]) [2022-11-18 21:09:31,009 INFO L383 tUnfolder$Statistics]: this new event has 377 ancestors and is cut-off event [2022-11-18 21:09:31,009 INFO L386 tUnfolder$Statistics]: existing Event has 276 ancestors and is cut-off event [2022-11-18 21:09:31,010 INFO L386 tUnfolder$Statistics]: existing Event has 370 ancestors and is cut-off event [2022-11-18 21:09:31,011 INFO L386 tUnfolder$Statistics]: existing Event has 276 ancestors and is cut-off event [2022-11-18 21:09:31,100 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [154#L64-3true, Black: 767#true, 729#(= |#race~N~0| 0), Black: 772#true, 628#L47-3true, Black: 742#true, Black: 747#true, 757#true, 633#L99-3true, 780#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0)), 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-18 21:09:31,100 INFO L383 tUnfolder$Statistics]: this new event has 378 ancestors and is cut-off event [2022-11-18 21:09:31,100 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-18 21:09:31,100 INFO L386 tUnfolder$Statistics]: existing Event has 364 ancestors and is cut-off event [2022-11-18 21:09:31,100 INFO L386 tUnfolder$Statistics]: existing Event has 371 ancestors and is cut-off event [2022-11-18 21:09:31,100 INFO L386 tUnfolder$Statistics]: existing Event has 270 ancestors and is cut-off event [2022-11-18 21:09:31,110 INFO L381 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([1589] L47-2-->L47-3: Formula: (= |v_#race~A~0_1| 0) InVars {} OutVars{#race~A~0=|v_#race~A~0_1|} AuxVars[] AssignedVars[#race~A~0][252], [Black: 767#true, 154#L64-3true, 729#(= |#race~N~0| 0), 137#L99-4true, Black: 772#true, 628#L47-3true, Black: 742#true, Black: 747#true, 781#(and (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) |ULTIMATE.start_main_~#t1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ |ULTIMATE.start_main_~#t1~0#1.offset| 1)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#t1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#t1~0#1.offset|)) 0)), 757#true, 774#(= |#race~A~0| 0), 752#true, Black: 762#true]) [2022-11-18 21:09:31,110 INFO L383 tUnfolder$Statistics]: this new event has 379 ancestors and is cut-off event [2022-11-18 21:09:31,111 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-18 21:09:31,111 INFO L386 tUnfolder$Statistics]: existing Event has 372 ancestors and is cut-off event [2022-11-18 21:09:31,111 INFO L386 tUnfolder$Statistics]: existing Event has 365 ancestors and is cut-off event [2022-11-18 21:09:31,111 INFO L386 tUnfolder$Statistics]: existing Event has 271 ancestors and is cut-off event [2022-11-18 21:09:31,291 INFO L130 PetriNetUnfolder]: 15345/74692 cut-off events. [2022-11-18 21:09:31,291 INFO L131 PetriNetUnfolder]: For 59/989 co-relation queries the response was YES. [2022-11-18 21:09:31,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102500 conditions, 74692 events. 15345/74692 cut-off events. For 59/989 co-relation queries the response was YES. Maximal size of possible extension queue 931. Compared 1029842 event pairs, 4572 based on Foata normal form. 48/66528 useless extension candidates. Maximal degree in co-relation 102400. Up to 7345 conditions per place. [2022-11-18 21:09:32,023 INFO L137 encePairwiseOnDemand]: 709/714 looper letters, 199 selfloop transitions, 4 changer transitions 0/764 dead transitions. [2022-11-18 21:09:32,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 622 places, 764 transitions, 2020 flow [2022-11-18 21:09:32,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:09:32,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-18 21:09:32,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3960 transitions. [2022-11-18 21:09:32,033 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9243697478991597 [2022-11-18 21:09:32,033 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3960 transitions. [2022-11-18 21:09:32,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3960 transitions. [2022-11-18 21:09:32,035 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 21:09:32,035 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3960 transitions. [2022-11-18 21:09:32,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 660.0) internal successors, (3960), 6 states have internal predecessors, (3960), 0 states have call successors, (0), 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 21:09:32,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 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 21:09:32,050 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 714.0) internal successors, (4998), 7 states have internal predecessors, (4998), 0 states have call successors, (0), 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 21:09:32,051 INFO L175 Difference]: Start difference. First operand has 618 places, 621 transitions, 1328 flow. Second operand 6 states and 3960 transitions. [2022-11-18 21:09:32,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 622 places, 764 transitions, 2020 flow [2022-11-18 21:09:32,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 764 transitions, 2020 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-18 21:09:32,092 INFO L231 Difference]: Finished difference. Result has 622 places, 620 transitions, 1334 flow [2022-11-18 21:09:32,093 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=714, PETRI_DIFFERENCE_MINUEND_FLOW=1326, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=620, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=616, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1334, PETRI_PLACES=622, PETRI_TRANSITIONS=620} [2022-11-18 21:09:32,093 INFO L288 CegarLoopForPetriNet]: 669 programPoint places, -47 predicate places. [2022-11-18 21:09:32,093 INFO L495 AbstractCegarLoop]: Abstraction has has 622 places, 620 transitions, 1334 flow [2022-11-18 21:09:32,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 627.8333333333334) internal successors, (3767), 6 states have internal predecessors, (3767), 0 states have call successors, (0), 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 21:09:32,095 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-18 21:09:32,095 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] [2022-11-18 21:09:32,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 21:09:32,096 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err21ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err22ASSERT_VIOLATIONDATA_RACE (and 121 more)] === [2022-11-18 21:09:32,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:32,096 INFO L85 PathProgramCache]: Analyzing trace with hash 213087681, now seen corresponding path program 1 times [2022-11-18 21:09:32,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:32,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141894919] [2022-11-18 21:09:32,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:32,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:32,613 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 21:09:32,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:32,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141894919] [2022-11-18 21:09:32,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141894919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:32,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:32,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:09:32,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452102112] [2022-11-18 21:09:32,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:32,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:09:32,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:32,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:09:32,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:09:32,620 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 617 out of 714 [2022-11-18 21:09:32,623 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 622 places, 620 transitions, 1334 flow. Second operand has 6 states, 6 states have (on average 619.0) internal successors, (3714), 6 states have internal predecessors, (3714), 0 states have call successors, (0), 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 21:09:32,623 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-18 21:09:32,623 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 617 of 714 [2022-11-18 21:09:32,624 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand