./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN --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 c245694d80bb36f575f27eb50fa261b26ec38a4ced597397981ad6c6c7486707 --- 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-6b4ec56 [2022-11-20 12:20:31,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:20:31,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:20:31,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:20:31,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:20:31,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:20:31,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:20:31,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:20:31,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:20:31,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:20:31,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:20:31,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:20:31,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:20:31,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:20:31,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:20:31,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:20:31,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:20:31,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:20:31,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:20:31,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:20:31,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:20:31,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:20:31,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:20:31,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:20:31,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:20:31,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:20:31,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:20:31,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:20:31,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:20:31,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:20:31,984 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:20:31,985 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:20:31,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:20:31,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:20:31,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:20:31,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:20:31,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:20:31,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:20:31,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:20:31,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:20:31,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:20:31,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:20:32,051 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:20:32,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:20:32,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:20:32,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:20:32,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:20:32,055 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:20:32,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:20:32,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:20:32,056 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:20:32,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:20:32,058 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:20:32,058 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:20:32,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:20:32,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:20:32,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:20:32,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:20:32,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:20:32,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:20:32,060 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:20:32,060 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:20:32,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:20:32,061 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:20:32,061 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:20:32,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:20:32,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:20:32,062 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:20:32,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:20:32,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:20:32,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:20:32,063 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:20:32,063 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:20:32,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:20:32,064 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:20:32,064 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:20:32,064 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:20:32,065 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_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c245694d80bb36f575f27eb50fa261b26ec38a4ced597397981ad6c6c7486707 [2022-11-20 12:20:32,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:20:32,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:20:32,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:20:32,436 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:20:32,437 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:20:32,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/parallel-misc-2.wvr.c [2022-11-20 12:20:35,632 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:20:35,927 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:20:35,928 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/sv-benchmarks/c/weaver/parallel-misc-2.wvr.c [2022-11-20 12:20:35,937 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/data/c3f42b404/baf9a13b3a4b4b6eae80a846f2d496b9/FLAG4c149b68e [2022-11-20 12:20:35,960 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/data/c3f42b404/baf9a13b3a4b4b6eae80a846f2d496b9 [2022-11-20 12:20:35,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:20:35,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:20:35,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:20:35,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:20:35,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:20:35,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:20:35" (1/1) ... [2022-11-20 12:20:35,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37da8b6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:35, skipping insertion in model container [2022-11-20 12:20:35,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:20:35" (1/1) ... [2022-11-20 12:20:35,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:20:36,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:20:36,251 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/sv-benchmarks/c/weaver/parallel-misc-2.wvr.c[2554,2567] [2022-11-20 12:20:36,252 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:20:36,264 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:20:36,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/sv-benchmarks/c/weaver/parallel-misc-2.wvr.c[2554,2567] [2022-11-20 12:20:36,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:20:36,314 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:20:36,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36 WrapperNode [2022-11-20 12:20:36,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:20:36,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:20:36,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:20:36,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:20:36,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (1/1) ... [2022-11-20 12:20:36,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (1/1) ... [2022-11-20 12:20:36,377 INFO L138 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 120 [2022-11-20 12:20:36,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:20:36,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:20:36,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:20:36,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:20:36,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (1/1) ... [2022-11-20 12:20:36,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (1/1) ... [2022-11-20 12:20:36,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (1/1) ... [2022-11-20 12:20:36,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (1/1) ... [2022-11-20 12:20:36,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (1/1) ... [2022-11-20 12:20:36,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (1/1) ... [2022-11-20 12:20:36,410 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (1/1) ... [2022-11-20 12:20:36,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (1/1) ... [2022-11-20 12:20:36,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:20:36,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:20:36,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:20:36,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:20:36,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (1/1) ... [2022-11-20 12:20:36,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:20:36,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:20:36,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:20:36,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:20:36,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:20:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 12:20:36,519 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 12:20:36,519 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 12:20:36,520 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 12:20:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:20:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:20:36,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:20:36,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 12:20:36,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 12:20:36,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:20:36,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:20:36,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:20:36,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:20:36,524 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:20:36,660 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:20:36,676 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:20:37,332 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:20:37,469 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:20:37,475 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:20:37,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:20:37 BoogieIcfgContainer [2022-11-20 12:20:37,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:20:37,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:20:37,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:20:37,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:20:37,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:20:35" (1/3) ... [2022-11-20 12:20:37,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290b7193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:20:37, skipping insertion in model container [2022-11-20 12:20:37,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:20:36" (2/3) ... [2022-11-20 12:20:37,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290b7193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:20:37, skipping insertion in model container [2022-11-20 12:20:37,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:20:37" (3/3) ... [2022-11-20 12:20:37,494 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2.wvr.c [2022-11-20 12:20:37,506 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:20:37,516 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:20:37,516 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-20 12:20:37,516 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:20:37,672 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 12:20:37,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 231 transitions, 478 flow [2022-11-20 12:20:37,850 INFO L130 PetriNetUnfolder]: 10/229 cut-off events. [2022-11-20 12:20:37,850 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 12:20:37,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 229 events. 10/229 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 355 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 148. Up to 2 conditions per place. [2022-11-20 12:20:37,860 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 231 transitions, 478 flow [2022-11-20 12:20:37,868 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 211 transitions, 434 flow [2022-11-20 12:20:37,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:20:37,890 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;@1645381c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:20:37,891 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-11-20 12:20:37,911 INFO L130 PetriNetUnfolder]: 0/23 cut-off events. [2022-11-20 12:20:37,911 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:20:37,912 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:37,912 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] [2022-11-20 12:20:37,913 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:37,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:37,926 INFO L85 PathProgramCache]: Analyzing trace with hash -754687125, now seen corresponding path program 1 times [2022-11-20 12:20:37,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:37,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356149637] [2022-11-20 12:20:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:37,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:38,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:38,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356149637] [2022-11-20 12:20:38,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356149637] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:38,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:38,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:38,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633856216] [2022-11-20 12:20:38,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:38,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:38,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:38,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:38,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:38,243 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 231 [2022-11-20 12:20:38,247 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 211 transitions, 434 flow. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:38,248 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:38,248 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 231 [2022-11-20 12:20:38,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:38,378 INFO L130 PetriNetUnfolder]: 14/261 cut-off events. [2022-11-20 12:20:38,378 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-20 12:20:38,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 261 events. 14/261 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 641 event pairs, 3 based on Foata normal form. 7/222 useless extension candidates. Maximal degree in co-relation 158. Up to 33 conditions per place. [2022-11-20 12:20:38,383 INFO L137 encePairwiseOnDemand]: 217/231 looper letters, 22 selfloop transitions, 2 changer transitions 1/199 dead transitions. [2022-11-20 12:20:38,383 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 199 transitions, 458 flow [2022-11-20 12:20:38,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:38,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:38,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2022-11-20 12:20:38,400 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8831168831168831 [2022-11-20 12:20:38,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 612 transitions. [2022-11-20 12:20:38,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 612 transitions. [2022-11-20 12:20:38,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:38,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 612 transitions. [2022-11-20 12:20:38,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:38,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:38,421 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:38,433 INFO L175 Difference]: Start difference. First operand has 209 places, 211 transitions, 434 flow. Second operand 3 states and 612 transitions. [2022-11-20 12:20:38,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 199 transitions, 458 flow [2022-11-20 12:20:38,442 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 199 transitions, 450 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:20:38,449 INFO L231 Difference]: Finished difference. Result has 198 places, 198 transitions, 404 flow [2022-11-20 12:20:38,451 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=404, PETRI_PLACES=198, PETRI_TRANSITIONS=198} [2022-11-20 12:20:38,458 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -11 predicate places. [2022-11-20 12:20:38,459 INFO L495 AbstractCegarLoop]: Abstraction has has 198 places, 198 transitions, 404 flow [2022-11-20 12:20:38,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:38,460 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:38,460 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:38,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:20:38,461 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:38,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:38,462 INFO L85 PathProgramCache]: Analyzing trace with hash -735872425, now seen corresponding path program 1 times [2022-11-20 12:20:38,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:38,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966958457] [2022-11-20 12:20:38,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:38,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:38,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:38,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:38,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966958457] [2022-11-20 12:20:38,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966958457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:38,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:38,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:38,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073976721] [2022-11-20 12:20:38,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:38,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:38,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:38,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:38,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:38,589 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 231 [2022-11-20 12:20:38,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 198 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:38,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:38,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 231 [2022-11-20 12:20:38,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:38,740 INFO L130 PetriNetUnfolder]: 42/312 cut-off events. [2022-11-20 12:20:38,741 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-11-20 12:20:38,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409 conditions, 312 events. 42/312 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1031 event pairs, 21 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 377. Up to 79 conditions per place. [2022-11-20 12:20:38,752 INFO L137 encePairwiseOnDemand]: 228/231 looper letters, 23 selfloop transitions, 2 changer transitions 0/197 dead transitions. [2022-11-20 12:20:38,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 197 transitions, 452 flow [2022-11-20 12:20:38,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:38,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:38,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2022-11-20 12:20:38,763 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8686868686868687 [2022-11-20 12:20:38,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 602 transitions. [2022-11-20 12:20:38,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 602 transitions. [2022-11-20 12:20:38,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:38,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 602 transitions. [2022-11-20 12:20:38,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:38,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:38,778 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:38,778 INFO L175 Difference]: Start difference. First operand has 198 places, 198 transitions, 404 flow. Second operand 3 states and 602 transitions. [2022-11-20 12:20:38,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 197 transitions, 452 flow [2022-11-20 12:20:38,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 197 transitions, 448 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:38,790 INFO L231 Difference]: Finished difference. Result has 196 places, 197 transitions, 402 flow [2022-11-20 12:20:38,791 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=398, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=402, PETRI_PLACES=196, PETRI_TRANSITIONS=197} [2022-11-20 12:20:38,792 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -13 predicate places. [2022-11-20 12:20:38,792 INFO L495 AbstractCegarLoop]: Abstraction has has 196 places, 197 transitions, 402 flow [2022-11-20 12:20:38,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:38,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:38,794 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] [2022-11-20 12:20:38,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:20:38,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:38,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:38,797 INFO L85 PathProgramCache]: Analyzing trace with hash 969910412, now seen corresponding path program 1 times [2022-11-20 12:20:38,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:38,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987225007] [2022-11-20 12:20:38,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:38,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:38,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:38,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:38,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:38,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987225007] [2022-11-20 12:20:38,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987225007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:38,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:38,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:38,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360679987] [2022-11-20 12:20:38,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:38,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:38,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:38,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:38,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:38,859 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 231 [2022-11-20 12:20:38,860 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 197 transitions, 402 flow. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:38,861 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:38,861 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 231 [2022-11-20 12:20:38,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:39,004 INFO L130 PetriNetUnfolder]: 42/312 cut-off events. [2022-11-20 12:20:39,004 INFO L131 PetriNetUnfolder]: For 12/15 co-relation queries the response was YES. [2022-11-20 12:20:39,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 400 conditions, 312 events. 42/312 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1112 event pairs, 21 based on Foata normal form. 0/252 useless extension candidates. Maximal degree in co-relation 362. Up to 79 conditions per place. [2022-11-20 12:20:39,007 INFO L137 encePairwiseOnDemand]: 228/231 looper letters, 23 selfloop transitions, 2 changer transitions 0/196 dead transitions. [2022-11-20 12:20:39,008 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 196 transitions, 450 flow [2022-11-20 12:20:39,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:39,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:39,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2022-11-20 12:20:39,011 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8686868686868687 [2022-11-20 12:20:39,011 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 602 transitions. [2022-11-20 12:20:39,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 602 transitions. [2022-11-20 12:20:39,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:39,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 602 transitions. [2022-11-20 12:20:39,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,019 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,019 INFO L175 Difference]: Start difference. First operand has 196 places, 197 transitions, 402 flow. Second operand 3 states and 602 transitions. [2022-11-20 12:20:39,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 196 transitions, 450 flow [2022-11-20 12:20:39,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 196 transitions, 446 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:39,024 INFO L231 Difference]: Finished difference. Result has 195 places, 196 transitions, 400 flow [2022-11-20 12:20:39,025 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=400, PETRI_PLACES=195, PETRI_TRANSITIONS=196} [2022-11-20 12:20:39,027 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -14 predicate places. [2022-11-20 12:20:39,028 INFO L495 AbstractCegarLoop]: Abstraction has has 195 places, 196 transitions, 400 flow [2022-11-20 12:20:39,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,029 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:39,029 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] [2022-11-20 12:20:39,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:20:39,030 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:39,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:39,031 INFO L85 PathProgramCache]: Analyzing trace with hash -195982632, now seen corresponding path program 1 times [2022-11-20 12:20:39,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:39,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204630528] [2022-11-20 12:20:39,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:39,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:39,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:39,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:39,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:39,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204630528] [2022-11-20 12:20:39,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204630528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:39,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:39,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:39,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213343779] [2022-11-20 12:20:39,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:39,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:39,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:39,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:39,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:39,115 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 231 [2022-11-20 12:20:39,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 196 transitions, 400 flow. Second operand has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:39,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 231 [2022-11-20 12:20:39,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:39,215 INFO L130 PetriNetUnfolder]: 47/464 cut-off events. [2022-11-20 12:20:39,215 INFO L131 PetriNetUnfolder]: For 6/24 co-relation queries the response was YES. [2022-11-20 12:20:39,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 552 conditions, 464 events. 47/464 cut-off events. For 6/24 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2090 event pairs, 24 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 508. Up to 76 conditions per place. [2022-11-20 12:20:39,219 INFO L137 encePairwiseOnDemand]: 228/231 looper letters, 17 selfloop transitions, 2 changer transitions 0/195 dead transitions. [2022-11-20 12:20:39,219 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 195 transitions, 436 flow [2022-11-20 12:20:39,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:39,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:39,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 614 transitions. [2022-11-20 12:20:39,222 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.886002886002886 [2022-11-20 12:20:39,222 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 614 transitions. [2022-11-20 12:20:39,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 614 transitions. [2022-11-20 12:20:39,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:39,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 614 transitions. [2022-11-20 12:20:39,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,228 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,228 INFO L175 Difference]: Start difference. First operand has 195 places, 196 transitions, 400 flow. Second operand 3 states and 614 transitions. [2022-11-20 12:20:39,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 195 transitions, 436 flow [2022-11-20 12:20:39,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 195 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:39,232 INFO L231 Difference]: Finished difference. Result has 194 places, 195 transitions, 398 flow [2022-11-20 12:20:39,233 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=194, PETRI_TRANSITIONS=195} [2022-11-20 12:20:39,234 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -15 predicate places. [2022-11-20 12:20:39,234 INFO L495 AbstractCegarLoop]: Abstraction has has 194 places, 195 transitions, 398 flow [2022-11-20 12:20:39,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.33333333333334) internal successors, (598), 3 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,235 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:39,235 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] [2022-11-20 12:20:39,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:20:39,236 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:39,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:39,237 INFO L85 PathProgramCache]: Analyzing trace with hash -451635141, now seen corresponding path program 1 times [2022-11-20 12:20:39,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:39,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310579946] [2022-11-20 12:20:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:39,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:39,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:39,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:39,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310579946] [2022-11-20 12:20:39,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310579946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:39,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:39,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:39,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475463955] [2022-11-20 12:20:39,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:39,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:39,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:39,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:39,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:39,282 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 231 [2022-11-20 12:20:39,283 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 195 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,283 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:39,283 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 231 [2022-11-20 12:20:39,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:39,374 INFO L130 PetriNetUnfolder]: 42/289 cut-off events. [2022-11-20 12:20:39,375 INFO L131 PetriNetUnfolder]: For 3/6 co-relation queries the response was YES. [2022-11-20 12:20:39,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 289 events. 42/289 cut-off events. For 3/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 920 event pairs, 21 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 333. Up to 76 conditions per place. [2022-11-20 12:20:39,378 INFO L137 encePairwiseOnDemand]: 228/231 looper letters, 20 selfloop transitions, 2 changer transitions 0/194 dead transitions. [2022-11-20 12:20:39,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 194 transitions, 440 flow [2022-11-20 12:20:39,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:39,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:39,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 608 transitions. [2022-11-20 12:20:39,381 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8773448773448773 [2022-11-20 12:20:39,381 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 608 transitions. [2022-11-20 12:20:39,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 608 transitions. [2022-11-20 12:20:39,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:39,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 608 transitions. [2022-11-20 12:20:39,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,387 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,387 INFO L175 Difference]: Start difference. First operand has 194 places, 195 transitions, 398 flow. Second operand 3 states and 608 transitions. [2022-11-20 12:20:39,387 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 194 transitions, 440 flow [2022-11-20 12:20:39,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 194 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:39,393 INFO L231 Difference]: Finished difference. Result has 193 places, 194 transitions, 396 flow [2022-11-20 12:20:39,393 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=392, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=396, PETRI_PLACES=193, PETRI_TRANSITIONS=194} [2022-11-20 12:20:39,396 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -16 predicate places. [2022-11-20 12:20:39,397 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 194 transitions, 396 flow [2022-11-20 12:20:39,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,398 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:39,398 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:39,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:20:39,398 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:39,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:39,400 INFO L85 PathProgramCache]: Analyzing trace with hash 637413727, now seen corresponding path program 1 times [2022-11-20 12:20:39,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:39,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195678999] [2022-11-20 12:20:39,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:39,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:39,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:39,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:39,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195678999] [2022-11-20 12:20:39,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195678999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:39,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:39,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:39,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990381253] [2022-11-20 12:20:39,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:39,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:39,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:39,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:39,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:39,492 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 231 [2022-11-20 12:20:39,493 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 194 transitions, 396 flow. Second operand has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,493 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:39,493 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 231 [2022-11-20 12:20:39,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:39,572 INFO L130 PetriNetUnfolder]: 42/299 cut-off events. [2022-11-20 12:20:39,573 INFO L131 PetriNetUnfolder]: For 12/15 co-relation queries the response was YES. [2022-11-20 12:20:39,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 299 events. 42/299 cut-off events. For 12/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1101 event pairs, 21 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 328. Up to 76 conditions per place. [2022-11-20 12:20:39,575 INFO L137 encePairwiseOnDemand]: 228/231 looper letters, 20 selfloop transitions, 2 changer transitions 0/193 dead transitions. [2022-11-20 12:20:39,575 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 193 transitions, 438 flow [2022-11-20 12:20:39,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:39,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:39,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 608 transitions. [2022-11-20 12:20:39,578 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8773448773448773 [2022-11-20 12:20:39,578 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 608 transitions. [2022-11-20 12:20:39,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 608 transitions. [2022-11-20 12:20:39,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:39,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 608 transitions. [2022-11-20 12:20:39,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,583 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,584 INFO L175 Difference]: Start difference. First operand has 193 places, 194 transitions, 396 flow. Second operand 3 states and 608 transitions. [2022-11-20 12:20:39,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 193 transitions, 438 flow [2022-11-20 12:20:39,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 193 transitions, 434 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:39,589 INFO L231 Difference]: Finished difference. Result has 192 places, 193 transitions, 394 flow [2022-11-20 12:20:39,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=390, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=394, PETRI_PLACES=192, PETRI_TRANSITIONS=193} [2022-11-20 12:20:39,591 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -17 predicate places. [2022-11-20 12:20:39,592 INFO L495 AbstractCegarLoop]: Abstraction has has 192 places, 193 transitions, 394 flow [2022-11-20 12:20:39,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,593 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:39,594 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] [2022-11-20 12:20:39,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:20:39,594 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:39,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:39,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1058203209, now seen corresponding path program 1 times [2022-11-20 12:20:39,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:39,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427988270] [2022-11-20 12:20:39,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:39,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:39,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:39,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:39,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427988270] [2022-11-20 12:20:39,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427988270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:39,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:39,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:39,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077588416] [2022-11-20 12:20:39,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:39,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:39,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:39,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:39,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:39,709 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 231 [2022-11-20 12:20:39,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 193 transitions, 394 flow. Second operand has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,712 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:39,712 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 231 [2022-11-20 12:20:39,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:39,802 INFO L130 PetriNetUnfolder]: 24/310 cut-off events. [2022-11-20 12:20:39,802 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 12:20:39,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 310 events. 24/310 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 821 event pairs, 0 based on Foata normal form. 1/259 useless extension candidates. Maximal degree in co-relation 294. Up to 28 conditions per place. [2022-11-20 12:20:39,807 INFO L137 encePairwiseOnDemand]: 221/231 looper letters, 16 selfloop transitions, 5 changer transitions 5/197 dead transitions. [2022-11-20 12:20:39,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 197 transitions, 455 flow [2022-11-20 12:20:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:39,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:39,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 614 transitions. [2022-11-20 12:20:39,810 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.886002886002886 [2022-11-20 12:20:39,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 614 transitions. [2022-11-20 12:20:39,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 614 transitions. [2022-11-20 12:20:39,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:39,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 614 transitions. [2022-11-20 12:20:39,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.66666666666666) internal successors, (614), 3 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,815 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,815 INFO L175 Difference]: Start difference. First operand has 192 places, 193 transitions, 394 flow. Second operand 3 states and 614 transitions. [2022-11-20 12:20:39,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 197 transitions, 455 flow [2022-11-20 12:20:39,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 197 transitions, 451 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:39,821 INFO L231 Difference]: Finished difference. Result has 189 places, 190 transitions, 406 flow [2022-11-20 12:20:39,822 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=382, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=406, PETRI_PLACES=189, PETRI_TRANSITIONS=190} [2022-11-20 12:20:39,822 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -20 predicate places. [2022-11-20 12:20:39,823 INFO L495 AbstractCegarLoop]: Abstraction has has 189 places, 190 transitions, 406 flow [2022-11-20 12:20:39,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,823 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:39,824 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] [2022-11-20 12:20:39,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:20:39,826 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:39,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:39,827 INFO L85 PathProgramCache]: Analyzing trace with hash -973951809, now seen corresponding path program 1 times [2022-11-20 12:20:39,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:39,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150091488] [2022-11-20 12:20:39,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:39,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:39,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:39,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:39,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150091488] [2022-11-20 12:20:39,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150091488] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:39,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:39,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:39,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399280709] [2022-11-20 12:20:39,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:39,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:39,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:39,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:39,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:39,889 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 231 [2022-11-20 12:20:39,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 190 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,891 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:39,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 231 [2022-11-20 12:20:39,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:39,987 INFO L130 PetriNetUnfolder]: 55/392 cut-off events. [2022-11-20 12:20:39,987 INFO L131 PetriNetUnfolder]: For 46/48 co-relation queries the response was YES. [2022-11-20 12:20:39,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 392 events. 55/392 cut-off events. For 46/48 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1395 event pairs, 12 based on Foata normal form. 0/324 useless extension candidates. Maximal degree in co-relation 289. Up to 69 conditions per place. [2022-11-20 12:20:39,990 INFO L137 encePairwiseOnDemand]: 225/231 looper letters, 23 selfloop transitions, 3 changer transitions 0/191 dead transitions. [2022-11-20 12:20:39,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 191 transitions, 465 flow [2022-11-20 12:20:39,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:39,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:39,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 610 transitions. [2022-11-20 12:20:39,993 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8802308802308803 [2022-11-20 12:20:39,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 610 transitions. [2022-11-20 12:20:39,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 610 transitions. [2022-11-20 12:20:39,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:39,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 610 transitions. [2022-11-20 12:20:39,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.33333333333334) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,999 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:39,999 INFO L175 Difference]: Start difference. First operand has 189 places, 190 transitions, 406 flow. Second operand 3 states and 610 transitions. [2022-11-20 12:20:39,999 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 191 transitions, 465 flow [2022-11-20 12:20:40,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 191 transitions, 460 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:20:40,004 INFO L231 Difference]: Finished difference. Result has 185 places, 188 transitions, 408 flow [2022-11-20 12:20:40,004 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=395, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=185, PETRI_TRANSITIONS=188} [2022-11-20 12:20:40,007 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -24 predicate places. [2022-11-20 12:20:40,007 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 188 transitions, 408 flow [2022-11-20 12:20:40,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,008 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:40,008 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] [2022-11-20 12:20:40,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:20:40,009 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:40,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:40,009 INFO L85 PathProgramCache]: Analyzing trace with hash -786491114, now seen corresponding path program 1 times [2022-11-20 12:20:40,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:40,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266920863] [2022-11-20 12:20:40,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:40,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:40,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:40,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266920863] [2022-11-20 12:20:40,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266920863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:40,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:40,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:40,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441578198] [2022-11-20 12:20:40,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:40,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:40,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:40,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:40,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:40,086 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 231 [2022-11-20 12:20:40,087 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 188 transitions, 408 flow. Second operand has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,087 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:40,087 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 231 [2022-11-20 12:20:40,088 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:40,226 INFO L130 PetriNetUnfolder]: 83/495 cut-off events. [2022-11-20 12:20:40,227 INFO L131 PetriNetUnfolder]: For 84/100 co-relation queries the response was YES. [2022-11-20 12:20:40,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 701 conditions, 495 events. 83/495 cut-off events. For 84/100 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2081 event pairs, 5 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 457. Up to 81 conditions per place. [2022-11-20 12:20:40,230 INFO L137 encePairwiseOnDemand]: 225/231 looper letters, 27 selfloop transitions, 3 changer transitions 0/193 dead transitions. [2022-11-20 12:20:40,231 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 193 transitions, 489 flow [2022-11-20 12:20:40,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:40,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:40,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2022-11-20 12:20:40,233 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8831168831168831 [2022-11-20 12:20:40,233 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 612 transitions. [2022-11-20 12:20:40,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 612 transitions. [2022-11-20 12:20:40,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:40,234 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 612 transitions. [2022-11-20 12:20:40,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,238 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,238 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,239 INFO L175 Difference]: Start difference. First operand has 185 places, 188 transitions, 408 flow. Second operand 3 states and 612 transitions. [2022-11-20 12:20:40,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 193 transitions, 489 flow [2022-11-20 12:20:40,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 193 transitions, 486 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:20:40,243 INFO L231 Difference]: Finished difference. Result has 184 places, 186 transitions, 412 flow [2022-11-20 12:20:40,243 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=399, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=184, PETRI_TRANSITIONS=186} [2022-11-20 12:20:40,245 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -25 predicate places. [2022-11-20 12:20:40,245 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 186 transitions, 412 flow [2022-11-20 12:20:40,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 196.33333333333334) internal successors, (589), 3 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:40,246 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] [2022-11-20 12:20:40,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:20:40,246 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:40,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:40,247 INFO L85 PathProgramCache]: Analyzing trace with hash 29011816, now seen corresponding path program 1 times [2022-11-20 12:20:40,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:40,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575419823] [2022-11-20 12:20:40,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:40,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:40,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:40,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:40,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575419823] [2022-11-20 12:20:40,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575419823] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:40,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:40,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:40,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518857020] [2022-11-20 12:20:40,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:40,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:40,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:40,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:40,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:40,342 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 201 out of 231 [2022-11-20 12:20:40,344 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 186 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,344 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:40,344 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 201 of 231 [2022-11-20 12:20:40,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:40,502 INFO L130 PetriNetUnfolder]: 71/693 cut-off events. [2022-11-20 12:20:40,502 INFO L131 PetriNetUnfolder]: For 56/69 co-relation queries the response was YES. [2022-11-20 12:20:40,505 INFO L83 FinitePrefix]: Finished finitePrefix Result has 901 conditions, 693 events. 71/693 cut-off events. For 56/69 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3623 event pairs, 22 based on Foata normal form. 0/581 useless extension candidates. Maximal degree in co-relation 409. Up to 110 conditions per place. [2022-11-20 12:20:40,509 INFO L137 encePairwiseOnDemand]: 227/231 looper letters, 18 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2022-11-20 12:20:40,509 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 187 transitions, 455 flow [2022-11-20 12:20:40,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:40,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 621 transitions. [2022-11-20 12:20:40,512 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8961038961038961 [2022-11-20 12:20:40,513 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 621 transitions. [2022-11-20 12:20:40,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 621 transitions. [2022-11-20 12:20:40,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:40,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 621 transitions. [2022-11-20 12:20:40,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.0) internal successors, (621), 3 states have internal predecessors, (621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,519 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,519 INFO L175 Difference]: Start difference. First operand has 184 places, 186 transitions, 412 flow. Second operand 3 states and 621 transitions. [2022-11-20 12:20:40,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 187 transitions, 455 flow [2022-11-20 12:20:40,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 187 transitions, 452 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:20:40,526 INFO L231 Difference]: Finished difference. Result has 184 places, 186 transitions, 419 flow [2022-11-20 12:20:40,527 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=419, PETRI_PLACES=184, PETRI_TRANSITIONS=186} [2022-11-20 12:20:40,527 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -25 predicate places. [2022-11-20 12:20:40,528 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 186 transitions, 419 flow [2022-11-20 12:20:40,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,529 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:40,529 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] [2022-11-20 12:20:40,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:20:40,529 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:40,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:40,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1003185752, now seen corresponding path program 1 times [2022-11-20 12:20:40,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:40,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367118746] [2022-11-20 12:20:40,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:40,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:40,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:40,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:40,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367118746] [2022-11-20 12:20:40,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367118746] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:40,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:40,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:40,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682155292] [2022-11-20 12:20:40,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:40,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:40,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:40,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:40,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:40,590 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 231 [2022-11-20 12:20:40,591 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 186 transitions, 419 flow. Second operand has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,591 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:40,591 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 231 [2022-11-20 12:20:40,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:40,734 INFO L130 PetriNetUnfolder]: 74/578 cut-off events. [2022-11-20 12:20:40,734 INFO L131 PetriNetUnfolder]: For 55/71 co-relation queries the response was YES. [2022-11-20 12:20:40,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 824 conditions, 578 events. 74/578 cut-off events. For 55/71 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2771 event pairs, 10 based on Foata normal form. 4/506 useless extension candidates. Maximal degree in co-relation 428. Up to 74 conditions per place. [2022-11-20 12:20:40,739 INFO L137 encePairwiseOnDemand]: 227/231 looper letters, 23 selfloop transitions, 2 changer transitions 0/189 dead transitions. [2022-11-20 12:20:40,739 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 189 transitions, 484 flow [2022-11-20 12:20:40,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:40,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:40,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 615 transitions. [2022-11-20 12:20:40,742 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8874458874458875 [2022-11-20 12:20:40,742 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 615 transitions. [2022-11-20 12:20:40,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 615 transitions. [2022-11-20 12:20:40,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:40,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 615 transitions. [2022-11-20 12:20:40,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,747 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,747 INFO L175 Difference]: Start difference. First operand has 184 places, 186 transitions, 419 flow. Second operand 3 states and 615 transitions. [2022-11-20 12:20:40,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 189 transitions, 484 flow [2022-11-20 12:20:40,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 189 transitions, 484 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:20:40,753 INFO L231 Difference]: Finished difference. Result has 184 places, 184 transitions, 419 flow [2022-11-20 12:20:40,754 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=415, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=419, PETRI_PLACES=184, PETRI_TRANSITIONS=184} [2022-11-20 12:20:40,755 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -25 predicate places. [2022-11-20 12:20:40,755 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 184 transitions, 419 flow [2022-11-20 12:20:40,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,756 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:40,756 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] [2022-11-20 12:20:40,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:20:40,757 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:40,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:40,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1272746429, now seen corresponding path program 1 times [2022-11-20 12:20:40,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:40,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693162613] [2022-11-20 12:20:40,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:40,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:40,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:40,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:40,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:40,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693162613] [2022-11-20 12:20:40,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693162613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:40,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:40,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:40,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678515671] [2022-11-20 12:20:40,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:40,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:40,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:40,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:40,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:40,814 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 231 [2022-11-20 12:20:40,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 184 transitions, 419 flow. Second operand has 3 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:40,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 231 [2022-11-20 12:20:40,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:40,934 INFO L130 PetriNetUnfolder]: 64/478 cut-off events. [2022-11-20 12:20:40,934 INFO L131 PetriNetUnfolder]: For 62/66 co-relation queries the response was YES. [2022-11-20 12:20:40,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 478 events. 64/478 cut-off events. For 62/66 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2054 event pairs, 6 based on Foata normal form. 1/427 useless extension candidates. Maximal degree in co-relation 364. Up to 57 conditions per place. [2022-11-20 12:20:40,938 INFO L137 encePairwiseOnDemand]: 227/231 looper letters, 23 selfloop transitions, 2 changer transitions 0/187 dead transitions. [2022-11-20 12:20:40,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 187 transitions, 484 flow [2022-11-20 12:20:40,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:40,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:40,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 615 transitions. [2022-11-20 12:20:40,941 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8874458874458875 [2022-11-20 12:20:40,941 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 615 transitions. [2022-11-20 12:20:40,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 615 transitions. [2022-11-20 12:20:40,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:40,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 615 transitions. [2022-11-20 12:20:40,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 205.0) internal successors, (615), 3 states have internal predecessors, (615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,946 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,946 INFO L175 Difference]: Start difference. First operand has 184 places, 184 transitions, 419 flow. Second operand 3 states and 615 transitions. [2022-11-20 12:20:40,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 187 transitions, 484 flow [2022-11-20 12:20:40,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 187 transitions, 480 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:40,951 INFO L231 Difference]: Finished difference. Result has 182 places, 182 transitions, 415 flow [2022-11-20 12:20:40,952 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=415, PETRI_PLACES=182, PETRI_TRANSITIONS=182} [2022-11-20 12:20:40,952 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -27 predicate places. [2022-11-20 12:20:40,953 INFO L495 AbstractCegarLoop]: Abstraction has has 182 places, 182 transitions, 415 flow [2022-11-20 12:20:40,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:40,953 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:40,954 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] [2022-11-20 12:20:40,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:20:40,954 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:40,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:40,955 INFO L85 PathProgramCache]: Analyzing trace with hash -399195454, now seen corresponding path program 1 times [2022-11-20 12:20:40,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:40,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302198690] [2022-11-20 12:20:40,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:40,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:41,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:41,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:41,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302198690] [2022-11-20 12:20:41,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302198690] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:41,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:41,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:20:41,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115773816] [2022-11-20 12:20:41,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:41,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:20:41,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:41,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:20:41,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:20:41,477 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 231 [2022-11-20 12:20:41,479 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 182 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 193.83333333333334) internal successors, (1163), 6 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:41,479 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:41,480 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 231 [2022-11-20 12:20:41,480 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:41,748 INFO L130 PetriNetUnfolder]: 200/688 cut-off events. [2022-11-20 12:20:41,748 INFO L131 PetriNetUnfolder]: For 192/206 co-relation queries the response was YES. [2022-11-20 12:20:41,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1231 conditions, 688 events. 200/688 cut-off events. For 192/206 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2938 event pairs, 18 based on Foata normal form. 8/597 useless extension candidates. Maximal degree in co-relation 706. Up to 195 conditions per place. [2022-11-20 12:20:41,754 INFO L137 encePairwiseOnDemand]: 226/231 looper letters, 54 selfloop transitions, 4 changer transitions 0/213 dead transitions. [2022-11-20 12:20:41,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 186 places, 213 transitions, 657 flow [2022-11-20 12:20:41,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:20:41,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:20:41,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1191 transitions. [2022-11-20 12:20:41,758 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8593073593073594 [2022-11-20 12:20:41,758 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1191 transitions. [2022-11-20 12:20:41,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1191 transitions. [2022-11-20 12:20:41,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:41,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1191 transitions. [2022-11-20 12:20:41,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 198.5) internal successors, (1191), 6 states have internal predecessors, (1191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:41,765 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:41,768 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:41,769 INFO L175 Difference]: Start difference. First operand has 182 places, 182 transitions, 415 flow. Second operand 6 states and 1191 transitions. [2022-11-20 12:20:41,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 186 places, 213 transitions, 657 flow [2022-11-20 12:20:41,772 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 213 transitions, 653 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:41,776 INFO L231 Difference]: Finished difference. Result has 184 places, 181 transitions, 417 flow [2022-11-20 12:20:41,776 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=409, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=417, PETRI_PLACES=184, PETRI_TRANSITIONS=181} [2022-11-20 12:20:41,777 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -25 predicate places. [2022-11-20 12:20:41,778 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 181 transitions, 417 flow [2022-11-20 12:20:41,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 193.83333333333334) internal successors, (1163), 6 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:41,779 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:41,779 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] [2022-11-20 12:20:41,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:20:41,779 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:41,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:41,780 INFO L85 PathProgramCache]: Analyzing trace with hash 733350339, now seen corresponding path program 1 times [2022-11-20 12:20:41,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:41,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934036464] [2022-11-20 12:20:41,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:41,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:41,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:41,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:41,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934036464] [2022-11-20 12:20:41,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934036464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:41,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:41,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:41,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609070199] [2022-11-20 12:20:41,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:41,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:41,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:41,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:41,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:41,829 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 231 [2022-11-20 12:20:41,830 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 181 transitions, 417 flow. Second operand has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:41,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:41,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 231 [2022-11-20 12:20:41,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:41,958 INFO L130 PetriNetUnfolder]: 81/618 cut-off events. [2022-11-20 12:20:41,958 INFO L131 PetriNetUnfolder]: For 57/71 co-relation queries the response was YES. [2022-11-20 12:20:41,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 897 conditions, 618 events. 81/618 cut-off events. For 57/71 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 3103 event pairs, 26 based on Foata normal form. 2/556 useless extension candidates. Maximal degree in co-relation 781. Up to 116 conditions per place. [2022-11-20 12:20:41,963 INFO L137 encePairwiseOnDemand]: 228/231 looper letters, 22 selfloop transitions, 2 changer transitions 0/183 dead transitions. [2022-11-20 12:20:41,964 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 183 transitions, 474 flow [2022-11-20 12:20:41,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:41,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:41,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 609 transitions. [2022-11-20 12:20:41,966 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2022-11-20 12:20:41,967 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 609 transitions. [2022-11-20 12:20:41,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 609 transitions. [2022-11-20 12:20:41,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:41,968 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 609 transitions. [2022-11-20 12:20:41,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:41,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:41,972 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:41,972 INFO L175 Difference]: Start difference. First operand has 184 places, 181 transitions, 417 flow. Second operand 3 states and 609 transitions. [2022-11-20 12:20:41,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 183 transitions, 474 flow [2022-11-20 12:20:41,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 183 transitions, 467 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:20:41,977 INFO L231 Difference]: Finished difference. Result has 181 places, 180 transitions, 412 flow [2022-11-20 12:20:41,977 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=412, PETRI_PLACES=181, PETRI_TRANSITIONS=180} [2022-11-20 12:20:41,978 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -28 predicate places. [2022-11-20 12:20:41,979 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 180 transitions, 412 flow [2022-11-20 12:20:41,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:41,979 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:41,979 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] [2022-11-20 12:20:41,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:20:41,980 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:41,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:41,981 INFO L85 PathProgramCache]: Analyzing trace with hash -928044114, now seen corresponding path program 1 times [2022-11-20 12:20:41,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:41,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140116450] [2022-11-20 12:20:41,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:41,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:42,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:42,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:42,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140116450] [2022-11-20 12:20:42,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140116450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:42,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:42,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:42,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557677818] [2022-11-20 12:20:42,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:42,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:42,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:42,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:42,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:42,039 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 231 [2022-11-20 12:20:42,040 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 180 transitions, 412 flow. Second operand has 3 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:42,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:42,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 231 [2022-11-20 12:20:42,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:42,125 INFO L130 PetriNetUnfolder]: 67/471 cut-off events. [2022-11-20 12:20:42,125 INFO L131 PetriNetUnfolder]: For 65/69 co-relation queries the response was YES. [2022-11-20 12:20:42,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 692 conditions, 471 events. 67/471 cut-off events. For 65/69 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1997 event pairs, 14 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 532. Up to 100 conditions per place. [2022-11-20 12:20:42,129 INFO L137 encePairwiseOnDemand]: 228/231 looper letters, 22 selfloop transitions, 2 changer transitions 0/182 dead transitions. [2022-11-20 12:20:42,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 182 transitions, 469 flow [2022-11-20 12:20:42,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:42,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:42,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 609 transitions. [2022-11-20 12:20:42,131 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2022-11-20 12:20:42,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 609 transitions. [2022-11-20 12:20:42,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 609 transitions. [2022-11-20 12:20:42,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:42,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 609 transitions. [2022-11-20 12:20:42,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:42,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:42,136 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:42,136 INFO L175 Difference]: Start difference. First operand has 181 places, 180 transitions, 412 flow. Second operand 3 states and 609 transitions. [2022-11-20 12:20:42,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 182 transitions, 469 flow [2022-11-20 12:20:42,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 182 transitions, 465 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:42,140 INFO L231 Difference]: Finished difference. Result has 180 places, 179 transitions, 410 flow [2022-11-20 12:20:42,140 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=410, PETRI_PLACES=180, PETRI_TRANSITIONS=179} [2022-11-20 12:20:42,143 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -29 predicate places. [2022-11-20 12:20:42,143 INFO L495 AbstractCegarLoop]: Abstraction has has 180 places, 179 transitions, 410 flow [2022-11-20 12:20:42,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:42,144 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:42,144 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] [2022-11-20 12:20:42,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:20:42,145 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:42,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:42,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1466888232, now seen corresponding path program 1 times [2022-11-20 12:20:42,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:42,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297545012] [2022-11-20 12:20:42,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:42,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:42,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:42,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:42,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297545012] [2022-11-20 12:20:42,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297545012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:42,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:42,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:42,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050230936] [2022-11-20 12:20:42,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:42,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:42,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:42,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:42,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:42,208 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 231 [2022-11-20 12:20:42,210 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 179 transitions, 410 flow. Second operand has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:42,210 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:42,210 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 231 [2022-11-20 12:20:42,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:42,345 INFO L130 PetriNetUnfolder]: 82/544 cut-off events. [2022-11-20 12:20:42,345 INFO L131 PetriNetUnfolder]: For 63/71 co-relation queries the response was YES. [2022-11-20 12:20:42,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 829 conditions, 544 events. 82/544 cut-off events. For 63/71 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2445 event pairs, 26 based on Foata normal form. 0/495 useless extension candidates. Maximal degree in co-relation 724. Up to 123 conditions per place. [2022-11-20 12:20:42,349 INFO L137 encePairwiseOnDemand]: 228/231 looper letters, 25 selfloop transitions, 2 changer transitions 0/181 dead transitions. [2022-11-20 12:20:42,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 181 transitions, 473 flow [2022-11-20 12:20:42,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:42,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:42,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2022-11-20 12:20:42,352 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8686868686868687 [2022-11-20 12:20:42,352 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 602 transitions. [2022-11-20 12:20:42,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 602 transitions. [2022-11-20 12:20:42,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:42,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 602 transitions. [2022-11-20 12:20:42,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:42,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:42,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:42,358 INFO L175 Difference]: Start difference. First operand has 180 places, 179 transitions, 410 flow. Second operand 3 states and 602 transitions. [2022-11-20 12:20:42,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 181 transitions, 473 flow [2022-11-20 12:20:42,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 181 transitions, 469 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:42,363 INFO L231 Difference]: Finished difference. Result has 179 places, 178 transitions, 408 flow [2022-11-20 12:20:42,364 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=179, PETRI_TRANSITIONS=178} [2022-11-20 12:20:42,364 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -30 predicate places. [2022-11-20 12:20:42,365 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 178 transitions, 408 flow [2022-11-20 12:20:42,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.33333333333334) internal successors, (592), 3 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:42,365 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:42,366 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] [2022-11-20 12:20:42,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:20:42,366 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:42,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:42,367 INFO L85 PathProgramCache]: Analyzing trace with hash 12974943, now seen corresponding path program 1 times [2022-11-20 12:20:42,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:42,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187402419] [2022-11-20 12:20:42,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:42,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:43,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:43,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:43,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187402419] [2022-11-20 12:20:43,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187402419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:43,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:43,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:20:43,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306707535] [2022-11-20 12:20:43,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:43,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:20:43,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:43,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:20:43,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:20:43,025 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 231 [2022-11-20 12:20:43,028 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 178 transitions, 408 flow. Second operand has 6 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:43,028 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:43,028 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 231 [2022-11-20 12:20:43,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:43,221 INFO L130 PetriNetUnfolder]: 168/566 cut-off events. [2022-11-20 12:20:43,222 INFO L131 PetriNetUnfolder]: For 166/180 co-relation queries the response was YES. [2022-11-20 12:20:43,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1034 conditions, 566 events. 168/566 cut-off events. For 166/180 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2216 event pairs, 32 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 768. Up to 202 conditions per place. [2022-11-20 12:20:43,227 INFO L137 encePairwiseOnDemand]: 226/231 looper letters, 37 selfloop transitions, 4 changer transitions 0/193 dead transitions. [2022-11-20 12:20:43,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 193 transitions, 552 flow [2022-11-20 12:20:43,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:20:43,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:20:43,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1182 transitions. [2022-11-20 12:20:43,231 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8528138528138528 [2022-11-20 12:20:43,231 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1182 transitions. [2022-11-20 12:20:43,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1182 transitions. [2022-11-20 12:20:43,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:43,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1182 transitions. [2022-11-20 12:20:43,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 197.0) internal successors, (1182), 6 states have internal predecessors, (1182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:43,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:43,259 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 231.0) internal successors, (1617), 7 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:43,259 INFO L175 Difference]: Start difference. First operand has 179 places, 178 transitions, 408 flow. Second operand 6 states and 1182 transitions. [2022-11-20 12:20:43,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 193 transitions, 552 flow [2022-11-20 12:20:43,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 193 transitions, 548 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:20:43,264 INFO L231 Difference]: Finished difference. Result has 181 places, 177 transitions, 410 flow [2022-11-20 12:20:43,264 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=410, PETRI_PLACES=181, PETRI_TRANSITIONS=177} [2022-11-20 12:20:43,265 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -28 predicate places. [2022-11-20 12:20:43,266 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 177 transitions, 410 flow [2022-11-20 12:20:43,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 194.83333333333334) internal successors, (1169), 6 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:43,267 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:20:43,267 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] [2022-11-20 12:20:43,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:20:43,267 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2022-11-20 12:20:43,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:20:43,268 INFO L85 PathProgramCache]: Analyzing trace with hash -615568365, now seen corresponding path program 1 times [2022-11-20 12:20:43,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:20:43,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410385319] [2022-11-20 12:20:43,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:20:43,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:20:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:20:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:20:43,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:20:43,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410385319] [2022-11-20 12:20:43,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410385319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:20:43,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:20:43,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:20:43,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259074436] [2022-11-20 12:20:43,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:20:43,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:20:43,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:20:43,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:20:43,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:20:43,327 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 231 [2022-11-20 12:20:43,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 177 transitions, 410 flow. Second operand has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:43,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:20:43,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 231 [2022-11-20 12:20:43,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:20:43,438 INFO L130 PetriNetUnfolder]: 75/485 cut-off events. [2022-11-20 12:20:43,439 INFO L131 PetriNetUnfolder]: For 76/78 co-relation queries the response was YES. [2022-11-20 12:20:43,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 485 events. 75/485 cut-off events. For 76/78 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2037 event pairs, 13 based on Foata normal form. 0/441 useless extension candidates. Maximal degree in co-relation 695. Up to 110 conditions per place. [2022-11-20 12:20:43,441 INFO L137 encePairwiseOnDemand]: 228/231 looper letters, 0 selfloop transitions, 0 changer transitions 179/179 dead transitions. [2022-11-20 12:20:43,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 179 transitions, 473 flow [2022-11-20 12:20:43,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:20:43,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:20:43,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 602 transitions. [2022-11-20 12:20:43,444 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8686868686868687 [2022-11-20 12:20:43,444 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 602 transitions. [2022-11-20 12:20:43,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 602 transitions. [2022-11-20 12:20:43,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:20:43,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 602 transitions. [2022-11-20 12:20:43,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.66666666666666) internal successors, (602), 3 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:43,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:43,449 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 231.0) internal successors, (924), 4 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:43,449 INFO L175 Difference]: Start difference. First operand has 181 places, 177 transitions, 410 flow. Second operand 3 states and 602 transitions. [2022-11-20 12:20:43,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 179 transitions, 473 flow [2022-11-20 12:20:43,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 179 transitions, 466 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:20:43,453 INFO L231 Difference]: Finished difference. Result has 178 places, 0 transitions, 0 flow [2022-11-20 12:20:43,454 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=231, PETRI_DIFFERENCE_MINUEND_FLOW=401, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=178, PETRI_TRANSITIONS=0} [2022-11-20 12:20:43,454 INFO L288 CegarLoopForPetriNet]: 209 programPoint places, -31 predicate places. [2022-11-20 12:20:43,454 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 0 transitions, 0 flow [2022-11-20 12:20:43,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 197.0) internal successors, (591), 3 states have internal predecessors, (591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:20:43,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (59 of 60 remaining) [2022-11-20 12:20:43,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2022-11-20 12:20:43,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2022-11-20 12:20:43,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2022-11-20 12:20:43,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2022-11-20 12:20:43,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2022-11-20 12:20:43,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2022-11-20 12:20:43,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2022-11-20 12:20:43,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2022-11-20 12:20:43,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2022-11-20 12:20:43,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2022-11-20 12:20:43,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2022-11-20 12:20:43,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2022-11-20 12:20:43,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2022-11-20 12:20:43,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2022-11-20 12:20:43,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2022-11-20 12:20:43,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2022-11-20 12:20:43,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2022-11-20 12:20:43,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2022-11-20 12:20:43,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2022-11-20 12:20:43,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2022-11-20 12:20:43,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2022-11-20 12:20:43,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2022-11-20 12:20:43,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2022-11-20 12:20:43,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2022-11-20 12:20:43,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2022-11-20 12:20:43,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2022-11-20 12:20:43,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2022-11-20 12:20:43,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2022-11-20 12:20:43,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2022-11-20 12:20:43,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2022-11-20 12:20:43,470 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2022-11-20 12:20:43,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2022-11-20 12:20:43,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2022-11-20 12:20:43,471 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2022-11-20 12:20:43,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2022-11-20 12:20:43,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 60 remaining) [2022-11-20 12:20:43,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 60 remaining) [2022-11-20 12:20:43,472 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2022-11-20 12:20:43,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2022-11-20 12:20:43,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2022-11-20 12:20:43,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2022-11-20 12:20:43,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2022-11-20 12:20:43,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2022-11-20 12:20:43,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2022-11-20 12:20:43,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2022-11-20 12:20:43,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2022-11-20 12:20:43,474 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2022-11-20 12:20:43,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2022-11-20 12:20:43,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2022-11-20 12:20:43,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2022-11-20 12:20:43,475 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2022-11-20 12:20:43,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2022-11-20 12:20:43,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2022-11-20 12:20:43,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2022-11-20 12:20:43,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2022-11-20 12:20:43,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2022-11-20 12:20:43,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2022-11-20 12:20:43,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2022-11-20 12:20:43,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2022-11-20 12:20:43,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 12:20:43,478 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:20:43,487 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:20:43,487 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:20:43,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:20:43 BasicIcfg [2022-11-20 12:20:43,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:20:43,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:20:43,496 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:20:43,497 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:20:43,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:20:37" (3/4) ... [2022-11-20 12:20:43,501 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:20:43,508 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 12:20:43,508 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 12:20:43,520 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-11-20 12:20:43,520 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 12:20:43,521 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:20:43,521 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:20:43,590 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:20:43,590 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:20:43,591 INFO L158 Benchmark]: Toolchain (without parser) took 7624.89ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 145.4MB in the beginning and 130.6MB in the end (delta: 14.8MB). Peak memory consumption was 97.0MB. Max. memory is 16.1GB. [2022-11-20 12:20:43,592 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:20:43,592 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.16ms. Allocated memory is still 180.4MB. Free memory was 144.9MB in the beginning and 133.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 12:20:43,593 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.19ms. Allocated memory is still 180.4MB. Free memory was 133.4MB in the beginning and 131.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:20:43,593 INFO L158 Benchmark]: Boogie Preprocessor took 36.42ms. Allocated memory is still 180.4MB. Free memory was 131.7MB in the beginning and 130.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:20:43,594 INFO L158 Benchmark]: RCFGBuilder took 1056.73ms. Allocated memory is still 180.4MB. Free memory was 129.7MB in the beginning and 105.0MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 12:20:43,595 INFO L158 Benchmark]: TraceAbstraction took 6013.46ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 104.5MB in the beginning and 134.8MB in the end (delta: -30.3MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2022-11-20 12:20:43,596 INFO L158 Benchmark]: Witness Printer took 94.38ms. Allocated memory is still 262.1MB. Free memory was 134.8MB in the beginning and 130.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:20:43,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.16ms. Allocated memory is still 180.4MB. Free memory was 144.9MB in the beginning and 133.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.19ms. Allocated memory is still 180.4MB. Free memory was 133.4MB in the beginning and 131.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.42ms. Allocated memory is still 180.4MB. Free memory was 131.7MB in the beginning and 130.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1056.73ms. Allocated memory is still 180.4MB. Free memory was 129.7MB in the beginning and 105.0MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 6013.46ms. Allocated memory was 180.4MB in the beginning and 262.1MB in the end (delta: 81.8MB). Free memory was 104.5MB in the beginning and 134.8MB in the end (delta: -30.3MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. * Witness Printer took 94.38ms. Allocated memory is still 262.1MB. Free memory was 134.8MB in the beginning and 130.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 45]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 304 locations, 60 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.8s, OverallIterations: 18, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 103 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 181 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 529 IncrementalHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 181 mSDtfsCounter, 529 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=434occurred in iteration=0, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1257 NumberOfCodeBlocks, 1257 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1239 ConstructedInterpolants, 0 QuantifiedInterpolants, 1433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:20:43,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_601ac8a1-0ceb-4f43-b456-9ee50d1816a6/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE