./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/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_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/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_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/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 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 --- 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 11:51:14,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:51:14,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:51:14,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:51:14,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:51:14,263 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:51:14,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:51:14,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:51:14,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:51:14,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:51:14,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:51:14,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:51:14,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:51:14,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:51:14,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:51:14,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:51:14,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:51:14,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:51:14,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:51:14,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:51:14,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:51:14,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:51:14,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:51:14,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:51:14,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:51:14,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:51:14,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:51:14,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:51:14,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:51:14,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:51:14,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:51:14,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:51:14,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:51:14,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:51:14,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:51:14,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:51:14,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:51:14,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:51:14,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:51:14,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:51:14,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:51:14,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:51:14,330 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:51:14,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:51:14,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:51:14,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:51:14,332 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:51:14,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:51:14,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:51:14,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:51:14,334 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:51:14,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:51:14,335 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:51:14,335 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:51:14,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:51:14,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:51:14,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:51:14,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:51:14,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:51:14,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:51:14,337 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:51:14,337 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:51:14,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:51:14,337 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:51:14,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:51:14,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:51:14,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:51:14,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:51:14,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:51:14,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:51:14,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:51:14,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:51:14,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:51:14,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:51:14,340 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:51:14,340 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:51:14,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:51:14,341 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_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e185f9c0dac86cdbb29caae2de39811a090d813c08c4c3552062c2aa77b8788 [2022-11-20 11:51:14,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:51:14,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:51:14,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:51:14,652 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:51:14,653 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:51:14,654 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-20 11:51:18,000 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:51:18,229 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:51:18,229 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c [2022-11-20 11:51:18,237 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/data/cb00ca64c/f2cb5a289aee4ce486b31f0a1ed8015d/FLAG0a256216a [2022-11-20 11:51:18,267 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/data/cb00ca64c/f2cb5a289aee4ce486b31f0a1ed8015d [2022-11-20 11:51:18,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:51:18,271 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:51:18,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:51:18,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:51:18,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:51:18,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64499c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18, skipping insertion in model container [2022-11-20 11:51:18,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:51:18,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:51:18,538 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_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-20 11:51:18,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:51:18,557 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:51:18,599 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_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/sv-benchmarks/c/weaver/popl20-three-array-min.wvr.c[2815,2828] [2022-11-20 11:51:18,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:51:18,621 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:51:18,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18 WrapperNode [2022-11-20 11:51:18,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:51:18,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:51:18,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:51:18,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:51:18,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,699 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 371 [2022-11-20 11:51:18,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:51:18,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:51:18,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:51:18,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:51:18,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,709 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,750 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:51:18,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:51:18,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:51:18,760 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:51:18,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (1/1) ... [2022-11-20 11:51:18,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:51:18,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:51:18,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:51:18,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:51:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:51:18,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:51:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:51:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:51:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 11:51:18,894 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 11:51:18,894 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 11:51:18,895 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 11:51:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 11:51:18,895 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 11:51:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:51:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 11:51:18,895 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 11:51:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:51:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:51:18,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:51:18,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:51:18,898 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 11:51:19,079 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:51:19,081 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:51:20,333 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:51:20,549 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:51:20,550 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 11:51:20,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:51:20 BoogieIcfgContainer [2022-11-20 11:51:20,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:51:20,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:51:20,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:51:20,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:51:20,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:51:18" (1/3) ... [2022-11-20 11:51:20,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c7be6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:51:20, skipping insertion in model container [2022-11-20 11:51:20,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:51:18" (2/3) ... [2022-11-20 11:51:20,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c7be6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:51:20, skipping insertion in model container [2022-11-20 11:51:20,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:51:20" (3/3) ... [2022-11-20 11:51:20,563 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-min.wvr.c [2022-11-20 11:51:20,573 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:51:20,584 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:51:20,585 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2022-11-20 11:51:20,585 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:51:20,747 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 11:51:20,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 528 transitions, 1080 flow [2022-11-20 11:51:21,069 INFO L130 PetriNetUnfolder]: 27/525 cut-off events. [2022-11-20 11:51:21,070 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 11:51:21,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 525 events. 27/525 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 623 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 421. Up to 3 conditions per place. [2022-11-20 11:51:21,079 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 528 transitions, 1080 flow [2022-11-20 11:51:21,094 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 464 places, 478 transitions, 974 flow [2022-11-20 11:51:21,114 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:51:21,124 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;@2aebf905, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:51:21,125 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-11-20 11:51:21,131 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2022-11-20 11:51:21,131 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:51:21,131 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:21,132 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] [2022-11-20 11:51:21,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:21,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:21,141 INFO L85 PathProgramCache]: Analyzing trace with hash -769325671, now seen corresponding path program 1 times [2022-11-20 11:51:21,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:21,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647158187] [2022-11-20 11:51:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:21,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:21,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:21,437 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 11:51:21,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:21,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647158187] [2022-11-20 11:51:21,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647158187] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:21,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:21,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:21,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689847159] [2022-11-20 11:51:21,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:21,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:21,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:21,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:21,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:21,511 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 528 [2022-11-20 11:51:21,522 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 478 transitions, 974 flow. Second operand has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states 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 11:51:21,523 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:21,523 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 528 [2022-11-20 11:51:21,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:22,235 INFO L130 PetriNetUnfolder]: 390/1591 cut-off events. [2022-11-20 11:51:22,236 INFO L131 PetriNetUnfolder]: For 140/293 co-relation queries the response was YES. [2022-11-20 11:51:22,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2229 conditions, 1591 events. 390/1591 cut-off events. For 140/293 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 9169 event pairs, 255 based on Foata normal form. 12/1253 useless extension candidates. Maximal degree in co-relation 1742. Up to 545 conditions per place. [2022-11-20 11:51:22,261 INFO L137 encePairwiseOnDemand]: 496/528 looper letters, 33 selfloop transitions, 2 changer transitions 9/448 dead transitions. [2022-11-20 11:51:22,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 448 transitions, 984 flow [2022-11-20 11:51:22,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:22,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:22,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-20 11:51:22,289 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9103535353535354 [2022-11-20 11:51:22,290 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-20 11:51:22,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-20 11:51:22,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:22,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-20 11:51:22,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states 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 11:51:22,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:22,316 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:22,318 INFO L175 Difference]: Start difference. First operand has 464 places, 478 transitions, 974 flow. Second operand 3 states and 1442 transitions. [2022-11-20 11:51:22,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 448 transitions, 984 flow [2022-11-20 11:51:22,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 448 transitions, 972 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 11:51:22,335 INFO L231 Difference]: Finished difference. Result has 445 places, 439 transitions, 888 flow [2022-11-20 11:51:22,338 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=888, PETRI_PLACES=445, PETRI_TRANSITIONS=439} [2022-11-20 11:51:22,341 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -19 predicate places. [2022-11-20 11:51:22,342 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 439 transitions, 888 flow [2022-11-20 11:51:22,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states 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 11:51:22,343 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:22,344 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] [2022-11-20 11:51:22,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:51:22,344 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:22,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:22,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1999339951, now seen corresponding path program 1 times [2022-11-20 11:51:22,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:22,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476237498] [2022-11-20 11:51:22,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:22,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:22,461 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 11:51:22,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:22,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476237498] [2022-11-20 11:51:22,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476237498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:22,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:22,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:22,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114182710] [2022-11-20 11:51:22,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:22,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:22,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:22,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:22,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:22,476 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 528 [2022-11-20 11:51:22,478 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 439 transitions, 888 flow. Second operand has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:22,478 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:22,478 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 528 [2022-11-20 11:51:22,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:22,972 INFO L130 PetriNetUnfolder]: 223/1238 cut-off events. [2022-11-20 11:51:22,972 INFO L131 PetriNetUnfolder]: For 27/107 co-relation queries the response was YES. [2022-11-20 11:51:22,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 1238 events. 223/1238 cut-off events. For 27/107 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6564 event pairs, 128 based on Foata normal form. 0/1045 useless extension candidates. Maximal degree in co-relation 1523. Up to 299 conditions per place. [2022-11-20 11:51:22,988 INFO L137 encePairwiseOnDemand]: 520/528 looper letters, 24 selfloop transitions, 1 changer transitions 0/432 dead transitions. [2022-11-20 11:51:22,989 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 432 transitions, 924 flow [2022-11-20 11:51:22,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:22,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:22,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1418 transitions. [2022-11-20 11:51:23,030 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8952020202020202 [2022-11-20 11:51:23,030 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1418 transitions. [2022-11-20 11:51:23,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1418 transitions. [2022-11-20 11:51:23,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:23,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1418 transitions. [2022-11-20 11:51:23,037 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 472.6666666666667) internal successors, (1418), 3 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states 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 11:51:23,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:23,043 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:23,043 INFO L175 Difference]: Start difference. First operand has 445 places, 439 transitions, 888 flow. Second operand 3 states and 1418 transitions. [2022-11-20 11:51:23,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 432 transitions, 924 flow [2022-11-20 11:51:23,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 432 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:23,055 INFO L231 Difference]: Finished difference. Result has 429 places, 432 transitions, 872 flow [2022-11-20 11:51:23,056 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=872, PETRI_PLACES=429, PETRI_TRANSITIONS=432} [2022-11-20 11:51:23,057 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-20 11:51:23,058 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 432 transitions, 872 flow [2022-11-20 11:51:23,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:23,059 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:23,059 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] [2022-11-20 11:51:23,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:51:23,060 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:23,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:23,061 INFO L85 PathProgramCache]: Analyzing trace with hash 957015581, now seen corresponding path program 1 times [2022-11-20 11:51:23,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:23,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702369966] [2022-11-20 11:51:23,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:23,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:23,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:51:23,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:23,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702369966] [2022-11-20 11:51:23,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702369966] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:23,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:23,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:23,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723407556] [2022-11-20 11:51:23,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:23,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:23,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:23,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:23,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:23,272 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 528 [2022-11-20 11:51:23,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 432 transitions, 872 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 11:51:23,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:23,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 528 [2022-11-20 11:51:23,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:23,808 INFO L130 PetriNetUnfolder]: 157/1366 cut-off events. [2022-11-20 11:51:23,808 INFO L131 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2022-11-20 11:51:23,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1366 events. 157/1366 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7560 event pairs, 78 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 1569. Up to 212 conditions per place. [2022-11-20 11:51:23,820 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 24 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2022-11-20 11:51:23,820 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 431 transitions, 922 flow [2022-11-20 11:51:23,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:23,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:23,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-20 11:51:23,829 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-20 11:51:23,829 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-20 11:51:23,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-20 11:51:23,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:23,830 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-20 11:51:23,834 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states 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 11:51:23,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:23,839 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:23,840 INFO L175 Difference]: Start difference. First operand has 429 places, 432 transitions, 872 flow. Second operand 3 states and 1431 transitions. [2022-11-20 11:51:23,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 431 transitions, 922 flow [2022-11-20 11:51:23,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 431 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:51:23,849 INFO L231 Difference]: Finished difference. Result has 429 places, 431 transitions, 873 flow [2022-11-20 11:51:23,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=873, PETRI_PLACES=429, PETRI_TRANSITIONS=431} [2022-11-20 11:51:23,851 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-20 11:51:23,851 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 431 transitions, 873 flow [2022-11-20 11:51:23,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 11:51:23,852 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:23,853 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] [2022-11-20 11:51:23,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:51:23,853 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:23,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:23,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1250926964, now seen corresponding path program 1 times [2022-11-20 11:51:23,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:23,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678762699] [2022-11-20 11:51:23,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:23,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:24,529 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 11:51:24,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:24,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678762699] [2022-11-20 11:51:24,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678762699] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:24,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:24,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:24,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77164146] [2022-11-20 11:51:24,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:24,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:51:24,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:24,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:51:24,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:51:24,535 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 528 [2022-11-20 11:51:24,538 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 431 transitions, 873 flow. Second operand has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states 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 11:51:24,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:24,539 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 528 [2022-11-20 11:51:24,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:27,354 INFO L130 PetriNetUnfolder]: 2943/6619 cut-off events. [2022-11-20 11:51:27,354 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 11:51:27,385 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10839 conditions, 6619 events. 2943/6619 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 52733 event pairs, 2244 based on Foata normal form. 0/5702 useless extension candidates. Maximal degree in co-relation 10804. Up to 4124 conditions per place. [2022-11-20 11:51:27,432 INFO L137 encePairwiseOnDemand]: 510/528 looper letters, 108 selfloop transitions, 15 changer transitions 0/428 dead transitions. [2022-11-20 11:51:27,432 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 428 transitions, 1113 flow [2022-11-20 11:51:27,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:51:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:51:27,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2340 transitions. [2022-11-20 11:51:27,444 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7386363636363636 [2022-11-20 11:51:27,445 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2340 transitions. [2022-11-20 11:51:27,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2340 transitions. [2022-11-20 11:51:27,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:27,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2340 transitions. [2022-11-20 11:51:27,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 390.0) internal successors, (2340), 6 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states 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 11:51:27,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:51:27,462 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:51:27,462 INFO L175 Difference]: Start difference. First operand has 429 places, 431 transitions, 873 flow. Second operand 6 states and 2340 transitions. [2022-11-20 11:51:27,463 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 428 transitions, 1113 flow [2022-11-20 11:51:27,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 428 transitions, 1109 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:27,479 INFO L231 Difference]: Finished difference. Result has 429 places, 428 transitions, 893 flow [2022-11-20 11:51:27,480 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=863, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=893, PETRI_PLACES=429, PETRI_TRANSITIONS=428} [2022-11-20 11:51:27,482 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-20 11:51:27,482 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 428 transitions, 893 flow [2022-11-20 11:51:27,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states 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 11:51:27,484 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:27,485 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] [2022-11-20 11:51:27,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:51:27,485 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:27,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:27,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1587191139, now seen corresponding path program 1 times [2022-11-20 11:51:27,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:27,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521917833] [2022-11-20 11:51:27,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:27,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:27,596 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 11:51:27,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:27,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521917833] [2022-11-20 11:51:27,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521917833] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:27,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:27,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:27,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896167812] [2022-11-20 11:51:27,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:27,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:27,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:27,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:27,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:27,601 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 528 [2022-11-20 11:51:27,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 428 transitions, 893 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 11:51:27,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:27,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 528 [2022-11-20 11:51:27,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:28,061 INFO L130 PetriNetUnfolder]: 154/1308 cut-off events. [2022-11-20 11:51:28,062 INFO L131 PetriNetUnfolder]: For 20/23 co-relation queries the response was YES. [2022-11-20 11:51:28,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1308 events. 154/1308 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6943 event pairs, 78 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1520. Up to 206 conditions per place. [2022-11-20 11:51:28,076 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 24 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-20 11:51:28,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 427 transitions, 943 flow [2022-11-20 11:51:28,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:28,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:28,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-20 11:51:28,080 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-20 11:51:28,080 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-20 11:51:28,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-20 11:51:28,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:28,082 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-20 11:51:28,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states 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 11:51:28,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:28,091 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:28,092 INFO L175 Difference]: Start difference. First operand has 429 places, 428 transitions, 893 flow. Second operand 3 states and 1431 transitions. [2022-11-20 11:51:28,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 427 transitions, 943 flow [2022-11-20 11:51:28,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 427 transitions, 913 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:51:28,102 INFO L231 Difference]: Finished difference. Result has 425 places, 427 transitions, 865 flow [2022-11-20 11:51:28,103 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=865, PETRI_PLACES=425, PETRI_TRANSITIONS=427} [2022-11-20 11:51:28,107 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -39 predicate places. [2022-11-20 11:51:28,107 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 427 transitions, 865 flow [2022-11-20 11:51:28,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states 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 11:51:28,108 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:28,108 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:28,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:51:28,109 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:28,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:28,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1042780861, now seen corresponding path program 1 times [2022-11-20 11:51:28,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:28,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411803253] [2022-11-20 11:51:28,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:28,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:28,202 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 11:51:28,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:28,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411803253] [2022-11-20 11:51:28,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411803253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:28,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:28,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:28,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639233616] [2022-11-20 11:51:28,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:28,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:28,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:28,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:28,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:28,208 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-20 11:51:28,211 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 427 transitions, 865 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 11:51:28,211 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:28,211 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-20 11:51:28,211 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:28,423 INFO L130 PetriNetUnfolder]: 37/530 cut-off events. [2022-11-20 11:51:28,423 INFO L131 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-11-20 11:51:28,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 530 events. 37/530 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1127 event pairs, 12 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 553. Up to 48 conditions per place. [2022-11-20 11:51:28,436 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 12 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2022-11-20 11:51:28,436 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 426 transitions, 891 flow [2022-11-20 11:51:28,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:28,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:28,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-20 11:51:28,441 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185606060606061 [2022-11-20 11:51:28,442 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-20 11:51:28,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-20 11:51:28,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:28,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-20 11:51:28,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states 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 11:51:28,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:28,455 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:28,455 INFO L175 Difference]: Start difference. First operand has 425 places, 427 transitions, 865 flow. Second operand 3 states and 1455 transitions. [2022-11-20 11:51:28,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 426 transitions, 891 flow [2022-11-20 11:51:28,459 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 426 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:28,466 INFO L231 Difference]: Finished difference. Result has 424 places, 426 transitions, 863 flow [2022-11-20 11:51:28,467 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=863, PETRI_PLACES=424, PETRI_TRANSITIONS=426} [2022-11-20 11:51:28,470 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -40 predicate places. [2022-11-20 11:51:28,470 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 426 transitions, 863 flow [2022-11-20 11:51:28,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 11:51:28,471 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:28,471 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:28,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:51:28,472 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:28,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:28,472 INFO L85 PathProgramCache]: Analyzing trace with hash 569493067, now seen corresponding path program 1 times [2022-11-20 11:51:28,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:28,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888496908] [2022-11-20 11:51:28,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:28,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:28,558 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 11:51:28,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:28,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888496908] [2022-11-20 11:51:28,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888496908] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:28,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:28,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:28,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502631418] [2022-11-20 11:51:28,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:28,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:28,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:28,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:28,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:28,565 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-20 11:51:28,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 426 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 11:51:28,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:28,568 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-20 11:51:28,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:28,810 INFO L130 PetriNetUnfolder]: 37/529 cut-off events. [2022-11-20 11:51:28,810 INFO L131 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-11-20 11:51:28,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 529 events. 37/529 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1131 event pairs, 12 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 552. Up to 48 conditions per place. [2022-11-20 11:51:28,816 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 12 selfloop transitions, 2 changer transitions 0/425 dead transitions. [2022-11-20 11:51:28,816 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 425 transitions, 889 flow [2022-11-20 11:51:28,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-20 11:51:28,821 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185606060606061 [2022-11-20 11:51:28,821 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-20 11:51:28,821 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-20 11:51:28,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:28,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-20 11:51:28,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states 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 11:51:28,831 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:28,832 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:28,832 INFO L175 Difference]: Start difference. First operand has 424 places, 426 transitions, 863 flow. Second operand 3 states and 1455 transitions. [2022-11-20 11:51:28,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 425 transitions, 889 flow [2022-11-20 11:51:28,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 425 transitions, 885 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:28,843 INFO L231 Difference]: Finished difference. Result has 423 places, 425 transitions, 861 flow [2022-11-20 11:51:28,844 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=861, PETRI_PLACES=423, PETRI_TRANSITIONS=425} [2022-11-20 11:51:28,845 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -41 predicate places. [2022-11-20 11:51:28,845 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 425 transitions, 861 flow [2022-11-20 11:51:28,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 11:51:28,846 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:28,847 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:28,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:51:28,847 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:28,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:28,848 INFO L85 PathProgramCache]: Analyzing trace with hash 648145926, now seen corresponding path program 1 times [2022-11-20 11:51:28,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:28,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676779466] [2022-11-20 11:51:28,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:28,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:28,922 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 11:51:28,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:28,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676779466] [2022-11-20 11:51:28,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676779466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:28,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:28,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:28,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201829108] [2022-11-20 11:51:28,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:28,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:28,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:28,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:28,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:28,928 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-20 11:51:28,931 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 425 transitions, 861 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 11:51:28,931 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:28,932 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-20 11:51:28,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:29,324 INFO L130 PetriNetUnfolder]: 129/1285 cut-off events. [2022-11-20 11:51:29,324 INFO L131 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2022-11-20 11:51:29,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 1285 events. 129/1285 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6884 event pairs, 56 based on Foata normal form. 0/1104 useless extension candidates. Maximal degree in co-relation 1434. Up to 160 conditions per place. [2022-11-20 11:51:29,336 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 18 selfloop transitions, 1 changer transitions 0/421 dead transitions. [2022-11-20 11:51:29,336 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 421 transitions, 891 flow [2022-11-20 11:51:29,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:29,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:29,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-20 11:51:29,340 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-20 11:51:29,341 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-20 11:51:29,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-20 11:51:29,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:29,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-20 11:51:29,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 11:51:29,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:29,350 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:29,350 INFO L175 Difference]: Start difference. First operand has 423 places, 425 transitions, 861 flow. Second operand 3 states and 1436 transitions. [2022-11-20 11:51:29,350 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 421 transitions, 891 flow [2022-11-20 11:51:29,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 421 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:29,358 INFO L231 Difference]: Finished difference. Result has 419 places, 421 transitions, 851 flow [2022-11-20 11:51:29,359 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=419, PETRI_TRANSITIONS=421} [2022-11-20 11:51:29,363 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -45 predicate places. [2022-11-20 11:51:29,363 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 421 transitions, 851 flow [2022-11-20 11:51:29,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 11:51:29,364 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:29,364 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:29,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:51:29,364 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:29,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:29,365 INFO L85 PathProgramCache]: Analyzing trace with hash -795402422, now seen corresponding path program 1 times [2022-11-20 11:51:29,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:29,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181433555] [2022-11-20 11:51:29,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:29,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:29,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:29,986 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 11:51:29,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:29,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181433555] [2022-11-20 11:51:29,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181433555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:29,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:29,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:29,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995205951] [2022-11-20 11:51:29,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:29,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:51:29,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:29,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:51:29,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:51:29,993 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-20 11:51:29,998 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 421 transitions, 851 flow. Second operand has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states 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 11:51:29,999 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:29,999 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-20 11:51:29,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:33,486 INFO L130 PetriNetUnfolder]: 3172/11360 cut-off events. [2022-11-20 11:51:33,487 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-20 11:51:33,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15924 conditions, 11360 events. 3172/11360 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 124209 event pairs, 924 based on Foata normal form. 0/10143 useless extension candidates. Maximal degree in co-relation 15888. Up to 2825 conditions per place. [2022-11-20 11:51:33,591 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 140 selfloop transitions, 5 changer transitions 0/470 dead transitions. [2022-11-20 11:51:33,591 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 470 transitions, 1243 flow [2022-11-20 11:51:33,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:51:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:51:33,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2523 transitions. [2022-11-20 11:51:33,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7964015151515151 [2022-11-20 11:51:33,599 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2523 transitions. [2022-11-20 11:51:33,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2523 transitions. [2022-11-20 11:51:33,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:33,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2523 transitions. [2022-11-20 11:51:33,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.5) internal successors, (2523), 6 states have internal predecessors, (2523), 0 states have call successors, (0), 0 states 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 11:51:33,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:51:33,614 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:51:33,615 INFO L175 Difference]: Start difference. First operand has 419 places, 421 transitions, 851 flow. Second operand 6 states and 2523 transitions. [2022-11-20 11:51:33,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 470 transitions, 1243 flow [2022-11-20 11:51:33,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 470 transitions, 1242 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:51:33,626 INFO L231 Difference]: Finished difference. Result has 422 places, 420 transitions, 862 flow [2022-11-20 11:51:33,626 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=422, PETRI_TRANSITIONS=420} [2022-11-20 11:51:33,628 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -42 predicate places. [2022-11-20 11:51:33,628 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 420 transitions, 862 flow [2022-11-20 11:51:33,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states 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 11:51:33,629 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:33,629 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:33,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 11:51:33,630 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:33,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:33,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1747857120, now seen corresponding path program 1 times [2022-11-20 11:51:33,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:33,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297224376] [2022-11-20 11:51:33,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:33,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:33,734 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 11:51:33,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:33,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297224376] [2022-11-20 11:51:33,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297224376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:33,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:33,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:33,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009944477] [2022-11-20 11:51:33,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:33,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:33,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:33,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:33,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:33,747 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-20 11:51:33,749 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 420 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 11:51:33,750 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:33,750 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-20 11:51:33,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:34,223 INFO L130 PetriNetUnfolder]: 162/1308 cut-off events. [2022-11-20 11:51:34,224 INFO L131 PetriNetUnfolder]: For 87/95 co-relation queries the response was YES. [2022-11-20 11:51:34,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1658 conditions, 1308 events. 162/1308 cut-off events. For 87/95 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 7006 event pairs, 80 based on Foata normal form. 0/1127 useless extension candidates. Maximal degree in co-relation 1621. Up to 224 conditions per place. [2022-11-20 11:51:34,236 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 22 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2022-11-20 11:51:34,237 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 419 transitions, 908 flow [2022-11-20 11:51:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:34,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:34,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1437 transitions. [2022-11-20 11:51:34,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9071969696969697 [2022-11-20 11:51:34,242 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1437 transitions. [2022-11-20 11:51:34,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1437 transitions. [2022-11-20 11:51:34,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:34,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1437 transitions. [2022-11-20 11:51:34,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.0) internal successors, (1437), 3 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states 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 11:51:34,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:34,250 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:34,250 INFO L175 Difference]: Start difference. First operand has 422 places, 420 transitions, 862 flow. Second operand 3 states and 1437 transitions. [2022-11-20 11:51:34,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 419 transitions, 908 flow [2022-11-20 11:51:34,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 419 transitions, 900 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 11:51:34,260 INFO L231 Difference]: Finished difference. Result has 419 places, 419 transitions, 856 flow [2022-11-20 11:51:34,262 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=419, PETRI_TRANSITIONS=419} [2022-11-20 11:51:34,263 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -45 predicate places. [2022-11-20 11:51:34,263 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 419 transitions, 856 flow [2022-11-20 11:51:34,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 11:51:34,264 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:34,264 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:34,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 11:51:34,265 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:34,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:34,265 INFO L85 PathProgramCache]: Analyzing trace with hash 937965395, now seen corresponding path program 1 times [2022-11-20 11:51:34,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:34,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683626414] [2022-11-20 11:51:34,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:34,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:34,341 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 11:51:34,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:34,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683626414] [2022-11-20 11:51:34,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683626414] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:34,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:34,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:34,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942565387] [2022-11-20 11:51:34,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:34,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:34,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:34,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:34,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:34,347 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-20 11:51:34,349 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 419 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 11:51:34,349 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:34,349 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-20 11:51:34,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:34,670 INFO L130 PetriNetUnfolder]: 131/1285 cut-off events. [2022-11-20 11:51:34,670 INFO L131 PetriNetUnfolder]: For 68/73 co-relation queries the response was YES. [2022-11-20 11:51:34,678 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 1285 events. 131/1285 cut-off events. For 68/73 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6905 event pairs, 58 based on Foata normal form. 0/1125 useless extension candidates. Maximal degree in co-relation 1486. Up to 164 conditions per place. [2022-11-20 11:51:34,683 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 19 selfloop transitions, 1 changer transitions 0/415 dead transitions. [2022-11-20 11:51:34,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 415 transitions, 888 flow [2022-11-20 11:51:34,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:34,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:34,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-20 11:51:34,687 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-20 11:51:34,687 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-20 11:51:34,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-20 11:51:34,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:34,688 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-20 11:51:34,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 11:51:34,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:34,696 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:34,696 INFO L175 Difference]: Start difference. First operand has 419 places, 419 transitions, 856 flow. Second operand 3 states and 1436 transitions. [2022-11-20 11:51:34,696 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 415 transitions, 888 flow [2022-11-20 11:51:34,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 415 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:34,706 INFO L231 Difference]: Finished difference. Result has 415 places, 415 transitions, 846 flow [2022-11-20 11:51:34,706 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=415, PETRI_TRANSITIONS=415} [2022-11-20 11:51:34,707 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -49 predicate places. [2022-11-20 11:51:34,707 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 415 transitions, 846 flow [2022-11-20 11:51:34,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 11:51:34,708 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:34,708 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:34,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 11:51:34,709 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:34,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:34,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1107462591, now seen corresponding path program 1 times [2022-11-20 11:51:34,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:34,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459925937] [2022-11-20 11:51:34,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:34,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:35,298 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 11:51:35,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:35,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459925937] [2022-11-20 11:51:35,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459925937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:35,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:35,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:35,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372371] [2022-11-20 11:51:35,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:35,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:51:35,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:35,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:51:35,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:51:35,304 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-20 11:51:35,307 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 415 transitions, 846 flow. Second operand has 6 states, 6 states have (on average 398.1666666666667) internal successors, (2389), 6 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states 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 11:51:35,307 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:35,307 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-20 11:51:35,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:38,677 INFO L130 PetriNetUnfolder]: 3172/11292 cut-off events. [2022-11-20 11:51:38,677 INFO L131 PetriNetUnfolder]: For 1242/1242 co-relation queries the response was YES. [2022-11-20 11:51:38,728 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17087 conditions, 11292 events. 3172/11292 cut-off events. For 1242/1242 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 123379 event pairs, 924 based on Foata normal form. 0/10123 useless extension candidates. Maximal degree in co-relation 17050. Up to 2830 conditions per place. [2022-11-20 11:51:38,780 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 138 selfloop transitions, 5 changer transitions 0/463 dead transitions. [2022-11-20 11:51:38,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 463 transitions, 1232 flow [2022-11-20 11:51:38,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:51:38,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:51:38,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2521 transitions. [2022-11-20 11:51:38,787 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.795770202020202 [2022-11-20 11:51:38,788 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2521 transitions. [2022-11-20 11:51:38,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2521 transitions. [2022-11-20 11:51:38,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:38,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2521 transitions. [2022-11-20 11:51:38,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.1666666666667) internal successors, (2521), 6 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states 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 11:51:38,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:51:38,804 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:51:38,804 INFO L175 Difference]: Start difference. First operand has 415 places, 415 transitions, 846 flow. Second operand 6 states and 2521 transitions. [2022-11-20 11:51:38,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 463 transitions, 1232 flow [2022-11-20 11:51:38,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 463 transitions, 1231 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:51:38,816 INFO L231 Difference]: Finished difference. Result has 417 places, 413 transitions, 851 flow [2022-11-20 11:51:38,817 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=851, PETRI_PLACES=417, PETRI_TRANSITIONS=413} [2022-11-20 11:51:38,818 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -47 predicate places. [2022-11-20 11:51:38,818 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 413 transitions, 851 flow [2022-11-20 11:51:38,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 398.1666666666667) internal successors, (2389), 6 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states 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 11:51:38,819 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:38,819 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:38,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 11:51:38,820 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:38,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:38,821 INFO L85 PathProgramCache]: Analyzing trace with hash -67205247, now seen corresponding path program 1 times [2022-11-20 11:51:38,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:38,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919510233] [2022-11-20 11:51:38,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:38,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:38,911 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 11:51:38,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:38,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919510233] [2022-11-20 11:51:38,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919510233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:38,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:38,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:38,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845265635] [2022-11-20 11:51:38,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:38,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:38,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:38,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:38,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:39,050 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-20 11:51:39,053 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 413 transitions, 851 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 11:51:39,053 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:39,053 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-20 11:51:39,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:39,555 INFO L130 PetriNetUnfolder]: 161/1312 cut-off events. [2022-11-20 11:51:39,555 INFO L131 PetriNetUnfolder]: For 146/151 co-relation queries the response was YES. [2022-11-20 11:51:39,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 1312 events. 161/1312 cut-off events. For 146/151 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7077 event pairs, 80 based on Foata normal form. 0/1150 useless extension candidates. Maximal degree in co-relation 1619. Up to 216 conditions per place. [2022-11-20 11:51:39,569 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 21 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-20 11:51:39,570 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 412 transitions, 895 flow [2022-11-20 11:51:39,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:39,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:39,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-20 11:51:39,575 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-20 11:51:39,575 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-20 11:51:39,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-20 11:51:39,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:39,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-20 11:51:39,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states 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 11:51:39,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:39,586 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:39,587 INFO L175 Difference]: Start difference. First operand has 417 places, 413 transitions, 851 flow. Second operand 3 states and 1436 transitions. [2022-11-20 11:51:39,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 412 transitions, 895 flow [2022-11-20 11:51:39,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 412 transitions, 885 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:51:39,598 INFO L231 Difference]: Finished difference. Result has 413 places, 412 transitions, 843 flow [2022-11-20 11:51:39,599 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=843, PETRI_PLACES=413, PETRI_TRANSITIONS=412} [2022-11-20 11:51:39,600 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -51 predicate places. [2022-11-20 11:51:39,601 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 412 transitions, 843 flow [2022-11-20 11:51:39,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states 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 11:51:39,602 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:39,603 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:39,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 11:51:39,603 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:39,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:39,604 INFO L85 PathProgramCache]: Analyzing trace with hash -191147648, now seen corresponding path program 1 times [2022-11-20 11:51:39,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:39,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547694052] [2022-11-20 11:51:39,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:39,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:39,721 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 11:51:39,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:39,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547694052] [2022-11-20 11:51:39,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547694052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:39,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:39,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:39,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633536790] [2022-11-20 11:51:39,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:39,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:39,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:39,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:39,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:39,727 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 528 [2022-11-20 11:51:39,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 412 transitions, 843 flow. Second operand has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states 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 11:51:39,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:39,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 528 [2022-11-20 11:51:39,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:39,965 INFO L130 PetriNetUnfolder]: 39/554 cut-off events. [2022-11-20 11:51:39,965 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-20 11:51:39,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 554 events. 39/554 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1285 event pairs, 14 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 606. Up to 60 conditions per place. [2022-11-20 11:51:39,970 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 16 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-20 11:51:39,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 411 transitions, 877 flow [2022-11-20 11:51:39,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:39,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:39,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-11-20 11:51:39,976 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9147727272727273 [2022-11-20 11:51:39,976 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-11-20 11:51:39,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-11-20 11:51:39,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:39,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-11-20 11:51:39,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states 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 11:51:39,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:39,987 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:39,987 INFO L175 Difference]: Start difference. First operand has 413 places, 412 transitions, 843 flow. Second operand 3 states and 1449 transitions. [2022-11-20 11:51:39,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 411 transitions, 877 flow [2022-11-20 11:51:39,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 411 transitions, 873 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:39,999 INFO L231 Difference]: Finished difference. Result has 412 places, 411 transitions, 841 flow [2022-11-20 11:51:40,000 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=841, PETRI_PLACES=412, PETRI_TRANSITIONS=411} [2022-11-20 11:51:40,001 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -52 predicate places. [2022-11-20 11:51:40,001 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 411 transitions, 841 flow [2022-11-20 11:51:40,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states 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 11:51:40,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:40,003 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:40,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 11:51:40,003 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:40,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:40,004 INFO L85 PathProgramCache]: Analyzing trace with hash 354671610, now seen corresponding path program 1 times [2022-11-20 11:51:40,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:40,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506138091] [2022-11-20 11:51:40,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:40,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:40,144 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 11:51:40,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:40,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506138091] [2022-11-20 11:51:40,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506138091] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:40,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:40,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:51:40,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004571109] [2022-11-20 11:51:40,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:40,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:51:40,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:40,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:51:40,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:51:40,151 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 528 [2022-11-20 11:51:40,153 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 411 transitions, 841 flow. Second operand has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:40,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:40,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 528 [2022-11-20 11:51:40,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:40,713 INFO L130 PetriNetUnfolder]: 185/1617 cut-off events. [2022-11-20 11:51:40,713 INFO L131 PetriNetUnfolder]: For 97/105 co-relation queries the response was YES. [2022-11-20 11:51:40,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1944 conditions, 1617 events. 185/1617 cut-off events. For 97/105 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9763 event pairs, 51 based on Foata normal form. 0/1422 useless extension candidates. Maximal degree in co-relation 1908. Up to 137 conditions per place. [2022-11-20 11:51:40,726 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 27 selfloop transitions, 3 changer transitions 0/420 dead transitions. [2022-11-20 11:51:40,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 420 transitions, 928 flow [2022-11-20 11:51:40,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:51:40,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 11:51:40,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1452 transitions. [2022-11-20 11:51:40,730 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2022-11-20 11:51:40,730 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1452 transitions. [2022-11-20 11:51:40,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1452 transitions. [2022-11-20 11:51:40,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:40,732 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1452 transitions. [2022-11-20 11:51:40,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states 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 11:51:40,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:40,739 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states 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 11:51:40,740 INFO L175 Difference]: Start difference. First operand has 412 places, 411 transitions, 841 flow. Second operand 3 states and 1452 transitions. [2022-11-20 11:51:40,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 420 transitions, 928 flow [2022-11-20 11:51:40,743 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 420 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:40,748 INFO L231 Difference]: Finished difference. Result has 411 places, 411 transitions, 850 flow [2022-11-20 11:51:40,749 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=411, PETRI_TRANSITIONS=411} [2022-11-20 11:51:40,749 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -53 predicate places. [2022-11-20 11:51:40,750 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 411 transitions, 850 flow [2022-11-20 11:51:40,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:51:40,751 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:40,751 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:40,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 11:51:40,751 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:40,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:40,752 INFO L85 PathProgramCache]: Analyzing trace with hash 66115616, now seen corresponding path program 1 times [2022-11-20 11:51:40,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:40,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923617868] [2022-11-20 11:51:40,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:40,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:41,048 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 11:51:41,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:41,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923617868] [2022-11-20 11:51:41,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923617868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:41,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:41,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:51:41,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697861335] [2022-11-20 11:51:41,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:41,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:51:41,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:41,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:51:41,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:51:41,054 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 528 [2022-11-20 11:51:41,057 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 411 transitions, 850 flow. Second operand has 7 states, 7 states have (on average 397.14285714285717) internal successors, (2780), 7 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states 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 11:51:41,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:41,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 528 [2022-11-20 11:51:41,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:44,767 INFO L130 PetriNetUnfolder]: 5052/12147 cut-off events. [2022-11-20 11:51:44,767 INFO L131 PetriNetUnfolder]: For 858/950 co-relation queries the response was YES. [2022-11-20 11:51:44,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20664 conditions, 12147 events. 5052/12147 cut-off events. For 858/950 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 101267 event pairs, 3443 based on Foata normal form. 1/9696 useless extension candidates. Maximal degree in co-relation 20626. Up to 6311 conditions per place. [2022-11-20 11:51:44,885 INFO L137 encePairwiseOnDemand]: 509/528 looper letters, 211 selfloop transitions, 28 changer transitions 0/549 dead transitions. [2022-11-20 11:51:44,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 549 transitions, 1636 flow [2022-11-20 11:51:44,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:51:44,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:51:44,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4548 transitions. [2022-11-20 11:51:44,897 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7830578512396694 [2022-11-20 11:51:44,897 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4548 transitions. [2022-11-20 11:51:44,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4548 transitions. [2022-11-20 11:51:44,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:44,901 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4548 transitions. [2022-11-20 11:51:44,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 413.45454545454544) internal successors, (4548), 11 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states 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 11:51:44,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 11:51:44,923 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 11:51:44,925 INFO L175 Difference]: Start difference. First operand has 411 places, 411 transitions, 850 flow. Second operand 11 states and 4548 transitions. [2022-11-20 11:51:44,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 549 transitions, 1636 flow [2022-11-20 11:51:44,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 549 transitions, 1633 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:51:44,938 INFO L231 Difference]: Finished difference. Result has 424 places, 428 transitions, 980 flow [2022-11-20 11:51:44,939 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=980, PETRI_PLACES=424, PETRI_TRANSITIONS=428} [2022-11-20 11:51:44,939 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -40 predicate places. [2022-11-20 11:51:44,942 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 428 transitions, 980 flow [2022-11-20 11:51:44,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 397.14285714285717) internal successors, (2780), 7 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states 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 11:51:44,943 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:44,944 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:44,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 11:51:44,944 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:44,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:44,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1405829606, now seen corresponding path program 1 times [2022-11-20 11:51:44,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:44,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378360947] [2022-11-20 11:51:44,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:44,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:45,845 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 11:51:45,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:45,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378360947] [2022-11-20 11:51:45,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378360947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:45,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:45,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:45,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284553210] [2022-11-20 11:51:45,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:45,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:51:45,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:45,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:51:45,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:51:45,851 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-20 11:51:45,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 428 transitions, 980 flow. Second operand has 6 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states 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 11:51:45,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:45,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-20 11:51:45,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:50,886 INFO L130 PetriNetUnfolder]: 6676/14217 cut-off events. [2022-11-20 11:51:50,886 INFO L131 PetriNetUnfolder]: For 2786/2846 co-relation queries the response was YES. [2022-11-20 11:51:50,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26970 conditions, 14217 events. 6676/14217 cut-off events. For 2786/2846 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 114761 event pairs, 2122 based on Foata normal form. 48/13059 useless extension candidates. Maximal degree in co-relation 26925. Up to 5895 conditions per place. [2022-11-20 11:51:51,012 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 209 selfloop transitions, 13 changer transitions 0/559 dead transitions. [2022-11-20 11:51:51,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 559 transitions, 1705 flow [2022-11-20 11:51:51,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:51:51,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:51:51,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2594 transitions. [2022-11-20 11:51:51,029 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8188131313131313 [2022-11-20 11:51:51,030 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2594 transitions. [2022-11-20 11:51:51,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2594 transitions. [2022-11-20 11:51:51,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:51,036 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2594 transitions. [2022-11-20 11:51:51,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 432.3333333333333) internal successors, (2594), 6 states have internal predecessors, (2594), 0 states have call successors, (0), 0 states 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 11:51:51,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:51:51,057 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:51:51,057 INFO L175 Difference]: Start difference. First operand has 424 places, 428 transitions, 980 flow. Second operand 6 states and 2594 transitions. [2022-11-20 11:51:51,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 559 transitions, 1705 flow [2022-11-20 11:51:51,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 559 transitions, 1700 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 11:51:51,072 INFO L231 Difference]: Finished difference. Result has 432 places, 440 transitions, 1081 flow [2022-11-20 11:51:51,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1081, PETRI_PLACES=432, PETRI_TRANSITIONS=440} [2022-11-20 11:51:51,074 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -32 predicate places. [2022-11-20 11:51:51,074 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 440 transitions, 1081 flow [2022-11-20 11:51:51,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states 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 11:51:51,075 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:51,076 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:51,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 11:51:51,076 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:51,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:51,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1319435839, now seen corresponding path program 1 times [2022-11-20 11:51:51,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:51,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955391612] [2022-11-20 11:51:51,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:51,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:51,388 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 11:51:51,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:51,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955391612] [2022-11-20 11:51:51,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955391612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:51,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:51,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 11:51:51,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275619996] [2022-11-20 11:51:51,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:51,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 11:51:51,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:51,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 11:51:51,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 11:51:51,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 528 [2022-11-20 11:51:51,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 440 transitions, 1081 flow. Second operand has 7 states, 7 states have (on average 424.7142857142857) internal successors, (2973), 7 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states 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 11:51:51,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:51,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 528 [2022-11-20 11:51:51,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:51:54,073 INFO L130 PetriNetUnfolder]: 3139/7711 cut-off events. [2022-11-20 11:51:54,074 INFO L131 PetriNetUnfolder]: For 4294/4979 co-relation queries the response was YES. [2022-11-20 11:51:54,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14764 conditions, 7711 events. 3139/7711 cut-off events. For 4294/4979 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 58634 event pairs, 1719 based on Foata normal form. 39/6008 useless extension candidates. Maximal degree in co-relation 14717. Up to 3889 conditions per place. [2022-11-20 11:51:54,137 INFO L137 encePairwiseOnDemand]: 509/528 looper letters, 179 selfloop transitions, 28 changer transitions 0/551 dead transitions. [2022-11-20 11:51:54,137 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 551 transitions, 1749 flow [2022-11-20 11:51:54,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 11:51:54,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 11:51:54,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4820 transitions. [2022-11-20 11:51:54,149 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8298898071625345 [2022-11-20 11:51:54,149 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4820 transitions. [2022-11-20 11:51:54,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4820 transitions. [2022-11-20 11:51:54,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:51:54,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4820 transitions. [2022-11-20 11:51:54,162 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 438.1818181818182) internal successors, (4820), 11 states have internal predecessors, (4820), 0 states have call successors, (0), 0 states 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 11:51:54,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 11:51:54,176 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states 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 11:51:54,176 INFO L175 Difference]: Start difference. First operand has 432 places, 440 transitions, 1081 flow. Second operand 11 states and 4820 transitions. [2022-11-20 11:51:54,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 551 transitions, 1749 flow [2022-11-20 11:51:54,184 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 551 transitions, 1749 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:51:54,190 INFO L231 Difference]: Finished difference. Result has 444 places, 442 transitions, 1149 flow [2022-11-20 11:51:54,191 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1081, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1149, PETRI_PLACES=444, PETRI_TRANSITIONS=442} [2022-11-20 11:51:54,192 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -20 predicate places. [2022-11-20 11:51:54,192 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 442 transitions, 1149 flow [2022-11-20 11:51:54,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 424.7142857142857) internal successors, (2973), 7 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states 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 11:51:54,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:51:54,193 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:51:54,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 11:51:54,194 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:51:54,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:51:54,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2047191116, now seen corresponding path program 1 times [2022-11-20 11:51:54,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:51:54,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308832071] [2022-11-20 11:51:54,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:51:54,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:51:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:51:55,100 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 11:51:55,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:51:55,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308832071] [2022-11-20 11:51:55,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308832071] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:51:55,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:51:55,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:51:55,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194690388] [2022-11-20 11:51:55,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:51:55,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:51:55,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:51:55,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:51:55,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:51:55,107 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-20 11:51:55,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 442 transitions, 1149 flow. Second operand has 6 states, 6 states have (on average 402.3333333333333) internal successors, (2414), 6 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states 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 11:51:55,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:51:55,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-20 11:51:55,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:52:00,063 INFO L130 PetriNetUnfolder]: 5873/15054 cut-off events. [2022-11-20 11:52:00,063 INFO L131 PetriNetUnfolder]: For 13951/14038 co-relation queries the response was YES. [2022-11-20 11:52:00,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32839 conditions, 15054 events. 5873/15054 cut-off events. For 13951/14038 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 140248 event pairs, 3463 based on Foata normal form. 12/13948 useless extension candidates. Maximal degree in co-relation 32787. Up to 7909 conditions per place. [2022-11-20 11:52:00,203 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 118 selfloop transitions, 17 changer transitions 0/474 dead transitions. [2022-11-20 11:52:00,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 474 transitions, 1549 flow [2022-11-20 11:52:00,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:52:00,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:52:00,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2491 transitions. [2022-11-20 11:52:00,209 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7863005050505051 [2022-11-20 11:52:00,209 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2491 transitions. [2022-11-20 11:52:00,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2491 transitions. [2022-11-20 11:52:00,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:52:00,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2491 transitions. [2022-11-20 11:52:00,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 415.1666666666667) internal successors, (2491), 6 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states 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 11:52:00,221 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:52:00,223 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:52:00,223 INFO L175 Difference]: Start difference. First operand has 444 places, 442 transitions, 1149 flow. Second operand 6 states and 2491 transitions. [2022-11-20 11:52:00,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 474 transitions, 1549 flow [2022-11-20 11:52:00,250 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 474 transitions, 1524 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 11:52:00,257 INFO L231 Difference]: Finished difference. Result has 449 places, 458 transitions, 1304 flow [2022-11-20 11:52:00,257 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1304, PETRI_PLACES=449, PETRI_TRANSITIONS=458} [2022-11-20 11:52:00,258 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -15 predicate places. [2022-11-20 11:52:00,258 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 458 transitions, 1304 flow [2022-11-20 11:52:00,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 402.3333333333333) internal successors, (2414), 6 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states 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 11:52:00,259 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:52:00,260 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:00,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 11:52:00,260 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:52:00,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:00,261 INFO L85 PathProgramCache]: Analyzing trace with hash 66612076, now seen corresponding path program 1 times [2022-11-20 11:52:00,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:52:00,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295995479] [2022-11-20 11:52:00,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:00,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:52:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:01,237 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 11:52:01,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:52:01,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295995479] [2022-11-20 11:52:01,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295995479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:52:01,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:52:01,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:52:01,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373389733] [2022-11-20 11:52:01,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:52:01,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:52:01,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:52:01,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:52:01,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:52:01,243 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-20 11:52:01,245 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 458 transitions, 1304 flow. Second operand has 6 states, 6 states have (on average 403.3333333333333) internal successors, (2420), 6 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 11:52:01,245 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:52:01,245 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-20 11:52:01,245 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:52:06,106 INFO L130 PetriNetUnfolder]: 5953/15203 cut-off events. [2022-11-20 11:52:06,106 INFO L131 PetriNetUnfolder]: For 19036/19159 co-relation queries the response was YES. [2022-11-20 11:52:06,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34957 conditions, 15203 events. 5953/15203 cut-off events. For 19036/19159 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 141568 event pairs, 3606 based on Foata normal form. 0/14108 useless extension candidates. Maximal degree in co-relation 34903. Up to 8233 conditions per place. [2022-11-20 11:52:06,261 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 122 selfloop transitions, 4 changer transitions 0/465 dead transitions. [2022-11-20 11:52:06,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 465 transitions, 1570 flow [2022-11-20 11:52:06,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:52:06,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:52:06,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2474 transitions. [2022-11-20 11:52:06,267 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7809343434343434 [2022-11-20 11:52:06,267 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2474 transitions. [2022-11-20 11:52:06,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2474 transitions. [2022-11-20 11:52:06,268 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:52:06,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2474 transitions. [2022-11-20 11:52:06,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 412.3333333333333) internal successors, (2474), 6 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states 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 11:52:06,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:52:06,282 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states 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 11:52:06,282 INFO L175 Difference]: Start difference. First operand has 449 places, 458 transitions, 1304 flow. Second operand 6 states and 2474 transitions. [2022-11-20 11:52:06,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 465 transitions, 1570 flow [2022-11-20 11:52:06,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 465 transitions, 1570 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:52:06,333 INFO L231 Difference]: Finished difference. Result has 453 places, 457 transitions, 1310 flow [2022-11-20 11:52:06,333 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1310, PETRI_PLACES=453, PETRI_TRANSITIONS=457} [2022-11-20 11:52:06,334 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -11 predicate places. [2022-11-20 11:52:06,334 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 457 transitions, 1310 flow [2022-11-20 11:52:06,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 403.3333333333333) internal successors, (2420), 6 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states 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 11:52:06,336 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:52:06,336 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:52:06,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 11:52:06,336 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 11:52:06,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:52:06,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1916890360, now seen corresponding path program 1 times [2022-11-20 11:52:06,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:52:06,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451903890] [2022-11-20 11:52:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:06,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:52:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:52:06,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:52:06,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451903890] [2022-11-20 11:52:06,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451903890] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 11:52:06,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392958150] [2022-11-20 11:52:06,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:52:06,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:52:06,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:52:06,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:52:06,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ccbcbd-ba02-4273-9e44-291c8b3a3864/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:52:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:52:07,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 11:52:07,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:52:07,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:52:07,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 11:52:08,338 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 11:52:08,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392958150] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 11:52:08,339 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 11:52:08,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-20 11:52:08,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206641493] [2022-11-20 11:52:08,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 11:52:08,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 11:52:08,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:52:08,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 11:52:08,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-20 11:52:08,349 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 528 [2022-11-20 11:52:08,356 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 457 transitions, 1310 flow. Second operand has 19 states, 19 states have (on average 394.2631578947368) internal successors, (7491), 19 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states 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 11:52:08,356 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:52:08,357 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 528 [2022-11-20 11:52:08,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand