./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/array-eq-trans.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_ef3a5e8c-b816-44fc-a27f-9898422e599b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/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_ef3a5e8c-b816-44fc-a27f-9898422e599b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/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_ef3a5e8c-b816-44fc-a27f-9898422e599b/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 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 --- 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 10:56:47,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:56:47,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:56:47,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:56:47,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:56:47,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:56:47,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:56:47,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:56:47,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:56:47,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:56:47,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:56:47,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:56:47,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:56:47,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:56:47,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:56:47,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:56:47,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:56:47,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:56:47,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:56:47,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:56:47,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:56:47,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:56:47,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:56:47,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:56:47,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:56:47,383 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:56:47,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:56:47,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:56:47,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:56:47,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:56:47,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:56:47,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:56:47,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:56:47,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:56:47,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:56:47,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:56:47,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:56:47,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:56:47,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:56:47,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:56:47,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:56:47,402 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 10:56:47,445 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:56:47,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:56:47,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:56:47,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:56:47,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:56:47,448 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:56:47,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:56:47,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:56:47,449 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:56:47,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:56:47,451 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:56:47,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:56:47,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:56:47,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:56:47,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:56:47,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:56:47,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:56:47,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:56:47,453 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 10:56:47,454 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:56:47,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:56:47,454 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:56:47,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:56:47,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:56:47,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:56:47,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:56:47,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:56:47,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:56:47,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:56:47,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:56:47,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:56:47,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:56:47,458 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:56:47,459 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:56:47,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:56:47,459 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_ef3a5e8c-b816-44fc-a27f-9898422e599b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23bd321b64eb98f17ff91aefc669d9f5b78966b876ea50803bd27f8c9b624679 [2022-11-20 10:56:47,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:56:47,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:56:47,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:56:47,835 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:56:47,835 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:56:47,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-20 10:56:50,905 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:56:51,131 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:56:51,132 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/sv-benchmarks/c/weaver/array-eq-trans.wvr.c [2022-11-20 10:56:51,138 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/bin/uautomizer-ug76WZFUDN/data/30311fb2e/cf607f3c654c440f9936a2b776633c89/FLAG439e807b4 [2022-11-20 10:56:51,154 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/bin/uautomizer-ug76WZFUDN/data/30311fb2e/cf607f3c654c440f9936a2b776633c89 [2022-11-20 10:56:51,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:56:51,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:56:51,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:56:51,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:56:51,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:56:51,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f086bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51, skipping insertion in model container [2022-11-20 10:56:51,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,177 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:56:51,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:56:51,423 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_ef3a5e8c-b816-44fc-a27f-9898422e599b/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-20 10:56:51,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:56:51,443 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:56:51,496 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_ef3a5e8c-b816-44fc-a27f-9898422e599b/sv-benchmarks/c/weaver/array-eq-trans.wvr.c[2737,2750] [2022-11-20 10:56:51,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:56:51,519 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:56:51,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51 WrapperNode [2022-11-20 10:56:51,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:56:51,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:56:51,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:56:51,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:56:51,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,593 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 10, calls inlined = 14, statements flattened = 348 [2022-11-20 10:56:51,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:56:51,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:56:51,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:56:51,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:56:51,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,652 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:56:51,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:56:51,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:56:51,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:56:51,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (1/1) ... [2022-11-20 10:56:51,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:56:51,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:56:51,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:56:51,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef3a5e8c-b816-44fc-a27f-9898422e599b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:56:51,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:56:51,798 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 10:56:51,798 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 10:56:51,800 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 10:56:51,800 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 10:56:51,802 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 10:56:51,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 10:56:51,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:56:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:56:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:56:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:56:51,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:56:51,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:56:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:56:51,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:56:51,807 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 10:56:52,103 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:56:52,105 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:56:53,164 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:56:53,177 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:56:53,177 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 10:56:53,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:53 BoogieIcfgContainer [2022-11-20 10:56:53,180 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:56:53,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:56:53,182 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:56:53,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:56:53,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:56:51" (1/3) ... [2022-11-20 10:56:53,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fed822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:56:53, skipping insertion in model container [2022-11-20 10:56:53,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:56:51" (2/3) ... [2022-11-20 10:56:53,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41fed822 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:56:53, skipping insertion in model container [2022-11-20 10:56:53,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:56:53" (3/3) ... [2022-11-20 10:56:53,189 INFO L112 eAbstractionObserver]: Analyzing ICFG array-eq-trans.wvr.c [2022-11-20 10:56:53,203 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:56:53,217 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:56:53,218 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 81 error locations. [2022-11-20 10:56:53,218 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:56:53,408 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 10:56:53,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 621 places, 644 transitions, 1312 flow [2022-11-20 10:56:53,711 INFO L130 PetriNetUnfolder]: 33/641 cut-off events. [2022-11-20 10:56:53,712 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 10:56:53,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 654 conditions, 641 events. 33/641 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1327 event pairs, 0 based on Foata normal form. 0/527 useless extension candidates. Maximal degree in co-relation 364. Up to 3 conditions per place. [2022-11-20 10:56:53,725 INFO L82 GeneralOperation]: Start removeDead. Operand has 621 places, 644 transitions, 1312 flow [2022-11-20 10:56:53,743 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 593 places, 613 transitions, 1244 flow [2022-11-20 10:56:53,761 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:56:53,768 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;@754bd659, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:56:53,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 120 error locations. [2022-11-20 10:56:53,776 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-20 10:56:53,776 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:56:53,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:56:53,778 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:53,779 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:56:53,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:53,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1418968212, now seen corresponding path program 1 times [2022-11-20 10:56:53,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:53,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431109123] [2022-11-20 10:56:53,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:53,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:53,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:54,040 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 10:56:54,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:54,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431109123] [2022-11-20 10:56:54,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431109123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:54,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:54,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:56:54,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372041560] [2022-11-20 10:56:54,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:54,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:56:54,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:54,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:56:54,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:56:54,120 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 644 [2022-11-20 10:56:54,131 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 593 places, 613 transitions, 1244 flow. Second operand has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states 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 10:56:54,132 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:56:54,132 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 644 [2022-11-20 10:56:54,133 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:56:54,700 INFO L130 PetriNetUnfolder]: 61/1128 cut-off events. [2022-11-20 10:56:54,700 INFO L131 PetriNetUnfolder]: For 36/38 co-relation queries the response was YES. [2022-11-20 10:56:54,711 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1228 conditions, 1128 events. 61/1128 cut-off events. For 36/38 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 5120 event pairs, 21 based on Foata normal form. 47/946 useless extension candidates. Maximal degree in co-relation 668. Up to 67 conditions per place. [2022-11-20 10:56:54,722 INFO L137 encePairwiseOnDemand]: 627/644 looper letters, 24 selfloop transitions, 2 changer transitions 8/598 dead transitions. [2022-11-20 10:56:54,723 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 594 places, 598 transitions, 1266 flow [2022-11-20 10:56:54,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:56:54,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:56:54,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1844 transitions. [2022-11-20 10:56:54,745 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9544513457556936 [2022-11-20 10:56:54,746 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1844 transitions. [2022-11-20 10:56:54,746 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1844 transitions. [2022-11-20 10:56:54,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:56:54,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1844 transitions. [2022-11-20 10:56:54,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 614.6666666666666) internal successors, (1844), 3 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states 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 10:56:54,786 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:56:54,788 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:56:54,791 INFO L175 Difference]: Start difference. First operand has 593 places, 613 transitions, 1244 flow. Second operand 3 states and 1844 transitions. [2022-11-20 10:56:54,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 594 places, 598 transitions, 1266 flow [2022-11-20 10:56:54,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 588 places, 598 transitions, 1254 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 10:56:54,820 INFO L231 Difference]: Finished difference. Result has 588 places, 590 transitions, 1190 flow [2022-11-20 10:56:54,824 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1202, PETRI_DIFFERENCE_MINUEND_PLACES=586, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=598, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=596, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1190, PETRI_PLACES=588, PETRI_TRANSITIONS=590} [2022-11-20 10:56:54,831 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -5 predicate places. [2022-11-20 10:56:54,831 INFO L495 AbstractCegarLoop]: Abstraction has has 588 places, 590 transitions, 1190 flow [2022-11-20 10:56:54,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states 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 10:56:54,833 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:56:54,833 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:54,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:56:54,834 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:56:54,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:54,835 INFO L85 PathProgramCache]: Analyzing trace with hash 861718606, now seen corresponding path program 1 times [2022-11-20 10:56:54,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:54,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821126376] [2022-11-20 10:56:54,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:54,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:54,970 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 10:56:54,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:54,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821126376] [2022-11-20 10:56:54,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821126376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:54,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:54,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:56:54,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640721461] [2022-11-20 10:56:54,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:54,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:56:54,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:54,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:56:54,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:56:54,978 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 644 [2022-11-20 10:56:54,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 588 places, 590 transitions, 1190 flow. Second operand has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states 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 10:56:54,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:56:54,982 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 644 [2022-11-20 10:56:54,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:56:55,494 INFO L130 PetriNetUnfolder]: 90/1380 cut-off events. [2022-11-20 10:56:55,494 INFO L131 PetriNetUnfolder]: For 10/21 co-relation queries the response was YES. [2022-11-20 10:56:55,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1505 conditions, 1380 events. 90/1380 cut-off events. For 10/21 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7915 event pairs, 39 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1468. Up to 98 conditions per place. [2022-11-20 10:56:55,520 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 24 selfloop transitions, 2 changer transitions 0/589 dead transitions. [2022-11-20 10:56:55,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 589 transitions, 1240 flow [2022-11-20 10:56:55,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:56:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:56:55,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1830 transitions. [2022-11-20 10:56:55,526 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9472049689440993 [2022-11-20 10:56:55,526 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1830 transitions. [2022-11-20 10:56:55,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1830 transitions. [2022-11-20 10:56:55,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:56:55,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1830 transitions. [2022-11-20 10:56:55,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.0) internal successors, (1830), 3 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states 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 10:56:55,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:56:55,540 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:56:55,540 INFO L175 Difference]: Start difference. First operand has 588 places, 590 transitions, 1190 flow. Second operand 3 states and 1830 transitions. [2022-11-20 10:56:55,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 589 transitions, 1240 flow [2022-11-20 10:56:55,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 589 transitions, 1236 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:56:55,608 INFO L231 Difference]: Finished difference. Result has 579 places, 589 transitions, 1188 flow [2022-11-20 10:56:55,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1184, PETRI_DIFFERENCE_MINUEND_PLACES=577, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=589, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=587, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1188, PETRI_PLACES=579, PETRI_TRANSITIONS=589} [2022-11-20 10:56:55,610 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -14 predicate places. [2022-11-20 10:56:55,611 INFO L495 AbstractCegarLoop]: Abstraction has has 579 places, 589 transitions, 1188 flow [2022-11-20 10:56:55,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states 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 10:56:55,612 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:56:55,612 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:56:55,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:56:55,613 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:56:55,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:55,614 INFO L85 PathProgramCache]: Analyzing trace with hash 132271975, now seen corresponding path program 1 times [2022-11-20 10:56:55,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:55,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374559228] [2022-11-20 10:56:55,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:55,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:55,700 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 10:56:55,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:55,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374559228] [2022-11-20 10:56:55,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374559228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:55,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:55,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:56:55,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666546175] [2022-11-20 10:56:55,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:55,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:56:55,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:55,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:56:55,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:56:55,707 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 601 out of 644 [2022-11-20 10:56:55,711 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 589 transitions, 1188 flow. Second operand has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states 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 10:56:55,711 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:56:55,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 601 of 644 [2022-11-20 10:56:55,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:56:56,147 INFO L130 PetriNetUnfolder]: 83/1281 cut-off events. [2022-11-20 10:56:56,147 INFO L131 PetriNetUnfolder]: For 26/30 co-relation queries the response was YES. [2022-11-20 10:56:56,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1392 conditions, 1281 events. 83/1281 cut-off events. For 26/30 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6604 event pairs, 39 based on Foata normal form. 0/1042 useless extension candidates. Maximal degree in co-relation 1348. Up to 99 conditions per place. [2022-11-20 10:56:56,182 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 24 selfloop transitions, 2 changer transitions 0/588 dead transitions. [2022-11-20 10:56:56,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 580 places, 588 transitions, 1238 flow [2022-11-20 10:56:56,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:56:56,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:56:56,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1830 transitions. [2022-11-20 10:56:56,188 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9472049689440993 [2022-11-20 10:56:56,190 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1830 transitions. [2022-11-20 10:56:56,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1830 transitions. [2022-11-20 10:56:56,192 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:56:56,192 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1830 transitions. [2022-11-20 10:56:56,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 610.0) internal successors, (1830), 3 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states 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 10:56:56,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:56:56,205 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:56:56,206 INFO L175 Difference]: Start difference. First operand has 579 places, 589 transitions, 1188 flow. Second operand 3 states and 1830 transitions. [2022-11-20 10:56:56,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 580 places, 588 transitions, 1238 flow [2022-11-20 10:56:56,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 588 transitions, 1234 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:56:56,221 INFO L231 Difference]: Finished difference. Result has 578 places, 588 transitions, 1186 flow [2022-11-20 10:56:56,222 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1182, PETRI_DIFFERENCE_MINUEND_PLACES=576, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1186, PETRI_PLACES=578, PETRI_TRANSITIONS=588} [2022-11-20 10:56:56,228 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -15 predicate places. [2022-11-20 10:56:56,228 INFO L495 AbstractCegarLoop]: Abstraction has has 578 places, 588 transitions, 1186 flow [2022-11-20 10:56:56,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 602.3333333333334) internal successors, (1807), 3 states have internal predecessors, (1807), 0 states have call successors, (0), 0 states 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 10:56:56,230 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:56:56,230 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] [2022-11-20 10:56:56,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:56:56,231 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:56:56,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:56,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1473296039, now seen corresponding path program 1 times [2022-11-20 10:56:56,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:56,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901553905] [2022-11-20 10:56:56,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:56,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:56,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:56:56,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:56,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901553905] [2022-11-20 10:56:56,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901553905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:56,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:56,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:56:56,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406416870] [2022-11-20 10:56:56,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:56,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:56:56,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:56,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:56:56,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:56:56,329 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-20 10:56:56,333 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 578 places, 588 transitions, 1186 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:56:56,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:56:56,334 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-20 10:56:56,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:56:56,655 INFO L130 PetriNetUnfolder]: 49/1036 cut-off events. [2022-11-20 10:56:56,655 INFO L131 PetriNetUnfolder]: For 7/8 co-relation queries the response was YES. [2022-11-20 10:56:56,664 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1090 conditions, 1036 events. 49/1036 cut-off events. For 7/8 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4356 event pairs, 12 based on Foata normal form. 0/849 useless extension candidates. Maximal degree in co-relation 1038. Up to 40 conditions per place. [2022-11-20 10:56:56,671 INFO L137 encePairwiseOnDemand]: 638/644 looper letters, 17 selfloop transitions, 1 changer transitions 0/583 dead transitions. [2022-11-20 10:56:56,672 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 583 transitions, 1212 flow [2022-11-20 10:56:56,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:56:56,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:56:56,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1835 transitions. [2022-11-20 10:56:56,677 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497929606625258 [2022-11-20 10:56:56,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1835 transitions. [2022-11-20 10:56:56,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1835 transitions. [2022-11-20 10:56:56,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:56:56,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1835 transitions. [2022-11-20 10:56:56,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states 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 10:56:56,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:56:56,691 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:56:56,691 INFO L175 Difference]: Start difference. First operand has 578 places, 588 transitions, 1186 flow. Second operand 3 states and 1835 transitions. [2022-11-20 10:56:56,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 583 transitions, 1212 flow [2022-11-20 10:56:56,696 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 583 transitions, 1208 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:56:56,703 INFO L231 Difference]: Finished difference. Result has 573 places, 583 transitions, 1174 flow [2022-11-20 10:56:56,704 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1172, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=582, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1174, PETRI_PLACES=573, PETRI_TRANSITIONS=583} [2022-11-20 10:56:56,705 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -20 predicate places. [2022-11-20 10:56:56,706 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 583 transitions, 1174 flow [2022-11-20 10:56:56,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:56:56,707 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:56:56,708 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] [2022-11-20 10:56:56,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:56:56,708 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:56:56,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:56,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1043330331, now seen corresponding path program 1 times [2022-11-20 10:56:56,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:56,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929956373] [2022-11-20 10:56:56,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:56,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:56,784 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 10:56:56,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:56,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929956373] [2022-11-20 10:56:56,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929956373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:56,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:56,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:56:56,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696359634] [2022-11-20 10:56:56,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:56,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:56:56,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:56,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:56:56,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:56:56,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-20 10:56:56,792 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 583 transitions, 1174 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:56:56,793 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:56:56,793 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-20 10:56:56,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:56:57,086 INFO L130 PetriNetUnfolder]: 55/1079 cut-off events. [2022-11-20 10:56:57,086 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2022-11-20 10:56:57,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1162 conditions, 1079 events. 55/1079 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4881 event pairs, 21 based on Foata normal form. 0/886 useless extension candidates. Maximal degree in co-relation 1111. Up to 69 conditions per place. [2022-11-20 10:56:57,107 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 21 selfloop transitions, 2 changer transitions 0/582 dead transitions. [2022-11-20 10:56:57,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 574 places, 582 transitions, 1218 flow [2022-11-20 10:56:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:56:57,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:56:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1836 transitions. [2022-11-20 10:56:57,112 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503105590062112 [2022-11-20 10:56:57,113 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1836 transitions. [2022-11-20 10:56:57,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1836 transitions. [2022-11-20 10:56:57,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:56:57,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1836 transitions. [2022-11-20 10:56:57,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.0) internal successors, (1836), 3 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states 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 10:56:57,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:56:57,126 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:56:57,126 INFO L175 Difference]: Start difference. First operand has 573 places, 583 transitions, 1174 flow. Second operand 3 states and 1836 transitions. [2022-11-20 10:56:57,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 574 places, 582 transitions, 1218 flow [2022-11-20 10:56:57,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 582 transitions, 1217 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:56:57,139 INFO L231 Difference]: Finished difference. Result has 573 places, 582 transitions, 1175 flow [2022-11-20 10:56:57,140 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1171, PETRI_DIFFERENCE_MINUEND_PLACES=571, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=582, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1175, PETRI_PLACES=573, PETRI_TRANSITIONS=582} [2022-11-20 10:56:57,141 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -20 predicate places. [2022-11-20 10:56:57,141 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 582 transitions, 1175 flow [2022-11-20 10:56:57,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:56:57,143 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:56:57,143 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] [2022-11-20 10:56:57,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:56:57,144 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:56:57,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:56:57,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1405162842, now seen corresponding path program 1 times [2022-11-20 10:56:57,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:56:57,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163917447] [2022-11-20 10:56:57,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:56:57,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:56:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:56:57,765 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 10:56:57,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:56:57,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163917447] [2022-11-20 10:56:57,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163917447] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:56:57,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:56:57,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:56:57,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009559151] [2022-11-20 10:56:57,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:56:57,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:56:57,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:56:57,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:56:57,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:56:57,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 644 [2022-11-20 10:56:57,783 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 582 transitions, 1175 flow. Second operand has 6 states, 6 states have (on average 482.8333333333333) internal successors, (2897), 6 states have internal predecessors, (2897), 0 states have call successors, (0), 0 states 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 10:56:57,783 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:56:57,783 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 644 [2022-11-20 10:56:57,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:20,902 INFO L130 PetriNetUnfolder]: 45454/109850 cut-off events. [2022-11-20 10:57:20,904 INFO L131 PetriNetUnfolder]: For 351/407 co-relation queries the response was YES. [2022-11-20 10:57:21,672 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170125 conditions, 109850 events. 45454/109850 cut-off events. For 351/407 co-relation queries the response was YES. Maximal size of possible extension queue 3212. Compared 1414452 event pairs, 42984 based on Foata normal form. 0/89767 useless extension candidates. Maximal degree in co-relation 170075. Up to 60072 conditions per place. [2022-11-20 10:57:22,468 INFO L137 encePairwiseOnDemand]: 626/644 looper letters, 128 selfloop transitions, 15 changer transitions 0/579 dead transitions. [2022-11-20 10:57:22,469 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 579 transitions, 1455 flow [2022-11-20 10:57:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 10:57:22,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 10:57:22,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3032 transitions. [2022-11-20 10:57:22,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7846790890269151 [2022-11-20 10:57:22,477 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3032 transitions. [2022-11-20 10:57:22,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3032 transitions. [2022-11-20 10:57:22,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:22,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3032 transitions. [2022-11-20 10:57:22,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 505.3333333333333) internal successors, (3032), 6 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states 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 10:57:22,507 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 644.0) internal successors, (4508), 7 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states 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 10:57:22,519 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 644.0) internal successors, (4508), 7 states have internal predecessors, (4508), 0 states have call successors, (0), 0 states 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 10:57:22,519 INFO L175 Difference]: Start difference. First operand has 573 places, 582 transitions, 1175 flow. Second operand 6 states and 3032 transitions. [2022-11-20 10:57:22,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 579 transitions, 1455 flow [2022-11-20 10:57:22,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 573 places, 579 transitions, 1451 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:57:22,532 INFO L231 Difference]: Finished difference. Result has 573 places, 579 transitions, 1195 flow [2022-11-20 10:57:22,533 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1165, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=579, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1195, PETRI_PLACES=573, PETRI_TRANSITIONS=579} [2022-11-20 10:57:22,537 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -20 predicate places. [2022-11-20 10:57:22,537 INFO L495 AbstractCegarLoop]: Abstraction has has 573 places, 579 transitions, 1195 flow [2022-11-20 10:57:22,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 482.8333333333333) internal successors, (2897), 6 states have internal predecessors, (2897), 0 states have call successors, (0), 0 states 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 10:57:22,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:22,539 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:22,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:57:22,539 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:57:22,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:22,540 INFO L85 PathProgramCache]: Analyzing trace with hash 244814682, now seen corresponding path program 1 times [2022-11-20 10:57:22,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:22,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282729183] [2022-11-20 10:57:22,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:22,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:22,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:22,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:57:22,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:22,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282729183] [2022-11-20 10:57:22,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282729183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:22,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:22,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:57:22,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450991895] [2022-11-20 10:57:22,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:22,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:57:22,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:22,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:57:22,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:57:22,647 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-20 10:57:22,649 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 579 transitions, 1195 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:57:22,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:22,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-20 10:57:22,650 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:22,942 INFO L130 PetriNetUnfolder]: 66/1230 cut-off events. [2022-11-20 10:57:22,942 INFO L131 PetriNetUnfolder]: For 8/13 co-relation queries the response was YES. [2022-11-20 10:57:22,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1319 conditions, 1230 events. 66/1230 cut-off events. For 8/13 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6481 event pairs, 20 based on Foata normal form. 0/1013 useless extension candidates. Maximal degree in co-relation 1271. Up to 55 conditions per place. [2022-11-20 10:57:22,966 INFO L137 encePairwiseOnDemand]: 638/644 looper letters, 17 selfloop transitions, 1 changer transitions 0/574 dead transitions. [2022-11-20 10:57:22,967 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 570 places, 574 transitions, 1221 flow [2022-11-20 10:57:22,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:57:22,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:57:22,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1835 transitions. [2022-11-20 10:57:22,972 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497929606625258 [2022-11-20 10:57:22,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1835 transitions. [2022-11-20 10:57:22,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1835 transitions. [2022-11-20 10:57:22,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:22,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1835 transitions. [2022-11-20 10:57:22,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states 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 10:57:22,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:22,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:22,984 INFO L175 Difference]: Start difference. First operand has 573 places, 579 transitions, 1195 flow. Second operand 3 states and 1835 transitions. [2022-11-20 10:57:22,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 570 places, 574 transitions, 1221 flow [2022-11-20 10:57:22,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 574 transitions, 1191 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 10:57:22,998 INFO L231 Difference]: Finished difference. Result has 565 places, 574 transitions, 1157 flow [2022-11-20 10:57:22,999 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1155, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=574, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1157, PETRI_PLACES=565, PETRI_TRANSITIONS=574} [2022-11-20 10:57:23,000 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -28 predicate places. [2022-11-20 10:57:23,001 INFO L495 AbstractCegarLoop]: Abstraction has has 565 places, 574 transitions, 1157 flow [2022-11-20 10:57:23,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:57:23,002 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:23,002 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] [2022-11-20 10:57:23,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:57:23,003 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:57:23,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:23,003 INFO L85 PathProgramCache]: Analyzing trace with hash 707788467, now seen corresponding path program 1 times [2022-11-20 10:57:23,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:23,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118772338] [2022-11-20 10:57:23,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:23,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:23,072 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 10:57:23,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:23,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118772338] [2022-11-20 10:57:23,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118772338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:23,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:23,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:57:23,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252800714] [2022-11-20 10:57:23,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:23,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:57:23,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:23,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:57:23,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:57:23,078 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-20 10:57:23,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 574 transitions, 1157 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:57:23,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:23,081 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-20 10:57:23,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:23,367 INFO L130 PetriNetUnfolder]: 83/1298 cut-off events. [2022-11-20 10:57:23,367 INFO L131 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2022-11-20 10:57:23,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1421 conditions, 1298 events. 83/1298 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7143 event pairs, 39 based on Foata normal form. 0/1066 useless extension candidates. Maximal degree in co-relation 1370. Up to 96 conditions per place. [2022-11-20 10:57:23,387 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 21 selfloop transitions, 2 changer transitions 0/573 dead transitions. [2022-11-20 10:57:23,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 566 places, 573 transitions, 1201 flow [2022-11-20 10:57:23,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:57:23,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:57:23,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1836 transitions. [2022-11-20 10:57:23,394 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503105590062112 [2022-11-20 10:57:23,394 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1836 transitions. [2022-11-20 10:57:23,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1836 transitions. [2022-11-20 10:57:23,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:23,396 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1836 transitions. [2022-11-20 10:57:23,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.0) internal successors, (1836), 3 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states 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 10:57:23,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:23,405 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:23,405 INFO L175 Difference]: Start difference. First operand has 565 places, 574 transitions, 1157 flow. Second operand 3 states and 1836 transitions. [2022-11-20 10:57:23,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 566 places, 573 transitions, 1201 flow [2022-11-20 10:57:23,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 565 places, 573 transitions, 1200 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:57:23,419 INFO L231 Difference]: Finished difference. Result has 565 places, 573 transitions, 1158 flow [2022-11-20 10:57:23,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1154, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=573, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=571, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1158, PETRI_PLACES=565, PETRI_TRANSITIONS=573} [2022-11-20 10:57:23,425 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -28 predicate places. [2022-11-20 10:57:23,425 INFO L495 AbstractCegarLoop]: Abstraction has has 565 places, 573 transitions, 1158 flow [2022-11-20 10:57:23,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:57:23,427 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:23,427 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] [2022-11-20 10:57:23,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:57:23,427 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:57:23,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:23,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2111893535, now seen corresponding path program 1 times [2022-11-20 10:57:23,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:23,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118608830] [2022-11-20 10:57:23,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:23,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:23,503 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 10:57:23,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:23,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118608830] [2022-11-20 10:57:23,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118608830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:23,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:23,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:57:23,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441021384] [2022-11-20 10:57:23,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:23,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:57:23,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:23,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:57:23,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:57:23,510 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-20 10:57:23,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 565 places, 573 transitions, 1158 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:57:23,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:23,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-20 10:57:23,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:23,787 INFO L130 PetriNetUnfolder]: 59/1118 cut-off events. [2022-11-20 10:57:23,788 INFO L131 PetriNetUnfolder]: For 17/19 co-relation queries the response was YES. [2022-11-20 10:57:23,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 1118 events. 59/1118 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5183 event pairs, 20 based on Foata normal form. 0/941 useless extension candidates. Maximal degree in co-relation 1136. Up to 56 conditions per place. [2022-11-20 10:57:23,809 INFO L137 encePairwiseOnDemand]: 638/644 looper letters, 17 selfloop transitions, 1 changer transitions 0/568 dead transitions. [2022-11-20 10:57:23,809 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 562 places, 568 transitions, 1184 flow [2022-11-20 10:57:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:57:23,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:57:23,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1835 transitions. [2022-11-20 10:57:23,817 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9497929606625258 [2022-11-20 10:57:23,817 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1835 transitions. [2022-11-20 10:57:23,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1835 transitions. [2022-11-20 10:57:23,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:23,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1835 transitions. [2022-11-20 10:57:23,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states 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 10:57:23,827 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:23,828 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:23,829 INFO L175 Difference]: Start difference. First operand has 565 places, 573 transitions, 1158 flow. Second operand 3 states and 1835 transitions. [2022-11-20 10:57:23,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 562 places, 568 transitions, 1184 flow [2022-11-20 10:57:23,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 568 transitions, 1180 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:57:23,841 INFO L231 Difference]: Finished difference. Result has 560 places, 568 transitions, 1146 flow [2022-11-20 10:57:23,842 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1144, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=568, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1146, PETRI_PLACES=560, PETRI_TRANSITIONS=568} [2022-11-20 10:57:23,843 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -33 predicate places. [2022-11-20 10:57:23,843 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 568 transitions, 1146 flow [2022-11-20 10:57:23,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:57:23,845 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:23,845 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] [2022-11-20 10:57:23,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 10:57:23,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:57:23,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:23,846 INFO L85 PathProgramCache]: Analyzing trace with hash -911574077, now seen corresponding path program 1 times [2022-11-20 10:57:23,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:23,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699107978] [2022-11-20 10:57:23,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:23,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:23,920 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 10:57:23,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:23,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699107978] [2022-11-20 10:57:23,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699107978] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:23,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:23,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:57:23,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707787672] [2022-11-20 10:57:23,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:23,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:57:23,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:23,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:57:23,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:57:23,932 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 604 out of 644 [2022-11-20 10:57:24,094 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 568 transitions, 1146 flow. Second operand has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:57:24,094 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:24,095 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 604 of 644 [2022-11-20 10:57:24,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:24,339 INFO L130 PetriNetUnfolder]: 74/1061 cut-off events. [2022-11-20 10:57:24,339 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-11-20 10:57:24,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1170 conditions, 1061 events. 74/1061 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4883 event pairs, 39 based on Foata normal form. 0/892 useless extension candidates. Maximal degree in co-relation 1119. Up to 96 conditions per place. [2022-11-20 10:57:24,355 INFO L137 encePairwiseOnDemand]: 641/644 looper letters, 21 selfloop transitions, 2 changer transitions 0/567 dead transitions. [2022-11-20 10:57:24,355 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 561 places, 567 transitions, 1190 flow [2022-11-20 10:57:24,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:57:24,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:57:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1836 transitions. [2022-11-20 10:57:24,360 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9503105590062112 [2022-11-20 10:57:24,360 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1836 transitions. [2022-11-20 10:57:24,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1836 transitions. [2022-11-20 10:57:24,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:24,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1836 transitions. [2022-11-20 10:57:24,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 612.0) internal successors, (1836), 3 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states 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 10:57:24,370 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:24,371 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:24,371 INFO L175 Difference]: Start difference. First operand has 560 places, 568 transitions, 1146 flow. Second operand 3 states and 1836 transitions. [2022-11-20 10:57:24,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 561 places, 567 transitions, 1190 flow [2022-11-20 10:57:24,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 560 places, 567 transitions, 1189 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:57:24,383 INFO L231 Difference]: Finished difference. Result has 560 places, 567 transitions, 1147 flow [2022-11-20 10:57:24,385 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1143, PETRI_DIFFERENCE_MINUEND_PLACES=558, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=565, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1147, PETRI_PLACES=560, PETRI_TRANSITIONS=567} [2022-11-20 10:57:24,386 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -33 predicate places. [2022-11-20 10:57:24,386 INFO L495 AbstractCegarLoop]: Abstraction has has 560 places, 567 transitions, 1147 flow [2022-11-20 10:57:24,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 605.3333333333334) internal successors, (1816), 3 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states 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 10:57:24,387 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:24,387 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 10:57:24,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 10:57:24,388 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:57:24,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:24,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1236871821, now seen corresponding path program 1 times [2022-11-20 10:57:24,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:24,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886412765] [2022-11-20 10:57:24,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:24,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:24,465 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 10:57:24,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:24,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886412765] [2022-11-20 10:57:24,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886412765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:24,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:24,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:57:24,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170954103] [2022-11-20 10:57:24,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:24,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:57:24,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:24,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:57:24,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:57:24,470 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 644 [2022-11-20 10:57:24,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 560 places, 567 transitions, 1147 flow. Second operand has 3 states, 3 states have (on average 593.0) internal successors, (1779), 3 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states 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 10:57:24,473 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:24,473 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 644 [2022-11-20 10:57:24,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:24,635 INFO L130 PetriNetUnfolder]: 48/700 cut-off events. [2022-11-20 10:57:24,636 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 10:57:24,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 816 conditions, 700 events. 48/700 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2194 event pairs, 6 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 766. Up to 61 conditions per place. [2022-11-20 10:57:24,645 INFO L137 encePairwiseOnDemand]: 633/644 looper letters, 27 selfloop transitions, 2 changer transitions 0/560 dead transitions. [2022-11-20 10:57:24,645 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 553 places, 560 transitions, 1193 flow [2022-11-20 10:57:24,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:57:24,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:57:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1814 transitions. [2022-11-20 10:57:24,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9389233954451346 [2022-11-20 10:57:24,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1814 transitions. [2022-11-20 10:57:24,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1814 transitions. [2022-11-20 10:57:24,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:24,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1814 transitions. [2022-11-20 10:57:24,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.6666666666666) internal successors, (1814), 3 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states 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 10:57:24,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:24,661 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:24,661 INFO L175 Difference]: Start difference. First operand has 560 places, 567 transitions, 1147 flow. Second operand 3 states and 1814 transitions. [2022-11-20 10:57:24,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 553 places, 560 transitions, 1193 flow [2022-11-20 10:57:24,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 551 places, 560 transitions, 1189 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:57:24,672 INFO L231 Difference]: Finished difference. Result has 551 places, 558 transitions, 1129 flow [2022-11-20 10:57:24,673 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1125, PETRI_DIFFERENCE_MINUEND_PLACES=549, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=558, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=556, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1129, PETRI_PLACES=551, PETRI_TRANSITIONS=558} [2022-11-20 10:57:24,674 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -42 predicate places. [2022-11-20 10:57:24,674 INFO L495 AbstractCegarLoop]: Abstraction has has 551 places, 558 transitions, 1129 flow [2022-11-20 10:57:24,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.0) internal successors, (1779), 3 states have internal predecessors, (1779), 0 states have call successors, (0), 0 states 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 10:57:24,675 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:24,676 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] [2022-11-20 10:57:24,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 10:57:24,676 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:57:24,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:24,677 INFO L85 PathProgramCache]: Analyzing trace with hash -642911240, now seen corresponding path program 1 times [2022-11-20 10:57:24,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:24,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491151994] [2022-11-20 10:57:24,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:24,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:24,764 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 10:57:24,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:24,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491151994] [2022-11-20 10:57:24,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491151994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:24,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:24,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:57:24,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264582087] [2022-11-20 10:57:24,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:24,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:57:24,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:24,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:57:24,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:57:24,769 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 644 [2022-11-20 10:57:24,771 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 551 places, 558 transitions, 1129 flow. Second operand has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states 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 10:57:24,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:24,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 644 [2022-11-20 10:57:24,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:24,988 INFO L130 PetriNetUnfolder]: 51/779 cut-off events. [2022-11-20 10:57:24,988 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-20 10:57:24,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 882 conditions, 779 events. 51/779 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2844 event pairs, 20 based on Foata normal form. 0/689 useless extension candidates. Maximal degree in co-relation 832. Up to 60 conditions per place. [2022-11-20 10:57:25,001 INFO L137 encePairwiseOnDemand]: 633/644 looper letters, 27 selfloop transitions, 2 changer transitions 0/551 dead transitions. [2022-11-20 10:57:25,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 551 transitions, 1175 flow [2022-11-20 10:57:25,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:57:25,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:57:25,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1814 transitions. [2022-11-20 10:57:25,006 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9389233954451346 [2022-11-20 10:57:25,006 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1814 transitions. [2022-11-20 10:57:25,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1814 transitions. [2022-11-20 10:57:25,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:25,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1814 transitions. [2022-11-20 10:57:25,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.6666666666666) internal successors, (1814), 3 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states 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 10:57:25,016 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:25,017 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:25,018 INFO L175 Difference]: Start difference. First operand has 551 places, 558 transitions, 1129 flow. Second operand 3 states and 1814 transitions. [2022-11-20 10:57:25,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 551 transitions, 1175 flow [2022-11-20 10:57:25,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 551 transitions, 1171 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:57:25,031 INFO L231 Difference]: Finished difference. Result has 542 places, 549 transitions, 1111 flow [2022-11-20 10:57:25,032 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1111, PETRI_PLACES=542, PETRI_TRANSITIONS=549} [2022-11-20 10:57:25,033 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -51 predicate places. [2022-11-20 10:57:25,033 INFO L495 AbstractCegarLoop]: Abstraction has has 542 places, 549 transitions, 1111 flow [2022-11-20 10:57:25,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.3333333333334) internal successors, (1780), 3 states have internal predecessors, (1780), 0 states have call successors, (0), 0 states 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 10:57:25,034 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:25,035 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 10:57:25,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 10:57:25,035 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:57:25,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:25,036 INFO L85 PathProgramCache]: Analyzing trace with hash -965931463, now seen corresponding path program 1 times [2022-11-20 10:57:25,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:25,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175693079] [2022-11-20 10:57:25,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:25,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:25,113 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 10:57:25,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:25,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175693079] [2022-11-20 10:57:25,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175693079] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:25,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:25,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:57:25,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448913303] [2022-11-20 10:57:25,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:25,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:57:25,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:25,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:57:25,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:57:25,118 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 644 [2022-11-20 10:57:25,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 542 places, 549 transitions, 1111 flow. Second operand has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states 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 10:57:25,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:25,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 644 [2022-11-20 10:57:25,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:25,265 INFO L130 PetriNetUnfolder]: 38/676 cut-off events. [2022-11-20 10:57:25,265 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 10:57:25,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 676 events. 38/676 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1906 event pairs, 12 based on Foata normal form. 0/605 useless extension candidates. Maximal degree in co-relation 702. Up to 37 conditions per place. [2022-11-20 10:57:25,273 INFO L137 encePairwiseOnDemand]: 640/644 looper letters, 14 selfloop transitions, 3 changer transitions 0/552 dead transitions. [2022-11-20 10:57:25,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 552 transitions, 1153 flow [2022-11-20 10:57:25,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:57:25,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:57:25,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1860 transitions. [2022-11-20 10:57:25,279 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9627329192546584 [2022-11-20 10:57:25,279 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1860 transitions. [2022-11-20 10:57:25,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1860 transitions. [2022-11-20 10:57:25,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:25,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1860 transitions. [2022-11-20 10:57:25,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states 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 10:57:25,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:25,291 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:25,291 INFO L175 Difference]: Start difference. First operand has 542 places, 549 transitions, 1111 flow. Second operand 3 states and 1860 transitions. [2022-11-20 10:57:25,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 552 transitions, 1153 flow [2022-11-20 10:57:25,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 552 transitions, 1149 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:57:25,303 INFO L231 Difference]: Finished difference. Result has 544 places, 550 transitions, 1125 flow [2022-11-20 10:57:25,304 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1107, PETRI_DIFFERENCE_MINUEND_PLACES=540, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=549, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=546, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1125, PETRI_PLACES=544, PETRI_TRANSITIONS=550} [2022-11-20 10:57:25,305 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -49 predicate places. [2022-11-20 10:57:25,305 INFO L495 AbstractCegarLoop]: Abstraction has has 544 places, 550 transitions, 1125 flow [2022-11-20 10:57:25,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 615.6666666666666) internal successors, (1847), 3 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states 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 10:57:25,307 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:25,307 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] [2022-11-20 10:57:25,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 10:57:25,307 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:57:25,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:25,308 INFO L85 PathProgramCache]: Analyzing trace with hash -883135441, now seen corresponding path program 1 times [2022-11-20 10:57:25,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:25,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699186902] [2022-11-20 10:57:25,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:25,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:25,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:25,391 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 10:57:25,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:25,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699186902] [2022-11-20 10:57:25,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699186902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:25,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:25,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:57:25,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689593945] [2022-11-20 10:57:25,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:25,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:57:25,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:25,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:57:25,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:57:25,396 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 592 out of 644 [2022-11-20 10:57:25,399 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 544 places, 550 transitions, 1125 flow. Second operand has 3 states, 3 states have (on average 593.6666666666666) internal successors, (1781), 3 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states 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 10:57:25,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:25,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 592 of 644 [2022-11-20 10:57:25,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:25,573 INFO L130 PetriNetUnfolder]: 48/683 cut-off events. [2022-11-20 10:57:25,573 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-20 10:57:25,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 780 conditions, 683 events. 48/683 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2335 event pairs, 6 based on Foata normal form. 0/619 useless extension candidates. Maximal degree in co-relation 729. Up to 59 conditions per place. [2022-11-20 10:57:25,580 INFO L137 encePairwiseOnDemand]: 633/644 looper letters, 27 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2022-11-20 10:57:25,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 543 transitions, 1171 flow [2022-11-20 10:57:25,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:57:25,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:57:25,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1814 transitions. [2022-11-20 10:57:25,586 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9389233954451346 [2022-11-20 10:57:25,586 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1814 transitions. [2022-11-20 10:57:25,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1814 transitions. [2022-11-20 10:57:25,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:25,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1814 transitions. [2022-11-20 10:57:25,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 604.6666666666666) internal successors, (1814), 3 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states 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 10:57:25,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:25,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:25,597 INFO L175 Difference]: Start difference. First operand has 544 places, 550 transitions, 1125 flow. Second operand 3 states and 1814 transitions. [2022-11-20 10:57:25,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 543 transitions, 1171 flow [2022-11-20 10:57:25,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 535 places, 543 transitions, 1165 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:57:25,609 INFO L231 Difference]: Finished difference. Result has 535 places, 541 transitions, 1105 flow [2022-11-20 10:57:25,611 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1101, PETRI_DIFFERENCE_MINUEND_PLACES=533, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=539, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1105, PETRI_PLACES=535, PETRI_TRANSITIONS=541} [2022-11-20 10:57:25,612 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -58 predicate places. [2022-11-20 10:57:25,612 INFO L495 AbstractCegarLoop]: Abstraction has has 535 places, 541 transitions, 1105 flow [2022-11-20 10:57:25,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.6666666666666) internal successors, (1781), 3 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states 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 10:57:25,613 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:25,613 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:57:25,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 10:57:25,614 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:57:25,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:25,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1444306538, now seen corresponding path program 1 times [2022-11-20 10:57:25,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:25,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185533067] [2022-11-20 10:57:25,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:25,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:25,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:25,728 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 10:57:25,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:25,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185533067] [2022-11-20 10:57:25,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185533067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:25,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:25,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:57:25,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900661700] [2022-11-20 10:57:25,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:25,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:57:25,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:25,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:57:25,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:57:25,733 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 607 out of 644 [2022-11-20 10:57:25,737 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 535 places, 541 transitions, 1105 flow. Second operand has 3 states, 3 states have (on average 608.6666666666666) internal successors, (1826), 3 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states 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 10:57:25,737 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:25,737 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 607 of 644 [2022-11-20 10:57:25,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:25,973 INFO L130 PetriNetUnfolder]: 49/1005 cut-off events. [2022-11-20 10:57:25,974 INFO L131 PetriNetUnfolder]: For 13/13 co-relation queries the response was YES. [2022-11-20 10:57:25,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1094 conditions, 1005 events. 49/1005 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 3979 event pairs, 2 based on Foata normal form. 0/913 useless extension candidates. Maximal degree in co-relation 1043. Up to 45 conditions per place. [2022-11-20 10:57:25,988 INFO L137 encePairwiseOnDemand]: 636/644 looper letters, 21 selfloop transitions, 4 changer transitions 0/546 dead transitions. [2022-11-20 10:57:25,988 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 533 places, 546 transitions, 1170 flow [2022-11-20 10:57:25,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:57:25,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:57:25,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1850 transitions. [2022-11-20 10:57:25,995 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9575569358178054 [2022-11-20 10:57:25,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1850 transitions. [2022-11-20 10:57:25,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1850 transitions. [2022-11-20 10:57:25,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:25,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1850 transitions. [2022-11-20 10:57:26,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 616.6666666666666) internal successors, (1850), 3 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states 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 10:57:26,006 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:26,007 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:26,007 INFO L175 Difference]: Start difference. First operand has 535 places, 541 transitions, 1105 flow. Second operand 3 states and 1850 transitions. [2022-11-20 10:57:26,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 533 places, 546 transitions, 1170 flow [2022-11-20 10:57:26,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 531 places, 546 transitions, 1166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 10:57:26,020 INFO L231 Difference]: Finished difference. Result has 532 places, 541 transitions, 1121 flow [2022-11-20 10:57:26,022 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1093, PETRI_DIFFERENCE_MINUEND_PLACES=529, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=537, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=533, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1121, PETRI_PLACES=532, PETRI_TRANSITIONS=541} [2022-11-20 10:57:26,024 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -61 predicate places. [2022-11-20 10:57:26,024 INFO L495 AbstractCegarLoop]: Abstraction has has 532 places, 541 transitions, 1121 flow [2022-11-20 10:57:26,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 608.6666666666666) internal successors, (1826), 3 states have internal predecessors, (1826), 0 states have call successors, (0), 0 states 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 10:57:26,025 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:26,025 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 10:57:26,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 10:57:26,026 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:57:26,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:26,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1242759772, now seen corresponding path program 1 times [2022-11-20 10:57:26,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:26,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59626026] [2022-11-20 10:57:26,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:26,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:26,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:26,111 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 10:57:26,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:26,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59626026] [2022-11-20 10:57:26,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59626026] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:26,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:26,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:57:26,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061086491] [2022-11-20 10:57:26,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:26,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:57:26,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:26,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:57:26,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:57:26,119 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 644 [2022-11-20 10:57:26,121 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 532 places, 541 transitions, 1121 flow. Second operand has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states 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 10:57:26,121 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:26,121 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 644 [2022-11-20 10:57:26,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:57:26,395 INFO L130 PetriNetUnfolder]: 63/937 cut-off events. [2022-11-20 10:57:26,396 INFO L131 PetriNetUnfolder]: For 24/34 co-relation queries the response was YES. [2022-11-20 10:57:26,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 937 events. 63/937 cut-off events. For 24/34 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3764 event pairs, 18 based on Foata normal form. 0/839 useless extension candidates. Maximal degree in co-relation 1001. Up to 54 conditions per place. [2022-11-20 10:57:26,407 INFO L137 encePairwiseOnDemand]: 640/644 looper letters, 14 selfloop transitions, 3 changer transitions 0/544 dead transitions. [2022-11-20 10:57:26,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 534 places, 544 transitions, 1163 flow [2022-11-20 10:57:26,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:57:26,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:57:26,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1860 transitions. [2022-11-20 10:57:26,412 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9627329192546584 [2022-11-20 10:57:26,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1860 transitions. [2022-11-20 10:57:26,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1860 transitions. [2022-11-20 10:57:26,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:57:26,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1860 transitions. [2022-11-20 10:57:26,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states 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 10:57:26,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:26,425 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 644.0) internal successors, (2576), 4 states have internal predecessors, (2576), 0 states have call successors, (0), 0 states 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 10:57:26,427 INFO L175 Difference]: Start difference. First operand has 532 places, 541 transitions, 1121 flow. Second operand 3 states and 1860 transitions. [2022-11-20 10:57:26,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 534 places, 544 transitions, 1163 flow [2022-11-20 10:57:26,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 534 places, 544 transitions, 1163 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:57:26,436 INFO L231 Difference]: Finished difference. Result has 536 places, 542 transitions, 1139 flow [2022-11-20 10:57:26,437 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=644, PETRI_DIFFERENCE_MINUEND_FLOW=1121, PETRI_DIFFERENCE_MINUEND_PLACES=532, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=538, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1139, PETRI_PLACES=536, PETRI_TRANSITIONS=542} [2022-11-20 10:57:26,438 INFO L288 CegarLoopForPetriNet]: 593 programPoint places, -57 predicate places. [2022-11-20 10:57:26,440 INFO L495 AbstractCegarLoop]: Abstraction has has 536 places, 542 transitions, 1139 flow [2022-11-20 10:57:26,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 616.0) internal successors, (1848), 3 states have internal predecessors, (1848), 0 states have call successors, (0), 0 states 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 10:57:26,441 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:57:26,441 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 10:57:26,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 10:57:26,442 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 116 more)] === [2022-11-20 10:57:26,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:57:26,442 INFO L85 PathProgramCache]: Analyzing trace with hash -191153564, now seen corresponding path program 1 times [2022-11-20 10:57:26,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:57:26,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097211142] [2022-11-20 10:57:26,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:57:26,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:57:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:57:27,032 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 10:57:27,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:57:27,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097211142] [2022-11-20 10:57:27,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097211142] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:57:27,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:57:27,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:57:27,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718135696] [2022-11-20 10:57:27,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:57:27,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 10:57:27,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:57:27,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 10:57:27,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 10:57:27,038 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 508 out of 644 [2022-11-20 10:57:27,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 542 transitions, 1139 flow. Second operand has 6 states, 6 states have (on average 510.0) internal successors, (3060), 6 states have internal predecessors, (3060), 0 states have call successors, (0), 0 states 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 10:57:27,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:57:27,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 508 of 644 [2022-11-20 10:57:27,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand