./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/bench-exp3x3.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_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/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_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/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_f9f94783-b45f-4465-85da-5fff41eedef7/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 753355d7d8c08568df49ed9a7977f84d185e0dbf04984bcb7908b11aa84a04b9 --- 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 09:27:41,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:41,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:41,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:41,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:41,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:41,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:41,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:41,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:41,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:41,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:41,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:41,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:41,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:41,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:41,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:41,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:41,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:41,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:41,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:41,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:41,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:41,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:41,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:41,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:41,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:41,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:41,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:41,381 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:41,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:41,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:41,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:41,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:41,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:41,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:41,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:41,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:41,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:41,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:41,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:41,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:41,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:27:41,440 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:41,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:41,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:41,442 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:41,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:41,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:41,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:41,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:41,445 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:41,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:41,446 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:27:41,447 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:27:41,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:41,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:27:41,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:41,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:27:41,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:41,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:27:41,449 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:27:41,449 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:27:41,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:27:41,450 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:41,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:27:41,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:41,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:41,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:41,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:41,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:41,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:41,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:27:41,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:41,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:41,454 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:27:41,454 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:27:41,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:27:41,454 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_f9f94783-b45f-4465-85da-5fff41eedef7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 753355d7d8c08568df49ed9a7977f84d185e0dbf04984bcb7908b11aa84a04b9 [2022-11-20 09:27:41,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:41,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:41,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:41,763 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:41,763 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:41,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2022-11-20 09:27:45,062 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:45,292 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:45,293 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c [2022-11-20 09:27:45,301 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/data/4bd0abdb2/e27c657e52504247adb28f2b3a6f3dc7/FLAGa34655fc4 [2022-11-20 09:27:45,319 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/data/4bd0abdb2/e27c657e52504247adb28f2b3a6f3dc7 [2022-11-20 09:27:45,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:45,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:45,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:45,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:45,330 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:45,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a7ec1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45, skipping insertion in model container [2022-11-20 09:27:45,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,342 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:45,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:45,571 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_f9f94783-b45f-4465-85da-5fff41eedef7/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c[2625,2638] [2022-11-20 09:27:45,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:45,584 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:45,623 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_f9f94783-b45f-4465-85da-5fff41eedef7/sv-benchmarks/c/weaver/bench-exp3x3.wvr.c[2625,2638] [2022-11-20 09:27:45,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:45,644 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:45,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45 WrapperNode [2022-11-20 09:27:45,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:45,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:45,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:45,646 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:45,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,706 INFO L138 Inliner]: procedures = 22, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 241 [2022-11-20 09:27:45,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:45,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:45,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:45,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:45,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,754 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:45,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:45,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:45,761 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:45,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (1/1) ... [2022-11-20 09:27:45,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:45,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:45,812 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:45,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 09:27:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 09:27:45,859 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 09:27:45,859 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 09:27:45,861 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 09:27:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 09:27:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-11-20 09:27:45,862 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-11-20 09:27:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:27:45,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-11-20 09:27:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-11-20 09:27:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-11-20 09:27:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-11-20 09:27:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:27:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:27:45,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:45,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:45,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:27:45,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:27:45,866 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 09:27:46,074 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:46,077 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:27:46,794 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:27:46,820 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:27:46,820 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 09:27:46,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:46 BoogieIcfgContainer [2022-11-20 09:27:46,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:27:46,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:27:46,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:27:46,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:27:46,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:45" (1/3) ... [2022-11-20 09:27:46,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ef7da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:46, skipping insertion in model container [2022-11-20 09:27:46,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:45" (2/3) ... [2022-11-20 09:27:46,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ef7da7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:46, skipping insertion in model container [2022-11-20 09:27:46,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:46" (3/3) ... [2022-11-20 09:27:46,836 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2022-11-20 09:27:46,865 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:27:46,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:27:46,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2022-11-20 09:27:46,876 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:27:47,000 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2022-11-20 09:27:47,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 419 places, 421 transitions, 890 flow [2022-11-20 09:27:47,186 INFO L130 PetriNetUnfolder]: 21/415 cut-off events. [2022-11-20 09:27:47,191 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 09:27:47,203 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 415 events. 21/415 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 673 event pairs, 0 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 292. Up to 2 conditions per place. [2022-11-20 09:27:47,204 INFO L82 GeneralOperation]: Start removeDead. Operand has 419 places, 421 transitions, 890 flow [2022-11-20 09:27:47,220 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 385 places, 385 transitions, 806 flow [2022-11-20 09:27:47,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:27:47,245 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;@1a415020, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:27:47,246 INFO L358 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2022-11-20 09:27:47,257 INFO L130 PetriNetUnfolder]: 0/28 cut-off events. [2022-11-20 09:27:47,257 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:27:47,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:47,259 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 09:27:47,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:27:47,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:47,266 INFO L85 PathProgramCache]: Analyzing trace with hash -592576246, now seen corresponding path program 1 times [2022-11-20 09:27:47,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:47,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855760058] [2022-11-20 09:27:47,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:47,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:47,552 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 09:27:47,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:47,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855760058] [2022-11-20 09:27:47,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855760058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:47,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:47,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:47,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949256575] [2022-11-20 09:27:47,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:47,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:47,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:47,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:47,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:47,598 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 421 [2022-11-20 09:27:47,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 385 transitions, 806 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:47,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:47,604 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 421 [2022-11-20 09:27:47,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:47,881 INFO L130 PetriNetUnfolder]: 77/547 cut-off events. [2022-11-20 09:27:47,882 INFO L131 PetriNetUnfolder]: For 91/98 co-relation queries the response was YES. [2022-11-20 09:27:47,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 851 conditions, 547 events. 77/547 cut-off events. For 91/98 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2108 event pairs, 60 based on Foata normal form. 211/644 useless extension candidates. Maximal degree in co-relation 641. Up to 157 conditions per place. [2022-11-20 09:27:47,901 INFO L137 encePairwiseOnDemand]: 411/421 looper letters, 36 selfloop transitions, 2 changer transitions 1/377 dead transitions. [2022-11-20 09:27:47,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 386 places, 377 transitions, 866 flow [2022-11-20 09:27:47,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:47,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:47,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1165 transitions. [2022-11-20 09:27:47,919 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9224069675376089 [2022-11-20 09:27:47,920 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1165 transitions. [2022-11-20 09:27:47,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1165 transitions. [2022-11-20 09:27:47,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:47,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1165 transitions. [2022-11-20 09:27:47,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:47,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:47,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:47,945 INFO L175 Difference]: Start difference. First operand has 385 places, 385 transitions, 806 flow. Second operand 3 states and 1165 transitions. [2022-11-20 09:27:47,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 386 places, 377 transitions, 866 flow [2022-11-20 09:27:47,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 374 places, 377 transitions, 842 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-20 09:27:47,958 INFO L231 Difference]: Finished difference. Result has 374 places, 376 transitions, 768 flow [2022-11-20 09:27:47,961 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=372, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=375, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=768, PETRI_PLACES=374, PETRI_TRANSITIONS=376} [2022-11-20 09:27:47,964 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -11 predicate places. [2022-11-20 09:27:47,965 INFO L495 AbstractCegarLoop]: Abstraction has has 374 places, 376 transitions, 768 flow [2022-11-20 09:27:47,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:47,966 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:47,966 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:47,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:27:47,967 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:27:47,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:47,967 INFO L85 PathProgramCache]: Analyzing trace with hash 362749410, now seen corresponding path program 1 times [2022-11-20 09:27:47,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:47,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423954380] [2022-11-20 09:27:47,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:47,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,078 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 09:27:48,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:48,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423954380] [2022-11-20 09:27:48,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423954380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:48,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:48,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:48,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577346401] [2022-11-20 09:27:48,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:48,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:48,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:48,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:48,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:48,084 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 421 [2022-11-20 09:27:48,089 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 374 places, 376 transitions, 768 flow. Second operand has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,089 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:48,089 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 421 [2022-11-20 09:27:48,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:48,295 INFO L130 PetriNetUnfolder]: 77/545 cut-off events. [2022-11-20 09:27:48,295 INFO L131 PetriNetUnfolder]: For 18/24 co-relation queries the response was YES. [2022-11-20 09:27:48,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 545 events. 77/545 cut-off events. For 18/24 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2128 event pairs, 60 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 722. Up to 154 conditions per place. [2022-11-20 09:27:48,310 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 33 selfloop transitions, 2 changer transitions 0/375 dead transitions. [2022-11-20 09:27:48,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 375 transitions, 836 flow [2022-11-20 09:27:48,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:48,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:48,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1164 transitions. [2022-11-20 09:27:48,315 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9216152019002375 [2022-11-20 09:27:48,315 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1164 transitions. [2022-11-20 09:27:48,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1164 transitions. [2022-11-20 09:27:48,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:48,317 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1164 transitions. [2022-11-20 09:27:48,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,326 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,326 INFO L175 Difference]: Start difference. First operand has 374 places, 376 transitions, 768 flow. Second operand 3 states and 1164 transitions. [2022-11-20 09:27:48,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 375 transitions, 836 flow [2022-11-20 09:27:48,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 372 places, 375 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:48,372 INFO L231 Difference]: Finished difference. Result has 372 places, 375 transitions, 766 flow [2022-11-20 09:27:48,373 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=370, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=766, PETRI_PLACES=372, PETRI_TRANSITIONS=375} [2022-11-20 09:27:48,373 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -13 predicate places. [2022-11-20 09:27:48,374 INFO L495 AbstractCegarLoop]: Abstraction has has 372 places, 375 transitions, 766 flow [2022-11-20 09:27:48,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,375 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:48,375 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] [2022-11-20 09:27:48,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:27:48,378 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:27:48,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:48,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1185056100, now seen corresponding path program 1 times [2022-11-20 09:27:48,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:48,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837904533] [2022-11-20 09:27:48,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:48,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,465 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 09:27:48,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:48,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837904533] [2022-11-20 09:27:48,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837904533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:48,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:48,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:48,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690537477] [2022-11-20 09:27:48,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:48,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:48,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:48,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:48,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:48,470 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 421 [2022-11-20 09:27:48,472 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 372 places, 375 transitions, 766 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,472 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:48,472 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 421 [2022-11-20 09:27:48,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:48,685 INFO L130 PetriNetUnfolder]: 77/544 cut-off events. [2022-11-20 09:27:48,685 INFO L131 PetriNetUnfolder]: For 30/36 co-relation queries the response was YES. [2022-11-20 09:27:48,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 544 events. 77/544 cut-off events. For 30/36 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2081 event pairs, 60 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 706. Up to 157 conditions per place. [2022-11-20 09:27:48,701 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 36 selfloop transitions, 2 changer transitions 0/374 dead transitions. [2022-11-20 09:27:48,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 373 places, 374 transitions, 840 flow [2022-11-20 09:27:48,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:48,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:48,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1158 transitions. [2022-11-20 09:27:48,704 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9168646080760094 [2022-11-20 09:27:48,705 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1158 transitions. [2022-11-20 09:27:48,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1158 transitions. [2022-11-20 09:27:48,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:48,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1158 transitions. [2022-11-20 09:27:48,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,713 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,714 INFO L175 Difference]: Start difference. First operand has 372 places, 375 transitions, 766 flow. Second operand 3 states and 1158 transitions. [2022-11-20 09:27:48,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 373 places, 374 transitions, 840 flow [2022-11-20 09:27:48,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 374 transitions, 836 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:48,721 INFO L231 Difference]: Finished difference. Result has 371 places, 374 transitions, 764 flow [2022-11-20 09:27:48,722 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=369, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=764, PETRI_PLACES=371, PETRI_TRANSITIONS=374} [2022-11-20 09:27:48,725 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -14 predicate places. [2022-11-20 09:27:48,725 INFO L495 AbstractCegarLoop]: Abstraction has has 371 places, 374 transitions, 764 flow [2022-11-20 09:27:48,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,726 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:48,726 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 09:27:48,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:27:48,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:27:48,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:48,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1425601097, now seen corresponding path program 1 times [2022-11-20 09:27:48,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:48,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084878693] [2022-11-20 09:27:48,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:48,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:48,831 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 09:27:48,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:48,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084878693] [2022-11-20 09:27:48,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084878693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:48,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:48,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:48,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580059022] [2022-11-20 09:27:48,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:48,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:48,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:48,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:48,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:48,835 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 421 [2022-11-20 09:27:48,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 371 places, 374 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:48,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:48,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 421 [2022-11-20 09:27:48,838 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:49,072 INFO L130 PetriNetUnfolder]: 77/543 cut-off events. [2022-11-20 09:27:49,073 INFO L131 PetriNetUnfolder]: For 42/48 co-relation queries the response was YES. [2022-11-20 09:27:49,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 733 conditions, 543 events. 77/543 cut-off events. For 42/48 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2046 event pairs, 60 based on Foata normal form. 0/423 useless extension candidates. Maximal degree in co-relation 684. Up to 154 conditions per place. [2022-11-20 09:27:49,088 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 33 selfloop transitions, 2 changer transitions 0/373 dead transitions. [2022-11-20 09:27:49,089 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 373 transitions, 832 flow [2022-11-20 09:27:49,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:49,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:49,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1164 transitions. [2022-11-20 09:27:49,097 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9216152019002375 [2022-11-20 09:27:49,098 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1164 transitions. [2022-11-20 09:27:49,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1164 transitions. [2022-11-20 09:27:49,099 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:49,099 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1164 transitions. [2022-11-20 09:27:49,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,113 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,113 INFO L175 Difference]: Start difference. First operand has 371 places, 374 transitions, 764 flow. Second operand 3 states and 1164 transitions. [2022-11-20 09:27:49,113 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 373 transitions, 832 flow [2022-11-20 09:27:49,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 370 places, 373 transitions, 828 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:49,122 INFO L231 Difference]: Finished difference. Result has 370 places, 373 transitions, 762 flow [2022-11-20 09:27:49,123 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=758, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=370, PETRI_TRANSITIONS=373} [2022-11-20 09:27:49,125 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -15 predicate places. [2022-11-20 09:27:49,125 INFO L495 AbstractCegarLoop]: Abstraction has has 370 places, 373 transitions, 762 flow [2022-11-20 09:27:49,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,126 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:49,126 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] [2022-11-20 09:27:49,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:27:49,127 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:27:49,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:49,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1681475926, now seen corresponding path program 1 times [2022-11-20 09:27:49,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:49,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775419310] [2022-11-20 09:27:49,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:49,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:49,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:49,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:49,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775419310] [2022-11-20 09:27:49,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775419310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:49,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:49,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:49,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029886989] [2022-11-20 09:27:49,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:49,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:49,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:49,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:49,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:49,230 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 421 [2022-11-20 09:27:49,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 370 places, 373 transitions, 762 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:49,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 421 [2022-11-20 09:27:49,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:49,456 INFO L130 PetriNetUnfolder]: 77/542 cut-off events. [2022-11-20 09:27:49,457 INFO L131 PetriNetUnfolder]: For 54/60 co-relation queries the response was YES. [2022-11-20 09:27:49,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 542 events. 77/542 cut-off events. For 54/60 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2012 event pairs, 60 based on Foata normal form. 0/420 useless extension candidates. Maximal degree in co-relation 668. Up to 157 conditions per place. [2022-11-20 09:27:49,470 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 36 selfloop transitions, 2 changer transitions 0/372 dead transitions. [2022-11-20 09:27:49,470 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 372 transitions, 836 flow [2022-11-20 09:27:49,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:49,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:49,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1158 transitions. [2022-11-20 09:27:49,474 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9168646080760094 [2022-11-20 09:27:49,474 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1158 transitions. [2022-11-20 09:27:49,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1158 transitions. [2022-11-20 09:27:49,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:49,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1158 transitions. [2022-11-20 09:27:49,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.0) internal successors, (1158), 3 states have internal predecessors, (1158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,483 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,484 INFO L175 Difference]: Start difference. First operand has 370 places, 373 transitions, 762 flow. Second operand 3 states and 1158 transitions. [2022-11-20 09:27:49,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 372 transitions, 836 flow [2022-11-20 09:27:49,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 372 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:49,491 INFO L231 Difference]: Finished difference. Result has 369 places, 372 transitions, 760 flow [2022-11-20 09:27:49,492 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=372, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=370, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=760, PETRI_PLACES=369, PETRI_TRANSITIONS=372} [2022-11-20 09:27:49,496 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -16 predicate places. [2022-11-20 09:27:49,497 INFO L495 AbstractCegarLoop]: Abstraction has has 369 places, 372 transitions, 760 flow [2022-11-20 09:27:49,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,498 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:49,498 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] [2022-11-20 09:27:49,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:27:49,499 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:27:49,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:49,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1421376065, now seen corresponding path program 1 times [2022-11-20 09:27:49,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:49,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948537315] [2022-11-20 09:27:49,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:49,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:49,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:49,604 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 09:27:49,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:49,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948537315] [2022-11-20 09:27:49,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948537315] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:49,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:49,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:49,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307305489] [2022-11-20 09:27:49,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:49,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:49,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:49,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:49,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:49,611 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 421 [2022-11-20 09:27:49,613 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 369 places, 372 transitions, 760 flow. Second operand has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,613 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:49,613 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 421 [2022-11-20 09:27:49,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:27:49,839 INFO L130 PetriNetUnfolder]: 77/541 cut-off events. [2022-11-20 09:27:49,840 INFO L131 PetriNetUnfolder]: For 66/72 co-relation queries the response was YES. [2022-11-20 09:27:49,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 706 conditions, 541 events. 77/541 cut-off events. For 66/72 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1998 event pairs, 60 based on Foata normal form. 0/418 useless extension candidates. Maximal degree in co-relation 645. Up to 153 conditions per place. [2022-11-20 09:27:49,849 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 32 selfloop transitions, 2 changer transitions 0/371 dead transitions. [2022-11-20 09:27:49,849 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 370 places, 371 transitions, 826 flow [2022-11-20 09:27:49,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:27:49,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:27:49,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2022-11-20 09:27:49,852 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9208234362628662 [2022-11-20 09:27:49,853 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2022-11-20 09:27:49,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2022-11-20 09:27:49,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:27:49,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2022-11-20 09:27:49,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,862 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,862 INFO L175 Difference]: Start difference. First operand has 369 places, 372 transitions, 760 flow. Second operand 3 states and 1163 transitions. [2022-11-20 09:27:49,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 370 places, 371 transitions, 826 flow [2022-11-20 09:27:49,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 368 places, 371 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:27:49,870 INFO L231 Difference]: Finished difference. Result has 368 places, 371 transitions, 758 flow [2022-11-20 09:27:49,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=754, PETRI_DIFFERENCE_MINUEND_PLACES=366, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=758, PETRI_PLACES=368, PETRI_TRANSITIONS=371} [2022-11-20 09:27:49,871 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -17 predicate places. [2022-11-20 09:27:49,871 INFO L495 AbstractCegarLoop]: Abstraction has has 368 places, 371 transitions, 758 flow [2022-11-20 09:27:49,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,872 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:27:49,873 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] [2022-11-20 09:27:49,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:27:49,873 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:27:49,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:49,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1282486104, now seen corresponding path program 1 times [2022-11-20 09:27:49,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:49,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602315328] [2022-11-20 09:27:49,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:49,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:49,920 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 09:27:49,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:49,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602315328] [2022-11-20 09:27:49,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602315328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:49,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:49,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:49,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403181574] [2022-11-20 09:27:49,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:49,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:27:49,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:49,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:27:49,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:27:49,925 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 421 [2022-11-20 09:27:49,926 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 368 places, 371 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:49,927 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:27:49,927 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 421 [2022-11-20 09:27:49,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:06,907 INFO L130 PetriNetUnfolder]: 26737/76380 cut-off events. [2022-11-20 09:28:06,907 INFO L131 PetriNetUnfolder]: For 1365/1736 co-relation queries the response was YES. [2022-11-20 09:28:07,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108475 conditions, 76380 events. 26737/76380 cut-off events. For 1365/1736 co-relation queries the response was YES. Maximal size of possible extension queue 3869. Compared 1070407 event pairs, 23895 based on Foata normal form. 0/55590 useless extension candidates. Maximal degree in co-relation 108408. Up to 30724 conditions per place. [2022-11-20 09:28:09,097 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 33 selfloop transitions, 2 changer transitions 0/370 dead transitions. [2022-11-20 09:28:09,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 370 transitions, 826 flow [2022-11-20 09:28:09,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:09,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:09,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1164 transitions. [2022-11-20 09:28:09,102 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9216152019002375 [2022-11-20 09:28:09,102 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1164 transitions. [2022-11-20 09:28:09,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1164 transitions. [2022-11-20 09:28:09,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:09,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1164 transitions. [2022-11-20 09:28:09,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,109 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,110 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,110 INFO L175 Difference]: Start difference. First operand has 368 places, 371 transitions, 758 flow. Second operand 3 states and 1164 transitions. [2022-11-20 09:28:09,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 370 transitions, 826 flow [2022-11-20 09:28:09,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 367 places, 370 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:09,118 INFO L231 Difference]: Finished difference. Result has 367 places, 370 transitions, 756 flow [2022-11-20 09:28:09,118 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=752, PETRI_DIFFERENCE_MINUEND_PLACES=365, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=370, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=368, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=756, PETRI_PLACES=367, PETRI_TRANSITIONS=370} [2022-11-20 09:28:09,119 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -18 predicate places. [2022-11-20 09:28:09,119 INFO L495 AbstractCegarLoop]: Abstraction has has 367 places, 370 transitions, 756 flow [2022-11-20 09:28:09,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,120 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:09,120 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:09,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:28:09,121 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:09,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:09,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1166204559, now seen corresponding path program 1 times [2022-11-20 09:28:09,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:09,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003619748] [2022-11-20 09:28:09,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:09,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:09,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:09,190 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 09:28:09,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:09,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003619748] [2022-11-20 09:28:09,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003619748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:09,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:09,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:09,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225500411] [2022-11-20 09:28:09,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:09,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:09,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:09,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:09,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:09,195 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 421 [2022-11-20 09:28:09,196 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 370 transitions, 756 flow. Second operand has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,196 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:09,197 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 421 [2022-11-20 09:28:09,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:09,384 INFO L130 PetriNetUnfolder]: 62/510 cut-off events. [2022-11-20 09:28:09,385 INFO L131 PetriNetUnfolder]: For 6/11 co-relation queries the response was YES. [2022-11-20 09:28:09,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 510 events. 62/510 cut-off events. For 6/11 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1818 event pairs, 30 based on Foata normal form. 0/429 useless extension candidates. Maximal degree in co-relation 617. Up to 90 conditions per place. [2022-11-20 09:28:09,395 INFO L137 encePairwiseOnDemand]: 412/421 looper letters, 32 selfloop transitions, 3 changer transitions 0/370 dead transitions. [2022-11-20 09:28:09,395 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 370 transitions, 831 flow [2022-11-20 09:28:09,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:09,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:09,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1169 transitions. [2022-11-20 09:28:09,398 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9255740300870943 [2022-11-20 09:28:09,399 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1169 transitions. [2022-11-20 09:28:09,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1169 transitions. [2022-11-20 09:28:09,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:09,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1169 transitions. [2022-11-20 09:28:09,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,408 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,409 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,409 INFO L175 Difference]: Start difference. First operand has 367 places, 370 transitions, 756 flow. Second operand 3 states and 1169 transitions. [2022-11-20 09:28:09,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 370 transitions, 831 flow [2022-11-20 09:28:09,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 370 transitions, 827 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:09,417 INFO L231 Difference]: Finished difference. Result has 362 places, 365 transitions, 753 flow [2022-11-20 09:28:09,418 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=359, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=364, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=361, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=753, PETRI_PLACES=362, PETRI_TRANSITIONS=365} [2022-11-20 09:28:09,421 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -23 predicate places. [2022-11-20 09:28:09,421 INFO L495 AbstractCegarLoop]: Abstraction has has 362 places, 365 transitions, 753 flow [2022-11-20 09:28:09,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,422 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:09,423 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:09,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:28:09,423 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:09,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:09,425 INFO L85 PathProgramCache]: Analyzing trace with hash 263911499, now seen corresponding path program 1 times [2022-11-20 09:28:09,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:09,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89682972] [2022-11-20 09:28:09,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:09,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:09,500 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 09:28:09,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:09,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89682972] [2022-11-20 09:28:09,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89682972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:09,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:09,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:09,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761510475] [2022-11-20 09:28:09,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:09,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:09,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:09,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:09,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:09,505 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 421 [2022-11-20 09:28:09,506 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 365 transitions, 753 flow. Second operand has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,507 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:09,507 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 421 [2022-11-20 09:28:09,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:09,644 INFO L130 PetriNetUnfolder]: 62/506 cut-off events. [2022-11-20 09:28:09,644 INFO L131 PetriNetUnfolder]: For 16/20 co-relation queries the response was YES. [2022-11-20 09:28:09,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 680 conditions, 506 events. 62/506 cut-off events. For 16/20 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1826 event pairs, 30 based on Foata normal form. 0/427 useless extension candidates. Maximal degree in co-relation 597. Up to 88 conditions per place. [2022-11-20 09:28:09,654 INFO L137 encePairwiseOnDemand]: 413/421 looper letters, 30 selfloop transitions, 3 changer transitions 0/366 dead transitions. [2022-11-20 09:28:09,654 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 359 places, 366 transitions, 826 flow [2022-11-20 09:28:09,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:09,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1175 transitions. [2022-11-20 09:28:09,658 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9303246239113222 [2022-11-20 09:28:09,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1175 transitions. [2022-11-20 09:28:09,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1175 transitions. [2022-11-20 09:28:09,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:09,660 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1175 transitions. [2022-11-20 09:28:09,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,666 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,667 INFO L175 Difference]: Start difference. First operand has 362 places, 365 transitions, 753 flow. Second operand 3 states and 1175 transitions. [2022-11-20 09:28:09,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 359 places, 366 transitions, 826 flow [2022-11-20 09:28:09,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 358 places, 366 transitions, 823 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:28:09,674 INFO L231 Difference]: Finished difference. Result has 359 places, 361 transitions, 753 flow [2022-11-20 09:28:09,675 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=356, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=753, PETRI_PLACES=359, PETRI_TRANSITIONS=361} [2022-11-20 09:28:09,676 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -26 predicate places. [2022-11-20 09:28:09,676 INFO L495 AbstractCegarLoop]: Abstraction has has 359 places, 361 transitions, 753 flow [2022-11-20 09:28:09,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:09,677 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 09:28:09,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:28:09,678 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:09,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:09,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1847716557, now seen corresponding path program 1 times [2022-11-20 09:28:09,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:09,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924097550] [2022-11-20 09:28:09,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:09,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:09,767 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 09:28:09,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:09,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924097550] [2022-11-20 09:28:09,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924097550] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:09,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:09,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:09,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683302105] [2022-11-20 09:28:09,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:09,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:09,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:09,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:09,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:09,770 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 421 [2022-11-20 09:28:09,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 361 transitions, 753 flow. Second operand has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:09,772 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:09,772 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 421 [2022-11-20 09:28:09,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:09,959 INFO L130 PetriNetUnfolder]: 75/700 cut-off events. [2022-11-20 09:28:09,959 INFO L131 PetriNetUnfolder]: For 28/32 co-relation queries the response was YES. [2022-11-20 09:28:09,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 894 conditions, 700 events. 75/700 cut-off events. For 28/32 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3138 event pairs, 15 based on Foata normal form. 1/598 useless extension candidates. Maximal degree in co-relation 799. Up to 91 conditions per place. [2022-11-20 09:28:09,973 INFO L137 encePairwiseOnDemand]: 411/421 looper letters, 35 selfloop transitions, 4 changer transitions 0/365 dead transitions. [2022-11-20 09:28:09,973 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 365 transitions, 847 flow [2022-11-20 09:28:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:09,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:09,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1173 transitions. [2022-11-20 09:28:09,977 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9287410926365796 [2022-11-20 09:28:09,977 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1173 transitions. [2022-11-20 09:28:09,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1173 transitions. [2022-11-20 09:28:09,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:09,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1173 transitions. [2022-11-20 09:28:09,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 391.0) internal successors, (1173), 3 states have internal predecessors, (1173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,002 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,002 INFO L175 Difference]: Start difference. First operand has 359 places, 361 transitions, 753 flow. Second operand 3 states and 1173 transitions. [2022-11-20 09:28:10,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 365 transitions, 847 flow [2022-11-20 09:28:10,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 365 transitions, 844 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:28:10,010 INFO L231 Difference]: Finished difference. Result has 355 places, 357 transitions, 758 flow [2022-11-20 09:28:10,011 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=758, PETRI_PLACES=355, PETRI_TRANSITIONS=357} [2022-11-20 09:28:10,013 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -30 predicate places. [2022-11-20 09:28:10,013 INFO L495 AbstractCegarLoop]: Abstraction has has 355 places, 357 transitions, 758 flow [2022-11-20 09:28:10,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,014 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:10,014 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] [2022-11-20 09:28:10,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:28:10,016 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:10,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:10,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1834088879, now seen corresponding path program 1 times [2022-11-20 09:28:10,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:10,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440287400] [2022-11-20 09:28:10,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:10,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:10,063 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 09:28:10,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:10,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440287400] [2022-11-20 09:28:10,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440287400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:10,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:10,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:10,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554343286] [2022-11-20 09:28:10,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:10,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:10,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:10,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:10,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:10,067 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 421 [2022-11-20 09:28:10,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 357 transitions, 758 flow. Second operand has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,069 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:10,069 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 421 [2022-11-20 09:28:10,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:10,325 INFO L130 PetriNetUnfolder]: 122/1009 cut-off events. [2022-11-20 09:28:10,326 INFO L131 PetriNetUnfolder]: For 58/62 co-relation queries the response was YES. [2022-11-20 09:28:10,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 1009 events. 122/1009 cut-off events. For 58/62 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5727 event pairs, 27 based on Foata normal form. 1/862 useless extension candidates. Maximal degree in co-relation 938. Up to 142 conditions per place. [2022-11-20 09:28:10,346 INFO L137 encePairwiseOnDemand]: 413/421 looper letters, 34 selfloop transitions, 3 changer transitions 0/362 dead transitions. [2022-11-20 09:28:10,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 362 transitions, 851 flow [2022-11-20 09:28:10,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:10,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:10,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1179 transitions. [2022-11-20 09:28:10,350 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9334916864608076 [2022-11-20 09:28:10,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1179 transitions. [2022-11-20 09:28:10,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1179 transitions. [2022-11-20 09:28:10,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:10,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1179 transitions. [2022-11-20 09:28:10,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,358 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,359 INFO L175 Difference]: Start difference. First operand has 355 places, 357 transitions, 758 flow. Second operand 3 states and 1179 transitions. [2022-11-20 09:28:10,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 362 transitions, 851 flow [2022-11-20 09:28:10,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 362 transitions, 847 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:28:10,366 INFO L231 Difference]: Finished difference. Result has 352 places, 353 transitions, 757 flow [2022-11-20 09:28:10,367 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=744, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=349, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=757, PETRI_PLACES=352, PETRI_TRANSITIONS=353} [2022-11-20 09:28:10,367 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -33 predicate places. [2022-11-20 09:28:10,367 INFO L495 AbstractCegarLoop]: Abstraction has has 352 places, 353 transitions, 757 flow [2022-11-20 09:28:10,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,368 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:10,368 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] [2022-11-20 09:28:10,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 09:28:10,369 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:10,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:10,370 INFO L85 PathProgramCache]: Analyzing trace with hash -586009829, now seen corresponding path program 1 times [2022-11-20 09:28:10,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:10,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373303578] [2022-11-20 09:28:10,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:10,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:10,414 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 09:28:10,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:10,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373303578] [2022-11-20 09:28:10,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373303578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:10,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:10,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:10,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091671452] [2022-11-20 09:28:10,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:10,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:10,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:10,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:10,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:10,418 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 421 [2022-11-20 09:28:10,419 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 353 transitions, 757 flow. Second operand has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:10,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 421 [2022-11-20 09:28:10,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:10,879 INFO L130 PetriNetUnfolder]: 177/1607 cut-off events. [2022-11-20 09:28:10,880 INFO L131 PetriNetUnfolder]: For 105/109 co-relation queries the response was YES. [2022-11-20 09:28:10,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1607 events. 177/1607 cut-off events. For 105/109 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 11176 event pairs, 36 based on Foata normal form. 1/1392 useless extension candidates. Maximal degree in co-relation 1419. Up to 223 conditions per place. [2022-11-20 09:28:10,912 INFO L137 encePairwiseOnDemand]: 411/421 looper letters, 37 selfloop transitions, 4 changer transitions 0/359 dead transitions. [2022-11-20 09:28:10,912 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 359 transitions, 861 flow [2022-11-20 09:28:10,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:10,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:10,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1175 transitions. [2022-11-20 09:28:10,916 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9303246239113222 [2022-11-20 09:28:10,916 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1175 transitions. [2022-11-20 09:28:10,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1175 transitions. [2022-11-20 09:28:10,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:10,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1175 transitions. [2022-11-20 09:28:10,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,924 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,924 INFO L175 Difference]: Start difference. First operand has 352 places, 353 transitions, 757 flow. Second operand 3 states and 1175 transitions. [2022-11-20 09:28:10,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 359 transitions, 861 flow [2022-11-20 09:28:10,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 359 transitions, 858 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:28:10,931 INFO L231 Difference]: Finished difference. Result has 348 places, 349 transitions, 762 flow [2022-11-20 09:28:10,932 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=742, PETRI_DIFFERENCE_MINUEND_PLACES=345, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=762, PETRI_PLACES=348, PETRI_TRANSITIONS=349} [2022-11-20 09:28:10,933 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -37 predicate places. [2022-11-20 09:28:10,933 INFO L495 AbstractCegarLoop]: Abstraction has has 348 places, 349 transitions, 762 flow [2022-11-20 09:28:10,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.3333333333333) internal successors, (1132), 3 states have internal predecessors, (1132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,934 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:10,934 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:10,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 09:28:10,934 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:10,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:10,935 INFO L85 PathProgramCache]: Analyzing trace with hash -514709597, now seen corresponding path program 1 times [2022-11-20 09:28:10,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:10,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169055269] [2022-11-20 09:28:10,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:10,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:10,977 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 09:28:10,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:10,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169055269] [2022-11-20 09:28:10,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169055269] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:10,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:10,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:10,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895358894] [2022-11-20 09:28:10,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:10,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:10,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:10,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:10,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:10,981 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 421 [2022-11-20 09:28:10,983 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 349 transitions, 762 flow. Second operand has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:10,983 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:10,983 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 421 [2022-11-20 09:28:10,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:11,604 INFO L130 PetriNetUnfolder]: 247/2750 cut-off events. [2022-11-20 09:28:11,604 INFO L131 PetriNetUnfolder]: For 207/211 co-relation queries the response was YES. [2022-11-20 09:28:11,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3445 conditions, 2750 events. 247/2750 cut-off events. For 207/211 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 22113 event pairs, 121 based on Foata normal form. 1/2388 useless extension candidates. Maximal degree in co-relation 1939. Up to 313 conditions per place. [2022-11-20 09:28:11,653 INFO L137 encePairwiseOnDemand]: 413/421 looper letters, 33 selfloop transitions, 3 changer transitions 19/356 dead transitions. [2022-11-20 09:28:11,653 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 356 transitions, 863 flow [2022-11-20 09:28:11,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:11,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:11,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1180 transitions. [2022-11-20 09:28:11,657 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.934283452098179 [2022-11-20 09:28:11,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1180 transitions. [2022-11-20 09:28:11,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1180 transitions. [2022-11-20 09:28:11,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:11,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1180 transitions. [2022-11-20 09:28:11,661 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 393.3333333333333) internal successors, (1180), 3 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,665 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,665 INFO L175 Difference]: Start difference. First operand has 348 places, 349 transitions, 762 flow. Second operand 3 states and 1180 transitions. [2022-11-20 09:28:11,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 356 transitions, 863 flow [2022-11-20 09:28:11,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 356 transitions, 859 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:28:11,673 INFO L231 Difference]: Finished difference. Result has 345 places, 326 transitions, 722 flow [2022-11-20 09:28:11,673 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=748, PETRI_DIFFERENCE_MINUEND_PLACES=342, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=345, PETRI_TRANSITIONS=326} [2022-11-20 09:28:11,674 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -40 predicate places. [2022-11-20 09:28:11,674 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 326 transitions, 722 flow [2022-11-20 09:28:11,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,675 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:11,675 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] [2022-11-20 09:28:11,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 09:28:11,676 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:11,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:11,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1620516924, now seen corresponding path program 1 times [2022-11-20 09:28:11,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:11,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130539598] [2022-11-20 09:28:11,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:11,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:11,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:11,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:11,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130539598] [2022-11-20 09:28:11,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130539598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:11,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:11,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:11,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378773903] [2022-11-20 09:28:11,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:11,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:11,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:11,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:11,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:11,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 379 out of 421 [2022-11-20 09:28:11,733 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 326 transitions, 722 flow. Second operand has 3 states, 3 states have (on average 380.6666666666667) internal successors, (1142), 3 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:11,733 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:11,733 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 379 of 421 [2022-11-20 09:28:11,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:22,782 INFO L130 PetriNetUnfolder]: 17226/63806 cut-off events. [2022-11-20 09:28:22,783 INFO L131 PetriNetUnfolder]: For 1780/2760 co-relation queries the response was YES. [2022-11-20 09:28:23,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89155 conditions, 63806 events. 17226/63806 cut-off events. For 1780/2760 co-relation queries the response was YES. Maximal size of possible extension queue 2568. Compared 936066 event pairs, 9985 based on Foata normal form. 0/54602 useless extension candidates. Maximal degree in co-relation 32386. Up to 19687 conditions per place. [2022-11-20 09:28:23,667 INFO L137 encePairwiseOnDemand]: 409/421 looper letters, 30 selfloop transitions, 6 changer transitions 0/331 dead transitions. [2022-11-20 09:28:23,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 331 transitions, 809 flow [2022-11-20 09:28:23,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:23,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:23,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1179 transitions. [2022-11-20 09:28:23,671 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9334916864608076 [2022-11-20 09:28:23,671 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1179 transitions. [2022-11-20 09:28:23,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1179 transitions. [2022-11-20 09:28:23,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:23,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1179 transitions. [2022-11-20 09:28:23,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 393.0) internal successors, (1179), 3 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:23,678 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:23,678 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:23,679 INFO L175 Difference]: Start difference. First operand has 345 places, 326 transitions, 722 flow. Second operand 3 states and 1179 transitions. [2022-11-20 09:28:23,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 331 transitions, 809 flow [2022-11-20 09:28:23,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 331 transitions, 806 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:28:23,806 INFO L231 Difference]: Finished difference. Result has 323 places, 326 transitions, 749 flow [2022-11-20 09:28:23,807 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=749, PETRI_PLACES=323, PETRI_TRANSITIONS=326} [2022-11-20 09:28:23,808 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -62 predicate places. [2022-11-20 09:28:23,808 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 326 transitions, 749 flow [2022-11-20 09:28:23,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 380.6666666666667) internal successors, (1142), 3 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:23,809 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:23,809 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 09:28:23,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 09:28:23,809 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:23,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:23,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1806457625, now seen corresponding path program 1 times [2022-11-20 09:28:23,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:23,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765747957] [2022-11-20 09:28:23,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:23,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:23,860 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 09:28:23,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:23,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765747957] [2022-11-20 09:28:23,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765747957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:23,861 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:23,861 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:23,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469952198] [2022-11-20 09:28:23,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:23,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:23,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:23,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:23,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:23,864 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 421 [2022-11-20 09:28:23,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 326 transitions, 749 flow. Second operand has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:23,866 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:23,866 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 421 [2022-11-20 09:28:23,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:25,750 INFO L130 PetriNetUnfolder]: 2117/10312 cut-off events. [2022-11-20 09:28:25,750 INFO L131 PetriNetUnfolder]: For 75/120 co-relation queries the response was YES. [2022-11-20 09:28:25,825 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14852 conditions, 10312 events. 2117/10312 cut-off events. For 75/120 co-relation queries the response was YES. Maximal size of possible extension queue 446. Compared 122937 event pairs, 726 based on Foata normal form. 0/8755 useless extension candidates. Maximal degree in co-relation 8559. Up to 1792 conditions per place. [2022-11-20 09:28:25,868 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 31 selfloop transitions, 2 changer transitions 0/330 dead transitions. [2022-11-20 09:28:25,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 330 transitions, 828 flow [2022-11-20 09:28:25,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:25,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:25,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1155 transitions. [2022-11-20 09:28:25,874 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9144893111638955 [2022-11-20 09:28:25,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1155 transitions. [2022-11-20 09:28:25,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1155 transitions. [2022-11-20 09:28:25,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:25,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1155 transitions. [2022-11-20 09:28:25,878 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:25,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:25,881 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:25,881 INFO L175 Difference]: Start difference. First operand has 323 places, 326 transitions, 749 flow. Second operand 3 states and 1155 transitions. [2022-11-20 09:28:25,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 330 transitions, 828 flow [2022-11-20 09:28:25,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 330 transitions, 828 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:28:25,891 INFO L231 Difference]: Finished difference. Result has 324 places, 325 transitions, 751 flow [2022-11-20 09:28:25,892 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=751, PETRI_PLACES=324, PETRI_TRANSITIONS=325} [2022-11-20 09:28:25,893 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -61 predicate places. [2022-11-20 09:28:25,894 INFO L495 AbstractCegarLoop]: Abstraction has has 324 places, 325 transitions, 751 flow [2022-11-20 09:28:25,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:25,894 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:25,894 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] [2022-11-20 09:28:25,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 09:28:25,895 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:25,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:25,895 INFO L85 PathProgramCache]: Analyzing trace with hash -162669550, now seen corresponding path program 1 times [2022-11-20 09:28:25,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:25,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994720556] [2022-11-20 09:28:25,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:25,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:25,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:25,953 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 09:28:25,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:25,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994720556] [2022-11-20 09:28:25,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994720556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:25,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:25,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:25,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233930562] [2022-11-20 09:28:25,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:25,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:25,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:25,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:25,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:25,960 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 421 [2022-11-20 09:28:25,961 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 324 places, 325 transitions, 751 flow. Second operand has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:25,961 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:25,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 421 [2022-11-20 09:28:25,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:28,117 INFO L130 PetriNetUnfolder]: 2633/11614 cut-off events. [2022-11-20 09:28:28,118 INFO L131 PetriNetUnfolder]: For 192/255 co-relation queries the response was YES. [2022-11-20 09:28:28,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17439 conditions, 11614 events. 2633/11614 cut-off events. For 192/255 co-relation queries the response was YES. Maximal size of possible extension queue 525. Compared 138627 event pairs, 1092 based on Foata normal form. 0/10089 useless extension candidates. Maximal degree in co-relation 16916. Up to 1950 conditions per place. [2022-11-20 09:28:28,335 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 29 selfloop transitions, 2 changer transitions 0/329 dead transitions. [2022-11-20 09:28:28,335 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 329 transitions, 826 flow [2022-11-20 09:28:28,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:28,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:28,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1162 transitions. [2022-11-20 09:28:28,339 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9200316706254948 [2022-11-20 09:28:28,339 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1162 transitions. [2022-11-20 09:28:28,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1162 transitions. [2022-11-20 09:28:28,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:28,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1162 transitions. [2022-11-20 09:28:28,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,347 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,347 INFO L175 Difference]: Start difference. First operand has 324 places, 325 transitions, 751 flow. Second operand 3 states and 1162 transitions. [2022-11-20 09:28:28,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 329 transitions, 826 flow [2022-11-20 09:28:28,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 329 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:28,359 INFO L231 Difference]: Finished difference. Result has 323 places, 324 transitions, 749 flow [2022-11-20 09:28:28,359 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=745, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=749, PETRI_PLACES=323, PETRI_TRANSITIONS=324} [2022-11-20 09:28:28,360 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -62 predicate places. [2022-11-20 09:28:28,360 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 324 transitions, 749 flow [2022-11-20 09:28:28,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,361 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:28,361 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] [2022-11-20 09:28:28,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 09:28:28,362 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:28,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:28,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1762162867, now seen corresponding path program 1 times [2022-11-20 09:28:28,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:28,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15755933] [2022-11-20 09:28:28,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:28,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:28,426 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 09:28:28,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:28,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15755933] [2022-11-20 09:28:28,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15755933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:28,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:28,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:28,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022798134] [2022-11-20 09:28:28,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:28,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:28,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:28,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:28,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:28,430 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 421 [2022-11-20 09:28:28,432 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 324 transitions, 749 flow. Second operand has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:28,432 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:28,432 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 421 [2022-11-20 09:28:28,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:30,457 INFO L130 PetriNetUnfolder]: 2469/10952 cut-off events. [2022-11-20 09:28:30,457 INFO L131 PetriNetUnfolder]: For 357/477 co-relation queries the response was YES. [2022-11-20 09:28:30,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16697 conditions, 10952 events. 2469/10952 cut-off events. For 357/477 co-relation queries the response was YES. Maximal size of possible extension queue 509. Compared 126347 event pairs, 1009 based on Foata normal form. 0/9587 useless extension candidates. Maximal degree in co-relation 15669. Up to 1837 conditions per place. [2022-11-20 09:28:30,582 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 32 selfloop transitions, 2 changer transitions 0/328 dead transitions. [2022-11-20 09:28:30,582 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 328 transitions, 830 flow [2022-11-20 09:28:30,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:30,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1155 transitions. [2022-11-20 09:28:30,585 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9144893111638955 [2022-11-20 09:28:30,586 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1155 transitions. [2022-11-20 09:28:30,586 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1155 transitions. [2022-11-20 09:28:30,586 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:30,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1155 transitions. [2022-11-20 09:28:30,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:30,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:30,591 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:30,592 INFO L175 Difference]: Start difference. First operand has 323 places, 324 transitions, 749 flow. Second operand 3 states and 1155 transitions. [2022-11-20 09:28:30,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 328 transitions, 830 flow [2022-11-20 09:28:30,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 328 transitions, 826 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:30,602 INFO L231 Difference]: Finished difference. Result has 322 places, 323 transitions, 747 flow [2022-11-20 09:28:30,603 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=743, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=747, PETRI_PLACES=322, PETRI_TRANSITIONS=323} [2022-11-20 09:28:30,603 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -63 predicate places. [2022-11-20 09:28:30,604 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 323 transitions, 747 flow [2022-11-20 09:28:30,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 378.6666666666667) internal successors, (1136), 3 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:30,604 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:30,604 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] [2022-11-20 09:28:30,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 09:28:30,605 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread4Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:30,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:30,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1105562050, now seen corresponding path program 1 times [2022-11-20 09:28:30,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:30,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871834573] [2022-11-20 09:28:30,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:30,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:30,670 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 09:28:30,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:30,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871834573] [2022-11-20 09:28:30,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871834573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:30,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:30,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:30,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573995708] [2022-11-20 09:28:30,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:30,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:30,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:30,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:30,674 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 421 [2022-11-20 09:28:30,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 323 transitions, 747 flow. Second operand has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:30,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:30,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 421 [2022-11-20 09:28:30,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:32,604 INFO L130 PetriNetUnfolder]: 2230/10347 cut-off events. [2022-11-20 09:28:32,604 INFO L131 PetriNetUnfolder]: For 476/564 co-relation queries the response was YES. [2022-11-20 09:28:32,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15249 conditions, 10347 events. 2230/10347 cut-off events. For 476/564 co-relation queries the response was YES. Maximal size of possible extension queue 469. Compared 117666 event pairs, 851 based on Foata normal form. 0/9029 useless extension candidates. Maximal degree in co-relation 14452. Up to 1765 conditions per place. [2022-11-20 09:28:32,765 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 29 selfloop transitions, 2 changer transitions 0/327 dead transitions. [2022-11-20 09:28:32,765 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 327 transitions, 822 flow [2022-11-20 09:28:32,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:32,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1162 transitions. [2022-11-20 09:28:32,769 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9200316706254948 [2022-11-20 09:28:32,769 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1162 transitions. [2022-11-20 09:28:32,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1162 transitions. [2022-11-20 09:28:32,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:32,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1162 transitions. [2022-11-20 09:28:32,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:32,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:32,775 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:32,775 INFO L175 Difference]: Start difference. First operand has 322 places, 323 transitions, 747 flow. Second operand 3 states and 1162 transitions. [2022-11-20 09:28:32,776 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 327 transitions, 822 flow [2022-11-20 09:28:32,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 327 transitions, 818 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:32,788 INFO L231 Difference]: Finished difference. Result has 321 places, 322 transitions, 745 flow [2022-11-20 09:28:32,789 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=745, PETRI_PLACES=321, PETRI_TRANSITIONS=322} [2022-11-20 09:28:32,789 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -64 predicate places. [2022-11-20 09:28:32,789 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 322 transitions, 745 flow [2022-11-20 09:28:32,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:32,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:32,790 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] [2022-11-20 09:28:32,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 09:28:32,791 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread5Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:32,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:32,791 INFO L85 PathProgramCache]: Analyzing trace with hash -904454672, now seen corresponding path program 1 times [2022-11-20 09:28:32,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:32,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012843234] [2022-11-20 09:28:32,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:32,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:32,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:32,859 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 09:28:32,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:32,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012843234] [2022-11-20 09:28:32,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012843234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:32,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:32,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:32,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470317802] [2022-11-20 09:28:32,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:32,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:32,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:32,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:32,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:32,864 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 421 [2022-11-20 09:28:32,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 322 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:32,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:32,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 421 [2022-11-20 09:28:32,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:34,987 INFO L130 PetriNetUnfolder]: 2065/9592 cut-off events. [2022-11-20 09:28:34,987 INFO L131 PetriNetUnfolder]: For 544/616 co-relation queries the response was YES. [2022-11-20 09:28:35,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14072 conditions, 9592 events. 2065/9592 cut-off events. For 544/616 co-relation queries the response was YES. Maximal size of possible extension queue 394. Compared 106001 event pairs, 785 based on Foata normal form. 0/8400 useless extension candidates. Maximal degree in co-relation 13360. Up to 1649 conditions per place. [2022-11-20 09:28:35,265 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 32 selfloop transitions, 2 changer transitions 0/326 dead transitions. [2022-11-20 09:28:35,265 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 326 transitions, 826 flow [2022-11-20 09:28:35,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:35,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:35,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1155 transitions. [2022-11-20 09:28:35,270 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9144893111638955 [2022-11-20 09:28:35,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1155 transitions. [2022-11-20 09:28:35,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1155 transitions. [2022-11-20 09:28:35,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:35,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1155 transitions. [2022-11-20 09:28:35,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:35,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:35,278 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:35,278 INFO L175 Difference]: Start difference. First operand has 321 places, 322 transitions, 745 flow. Second operand 3 states and 1155 transitions. [2022-11-20 09:28:35,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 326 transitions, 826 flow [2022-11-20 09:28:35,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 326 transitions, 822 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:35,290 INFO L231 Difference]: Finished difference. Result has 320 places, 321 transitions, 743 flow [2022-11-20 09:28:35,291 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=743, PETRI_PLACES=320, PETRI_TRANSITIONS=321} [2022-11-20 09:28:35,292 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -65 predicate places. [2022-11-20 09:28:35,292 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 321 transitions, 743 flow [2022-11-20 09:28:35,292 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:35,293 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:35,293 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:35,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 09:28:35,293 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:35,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:35,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1901234593, now seen corresponding path program 1 times [2022-11-20 09:28:35,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:35,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269054879] [2022-11-20 09:28:35,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:35,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:36,034 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 09:28:36,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:36,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269054879] [2022-11-20 09:28:36,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269054879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:36,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:36,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:28:36,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815572603] [2022-11-20 09:28:36,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:36,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:36,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:36,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:36,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:36,040 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 421 [2022-11-20 09:28:36,042 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 321 transitions, 743 flow. Second operand has 6 states, 6 states have (on average 360.5) internal successors, (2163), 6 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:36,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:36,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 421 [2022-11-20 09:28:36,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:37,285 INFO L130 PetriNetUnfolder]: 1022/6292 cut-off events. [2022-11-20 09:28:37,285 INFO L131 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2022-11-20 09:28:37,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8724 conditions, 6292 events. 1022/6292 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 64306 event pairs, 188 based on Foata normal form. 0/5577 useless extension candidates. Maximal degree in co-relation 8216. Up to 1156 conditions per place. [2022-11-20 09:28:37,443 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 46 selfloop transitions, 4 changer transitions 0/320 dead transitions. [2022-11-20 09:28:37,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 320 transitions, 841 flow [2022-11-20 09:28:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:28:37,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:28:37,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2199 transitions. [2022-11-20 09:28:37,449 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8705463182897862 [2022-11-20 09:28:37,450 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2199 transitions. [2022-11-20 09:28:37,450 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2199 transitions. [2022-11-20 09:28:37,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:37,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2199 transitions. [2022-11-20 09:28:37,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 366.5) internal successors, (2199), 6 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:37,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:37,462 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:37,462 INFO L175 Difference]: Start difference. First operand has 320 places, 321 transitions, 743 flow. Second operand 6 states and 2199 transitions. [2022-11-20 09:28:37,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 320 transitions, 841 flow [2022-11-20 09:28:37,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 320 transitions, 837 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:37,472 INFO L231 Difference]: Finished difference. Result has 322 places, 320 transitions, 745 flow [2022-11-20 09:28:37,473 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=745, PETRI_PLACES=322, PETRI_TRANSITIONS=320} [2022-11-20 09:28:37,473 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -63 predicate places. [2022-11-20 09:28:37,473 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 320 transitions, 745 flow [2022-11-20 09:28:37,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 360.5) internal successors, (2163), 6 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:37,475 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:37,475 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] [2022-11-20 09:28:37,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 09:28:37,475 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread6Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:37,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:37,476 INFO L85 PathProgramCache]: Analyzing trace with hash -584990348, now seen corresponding path program 1 times [2022-11-20 09:28:37,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:37,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445832570] [2022-11-20 09:28:37,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:37,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:37,571 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 09:28:37,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:37,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445832570] [2022-11-20 09:28:37,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445832570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:37,572 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:37,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:28:37,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472848793] [2022-11-20 09:28:37,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:37,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:28:37,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:37,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:28:37,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:28:37,575 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 421 [2022-11-20 09:28:37,577 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 320 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 382.6666666666667) internal successors, (1148), 3 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:37,577 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:37,577 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 421 [2022-11-20 09:28:37,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:39,195 INFO L130 PetriNetUnfolder]: 1594/8072 cut-off events. [2022-11-20 09:28:39,195 INFO L131 PetriNetUnfolder]: For 451/505 co-relation queries the response was YES. [2022-11-20 09:28:39,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11320 conditions, 8072 events. 1594/8072 cut-off events. For 451/505 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 84875 event pairs, 546 based on Foata normal form. 0/7084 useless extension candidates. Maximal degree in co-relation 7650. Up to 1383 conditions per place. [2022-11-20 09:28:39,306 INFO L137 encePairwiseOnDemand]: 418/421 looper letters, 29 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2022-11-20 09:28:39,306 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 324 transitions, 820 flow [2022-11-20 09:28:39,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:28:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:28:39,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1162 transitions. [2022-11-20 09:28:39,309 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9200316706254948 [2022-11-20 09:28:39,309 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1162 transitions. [2022-11-20 09:28:39,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1162 transitions. [2022-11-20 09:28:39,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:39,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1162 transitions. [2022-11-20 09:28:39,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.3333333333333) internal successors, (1162), 3 states have internal predecessors, (1162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:39,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:39,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 421.0) internal successors, (1684), 4 states have internal predecessors, (1684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:39,315 INFO L175 Difference]: Start difference. First operand has 322 places, 320 transitions, 745 flow. Second operand 3 states and 1162 transitions. [2022-11-20 09:28:39,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 324 transitions, 820 flow [2022-11-20 09:28:39,320 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 324 transitions, 813 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:28:39,324 INFO L231 Difference]: Finished difference. Result has 319 places, 319 transitions, 740 flow [2022-11-20 09:28:39,324 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=740, PETRI_PLACES=319, PETRI_TRANSITIONS=319} [2022-11-20 09:28:39,325 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -66 predicate places. [2022-11-20 09:28:39,325 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 319 transitions, 740 flow [2022-11-20 09:28:39,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 382.6666666666667) internal successors, (1148), 3 states have internal predecessors, (1148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:39,326 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:39,326 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] [2022-11-20 09:28:39,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-20 09:28:39,326 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:39,327 INFO L85 PathProgramCache]: Analyzing trace with hash 447129119, now seen corresponding path program 1 times [2022-11-20 09:28:39,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:39,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302872753] [2022-11-20 09:28:39,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:39,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:39,871 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 09:28:39,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:39,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302872753] [2022-11-20 09:28:39,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302872753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:39,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:39,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:28:39,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756169363] [2022-11-20 09:28:39,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:39,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:39,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:39,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:39,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:39,877 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 421 [2022-11-20 09:28:39,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 319 transitions, 740 flow. Second operand has 6 states, 6 states have (on average 361.5) internal successors, (2169), 6 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:39,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:39,881 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 421 [2022-11-20 09:28:39,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:41,018 INFO L130 PetriNetUnfolder]: 1022/6258 cut-off events. [2022-11-20 09:28:41,018 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-11-20 09:28:41,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8642 conditions, 6258 events. 1022/6258 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 63845 event pairs, 188 based on Foata normal form. 0/5577 useless extension candidates. Maximal degree in co-relation 8215. Up to 1156 conditions per place. [2022-11-20 09:28:41,138 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 45 selfloop transitions, 4 changer transitions 0/318 dead transitions. [2022-11-20 09:28:41,138 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 318 transitions, 836 flow [2022-11-20 09:28:41,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:28:41,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:28:41,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2198 transitions. [2022-11-20 09:28:41,144 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8701504354711006 [2022-11-20 09:28:41,144 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2198 transitions. [2022-11-20 09:28:41,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2198 transitions. [2022-11-20 09:28:41,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:41,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2198 transitions. [2022-11-20 09:28:41,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 366.3333333333333) internal successors, (2198), 6 states have internal predecessors, (2198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:41,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:41,151 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:41,152 INFO L175 Difference]: Start difference. First operand has 319 places, 319 transitions, 740 flow. Second operand 6 states and 2198 transitions. [2022-11-20 09:28:41,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 318 transitions, 836 flow [2022-11-20 09:28:41,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 318 transitions, 832 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:28:41,161 INFO L231 Difference]: Finished difference. Result has 321 places, 318 transitions, 742 flow [2022-11-20 09:28:41,161 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=742, PETRI_PLACES=321, PETRI_TRANSITIONS=318} [2022-11-20 09:28:41,162 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -64 predicate places. [2022-11-20 09:28:41,162 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 318 transitions, 742 flow [2022-11-20 09:28:41,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 361.5) internal successors, (2169), 6 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:41,163 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:41,164 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 09:28:41,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 09:28:41,164 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:41,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:41,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1131229552, now seen corresponding path program 1 times [2022-11-20 09:28:41,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:41,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814492060] [2022-11-20 09:28:41,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:41,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:41,709 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 09:28:41,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:41,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814492060] [2022-11-20 09:28:41,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814492060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:41,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:41,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:28:41,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611379682] [2022-11-20 09:28:41,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:41,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:41,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:41,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:41,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:41,716 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 421 [2022-11-20 09:28:41,719 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 318 transitions, 742 flow. Second operand has 6 states, 6 states have (on average 362.5) internal successors, (2175), 6 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:41,719 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:41,719 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 421 [2022-11-20 09:28:41,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:43,022 INFO L130 PetriNetUnfolder]: 1022/6225 cut-off events. [2022-11-20 09:28:43,022 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-20 09:28:43,100 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8586 conditions, 6225 events. 1022/6225 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 63410 event pairs, 188 based on Foata normal form. 0/5577 useless extension candidates. Maximal degree in co-relation 7523. Up to 1156 conditions per place. [2022-11-20 09:28:43,124 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 44 selfloop transitions, 4 changer transitions 0/317 dead transitions. [2022-11-20 09:28:43,125 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 317 transitions, 836 flow [2022-11-20 09:28:43,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:28:43,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:28:43,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2197 transitions. [2022-11-20 09:28:43,131 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8697545526524149 [2022-11-20 09:28:43,131 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2197 transitions. [2022-11-20 09:28:43,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2197 transitions. [2022-11-20 09:28:43,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:43,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2197 transitions. [2022-11-20 09:28:43,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 366.1666666666667) internal successors, (2197), 6 states have internal predecessors, (2197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:43,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:43,141 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:43,141 INFO L175 Difference]: Start difference. First operand has 321 places, 318 transitions, 742 flow. Second operand 6 states and 2197 transitions. [2022-11-20 09:28:43,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 317 transitions, 836 flow [2022-11-20 09:28:43,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 317 transitions, 829 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:28:43,149 INFO L231 Difference]: Finished difference. Result has 321 places, 317 transitions, 741 flow [2022-11-20 09:28:43,150 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=313, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=741, PETRI_PLACES=321, PETRI_TRANSITIONS=317} [2022-11-20 09:28:43,150 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -64 predicate places. [2022-11-20 09:28:43,151 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 317 transitions, 741 flow [2022-11-20 09:28:43,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 362.5) internal successors, (2175), 6 states have internal predecessors, (2175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:43,152 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:43,152 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:43,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 09:28:43,153 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:43,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:43,153 INFO L85 PathProgramCache]: Analyzing trace with hash -692459883, now seen corresponding path program 1 times [2022-11-20 09:28:43,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:43,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268971200] [2022-11-20 09:28:43,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:43,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:43,766 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 09:28:43,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:43,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268971200] [2022-11-20 09:28:43,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268971200] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:43,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:43,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:28:43,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806185155] [2022-11-20 09:28:43,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:43,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:43,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:43,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:43,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:43,770 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 421 [2022-11-20 09:28:43,772 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 317 transitions, 741 flow. Second operand has 6 states, 6 states have (on average 363.5) internal successors, (2181), 6 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:43,773 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:43,773 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 421 [2022-11-20 09:28:43,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:45,145 INFO L130 PetriNetUnfolder]: 1022/6208 cut-off events. [2022-11-20 09:28:45,145 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-11-20 09:28:45,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8641 conditions, 6208 events. 1022/6208 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 63326 event pairs, 188 based on Foata normal form. 0/5577 useless extension candidates. Maximal degree in co-relation 7754. Up to 1156 conditions per place. [2022-11-20 09:28:45,271 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 43 selfloop transitions, 4 changer transitions 0/316 dead transitions. [2022-11-20 09:28:45,272 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 316 transitions, 833 flow [2022-11-20 09:28:45,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:28:45,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:28:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2196 transitions. [2022-11-20 09:28:45,274 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8693586698337292 [2022-11-20 09:28:45,275 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2196 transitions. [2022-11-20 09:28:45,275 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2196 transitions. [2022-11-20 09:28:45,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:45,276 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2196 transitions. [2022-11-20 09:28:45,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 366.0) internal successors, (2196), 6 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:45,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:45,286 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:45,286 INFO L175 Difference]: Start difference. First operand has 321 places, 317 transitions, 741 flow. Second operand 6 states and 2196 transitions. [2022-11-20 09:28:45,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 316 transitions, 833 flow [2022-11-20 09:28:45,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 316 transitions, 826 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:28:45,295 INFO L231 Difference]: Finished difference. Result has 321 places, 316 transitions, 740 flow [2022-11-20 09:28:45,296 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=740, PETRI_PLACES=321, PETRI_TRANSITIONS=316} [2022-11-20 09:28:45,296 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -64 predicate places. [2022-11-20 09:28:45,297 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 316 transitions, 740 flow [2022-11-20 09:28:45,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 363.5) internal successors, (2181), 6 states have internal predecessors, (2181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:45,298 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:45,298 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:45,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-20 09:28:45,298 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:45,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:45,299 INFO L85 PathProgramCache]: Analyzing trace with hash 272987898, now seen corresponding path program 1 times [2022-11-20 09:28:45,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:45,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147277929] [2022-11-20 09:28:45,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:45,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:45,876 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 09:28:45,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:45,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147277929] [2022-11-20 09:28:45,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147277929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:45,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:45,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:28:45,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256614791] [2022-11-20 09:28:45,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:45,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:45,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:45,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:45,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:45,881 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 421 [2022-11-20 09:28:45,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 316 transitions, 740 flow. Second operand has 6 states, 6 states have (on average 364.5) internal successors, (2187), 6 states have internal predecessors, (2187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:45,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:45,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 421 [2022-11-20 09:28:45,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:47,342 INFO L130 PetriNetUnfolder]: 1022/6201 cut-off events. [2022-11-20 09:28:47,342 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-20 09:28:47,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8586 conditions, 6201 events. 1022/6201 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 63229 event pairs, 188 based on Foata normal form. 0/5577 useless extension candidates. Maximal degree in co-relation 8185. Up to 1156 conditions per place. [2022-11-20 09:28:47,494 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 42 selfloop transitions, 4 changer transitions 0/315 dead transitions. [2022-11-20 09:28:47,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 315 transitions, 830 flow [2022-11-20 09:28:47,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:28:47,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:28:47,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2195 transitions. [2022-11-20 09:28:47,500 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8689627870150436 [2022-11-20 09:28:47,500 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2195 transitions. [2022-11-20 09:28:47,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2195 transitions. [2022-11-20 09:28:47,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:47,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2195 transitions. [2022-11-20 09:28:47,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 365.8333333333333) internal successors, (2195), 6 states have internal predecessors, (2195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:47,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:47,510 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:47,510 INFO L175 Difference]: Start difference. First operand has 321 places, 316 transitions, 740 flow. Second operand 6 states and 2195 transitions. [2022-11-20 09:28:47,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 315 transitions, 830 flow [2022-11-20 09:28:47,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 315 transitions, 823 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:28:47,519 INFO L231 Difference]: Finished difference. Result has 321 places, 315 transitions, 739 flow [2022-11-20 09:28:47,519 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=739, PETRI_PLACES=321, PETRI_TRANSITIONS=315} [2022-11-20 09:28:47,520 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -64 predicate places. [2022-11-20 09:28:47,520 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 315 transitions, 739 flow [2022-11-20 09:28:47,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 364.5) internal successors, (2187), 6 states have internal predecessors, (2187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:47,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:28:47,521 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:28:47,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 09:28:47,522 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 90 more)] === [2022-11-20 09:28:47,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:28:47,522 INFO L85 PathProgramCache]: Analyzing trace with hash 451709154, now seen corresponding path program 1 times [2022-11-20 09:28:47,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:28:47,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395752798] [2022-11-20 09:28:47,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:28:47,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:28:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:28:48,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:28:48,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:28:48,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395752798] [2022-11-20 09:28:48,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395752798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:28:48,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:28:48,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:28:48,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433131273] [2022-11-20 09:28:48,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:28:48,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:28:48,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:28:48,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:28:48,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:28:48,267 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 358 out of 421 [2022-11-20 09:28:48,269 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 315 transitions, 739 flow. Second operand has 6 states, 6 states have (on average 365.5) internal successors, (2193), 6 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:48,269 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:28:48,269 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 358 of 421 [2022-11-20 09:28:48,269 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:28:49,606 INFO L130 PetriNetUnfolder]: 1022/6198 cut-off events. [2022-11-20 09:28:49,606 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 09:28:49,694 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8553 conditions, 6198 events. 1022/6198 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 63158 event pairs, 188 based on Foata normal form. 0/5577 useless extension candidates. Maximal degree in co-relation 8400. Up to 1156 conditions per place. [2022-11-20 09:28:49,697 INFO L137 encePairwiseOnDemand]: 416/421 looper letters, 0 selfloop transitions, 0 changer transitions 314/314 dead transitions. [2022-11-20 09:28:49,697 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 314 transitions, 827 flow [2022-11-20 09:28:49,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:28:49,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:28:49,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2194 transitions. [2022-11-20 09:28:49,705 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8685669041963578 [2022-11-20 09:28:49,705 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2194 transitions. [2022-11-20 09:28:49,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2194 transitions. [2022-11-20 09:28:49,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:28:49,706 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2194 transitions. [2022-11-20 09:28:49,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 365.6666666666667) internal successors, (2194), 6 states have internal predecessors, (2194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:49,712 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:49,713 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 421.0) internal successors, (2947), 7 states have internal predecessors, (2947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:49,713 INFO L175 Difference]: Start difference. First operand has 321 places, 315 transitions, 739 flow. Second operand 6 states and 2194 transitions. [2022-11-20 09:28:49,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 314 transitions, 827 flow [2022-11-20 09:28:49,718 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 314 transitions, 820 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:28:49,721 INFO L231 Difference]: Finished difference. Result has 321 places, 0 transitions, 0 flow [2022-11-20 09:28:49,721 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=421, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=321, PETRI_TRANSITIONS=0} [2022-11-20 09:28:49,722 INFO L288 CegarLoopForPetriNet]: 385 programPoint places, -64 predicate places. [2022-11-20 09:28:49,722 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 0 transitions, 0 flow [2022-11-20 09:28:49,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 365.5) internal successors, (2193), 6 states have internal predecessors, (2193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:28:49,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (93 of 94 remaining) [2022-11-20 09:28:49,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (92 of 94 remaining) [2022-11-20 09:28:49,728 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (91 of 94 remaining) [2022-11-20 09:28:49,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (90 of 94 remaining) [2022-11-20 09:28:49,733 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (89 of 94 remaining) [2022-11-20 09:28:49,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (88 of 94 remaining) [2022-11-20 09:28:49,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (87 of 94 remaining) [2022-11-20 09:28:49,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (86 of 94 remaining) [2022-11-20 09:28:49,734 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (85 of 94 remaining) [2022-11-20 09:28:49,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (84 of 94 remaining) [2022-11-20 09:28:49,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (83 of 94 remaining) [2022-11-20 09:28:49,735 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (82 of 94 remaining) [2022-11-20 09:28:49,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (81 of 94 remaining) [2022-11-20 09:28:49,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (80 of 94 remaining) [2022-11-20 09:28:49,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (79 of 94 remaining) [2022-11-20 09:28:49,736 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (78 of 94 remaining) [2022-11-20 09:28:49,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (77 of 94 remaining) [2022-11-20 09:28:49,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (76 of 94 remaining) [2022-11-20 09:28:49,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (75 of 94 remaining) [2022-11-20 09:28:49,737 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (74 of 94 remaining) [2022-11-20 09:28:49,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (73 of 94 remaining) [2022-11-20 09:28:49,738 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (72 of 94 remaining) [2022-11-20 09:28:49,740 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (71 of 94 remaining) [2022-11-20 09:28:49,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (70 of 94 remaining) [2022-11-20 09:28:49,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (69 of 94 remaining) [2022-11-20 09:28:49,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (68 of 94 remaining) [2022-11-20 09:28:49,741 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (67 of 94 remaining) [2022-11-20 09:28:49,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (66 of 94 remaining) [2022-11-20 09:28:49,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (65 of 94 remaining) [2022-11-20 09:28:49,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (64 of 94 remaining) [2022-11-20 09:28:49,742 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (63 of 94 remaining) [2022-11-20 09:28:49,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (62 of 94 remaining) [2022-11-20 09:28:49,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (61 of 94 remaining) [2022-11-20 09:28:49,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (60 of 94 remaining) [2022-11-20 09:28:49,743 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (59 of 94 remaining) [2022-11-20 09:28:49,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (58 of 94 remaining) [2022-11-20 09:28:49,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (57 of 94 remaining) [2022-11-20 09:28:49,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (56 of 94 remaining) [2022-11-20 09:28:49,744 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (55 of 94 remaining) [2022-11-20 09:28:49,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (54 of 94 remaining) [2022-11-20 09:28:49,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (53 of 94 remaining) [2022-11-20 09:28:49,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (52 of 94 remaining) [2022-11-20 09:28:49,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE (51 of 94 remaining) [2022-11-20 09:28:49,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 94 remaining) [2022-11-20 09:28:49,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 94 remaining) [2022-11-20 09:28:49,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 94 remaining) [2022-11-20 09:28:49,746 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 94 remaining) [2022-11-20 09:28:49,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 94 remaining) [2022-11-20 09:28:49,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 94 remaining) [2022-11-20 09:28:49,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (44 of 94 remaining) [2022-11-20 09:28:49,747 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (43 of 94 remaining) [2022-11-20 09:28:49,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (42 of 94 remaining) [2022-11-20 09:28:49,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (41 of 94 remaining) [2022-11-20 09:28:49,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (40 of 94 remaining) [2022-11-20 09:28:49,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONDATA_RACE (39 of 94 remaining) [2022-11-20 09:28:49,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONDATA_RACE (38 of 94 remaining) [2022-11-20 09:28:49,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONDATA_RACE (37 of 94 remaining) [2022-11-20 09:28:49,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONDATA_RACE (36 of 94 remaining) [2022-11-20 09:28:49,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err4ASSERT_VIOLATIONDATA_RACE (35 of 94 remaining) [2022-11-20 09:28:49,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err0ASSERT_VIOLATIONDATA_RACE (34 of 94 remaining) [2022-11-20 09:28:49,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err1ASSERT_VIOLATIONDATA_RACE (33 of 94 remaining) [2022-11-20 09:28:49,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err2ASSERT_VIOLATIONDATA_RACE (32 of 94 remaining) [2022-11-20 09:28:49,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err3ASSERT_VIOLATIONDATA_RACE (31 of 94 remaining) [2022-11-20 09:28:49,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err4ASSERT_VIOLATIONDATA_RACE (30 of 94 remaining) [2022-11-20 09:28:49,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 94 remaining) [2022-11-20 09:28:49,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (28 of 94 remaining) [2022-11-20 09:28:49,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (27 of 94 remaining) [2022-11-20 09:28:49,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (26 of 94 remaining) [2022-11-20 09:28:49,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (25 of 94 remaining) [2022-11-20 09:28:49,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (24 of 94 remaining) [2022-11-20 09:28:49,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (23 of 94 remaining) [2022-11-20 09:28:49,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (22 of 94 remaining) [2022-11-20 09:28:49,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (21 of 94 remaining) [2022-11-20 09:28:49,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (20 of 94 remaining) [2022-11-20 09:28:49,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (19 of 94 remaining) [2022-11-20 09:28:49,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (18 of 94 remaining) [2022-11-20 09:28:49,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (17 of 94 remaining) [2022-11-20 09:28:49,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (16 of 94 remaining) [2022-11-20 09:28:49,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (15 of 94 remaining) [2022-11-20 09:28:49,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONDATA_RACE (14 of 94 remaining) [2022-11-20 09:28:49,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONDATA_RACE (13 of 94 remaining) [2022-11-20 09:28:49,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err2ASSERT_VIOLATIONDATA_RACE (12 of 94 remaining) [2022-11-20 09:28:49,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err3ASSERT_VIOLATIONDATA_RACE (11 of 94 remaining) [2022-11-20 09:28:49,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err4ASSERT_VIOLATIONDATA_RACE (10 of 94 remaining) [2022-11-20 09:28:49,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err0ASSERT_VIOLATIONDATA_RACE (9 of 94 remaining) [2022-11-20 09:28:49,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err1ASSERT_VIOLATIONDATA_RACE (8 of 94 remaining) [2022-11-20 09:28:49,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err2ASSERT_VIOLATIONDATA_RACE (7 of 94 remaining) [2022-11-20 09:28:49,756 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err3ASSERT_VIOLATIONDATA_RACE (6 of 94 remaining) [2022-11-20 09:28:49,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread5Err4ASSERT_VIOLATIONDATA_RACE (5 of 94 remaining) [2022-11-20 09:28:49,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err0ASSERT_VIOLATIONDATA_RACE (4 of 94 remaining) [2022-11-20 09:28:49,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err1ASSERT_VIOLATIONDATA_RACE (3 of 94 remaining) [2022-11-20 09:28:49,757 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err2ASSERT_VIOLATIONDATA_RACE (2 of 94 remaining) [2022-11-20 09:28:49,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err3ASSERT_VIOLATIONDATA_RACE (1 of 94 remaining) [2022-11-20 09:28:49,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread6Err4ASSERT_VIOLATIONDATA_RACE (0 of 94 remaining) [2022-11-20 09:28:49,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-20 09:28:49,759 INFO L444 BasicCegarLoop]: Path program 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] [2022-11-20 09:28:49,766 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 09:28:49,767 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:28:49,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:28:49 BasicIcfg [2022-11-20 09:28:49,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:28:49,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:28:49,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:28:49,775 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:28:49,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:46" (3/4) ... [2022-11-20 09:28:49,779 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 09:28:49,786 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-20 09:28:49,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-20 09:28:49,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-20 09:28:49,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread4 [2022-11-20 09:28:49,787 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread5 [2022-11-20 09:28:49,788 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread6 [2022-11-20 09:28:49,803 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2022-11-20 09:28:49,803 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 09:28:49,803 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 09:28:49,804 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 09:28:49,863 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:28:49,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:28:49,864 INFO L158 Benchmark]: Toolchain (without parser) took 64540.58ms. Allocated memory was 197.1MB in the beginning and 13.1GB in the end (delta: 12.9GB). Free memory was 151.7MB in the beginning and 8.7GB in the end (delta: -8.5GB). Peak memory consumption was 4.4GB. Max. memory is 16.1GB. [2022-11-20 09:28:49,864 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:28:49,865 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.41ms. Allocated memory is still 197.1MB. Free memory was 151.7MB in the beginning and 139.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 09:28:49,865 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.56ms. Allocated memory is still 197.1MB. Free memory was 139.1MB in the beginning and 136.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 09:28:49,865 INFO L158 Benchmark]: Boogie Preprocessor took 52.76ms. Allocated memory is still 197.1MB. Free memory was 136.4MB in the beginning and 133.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:28:49,866 INFO L158 Benchmark]: RCFGBuilder took 1062.70ms. Allocated memory is still 197.1MB. Free memory was 133.8MB in the beginning and 104.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-20 09:28:49,866 INFO L158 Benchmark]: TraceAbstraction took 62948.60ms. Allocated memory was 197.1MB in the beginning and 13.1GB in the end (delta: 12.9GB). Free memory was 103.9MB in the beginning and 8.7GB in the end (delta: -8.6GB). Peak memory consumption was 4.3GB. Max. memory is 16.1GB. [2022-11-20 09:28:49,866 INFO L158 Benchmark]: Witness Printer took 88.57ms. Allocated memory is still 13.1GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 09:28:49,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.41ms. Allocated memory is still 197.1MB. Free memory was 151.7MB in the beginning and 139.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.56ms. Allocated memory is still 197.1MB. Free memory was 139.1MB in the beginning and 136.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.76ms. Allocated memory is still 197.1MB. Free memory was 136.4MB in the beginning and 133.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1062.70ms. Allocated memory is still 197.1MB. Free memory was 133.8MB in the beginning and 104.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 62948.60ms. Allocated memory was 197.1MB in the beginning and 13.1GB in the end (delta: 12.9GB). Free memory was 103.9MB in the beginning and 8.7GB in the end (delta: -8.6GB). Peak memory consumption was 4.3GB. Max. memory is 16.1GB. * Witness Printer took 88.57ms. Allocated memory is still 13.1GB. Free memory was 8.7GB in the beginning and 8.7GB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 38]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 38]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 39]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 46]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 106]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 107]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 108]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 109]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 110]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 111]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 62]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 13 procedures, 539 locations, 94 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 62.7s, OverallIterations: 26, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 56.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 287 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 287 mSDsluCounter, 434 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 236 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1300 IncrementalHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 236 mSolverCounterUnsat, 434 mSDtfsCounter, 1300 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=806occurred in iteration=0, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 2662 NumberOfCodeBlocks, 2662 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2636 ConstructedInterpolants, 0 QuantifiedInterpolants, 3162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 58 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 09:28:49,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9f94783-b45f-4465-85da-5fff41eedef7/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE