./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-three-array-max.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_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/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_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/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_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/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 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad --- 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 09:29:25,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:29:25,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:29:25,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:29:25,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:29:25,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:29:25,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:29:25,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:29:25,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:29:25,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:29:25,608 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:29:25,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:29:25,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:29:25,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:29:25,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:29:25,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:29:25,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:29:25,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:29:25,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:29:25,630 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:29:25,632 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:29:25,634 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:29:25,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:29:25,647 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:29:25,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:29:25,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:29:25,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:29:25,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:29:25,661 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:29:25,662 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:29:25,663 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:29:25,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:29:25,666 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:29:25,667 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:29:25,669 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:29:25,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:29:25,670 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:29:25,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:29:25,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:29:25,672 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:29:25,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:29:25,673 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 09:29:25,716 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:29:25,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:29:25,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:29:25,717 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:29:25,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:29:25,718 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:29:25,718 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:29:25,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:29:25,723 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:29:25,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:29:25,724 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:29:25,725 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:29:25,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:29:25,725 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:29:25,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:29:25,726 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 09:29:25,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:29:25,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 09:29:25,726 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 09:29:25,726 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:29:25,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 09:29:25,727 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:29:25,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 09:29:25,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:29:25,728 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:29:25,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:29:25,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:25,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:29:25,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:29:25,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 09:29:25,730 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:29:25,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:29:25,730 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 09:29:25,730 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 09:29:25,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 09:29:25,731 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_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 306d85d0b5300749928a8392783cd7ec5acf0c4622b6bdba80c3589786dd98ad [2022-11-20 09:29:26,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:29:26,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:29:26,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:29:26,107 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:29:26,108 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:29:26,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-11-20 09:29:29,261 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:29:29,459 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:29:29,459 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c [2022-11-20 09:29:29,467 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/data/67bd95a61/22fe8c702c8a4ffa9d5b72acff781709/FLAGa498fdbb2 [2022-11-20 09:29:29,484 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/data/67bd95a61/22fe8c702c8a4ffa9d5b72acff781709 [2022-11-20 09:29:29,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:29:29,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:29:29,490 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:29,490 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:29:29,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:29:29,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:29,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22b4922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29, skipping insertion in model container [2022-11-20 09:29:29,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:29,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:29:29,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:29:29,843 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_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-11-20 09:29:29,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:29,866 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:29:29,923 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_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/sv-benchmarks/c/weaver/popl20-three-array-max.wvr.c[2823,2836] [2022-11-20 09:29:29,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:29:29,944 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:29:29,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29 WrapperNode [2022-11-20 09:29:29,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:29:29,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:29,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:29:29,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:29:29,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:29,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:30,049 INFO L138 Inliner]: procedures = 26, calls = 57, calls flagged for inlining = 14, calls inlined = 22, statements flattened = 371 [2022-11-20 09:29:30,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:29:30,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:29:30,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:29:30,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:29:30,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:30,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:30,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:30,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:30,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:30,123 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:30,125 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:30,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:30,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:29:30,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:29:30,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:29:30,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:29:30,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (1/1) ... [2022-11-20 09:29:30,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:29:30,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:29:30,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:29:30,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:29:30,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:29:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:29:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:29:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 09:29:30,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-20 09:29:30,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-20 09:29:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-20 09:29:30,258 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-20 09:29:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-20 09:29:30,258 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-20 09:29:30,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:29:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 09:29:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 09:29:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 09:29:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:29:30,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:29:30,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:29:30,262 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 09:29:30,466 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:29:30,481 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:29:31,596 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:29:31,892 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:29:31,892 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-20 09:29:31,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:31 BoogieIcfgContainer [2022-11-20 09:29:31,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:29:31,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:29:31,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:29:31,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:29:31,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:29:29" (1/3) ... [2022-11-20 09:29:31,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c15c9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:31, skipping insertion in model container [2022-11-20 09:29:31,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:29:29" (2/3) ... [2022-11-20 09:29:31,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c15c9b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:29:31, skipping insertion in model container [2022-11-20 09:29:31,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:29:31" (3/3) ... [2022-11-20 09:29:31,911 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-three-array-max.wvr.c [2022-11-20 09:29:31,921 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 09:29:31,934 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:29:31,934 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 58 error locations. [2022-11-20 09:29:31,935 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:29:32,110 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-20 09:29:32,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 528 transitions, 1080 flow [2022-11-20 09:29:32,428 INFO L130 PetriNetUnfolder]: 27/525 cut-off events. [2022-11-20 09:29:32,428 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 09:29:32,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 538 conditions, 525 events. 27/525 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 623 event pairs, 0 based on Foata normal form. 0/440 useless extension candidates. Maximal degree in co-relation 421. Up to 3 conditions per place. [2022-11-20 09:29:32,439 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 528 transitions, 1080 flow [2022-11-20 09:29:32,452 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 464 places, 478 transitions, 974 flow [2022-11-20 09:29:32,471 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:29:32,480 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;@6fb77249, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:29:32,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2022-11-20 09:29:32,487 INFO L130 PetriNetUnfolder]: 0/27 cut-off events. [2022-11-20 09:29:32,488 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:29:32,488 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:32,489 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:32,490 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:32,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:32,495 INFO L85 PathProgramCache]: Analyzing trace with hash -769325671, now seen corresponding path program 1 times [2022-11-20 09:29:32,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:32,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330789556] [2022-11-20 09:29:32,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:32,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:32,790 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 09:29:32,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:32,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330789556] [2022-11-20 09:29:32,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330789556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:32,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:32,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:32,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899374383] [2022-11-20 09:29:32,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:32,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:32,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:32,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:32,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:32,865 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 459 out of 528 [2022-11-20 09:29:32,874 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 464 places, 478 transitions, 974 flow. Second operand has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:32,874 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:32,874 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 459 of 528 [2022-11-20 09:29:32,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:33,572 INFO L130 PetriNetUnfolder]: 390/1591 cut-off events. [2022-11-20 09:29:33,573 INFO L131 PetriNetUnfolder]: For 140/293 co-relation queries the response was YES. [2022-11-20 09:29:33,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2229 conditions, 1591 events. 390/1591 cut-off events. For 140/293 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 9169 event pairs, 255 based on Foata normal form. 12/1253 useless extension candidates. Maximal degree in co-relation 1742. Up to 545 conditions per place. [2022-11-20 09:29:33,597 INFO L137 encePairwiseOnDemand]: 496/528 looper letters, 33 selfloop transitions, 2 changer transitions 9/448 dead transitions. [2022-11-20 09:29:33,597 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 448 transitions, 984 flow [2022-11-20 09:29:33,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:33,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:33,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1442 transitions. [2022-11-20 09:29:33,621 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9103535353535354 [2022-11-20 09:29:33,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1442 transitions. [2022-11-20 09:29:33,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1442 transitions. [2022-11-20 09:29:33,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:33,630 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1442 transitions. [2022-11-20 09:29:33,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 480.6666666666667) internal successors, (1442), 3 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:33,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:33,650 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:33,653 INFO L175 Difference]: Start difference. First operand has 464 places, 478 transitions, 974 flow. Second operand 3 states and 1442 transitions. [2022-11-20 09:29:33,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 448 transitions, 984 flow [2022-11-20 09:29:33,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 445 places, 448 transitions, 972 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-20 09:29:33,677 INFO L231 Difference]: Finished difference. Result has 445 places, 439 transitions, 888 flow [2022-11-20 09:29:33,680 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=446, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=888, PETRI_PLACES=445, PETRI_TRANSITIONS=439} [2022-11-20 09:29:33,685 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -19 predicate places. [2022-11-20 09:29:33,685 INFO L495 AbstractCegarLoop]: Abstraction has has 445 places, 439 transitions, 888 flow [2022-11-20 09:29:33,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 460.3333333333333) internal successors, (1381), 3 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:33,687 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:33,687 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:33,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:29:33,689 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:33,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:33,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1999339951, now seen corresponding path program 1 times [2022-11-20 09:29:33,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:33,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028083766] [2022-11-20 09:29:33,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:33,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:33,782 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 09:29:33,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:33,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028083766] [2022-11-20 09:29:33,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028083766] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:33,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:33,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:33,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555608677] [2022-11-20 09:29:33,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:33,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:33,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:33,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:33,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:33,788 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 528 [2022-11-20 09:29:33,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 439 transitions, 888 flow. Second operand has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:33,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:33,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 528 [2022-11-20 09:29:33,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:34,202 INFO L130 PetriNetUnfolder]: 223/1238 cut-off events. [2022-11-20 09:29:34,203 INFO L131 PetriNetUnfolder]: For 27/107 co-relation queries the response was YES. [2022-11-20 09:29:34,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 1238 events. 223/1238 cut-off events. For 27/107 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6564 event pairs, 128 based on Foata normal form. 0/1045 useless extension candidates. Maximal degree in co-relation 1523. Up to 299 conditions per place. [2022-11-20 09:29:34,217 INFO L137 encePairwiseOnDemand]: 520/528 looper letters, 24 selfloop transitions, 1 changer transitions 0/432 dead transitions. [2022-11-20 09:29:34,217 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 432 transitions, 924 flow [2022-11-20 09:29:34,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:34,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:34,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1418 transitions. [2022-11-20 09:29:34,221 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8952020202020202 [2022-11-20 09:29:34,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1418 transitions. [2022-11-20 09:29:34,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1418 transitions. [2022-11-20 09:29:34,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:34,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1418 transitions. [2022-11-20 09:29:34,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 472.6666666666667) internal successors, (1418), 3 states have internal predecessors, (1418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:34,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:34,231 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:34,231 INFO L175 Difference]: Start difference. First operand has 445 places, 439 transitions, 888 flow. Second operand 3 states and 1418 transitions. [2022-11-20 09:29:34,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 432 transitions, 924 flow [2022-11-20 09:29:34,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 432 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:34,304 INFO L231 Difference]: Finished difference. Result has 429 places, 432 transitions, 872 flow [2022-11-20 09:29:34,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=870, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=872, PETRI_PLACES=429, PETRI_TRANSITIONS=432} [2022-11-20 09:29:34,307 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-20 09:29:34,307 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 432 transitions, 872 flow [2022-11-20 09:29:34,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:34,309 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:34,309 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 09:29:34,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:29:34,309 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:34,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:34,310 INFO L85 PathProgramCache]: Analyzing trace with hash 957015581, now seen corresponding path program 1 times [2022-11-20 09:29:34,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:34,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790604131] [2022-11-20 09:29:34,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:34,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:34,414 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 09:29:34,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:34,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790604131] [2022-11-20 09:29:34,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790604131] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:34,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:34,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:34,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269246076] [2022-11-20 09:29:34,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:34,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:34,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:34,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:34,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:34,420 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 528 [2022-11-20 09:29:34,422 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 432 transitions, 872 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:34,422 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:34,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 528 [2022-11-20 09:29:34,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:34,924 INFO L130 PetriNetUnfolder]: 157/1366 cut-off events. [2022-11-20 09:29:34,925 INFO L131 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2022-11-20 09:29:34,931 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1605 conditions, 1366 events. 157/1366 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 7560 event pairs, 78 based on Foata normal form. 0/1149 useless extension candidates. Maximal degree in co-relation 1569. Up to 212 conditions per place. [2022-11-20 09:29:34,937 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 24 selfloop transitions, 2 changer transitions 0/431 dead transitions. [2022-11-20 09:29:34,938 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 431 transitions, 922 flow [2022-11-20 09:29:34,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:34,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-20 09:29:34,944 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-20 09:29:34,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-20 09:29:34,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-20 09:29:34,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:34,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-20 09:29:34,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:34,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:34,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:34,956 INFO L175 Difference]: Start difference. First operand has 429 places, 432 transitions, 872 flow. Second operand 3 states and 1431 transitions. [2022-11-20 09:29:34,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 431 transitions, 922 flow [2022-11-20 09:29:34,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 431 transitions, 921 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:29:34,965 INFO L231 Difference]: Finished difference. Result has 429 places, 431 transitions, 873 flow [2022-11-20 09:29:34,966 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=869, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=429, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=873, PETRI_PLACES=429, PETRI_TRANSITIONS=431} [2022-11-20 09:29:34,969 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-20 09:29:34,969 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 431 transitions, 873 flow [2022-11-20 09:29:34,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:34,971 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:34,971 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:34,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:29:34,972 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:34,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:34,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1250926964, now seen corresponding path program 1 times [2022-11-20 09:29:34,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:34,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220885451] [2022-11-20 09:29:34,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:34,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:35,676 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 09:29:35,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:35,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220885451] [2022-11-20 09:29:35,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220885451] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:35,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:35,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:29:35,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711225329] [2022-11-20 09:29:35,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:35,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:29:35,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:35,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:29:35,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:35,682 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 528 [2022-11-20 09:29:35,686 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 431 transitions, 873 flow. Second operand has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:35,686 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:35,686 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 528 [2022-11-20 09:29:35,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:38,460 INFO L130 PetriNetUnfolder]: 2943/6619 cut-off events. [2022-11-20 09:29:38,460 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 09:29:38,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10839 conditions, 6619 events. 2943/6619 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 52733 event pairs, 2244 based on Foata normal form. 0/5702 useless extension candidates. Maximal degree in co-relation 10804. Up to 4124 conditions per place. [2022-11-20 09:29:38,540 INFO L137 encePairwiseOnDemand]: 510/528 looper letters, 108 selfloop transitions, 15 changer transitions 0/428 dead transitions. [2022-11-20 09:29:38,540 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 431 places, 428 transitions, 1113 flow [2022-11-20 09:29:38,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:29:38,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:29:38,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2340 transitions. [2022-11-20 09:29:38,548 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7386363636363636 [2022-11-20 09:29:38,551 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2340 transitions. [2022-11-20 09:29:38,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2340 transitions. [2022-11-20 09:29:38,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:38,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2340 transitions. [2022-11-20 09:29:38,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 390.0) internal successors, (2340), 6 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:38,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:38,571 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:38,571 INFO L175 Difference]: Start difference. First operand has 429 places, 431 transitions, 873 flow. Second operand 6 states and 2340 transitions. [2022-11-20 09:29:38,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 431 places, 428 transitions, 1113 flow [2022-11-20 09:29:38,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 429 places, 428 transitions, 1109 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:38,592 INFO L231 Difference]: Finished difference. Result has 429 places, 428 transitions, 893 flow [2022-11-20 09:29:38,593 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=863, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=893, PETRI_PLACES=429, PETRI_TRANSITIONS=428} [2022-11-20 09:29:38,595 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -35 predicate places. [2022-11-20 09:29:38,595 INFO L495 AbstractCegarLoop]: Abstraction has has 429 places, 428 transitions, 893 flow [2022-11-20 09:29:38,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 370.8333333333333) internal successors, (2225), 6 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:38,597 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:38,598 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:38,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:29:38,598 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:38,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:38,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1587191139, now seen corresponding path program 1 times [2022-11-20 09:29:38,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:38,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223430716] [2022-11-20 09:29:38,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:38,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:38,723 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 09:29:38,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:38,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223430716] [2022-11-20 09:29:38,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223430716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:38,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:38,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:38,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082314031] [2022-11-20 09:29:38,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:38,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:38,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:38,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:38,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:38,733 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 468 out of 528 [2022-11-20 09:29:38,735 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 429 places, 428 transitions, 893 flow. Second operand has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:38,735 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:38,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 468 of 528 [2022-11-20 09:29:38,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:39,165 INFO L130 PetriNetUnfolder]: 154/1308 cut-off events. [2022-11-20 09:29:39,165 INFO L131 PetriNetUnfolder]: For 20/23 co-relation queries the response was YES. [2022-11-20 09:29:39,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1556 conditions, 1308 events. 154/1308 cut-off events. For 20/23 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 6943 event pairs, 78 based on Foata normal form. 0/1105 useless extension candidates. Maximal degree in co-relation 1520. Up to 206 conditions per place. [2022-11-20 09:29:39,178 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 24 selfloop transitions, 2 changer transitions 0/427 dead transitions. [2022-11-20 09:29:39,178 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 427 transitions, 943 flow [2022-11-20 09:29:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:39,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:39,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1431 transitions. [2022-11-20 09:29:39,241 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9034090909090909 [2022-11-20 09:29:39,241 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1431 transitions. [2022-11-20 09:29:39,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1431 transitions. [2022-11-20 09:29:39,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:39,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1431 transitions. [2022-11-20 09:29:39,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 477.0) internal successors, (1431), 3 states have internal predecessors, (1431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,252 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,253 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,254 INFO L175 Difference]: Start difference. First operand has 429 places, 428 transitions, 893 flow. Second operand 3 states and 1431 transitions. [2022-11-20 09:29:39,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 427 transitions, 943 flow [2022-11-20 09:29:39,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 427 transitions, 913 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:29:39,265 INFO L231 Difference]: Finished difference. Result has 425 places, 427 transitions, 865 flow [2022-11-20 09:29:39,266 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=861, PETRI_DIFFERENCE_MINUEND_PLACES=423, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=865, PETRI_PLACES=425, PETRI_TRANSITIONS=427} [2022-11-20 09:29:39,269 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -39 predicate places. [2022-11-20 09:29:39,269 INFO L495 AbstractCegarLoop]: Abstraction has has 425 places, 427 transitions, 865 flow [2022-11-20 09:29:39,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,270 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:39,271 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:39,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:29:39,271 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:39,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:39,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1042780861, now seen corresponding path program 1 times [2022-11-20 09:29:39,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:39,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506946876] [2022-11-20 09:29:39,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:39,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:39,370 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 09:29:39,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:39,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506946876] [2022-11-20 09:29:39,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506946876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:39,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:39,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:39,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229124020] [2022-11-20 09:29:39,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:39,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:39,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:39,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:39,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:39,377 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-20 09:29:39,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 425 places, 427 transitions, 865 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:39,382 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-20 09:29:39,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:39,616 INFO L130 PetriNetUnfolder]: 37/530 cut-off events. [2022-11-20 09:29:39,616 INFO L131 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-11-20 09:29:39,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 589 conditions, 530 events. 37/530 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1127 event pairs, 12 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 553. Up to 48 conditions per place. [2022-11-20 09:29:39,628 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 12 selfloop transitions, 2 changer transitions 0/426 dead transitions. [2022-11-20 09:29:39,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 426 transitions, 891 flow [2022-11-20 09:29:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-20 09:29:39,633 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185606060606061 [2022-11-20 09:29:39,633 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-20 09:29:39,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-20 09:29:39,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:39,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-20 09:29:39,641 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,646 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,647 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,647 INFO L175 Difference]: Start difference. First operand has 425 places, 427 transitions, 865 flow. Second operand 3 states and 1455 transitions. [2022-11-20 09:29:39,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 426 transitions, 891 flow [2022-11-20 09:29:39,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 426 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:39,658 INFO L231 Difference]: Finished difference. Result has 424 places, 426 transitions, 863 flow [2022-11-20 09:29:39,659 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=859, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=424, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=863, PETRI_PLACES=424, PETRI_TRANSITIONS=426} [2022-11-20 09:29:39,661 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -40 predicate places. [2022-11-20 09:29:39,661 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 426 transitions, 863 flow [2022-11-20 09:29:39,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,662 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:39,663 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:29:39,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:29:39,663 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:39,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:39,664 INFO L85 PathProgramCache]: Analyzing trace with hash 569493067, now seen corresponding path program 1 times [2022-11-20 09:29:39,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:39,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173486407] [2022-11-20 09:29:39,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:39,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:39,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:39,742 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 09:29:39,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:39,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173486407] [2022-11-20 09:29:39,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173486407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:39,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:39,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:39,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805529929] [2022-11-20 09:29:39,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:39,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:39,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:39,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:39,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:39,753 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-20 09:29:39,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 426 transitions, 863 flow. Second operand has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:39,755 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-20 09:29:39,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:39,972 INFO L130 PetriNetUnfolder]: 37/529 cut-off events. [2022-11-20 09:29:39,973 INFO L131 PetriNetUnfolder]: For 14/17 co-relation queries the response was YES. [2022-11-20 09:29:39,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 529 events. 37/529 cut-off events. For 14/17 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1131 event pairs, 12 based on Foata normal form. 0/473 useless extension candidates. Maximal degree in co-relation 552. Up to 48 conditions per place. [2022-11-20 09:29:39,977 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 12 selfloop transitions, 2 changer transitions 0/425 dead transitions. [2022-11-20 09:29:39,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 425 places, 425 transitions, 889 flow [2022-11-20 09:29:39,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:39,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:39,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1455 transitions. [2022-11-20 09:29:39,983 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185606060606061 [2022-11-20 09:29:39,983 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1455 transitions. [2022-11-20 09:29:39,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1455 transitions. [2022-11-20 09:29:39,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:39,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1455 transitions. [2022-11-20 09:29:39,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 485.0) internal successors, (1455), 3 states have internal predecessors, (1455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,995 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:39,995 INFO L175 Difference]: Start difference. First operand has 424 places, 426 transitions, 863 flow. Second operand 3 states and 1455 transitions. [2022-11-20 09:29:39,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 425 places, 425 transitions, 889 flow [2022-11-20 09:29:39,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 425 transitions, 885 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:40,006 INFO L231 Difference]: Finished difference. Result has 423 places, 425 transitions, 861 flow [2022-11-20 09:29:40,007 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=857, PETRI_DIFFERENCE_MINUEND_PLACES=421, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=861, PETRI_PLACES=423, PETRI_TRANSITIONS=425} [2022-11-20 09:29:40,007 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -41 predicate places. [2022-11-20 09:29:40,008 INFO L495 AbstractCegarLoop]: Abstraction has has 423 places, 425 transitions, 861 flow [2022-11-20 09:29:40,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 481.3333333333333) internal successors, (1444), 3 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:40,009 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:40,009 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:40,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:29:40,010 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:40,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:40,011 INFO L85 PathProgramCache]: Analyzing trace with hash 648145926, now seen corresponding path program 1 times [2022-11-20 09:29:40,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:40,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567430389] [2022-11-20 09:29:40,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:40,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:40,088 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 09:29:40,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:40,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567430389] [2022-11-20 09:29:40,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567430389] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:40,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:40,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:40,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406341364] [2022-11-20 09:29:40,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:40,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:40,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:40,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:40,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:40,095 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-20 09:29:40,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 425 transitions, 861 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:40,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:40,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-20 09:29:40,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:40,467 INFO L130 PetriNetUnfolder]: 129/1285 cut-off events. [2022-11-20 09:29:40,468 INFO L131 PetriNetUnfolder]: For 23/26 co-relation queries the response was YES. [2022-11-20 09:29:40,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1469 conditions, 1285 events. 129/1285 cut-off events. For 23/26 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6884 event pairs, 56 based on Foata normal form. 0/1104 useless extension candidates. Maximal degree in co-relation 1434. Up to 160 conditions per place. [2022-11-20 09:29:40,481 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 18 selfloop transitions, 1 changer transitions 0/421 dead transitions. [2022-11-20 09:29:40,482 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 421 transitions, 891 flow [2022-11-20 09:29:40,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:40,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:40,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-20 09:29:40,487 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-20 09:29:40,488 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-20 09:29:40,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-20 09:29:40,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:40,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-20 09:29:40,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:40,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:40,501 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:40,501 INFO L175 Difference]: Start difference. First operand has 423 places, 425 transitions, 861 flow. Second operand 3 states and 1436 transitions. [2022-11-20 09:29:40,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 421 transitions, 891 flow [2022-11-20 09:29:40,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 421 transitions, 887 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:40,513 INFO L231 Difference]: Finished difference. Result has 419 places, 421 transitions, 851 flow [2022-11-20 09:29:40,514 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=849, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=421, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=420, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=419, PETRI_TRANSITIONS=421} [2022-11-20 09:29:40,514 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -45 predicate places. [2022-11-20 09:29:40,515 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 421 transitions, 851 flow [2022-11-20 09:29:40,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:40,517 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:40,517 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:40,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:29:40,518 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:40,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:40,518 INFO L85 PathProgramCache]: Analyzing trace with hash -795402422, now seen corresponding path program 1 times [2022-11-20 09:29:40,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:40,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517424242] [2022-11-20 09:29:40,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:40,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:41,094 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 09:29:41,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:41,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517424242] [2022-11-20 09:29:41,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517424242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:41,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:41,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:29:41,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300594348] [2022-11-20 09:29:41,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:41,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:29:41,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:41,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:29:41,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:41,100 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-20 09:29:41,102 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 421 transitions, 851 flow. Second operand has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:41,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:41,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-20 09:29:41,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:44,384 INFO L130 PetriNetUnfolder]: 3172/11360 cut-off events. [2022-11-20 09:29:44,385 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-11-20 09:29:44,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15924 conditions, 11360 events. 3172/11360 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 409. Compared 124209 event pairs, 924 based on Foata normal form. 0/10143 useless extension candidates. Maximal degree in co-relation 15888. Up to 2825 conditions per place. [2022-11-20 09:29:44,485 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 140 selfloop transitions, 5 changer transitions 0/470 dead transitions. [2022-11-20 09:29:44,485 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 422 places, 470 transitions, 1243 flow [2022-11-20 09:29:44,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:29:44,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:29:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2523 transitions. [2022-11-20 09:29:44,493 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7964015151515151 [2022-11-20 09:29:44,494 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2523 transitions. [2022-11-20 09:29:44,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2523 transitions. [2022-11-20 09:29:44,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:44,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2523 transitions. [2022-11-20 09:29:44,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.5) internal successors, (2523), 6 states have internal predecessors, (2523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:44,510 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:44,511 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:44,512 INFO L175 Difference]: Start difference. First operand has 419 places, 421 transitions, 851 flow. Second operand 6 states and 2523 transitions. [2022-11-20 09:29:44,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 422 places, 470 transitions, 1243 flow [2022-11-20 09:29:44,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 470 transitions, 1242 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:29:44,523 INFO L231 Difference]: Finished difference. Result has 422 places, 420 transitions, 862 flow [2022-11-20 09:29:44,524 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=846, PETRI_DIFFERENCE_MINUEND_PLACES=416, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=862, PETRI_PLACES=422, PETRI_TRANSITIONS=420} [2022-11-20 09:29:44,525 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -42 predicate places. [2022-11-20 09:29:44,526 INFO L495 AbstractCegarLoop]: Abstraction has has 422 places, 420 transitions, 862 flow [2022-11-20 09:29:44,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.3333333333333) internal successors, (2384), 6 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:44,527 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:44,527 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:44,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:29:44,528 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:44,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:44,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1747857120, now seen corresponding path program 1 times [2022-11-20 09:29:44,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:44,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138053610] [2022-11-20 09:29:44,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:44,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:44,622 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 09:29:44,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:44,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138053610] [2022-11-20 09:29:44,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138053610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:44,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:44,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:44,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893299973] [2022-11-20 09:29:44,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:44,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:44,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:44,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:44,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:44,635 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-20 09:29:44,637 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 422 places, 420 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:44,637 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:44,637 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-20 09:29:44,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:45,024 INFO L130 PetriNetUnfolder]: 162/1308 cut-off events. [2022-11-20 09:29:45,024 INFO L131 PetriNetUnfolder]: For 87/95 co-relation queries the response was YES. [2022-11-20 09:29:45,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1658 conditions, 1308 events. 162/1308 cut-off events. For 87/95 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 7006 event pairs, 80 based on Foata normal form. 0/1127 useless extension candidates. Maximal degree in co-relation 1621. Up to 224 conditions per place. [2022-11-20 09:29:45,037 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 22 selfloop transitions, 2 changer transitions 0/419 dead transitions. [2022-11-20 09:29:45,037 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 423 places, 419 transitions, 908 flow [2022-11-20 09:29:45,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:45,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1437 transitions. [2022-11-20 09:29:45,043 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9071969696969697 [2022-11-20 09:29:45,043 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1437 transitions. [2022-11-20 09:29:45,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1437 transitions. [2022-11-20 09:29:45,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:45,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1437 transitions. [2022-11-20 09:29:45,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 479.0) internal successors, (1437), 3 states have internal predecessors, (1437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:45,052 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:45,053 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:45,053 INFO L175 Difference]: Start difference. First operand has 422 places, 420 transitions, 862 flow. Second operand 3 states and 1437 transitions. [2022-11-20 09:29:45,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 423 places, 419 transitions, 908 flow [2022-11-20 09:29:45,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 419 transitions, 900 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:29:45,064 INFO L231 Difference]: Finished difference. Result has 419 places, 419 transitions, 856 flow [2022-11-20 09:29:45,066 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=852, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=417, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=856, PETRI_PLACES=419, PETRI_TRANSITIONS=419} [2022-11-20 09:29:45,067 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -45 predicate places. [2022-11-20 09:29:45,067 INFO L495 AbstractCegarLoop]: Abstraction has has 419 places, 419 transitions, 856 flow [2022-11-20 09:29:45,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:45,068 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:45,068 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:45,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:29:45,069 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:45,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:45,070 INFO L85 PathProgramCache]: Analyzing trace with hash 937965395, now seen corresponding path program 1 times [2022-11-20 09:29:45,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:45,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018154530] [2022-11-20 09:29:45,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:45,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:45,143 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 09:29:45,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:45,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018154530] [2022-11-20 09:29:45,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018154530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:45,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:45,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:45,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722350432] [2022-11-20 09:29:45,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:45,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:45,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:45,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:45,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:45,150 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-20 09:29:45,152 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 419 transitions, 856 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:45,152 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:45,152 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-20 09:29:45,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:45,555 INFO L130 PetriNetUnfolder]: 131/1285 cut-off events. [2022-11-20 09:29:45,555 INFO L131 PetriNetUnfolder]: For 68/73 co-relation queries the response was YES. [2022-11-20 09:29:45,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1522 conditions, 1285 events. 131/1285 cut-off events. For 68/73 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 6905 event pairs, 58 based on Foata normal form. 0/1125 useless extension candidates. Maximal degree in co-relation 1486. Up to 164 conditions per place. [2022-11-20 09:29:45,565 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 19 selfloop transitions, 1 changer transitions 0/415 dead transitions. [2022-11-20 09:29:45,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 415 transitions, 888 flow [2022-11-20 09:29:45,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:45,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-20 09:29:45,571 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-20 09:29:45,571 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-20 09:29:45,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-20 09:29:45,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:45,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-20 09:29:45,577 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:45,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:45,582 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:45,583 INFO L175 Difference]: Start difference. First operand has 419 places, 419 transitions, 856 flow. Second operand 3 states and 1436 transitions. [2022-11-20 09:29:45,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 415 transitions, 888 flow [2022-11-20 09:29:45,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 415 transitions, 884 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:45,595 INFO L231 Difference]: Finished difference. Result has 415 places, 415 transitions, 846 flow [2022-11-20 09:29:45,596 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=844, PETRI_DIFFERENCE_MINUEND_PLACES=413, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=846, PETRI_PLACES=415, PETRI_TRANSITIONS=415} [2022-11-20 09:29:45,596 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -49 predicate places. [2022-11-20 09:29:45,596 INFO L495 AbstractCegarLoop]: Abstraction has has 415 places, 415 transitions, 846 flow [2022-11-20 09:29:45,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:45,597 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:45,598 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 09:29:45,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 09:29:45,598 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:45,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:45,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1107462591, now seen corresponding path program 1 times [2022-11-20 09:29:45,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:45,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54724931] [2022-11-20 09:29:45,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:45,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:46,463 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 09:29:46,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:46,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54724931] [2022-11-20 09:29:46,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54724931] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:46,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:46,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:29:46,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467111350] [2022-11-20 09:29:46,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:46,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:29:46,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:46,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:29:46,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:46,470 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-20 09:29:46,474 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 415 places, 415 transitions, 846 flow. Second operand has 6 states, 6 states have (on average 398.1666666666667) internal successors, (2389), 6 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:46,474 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:46,475 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-20 09:29:46,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:50,169 INFO L130 PetriNetUnfolder]: 3172/11292 cut-off events. [2022-11-20 09:29:50,170 INFO L131 PetriNetUnfolder]: For 1242/1242 co-relation queries the response was YES. [2022-11-20 09:29:50,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17087 conditions, 11292 events. 3172/11292 cut-off events. For 1242/1242 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 123379 event pairs, 924 based on Foata normal form. 0/10123 useless extension candidates. Maximal degree in co-relation 17050. Up to 2830 conditions per place. [2022-11-20 09:29:50,276 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 138 selfloop transitions, 5 changer transitions 0/463 dead transitions. [2022-11-20 09:29:50,276 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 463 transitions, 1232 flow [2022-11-20 09:29:50,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:29:50,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:29:50,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2521 transitions. [2022-11-20 09:29:50,284 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.795770202020202 [2022-11-20 09:29:50,284 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2521 transitions. [2022-11-20 09:29:50,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2521 transitions. [2022-11-20 09:29:50,286 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:50,286 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2521 transitions. [2022-11-20 09:29:50,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 420.1666666666667) internal successors, (2521), 6 states have internal predecessors, (2521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,302 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,302 INFO L175 Difference]: Start difference. First operand has 415 places, 415 transitions, 846 flow. Second operand 6 states and 2521 transitions. [2022-11-20 09:29:50,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 463 transitions, 1232 flow [2022-11-20 09:29:50,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 417 places, 463 transitions, 1231 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:29:50,315 INFO L231 Difference]: Finished difference. Result has 417 places, 413 transitions, 851 flow [2022-11-20 09:29:50,316 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=851, PETRI_PLACES=417, PETRI_TRANSITIONS=413} [2022-11-20 09:29:50,318 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -47 predicate places. [2022-11-20 09:29:50,318 INFO L495 AbstractCegarLoop]: Abstraction has has 417 places, 413 transitions, 851 flow [2022-11-20 09:29:50,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 398.1666666666667) internal successors, (2389), 6 states have internal predecessors, (2389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,320 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:50,320 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:50,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 09:29:50,320 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:50,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:50,321 INFO L85 PathProgramCache]: Analyzing trace with hash -67205247, now seen corresponding path program 1 times [2022-11-20 09:29:50,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:50,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064689873] [2022-11-20 09:29:50,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:50,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:50,422 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 09:29:50,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:50,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064689873] [2022-11-20 09:29:50,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064689873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:50,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:50,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:50,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953582482] [2022-11-20 09:29:50,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:50,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:50,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:50,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:50,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:50,426 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 528 [2022-11-20 09:29:50,428 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 417 places, 413 transitions, 851 flow. Second operand has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,429 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:50,429 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 528 [2022-11-20 09:29:50,429 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:50,823 INFO L130 PetriNetUnfolder]: 161/1312 cut-off events. [2022-11-20 09:29:50,823 INFO L131 PetriNetUnfolder]: For 146/151 co-relation queries the response was YES. [2022-11-20 09:29:50,831 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1656 conditions, 1312 events. 161/1312 cut-off events. For 146/151 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7077 event pairs, 80 based on Foata normal form. 0/1150 useless extension candidates. Maximal degree in co-relation 1619. Up to 216 conditions per place. [2022-11-20 09:29:50,839 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 21 selfloop transitions, 2 changer transitions 0/412 dead transitions. [2022-11-20 09:29:50,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 418 places, 412 transitions, 895 flow [2022-11-20 09:29:50,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:50,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1436 transitions. [2022-11-20 09:29:50,843 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9065656565656566 [2022-11-20 09:29:50,843 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1436 transitions. [2022-11-20 09:29:50,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1436 transitions. [2022-11-20 09:29:50,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:50,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1436 transitions. [2022-11-20 09:29:50,848 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 478.6666666666667) internal successors, (1436), 3 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,854 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,854 INFO L175 Difference]: Start difference. First operand has 417 places, 413 transitions, 851 flow. Second operand 3 states and 1436 transitions. [2022-11-20 09:29:50,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 418 places, 412 transitions, 895 flow [2022-11-20 09:29:50,857 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 413 places, 412 transitions, 885 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:29:50,863 INFO L231 Difference]: Finished difference. Result has 413 places, 412 transitions, 843 flow [2022-11-20 09:29:50,864 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=839, PETRI_DIFFERENCE_MINUEND_PLACES=411, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=843, PETRI_PLACES=413, PETRI_TRANSITIONS=412} [2022-11-20 09:29:50,865 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -51 predicate places. [2022-11-20 09:29:50,866 INFO L495 AbstractCegarLoop]: Abstraction has has 413 places, 412 transitions, 843 flow [2022-11-20 09:29:50,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 472.3333333333333) internal successors, (1417), 3 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,867 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:50,867 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:50,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 09:29:50,868 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:50,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:50,868 INFO L85 PathProgramCache]: Analyzing trace with hash -191147648, now seen corresponding path program 1 times [2022-11-20 09:29:50,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:50,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316916676] [2022-11-20 09:29:50,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:50,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:50,953 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 09:29:50,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:50,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316916676] [2022-11-20 09:29:50,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316916676] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:50,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:50,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:50,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764197369] [2022-11-20 09:29:50,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:50,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:50,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:50,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:50,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:50,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 477 out of 528 [2022-11-20 09:29:50,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 413 places, 412 transitions, 843 flow. Second operand has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:50,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:50,960 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 477 of 528 [2022-11-20 09:29:50,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:51,150 INFO L130 PetriNetUnfolder]: 39/554 cut-off events. [2022-11-20 09:29:51,150 INFO L131 PetriNetUnfolder]: For 30/35 co-relation queries the response was YES. [2022-11-20 09:29:51,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 554 events. 39/554 cut-off events. For 30/35 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1285 event pairs, 14 based on Foata normal form. 0/507 useless extension candidates. Maximal degree in co-relation 606. Up to 60 conditions per place. [2022-11-20 09:29:51,155 INFO L137 encePairwiseOnDemand]: 525/528 looper letters, 16 selfloop transitions, 2 changer transitions 0/411 dead transitions. [2022-11-20 09:29:51,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 414 places, 411 transitions, 877 flow [2022-11-20 09:29:51,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:51,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:51,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1449 transitions. [2022-11-20 09:29:51,160 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9147727272727273 [2022-11-20 09:29:51,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1449 transitions. [2022-11-20 09:29:51,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1449 transitions. [2022-11-20 09:29:51,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:51,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1449 transitions. [2022-11-20 09:29:51,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:51,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:51,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:51,169 INFO L175 Difference]: Start difference. First operand has 413 places, 412 transitions, 843 flow. Second operand 3 states and 1449 transitions. [2022-11-20 09:29:51,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 414 places, 411 transitions, 877 flow [2022-11-20 09:29:51,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 411 transitions, 873 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:51,178 INFO L231 Difference]: Finished difference. Result has 412 places, 411 transitions, 841 flow [2022-11-20 09:29:51,179 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=841, PETRI_PLACES=412, PETRI_TRANSITIONS=411} [2022-11-20 09:29:51,180 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -52 predicate places. [2022-11-20 09:29:51,180 INFO L495 AbstractCegarLoop]: Abstraction has has 412 places, 411 transitions, 841 flow [2022-11-20 09:29:51,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 478.3333333333333) internal successors, (1435), 3 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:51,181 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:51,181 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:51,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 09:29:51,182 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:51,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:51,182 INFO L85 PathProgramCache]: Analyzing trace with hash 354671610, now seen corresponding path program 1 times [2022-11-20 09:29:51,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:51,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788088124] [2022-11-20 09:29:51,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:51,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:51,271 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 09:29:51,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:51,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788088124] [2022-11-20 09:29:51,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788088124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:51,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:51,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:29:51,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372244937] [2022-11-20 09:29:51,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:51,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:29:51,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:51,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:29:51,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:29:51,275 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 528 [2022-11-20 09:29:51,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 412 places, 411 transitions, 841 flow. Second operand has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:51,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:51,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 528 [2022-11-20 09:29:51,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:51,732 INFO L130 PetriNetUnfolder]: 185/1617 cut-off events. [2022-11-20 09:29:51,733 INFO L131 PetriNetUnfolder]: For 97/105 co-relation queries the response was YES. [2022-11-20 09:29:51,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1944 conditions, 1617 events. 185/1617 cut-off events. For 97/105 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9763 event pairs, 51 based on Foata normal form. 0/1422 useless extension candidates. Maximal degree in co-relation 1908. Up to 137 conditions per place. [2022-11-20 09:29:51,748 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 27 selfloop transitions, 3 changer transitions 0/420 dead transitions. [2022-11-20 09:29:51,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 412 places, 420 transitions, 928 flow [2022-11-20 09:29:51,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:29:51,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:29:51,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1452 transitions. [2022-11-20 09:29:51,753 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2022-11-20 09:29:51,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1452 transitions. [2022-11-20 09:29:51,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1452 transitions. [2022-11-20 09:29:51,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:51,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1452 transitions. [2022-11-20 09:29:51,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.0) internal successors, (1452), 3 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:51,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:51,763 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:51,763 INFO L175 Difference]: Start difference. First operand has 412 places, 411 transitions, 841 flow. Second operand 3 states and 1452 transitions. [2022-11-20 09:29:51,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 412 places, 420 transitions, 928 flow [2022-11-20 09:29:51,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 410 places, 420 transitions, 924 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:29:51,772 INFO L231 Difference]: Finished difference. Result has 411 places, 411 transitions, 850 flow [2022-11-20 09:29:51,774 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=408, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=850, PETRI_PLACES=411, PETRI_TRANSITIONS=411} [2022-11-20 09:29:51,775 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -53 predicate places. [2022-11-20 09:29:51,776 INFO L495 AbstractCegarLoop]: Abstraction has has 411 places, 411 transitions, 850 flow [2022-11-20 09:29:51,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 475.6666666666667) internal successors, (1427), 3 states have internal predecessors, (1427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:51,777 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:51,777 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:51,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 09:29:51,777 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:51,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:51,778 INFO L85 PathProgramCache]: Analyzing trace with hash 66115616, now seen corresponding path program 1 times [2022-11-20 09:29:51,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:51,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97338055] [2022-11-20 09:29:51,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:51,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:52,115 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 09:29:52,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:52,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97338055] [2022-11-20 09:29:52,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97338055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:52,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:52,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:29:52,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814274986] [2022-11-20 09:29:52,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:52,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:29:52,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:52,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:29:52,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:29:52,124 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 392 out of 528 [2022-11-20 09:29:52,127 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 411 places, 411 transitions, 850 flow. Second operand has 7 states, 7 states have (on average 397.14285714285717) internal successors, (2780), 7 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:52,127 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:52,128 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 392 of 528 [2022-11-20 09:29:52,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:29:55,238 INFO L130 PetriNetUnfolder]: 5052/12147 cut-off events. [2022-11-20 09:29:55,238 INFO L131 PetriNetUnfolder]: For 858/950 co-relation queries the response was YES. [2022-11-20 09:29:55,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20664 conditions, 12147 events. 5052/12147 cut-off events. For 858/950 co-relation queries the response was YES. Maximal size of possible extension queue 303. Compared 101267 event pairs, 3443 based on Foata normal form. 1/9696 useless extension candidates. Maximal degree in co-relation 20626. Up to 6311 conditions per place. [2022-11-20 09:29:55,386 INFO L137 encePairwiseOnDemand]: 509/528 looper letters, 211 selfloop transitions, 28 changer transitions 0/549 dead transitions. [2022-11-20 09:29:55,387 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 549 transitions, 1636 flow [2022-11-20 09:29:55,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:29:55,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 09:29:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4548 transitions. [2022-11-20 09:29:55,397 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7830578512396694 [2022-11-20 09:29:55,398 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4548 transitions. [2022-11-20 09:29:55,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4548 transitions. [2022-11-20 09:29:55,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:29:55,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4548 transitions. [2022-11-20 09:29:55,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 413.45454545454544) internal successors, (4548), 11 states have internal predecessors, (4548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:55,419 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:55,422 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:55,422 INFO L175 Difference]: Start difference. First operand has 411 places, 411 transitions, 850 flow. Second operand 11 states and 4548 transitions. [2022-11-20 09:29:55,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 549 transitions, 1636 flow [2022-11-20 09:29:55,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 420 places, 549 transitions, 1633 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:29:55,434 INFO L231 Difference]: Finished difference. Result has 424 places, 428 transitions, 980 flow [2022-11-20 09:29:55,434 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=411, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=980, PETRI_PLACES=424, PETRI_TRANSITIONS=428} [2022-11-20 09:29:55,435 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -40 predicate places. [2022-11-20 09:29:55,435 INFO L495 AbstractCegarLoop]: Abstraction has has 424 places, 428 transitions, 980 flow [2022-11-20 09:29:55,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 397.14285714285717) internal successors, (2780), 7 states have internal predecessors, (2780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:55,436 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:29:55,436 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:29:55,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 09:29:55,437 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:29:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:29:55,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1405829606, now seen corresponding path program 1 times [2022-11-20 09:29:55,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:29:55,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099213285] [2022-11-20 09:29:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:29:55,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:29:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:29:56,212 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 09:29:56,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:29:56,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099213285] [2022-11-20 09:29:56,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099213285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:29:56,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:29:56,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:29:56,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844581529] [2022-11-20 09:29:56,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:29:56,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:29:56,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:29:56,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:29:56,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:29:56,217 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-20 09:29:56,220 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 428 transitions, 980 flow. Second operand has 6 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:29:56,220 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:29:56,220 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-20 09:29:56,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:00,874 INFO L130 PetriNetUnfolder]: 6676/14217 cut-off events. [2022-11-20 09:30:00,874 INFO L131 PetriNetUnfolder]: For 2786/2846 co-relation queries the response was YES. [2022-11-20 09:30:00,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26970 conditions, 14217 events. 6676/14217 cut-off events. For 2786/2846 co-relation queries the response was YES. Maximal size of possible extension queue 328. Compared 114761 event pairs, 2122 based on Foata normal form. 48/13059 useless extension candidates. Maximal degree in co-relation 26925. Up to 5895 conditions per place. [2022-11-20 09:30:01,024 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 209 selfloop transitions, 13 changer transitions 0/559 dead transitions. [2022-11-20 09:30:01,024 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 429 places, 559 transitions, 1705 flow [2022-11-20 09:30:01,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:01,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:30:01,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2594 transitions. [2022-11-20 09:30:01,031 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8188131313131313 [2022-11-20 09:30:01,031 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2594 transitions. [2022-11-20 09:30:01,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2594 transitions. [2022-11-20 09:30:01,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:01,033 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2594 transitions. [2022-11-20 09:30:01,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 432.3333333333333) internal successors, (2594), 6 states have internal predecessors, (2594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:01,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:01,046 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:01,046 INFO L175 Difference]: Start difference. First operand has 424 places, 428 transitions, 980 flow. Second operand 6 states and 2594 transitions. [2022-11-20 09:30:01,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 429 places, 559 transitions, 1705 flow [2022-11-20 09:30:01,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 427 places, 559 transitions, 1700 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 09:30:01,061 INFO L231 Difference]: Finished difference. Result has 432 places, 440 transitions, 1081 flow [2022-11-20 09:30:01,062 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=975, PETRI_DIFFERENCE_MINUEND_PLACES=422, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=428, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1081, PETRI_PLACES=432, PETRI_TRANSITIONS=440} [2022-11-20 09:30:01,063 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -32 predicate places. [2022-11-20 09:30:01,063 INFO L495 AbstractCegarLoop]: Abstraction has has 432 places, 440 transitions, 1081 flow [2022-11-20 09:30:01,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 401.3333333333333) internal successors, (2408), 6 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:01,064 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:01,064 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:01,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 09:30:01,065 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:30:01,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:01,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1319435839, now seen corresponding path program 1 times [2022-11-20 09:30:01,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:01,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276561156] [2022-11-20 09:30:01,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:01,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:30:01,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:01,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276561156] [2022-11-20 09:30:01,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276561156] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:01,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:01,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 09:30:01,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538372191] [2022-11-20 09:30:01,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:01,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 09:30:01,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:01,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 09:30:01,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:30:01,395 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 528 [2022-11-20 09:30:01,398 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 432 places, 440 transitions, 1081 flow. Second operand has 7 states, 7 states have (on average 424.7142857142857) internal successors, (2973), 7 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:01,399 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:01,399 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 528 [2022-11-20 09:30:01,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:04,076 INFO L130 PetriNetUnfolder]: 3139/7711 cut-off events. [2022-11-20 09:30:04,077 INFO L131 PetriNetUnfolder]: For 4294/4979 co-relation queries the response was YES. [2022-11-20 09:30:04,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14764 conditions, 7711 events. 3139/7711 cut-off events. For 4294/4979 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 58634 event pairs, 1719 based on Foata normal form. 39/6008 useless extension candidates. Maximal degree in co-relation 14717. Up to 3889 conditions per place. [2022-11-20 09:30:04,197 INFO L137 encePairwiseOnDemand]: 509/528 looper letters, 179 selfloop transitions, 28 changer transitions 0/551 dead transitions. [2022-11-20 09:30:04,197 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 551 transitions, 1749 flow [2022-11-20 09:30:04,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-20 09:30:04,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-11-20 09:30:04,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 4820 transitions. [2022-11-20 09:30:04,210 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8298898071625345 [2022-11-20 09:30:04,211 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 4820 transitions. [2022-11-20 09:30:04,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 4820 transitions. [2022-11-20 09:30:04,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:04,214 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 4820 transitions. [2022-11-20 09:30:04,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 438.1818181818182) internal successors, (4820), 11 states have internal predecessors, (4820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:04,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:04,241 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 528.0) internal successors, (6336), 12 states have internal predecessors, (6336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:04,242 INFO L175 Difference]: Start difference. First operand has 432 places, 440 transitions, 1081 flow. Second operand 11 states and 4820 transitions. [2022-11-20 09:30:04,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 551 transitions, 1749 flow [2022-11-20 09:30:04,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 551 transitions, 1749 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:30:04,261 INFO L231 Difference]: Finished difference. Result has 444 places, 442 transitions, 1149 flow [2022-11-20 09:30:04,261 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1081, PETRI_DIFFERENCE_MINUEND_PLACES=432, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=413, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1149, PETRI_PLACES=444, PETRI_TRANSITIONS=442} [2022-11-20 09:30:04,262 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -20 predicate places. [2022-11-20 09:30:04,262 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 442 transitions, 1149 flow [2022-11-20 09:30:04,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 424.7142857142857) internal successors, (2973), 7 states have internal predecessors, (2973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:04,264 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:04,264 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:30:04,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 09:30:04,264 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:30:04,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:04,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2047191116, now seen corresponding path program 1 times [2022-11-20 09:30:04,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:04,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403667858] [2022-11-20 09:30:04,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:04,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:05,264 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 09:30:05,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:05,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403667858] [2022-11-20 09:30:05,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403667858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:05,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:05,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:30:05,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077355233] [2022-11-20 09:30:05,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:05,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:30:05,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:05,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:30:05,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:05,270 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-20 09:30:05,273 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 442 transitions, 1149 flow. Second operand has 6 states, 6 states have (on average 402.3333333333333) internal successors, (2414), 6 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:05,274 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:05,274 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-20 09:30:05,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:09,546 INFO L130 PetriNetUnfolder]: 5873/15054 cut-off events. [2022-11-20 09:30:09,546 INFO L131 PetriNetUnfolder]: For 13951/14038 co-relation queries the response was YES. [2022-11-20 09:30:09,652 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32839 conditions, 15054 events. 5873/15054 cut-off events. For 13951/14038 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 140248 event pairs, 3463 based on Foata normal form. 12/13948 useless extension candidates. Maximal degree in co-relation 32787. Up to 7909 conditions per place. [2022-11-20 09:30:09,738 INFO L137 encePairwiseOnDemand]: 521/528 looper letters, 118 selfloop transitions, 17 changer transitions 0/474 dead transitions. [2022-11-20 09:30:09,738 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 449 places, 474 transitions, 1549 flow [2022-11-20 09:30:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:09,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:30:09,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2491 transitions. [2022-11-20 09:30:09,744 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7863005050505051 [2022-11-20 09:30:09,745 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2491 transitions. [2022-11-20 09:30:09,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2491 transitions. [2022-11-20 09:30:09,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:09,746 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2491 transitions. [2022-11-20 09:30:09,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 415.1666666666667) internal successors, (2491), 6 states have internal predecessors, (2491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:09,757 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:09,758 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:09,759 INFO L175 Difference]: Start difference. First operand has 444 places, 442 transitions, 1149 flow. Second operand 6 states and 2491 transitions. [2022-11-20 09:30:09,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 449 places, 474 transitions, 1549 flow [2022-11-20 09:30:09,783 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 444 places, 474 transitions, 1524 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 09:30:09,789 INFO L231 Difference]: Finished difference. Result has 449 places, 458 transitions, 1304 flow [2022-11-20 09:30:09,790 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1124, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=442, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=434, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1304, PETRI_PLACES=449, PETRI_TRANSITIONS=458} [2022-11-20 09:30:09,790 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -15 predicate places. [2022-11-20 09:30:09,790 INFO L495 AbstractCegarLoop]: Abstraction has has 449 places, 458 transitions, 1304 flow [2022-11-20 09:30:09,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 402.3333333333333) internal successors, (2414), 6 states have internal predecessors, (2414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:09,791 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:09,792 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:09,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 09:30:09,792 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:30:09,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:09,793 INFO L85 PathProgramCache]: Analyzing trace with hash 66612076, now seen corresponding path program 1 times [2022-11-20 09:30:09,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:09,793 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945436356] [2022-11-20 09:30:09,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:09,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:10,564 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 09:30:10,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:10,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945436356] [2022-11-20 09:30:10,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945436356] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:10,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:10,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:30:10,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268562634] [2022-11-20 09:30:10,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:10,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:30:10,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:10,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:30:10,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:10,569 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 528 [2022-11-20 09:30:10,572 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 449 places, 458 transitions, 1304 flow. Second operand has 6 states, 6 states have (on average 403.3333333333333) internal successors, (2420), 6 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:10,572 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:10,572 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 528 [2022-11-20 09:30:10,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:14,811 INFO L130 PetriNetUnfolder]: 5953/15203 cut-off events. [2022-11-20 09:30:14,811 INFO L131 PetriNetUnfolder]: For 19036/19159 co-relation queries the response was YES. [2022-11-20 09:30:14,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34957 conditions, 15203 events. 5953/15203 cut-off events. For 19036/19159 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 141568 event pairs, 3606 based on Foata normal form. 0/14108 useless extension candidates. Maximal degree in co-relation 34903. Up to 8233 conditions per place. [2022-11-20 09:30:15,483 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 122 selfloop transitions, 4 changer transitions 0/465 dead transitions. [2022-11-20 09:30:15,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 453 places, 465 transitions, 1570 flow [2022-11-20 09:30:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:30:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:30:15,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2474 transitions. [2022-11-20 09:30:15,496 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7809343434343434 [2022-11-20 09:30:15,511 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2474 transitions. [2022-11-20 09:30:15,511 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2474 transitions. [2022-11-20 09:30:15,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:15,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2474 transitions. [2022-11-20 09:30:15,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 412.3333333333333) internal successors, (2474), 6 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:15,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:15,523 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:15,523 INFO L175 Difference]: Start difference. First operand has 449 places, 458 transitions, 1304 flow. Second operand 6 states and 2474 transitions. [2022-11-20 09:30:15,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 453 places, 465 transitions, 1570 flow [2022-11-20 09:30:15,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 453 places, 465 transitions, 1570 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 09:30:15,570 INFO L231 Difference]: Finished difference. Result has 453 places, 457 transitions, 1310 flow [2022-11-20 09:30:15,571 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1302, PETRI_DIFFERENCE_MINUEND_PLACES=448, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1310, PETRI_PLACES=453, PETRI_TRANSITIONS=457} [2022-11-20 09:30:15,571 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -11 predicate places. [2022-11-20 09:30:15,572 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 457 transitions, 1310 flow [2022-11-20 09:30:15,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 403.3333333333333) internal successors, (2420), 6 states have internal predecessors, (2420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:15,573 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:15,573 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:15,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-20 09:30:15,573 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:30:15,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:15,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1916890360, now seen corresponding path program 1 times [2022-11-20 09:30:15,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:15,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396298506] [2022-11-20 09:30:15,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:15,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:15,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:16,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 09:30:16,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:16,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396298506] [2022-11-20 09:30:16,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396298506] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:16,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782181262] [2022-11-20 09:30:16,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:16,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:16,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:16,422 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:16,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 09:30:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:16,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:30:16,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:17,302 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 09:30:17,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:17,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 09:30:17,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782181262] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:30:17,888 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:30:17,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-20 09:30:17,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831500841] [2022-11-20 09:30:17,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:30:17,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 09:30:17,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:17,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 09:30:17,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-20 09:30:17,897 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 528 [2022-11-20 09:30:17,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 457 transitions, 1310 flow. Second operand has 19 states, 19 states have (on average 394.2631578947368) internal successors, (7491), 19 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:17,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:17,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 528 [2022-11-20 09:30:17,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:32,029 INFO L130 PetriNetUnfolder]: 19034/40595 cut-off events. [2022-11-20 09:30:32,029 INFO L131 PetriNetUnfolder]: For 52609/55304 co-relation queries the response was YES. [2022-11-20 09:30:32,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94241 conditions, 40595 events. 19034/40595 cut-off events. For 52609/55304 co-relation queries the response was YES. Maximal size of possible extension queue 1040. Compared 385922 event pairs, 10380 based on Foata normal form. 315/35482 useless extension candidates. Maximal degree in co-relation 94186. Up to 20549 conditions per place. [2022-11-20 09:30:32,491 INFO L137 encePairwiseOnDemand]: 499/528 looper letters, 359 selfloop transitions, 70 changer transitions 0/745 dead transitions. [2022-11-20 09:30:32,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 473 places, 745 transitions, 3419 flow [2022-11-20 09:30:32,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-20 09:30:32,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-11-20 09:30:32,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 8498 transitions. [2022-11-20 09:30:32,509 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7664141414141414 [2022-11-20 09:30:32,510 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 8498 transitions. [2022-11-20 09:30:32,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 8498 transitions. [2022-11-20 09:30:32,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:32,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 8498 transitions. [2022-11-20 09:30:32,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 404.6666666666667) internal successors, (8498), 21 states have internal predecessors, (8498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:32,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 528.0) internal successors, (11616), 22 states have internal predecessors, (11616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:32,546 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 528.0) internal successors, (11616), 22 states have internal predecessors, (11616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:32,546 INFO L175 Difference]: Start difference. First operand has 453 places, 457 transitions, 1310 flow. Second operand 21 states and 8498 transitions. [2022-11-20 09:30:32,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 473 places, 745 transitions, 3419 flow [2022-11-20 09:30:32,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 469 places, 745 transitions, 3412 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 09:30:32,695 INFO L231 Difference]: Finished difference. Result has 478 places, 498 transitions, 1738 flow [2022-11-20 09:30:32,696 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1303, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=457, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1738, PETRI_PLACES=478, PETRI_TRANSITIONS=498} [2022-11-20 09:30:32,696 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, 14 predicate places. [2022-11-20 09:30:32,696 INFO L495 AbstractCegarLoop]: Abstraction has has 478 places, 498 transitions, 1738 flow [2022-11-20 09:30:32,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 394.2631578947368) internal successors, (7491), 19 states have internal predecessors, (7491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:32,699 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:32,699 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:32,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:32,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-11-20 09:30:32,908 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:30:32,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:32,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2062875480, now seen corresponding path program 1 times [2022-11-20 09:30:32,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:32,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112447965] [2022-11-20 09:30:32,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:32,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:33,017 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 09:30:33,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:33,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112447965] [2022-11-20 09:30:33,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112447965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:33,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:33,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:30:33,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200832364] [2022-11-20 09:30:33,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:33,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:33,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:33,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:33,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:33,024 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 480 out of 528 [2022-11-20 09:30:33,025 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 478 places, 498 transitions, 1738 flow. Second operand has 3 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:33,025 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:33,025 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 480 of 528 [2022-11-20 09:30:33,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:34,145 INFO L130 PetriNetUnfolder]: 658/4102 cut-off events. [2022-11-20 09:30:34,145 INFO L131 PetriNetUnfolder]: For 4563/4672 co-relation queries the response was YES. [2022-11-20 09:30:34,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7685 conditions, 4102 events. 658/4102 cut-off events. For 4563/4672 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 26574 event pairs, 159 based on Foata normal form. 0/3874 useless extension candidates. Maximal degree in co-relation 7621. Up to 819 conditions per place. [2022-11-20 09:30:34,179 INFO L137 encePairwiseOnDemand]: 526/528 looper letters, 33 selfloop transitions, 1 changer transitions 0/497 dead transitions. [2022-11-20 09:30:34,179 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 479 places, 497 transitions, 1804 flow [2022-11-20 09:30:34,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:34,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:30:34,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1454 transitions. [2022-11-20 09:30:34,181 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9179292929292929 [2022-11-20 09:30:34,181 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1454 transitions. [2022-11-20 09:30:34,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1454 transitions. [2022-11-20 09:30:34,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:34,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1454 transitions. [2022-11-20 09:30:34,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 484.6666666666667) internal successors, (1454), 3 states have internal predecessors, (1454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:34,186 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:34,187 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:34,187 INFO L175 Difference]: Start difference. First operand has 478 places, 498 transitions, 1738 flow. Second operand 3 states and 1454 transitions. [2022-11-20 09:30:34,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 479 places, 497 transitions, 1804 flow [2022-11-20 09:30:34,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 497 transitions, 1747 flow, removed 20 selfloop flow, removed 3 redundant places. [2022-11-20 09:30:34,209 INFO L231 Difference]: Finished difference. Result has 476 places, 497 transitions, 1681 flow [2022-11-20 09:30:34,210 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1679, PETRI_DIFFERENCE_MINUEND_PLACES=474, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=497, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=496, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1681, PETRI_PLACES=476, PETRI_TRANSITIONS=497} [2022-11-20 09:30:34,211 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, 12 predicate places. [2022-11-20 09:30:34,211 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 497 transitions, 1681 flow [2022-11-20 09:30:34,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.3333333333333) internal successors, (1450), 3 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:34,211 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:34,212 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:30:34,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-20 09:30:34,212 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:30:34,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:34,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1745810879, now seen corresponding path program 1 times [2022-11-20 09:30:34,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:34,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640376841] [2022-11-20 09:30:34,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:34,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:34,315 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 09:30:34,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:34,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640376841] [2022-11-20 09:30:34,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640376841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:34,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:34,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:30:34,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648024609] [2022-11-20 09:30:34,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:34,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 09:30:34,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:34,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 09:30:34,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 09:30:34,319 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 474 out of 528 [2022-11-20 09:30:34,320 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 497 transitions, 1681 flow. Second operand has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:34,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:34,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 474 of 528 [2022-11-20 09:30:34,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:37,534 INFO L130 PetriNetUnfolder]: 1754/9997 cut-off events. [2022-11-20 09:30:37,534 INFO L131 PetriNetUnfolder]: For 10349/10451 co-relation queries the response was YES. [2022-11-20 09:30:37,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18326 conditions, 9997 events. 1754/9997 cut-off events. For 10349/10451 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 93823 event pairs, 375 based on Foata normal form. 15/9201 useless extension candidates. Maximal degree in co-relation 18265. Up to 1406 conditions per place. [2022-11-20 09:30:37,633 INFO L137 encePairwiseOnDemand]: 523/528 looper letters, 63 selfloop transitions, 2 changer transitions 30/526 dead transitions. [2022-11-20 09:30:37,633 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 526 transitions, 2056 flow [2022-11-20 09:30:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 09:30:37,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 09:30:37,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1451 transitions. [2022-11-20 09:30:37,636 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9160353535353535 [2022-11-20 09:30:37,636 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1451 transitions. [2022-11-20 09:30:37,636 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1451 transitions. [2022-11-20 09:30:37,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:37,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1451 transitions. [2022-11-20 09:30:37,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 483.6666666666667) internal successors, (1451), 3 states have internal predecessors, (1451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:37,641 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:37,642 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:37,642 INFO L175 Difference]: Start difference. First operand has 476 places, 497 transitions, 1681 flow. Second operand 3 states and 1451 transitions. [2022-11-20 09:30:37,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 526 transitions, 2056 flow [2022-11-20 09:30:37,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 475 places, 526 transitions, 2055 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 09:30:37,672 INFO L231 Difference]: Finished difference. Result has 476 places, 468 transitions, 1498 flow [2022-11-20 09:30:37,673 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1676, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=495, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1498, PETRI_PLACES=476, PETRI_TRANSITIONS=468} [2022-11-20 09:30:37,673 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, 12 predicate places. [2022-11-20 09:30:37,674 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 468 transitions, 1498 flow [2022-11-20 09:30:37,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 477.3333333333333) internal successors, (1432), 3 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:37,674 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:37,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:30:37,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-20 09:30:37,675 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:30:37,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:37,676 INFO L85 PathProgramCache]: Analyzing trace with hash 628616735, now seen corresponding path program 1 times [2022-11-20 09:30:37,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:37,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133582048] [2022-11-20 09:30:37,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:37,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:38,106 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 09:30:38,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:38,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133582048] [2022-11-20 09:30:38,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133582048] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 09:30:38,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402912880] [2022-11-20 09:30:38,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:38,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 09:30:38,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:30:38,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 09:30:38,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 09:30:38,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:38,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-20 09:30:38,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 09:30:39,002 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 09:30:39,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 09:30:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 09:30:39,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402912880] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 09:30:39,688 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 09:30:39,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-11-20 09:30:39,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991753040] [2022-11-20 09:30:39,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 09:30:39,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-20 09:30:39,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:39,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-20 09:30:39,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2022-11-20 09:30:39,698 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 417 out of 528 [2022-11-20 09:30:39,705 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 468 transitions, 1498 flow. Second operand has 19 states, 19 states have (on average 422.10526315789474) internal successors, (8020), 19 states have internal predecessors, (8020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:39,705 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:39,705 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 417 of 528 [2022-11-20 09:30:39,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:45,408 INFO L130 PetriNetUnfolder]: 6420/15054 cut-off events. [2022-11-20 09:30:45,408 INFO L131 PetriNetUnfolder]: For 22897/24658 co-relation queries the response was YES. [2022-11-20 09:30:45,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36400 conditions, 15054 events. 6420/15054 cut-off events. For 22897/24658 co-relation queries the response was YES. Maximal size of possible extension queue 923. Compared 132195 event pairs, 2849 based on Foata normal form. 283/12385 useless extension candidates. Maximal degree in co-relation 36337. Up to 6645 conditions per place. [2022-11-20 09:30:45,632 INFO L137 encePairwiseOnDemand]: 499/528 looper letters, 130 selfloop transitions, 30 changer transitions 121/614 dead transitions. [2022-11-20 09:30:45,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 614 transitions, 2461 flow [2022-11-20 09:30:45,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-20 09:30:45,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-11-20 09:30:45,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 8600 transitions. [2022-11-20 09:30:45,646 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8143939393939394 [2022-11-20 09:30:45,646 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 8600 transitions. [2022-11-20 09:30:45,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 8600 transitions. [2022-11-20 09:30:45,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:30:45,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 8600 transitions. [2022-11-20 09:30:45,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 430.0) internal successors, (8600), 20 states have internal predecessors, (8600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:45,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 528.0) internal successors, (11088), 21 states have internal predecessors, (11088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:45,686 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 528.0) internal successors, (11088), 21 states have internal predecessors, (11088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:45,686 INFO L175 Difference]: Start difference. First operand has 476 places, 468 transitions, 1498 flow. Second operand 20 states and 8600 transitions. [2022-11-20 09:30:45,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 614 transitions, 2461 flow [2022-11-20 09:30:45,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 614 transitions, 2376 flow, removed 11 selfloop flow, removed 9 redundant places. [2022-11-20 09:30:45,732 INFO L231 Difference]: Finished difference. Result has 472 places, 443 transitions, 1356 flow [2022-11-20 09:30:45,733 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1421, PETRI_DIFFERENCE_MINUEND_PLACES=449, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=468, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=438, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1356, PETRI_PLACES=472, PETRI_TRANSITIONS=443} [2022-11-20 09:30:45,733 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, 8 predicate places. [2022-11-20 09:30:45,734 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 443 transitions, 1356 flow [2022-11-20 09:30:45,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 422.10526315789474) internal successors, (8020), 19 states have internal predecessors, (8020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:45,736 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:30:45,737 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:30:45,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 09:30:45,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2139c2d2-a820-4fbe-aa7b-8a4d5408646c/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-11-20 09:30:45,951 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:30:45,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:30:45,951 INFO L85 PathProgramCache]: Analyzing trace with hash -2023999888, now seen corresponding path program 2 times [2022-11-20 09:30:45,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:30:45,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038076535] [2022-11-20 09:30:45,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:30:45,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:30:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:30:47,269 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-11-20 09:30:47,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:30:47,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038076535] [2022-11-20 09:30:47,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038076535] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:30:47,270 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:30:47,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:30:47,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437024130] [2022-11-20 09:30:47,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:30:47,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:30:47,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:30:47,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:30:47,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:30:47,274 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 528 [2022-11-20 09:30:47,277 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 443 transitions, 1356 flow. Second operand has 6 states, 6 states have (on average 397.0) internal successors, (2382), 6 states have internal predecessors, (2382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:30:47,277 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 09:30:47,277 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 528 [2022-11-20 09:30:47,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 09:30:59,464 INFO L130 PetriNetUnfolder]: 16506/38881 cut-off events. [2022-11-20 09:30:59,464 INFO L131 PetriNetUnfolder]: For 53001/54465 co-relation queries the response was YES. [2022-11-20 09:31:00,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97249 conditions, 38881 events. 16506/38881 cut-off events. For 53001/54465 co-relation queries the response was YES. Maximal size of possible extension queue 993. Compared 419603 event pairs, 3318 based on Foata normal form. 72/37365 useless extension candidates. Maximal degree in co-relation 97184. Up to 14982 conditions per place. [2022-11-20 09:31:00,168 INFO L137 encePairwiseOnDemand]: 514/528 looper letters, 200 selfloop transitions, 51 changer transitions 0/568 dead transitions. [2022-11-20 09:31:00,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 459 places, 568 transitions, 2484 flow [2022-11-20 09:31:00,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:31:00,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 09:31:00,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2506 transitions. [2022-11-20 09:31:00,174 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7910353535353535 [2022-11-20 09:31:00,174 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2506 transitions. [2022-11-20 09:31:00,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2506 transitions. [2022-11-20 09:31:00,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 09:31:00,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2506 transitions. [2022-11-20 09:31:00,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 417.6666666666667) internal successors, (2506), 6 states have internal predecessors, (2506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:00,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:00,184 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:00,184 INFO L175 Difference]: Start difference. First operand has 472 places, 443 transitions, 1356 flow. Second operand 6 states and 2506 transitions. [2022-11-20 09:31:00,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 459 places, 568 transitions, 2484 flow [2022-11-20 09:31:01,622 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 441 places, 568 transitions, 2411 flow, removed 13 selfloop flow, removed 18 redundant places. [2022-11-20 09:31:01,627 INFO L231 Difference]: Finished difference. Result has 446 places, 493 transitions, 1879 flow [2022-11-20 09:31:01,628 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=436, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=443, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1879, PETRI_PLACES=446, PETRI_TRANSITIONS=493} [2022-11-20 09:31:01,629 INFO L288 CegarLoopForPetriNet]: 464 programPoint places, -18 predicate places. [2022-11-20 09:31:01,629 INFO L495 AbstractCegarLoop]: Abstraction has has 446 places, 493 transitions, 1879 flow [2022-11-20 09:31:01,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.0) internal successors, (2382), 6 states have internal predecessors, (2382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:31:01,630 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 09:31:01,630 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:31:01,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-20 09:31:01,631 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 86 more)] === [2022-11-20 09:31:01,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:31:01,631 INFO L85 PathProgramCache]: Analyzing trace with hash 139829661, now seen corresponding path program 1 times [2022-11-20 09:31:01,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:31:01,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117762082] [2022-11-20 09:31:01,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:31:01,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:31:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat