./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 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_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8 --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 362fd638a164593c63fbfc307f633b7ac4c475762218e6a2237e90d5b6553a84 --- 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-2329fc7 [2022-12-13 22:17:35,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:17:35,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:17:35,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:17:35,103 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:17:35,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:17:35,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:17:35,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:17:35,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:17:35,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:17:35,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:17:35,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:17:35,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:17:35,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:17:35,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:17:35,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:17:35,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:17:35,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:17:35,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:17:35,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:17:35,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:17:35,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:17:35,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:17:35,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:17:35,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:17:35,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:17:35,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:17:35,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:17:35,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:17:35,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:17:35,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:17:35,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:17:35,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:17:35,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:17:35,132 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:17:35,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:17:35,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:17:35,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:17:35,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:17:35,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:17:35,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:17:35,135 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 22:17:35,155 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:17:35,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:17:35,155 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:17:35,155 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:17:35,156 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:17:35,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:17:35,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:17:35,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:17:35,164 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:17:35,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:17:35,165 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:17:35,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:17:35,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:17:35,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:17:35,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:17:35,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:17:35,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:17:35,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:17:35,166 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 22:17:35,166 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:17:35,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:17:35,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:17:35,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:17:35,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:17:35,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:17:35,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:17:35,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:17:35,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:17:35,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:17:35,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:17:35,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:17:35,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:17:35,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:17:35,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:17:35,169 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:17:35,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:17:35,169 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:17:35,169 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 362fd638a164593c63fbfc307f633b7ac4c475762218e6a2237e90d5b6553a84 [2022-12-13 22:17:35,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:17:35,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:17:35,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:17:35,363 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:17:35,363 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:17:35,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c [2022-12-13 22:17:37,991 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:17:38,119 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:17:38,119 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c [2022-12-13 22:17:38,124 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/data/62f312bf0/15dbf7bbecf142d9b65adc269e6fb041/FLAGdcb911804 [2022-12-13 22:17:38,134 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/data/62f312bf0/15dbf7bbecf142d9b65adc269e6fb041 [2022-12-13 22:17:38,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:17:38,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:17:38,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:17:38,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:17:38,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:17:38,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@548782b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38, skipping insertion in model container [2022-12-13 22:17:38,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:17:38,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:17:38,331 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_a1f19927-e26c-46d3-9071-7ac25ac5d509/sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c[2434,2447] [2022-12-13 22:17:38,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:17:38,347 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:17:38,378 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_a1f19927-e26c-46d3-9071-7ac25ac5d509/sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c[2434,2447] [2022-12-13 22:17:38,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:17:38,397 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:17:38,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38 WrapperNode [2022-12-13 22:17:38,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:17:38,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:17:38,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:17:38,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:17:38,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,442 INFO L138 Inliner]: procedures = 24, calls = 37, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 173 [2022-12-13 22:17:38,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:17:38,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:17:38,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:17:38,444 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:17:38,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,477 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:17:38,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:17:38,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:17:38,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:17:38,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (1/1) ... [2022-12-13 22:17:38,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:17:38,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:17:38,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:17:38,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:17:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:17:38,546 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 22:17:38,546 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 22:17:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 22:17:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 22:17:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 22:17:38,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 22:17:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:17:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:17:38,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:17:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 22:17:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:17:38,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:17:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 22:17:38,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:17:38,550 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 22:17:38,630 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:17:38,632 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:17:38,985 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:17:38,995 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:17:38,996 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 22:17:38,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:17:38 BoogieIcfgContainer [2022-12-13 22:17:38,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:17:39,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:17:39,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:17:39,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:17:39,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:17:38" (1/3) ... [2022-12-13 22:17:39,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734377b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:17:39, skipping insertion in model container [2022-12-13 22:17:39,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:17:38" (2/3) ... [2022-12-13 22:17:39,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@734377b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:17:39, skipping insertion in model container [2022-12-13 22:17:39,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:17:38" (3/3) ... [2022-12-13 22:17:39,006 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-sorted.wvr.c [2022-12-13 22:17:39,012 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 22:17:39,020 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:17:39,020 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2022-12-13 22:17:39,020 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 22:17:39,115 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-12-13 22:17:39,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 353 places, 360 transitions, 744 flow [2022-12-13 22:17:39,235 INFO L130 PetriNetUnfolder]: 17/357 cut-off events. [2022-12-13 22:17:39,235 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 22:17:39,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 370 conditions, 357 events. 17/357 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 719 event pairs, 0 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 247. Up to 2 conditions per place. [2022-12-13 22:17:39,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 353 places, 360 transitions, 744 flow [2022-12-13 22:17:39,247 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 329 places, 334 transitions, 686 flow [2022-12-13 22:17:39,250 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:17:39,258 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 329 places, 334 transitions, 686 flow [2022-12-13 22:17:39,260 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 329 places, 334 transitions, 686 flow [2022-12-13 22:17:39,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 329 places, 334 transitions, 686 flow [2022-12-13 22:17:39,312 INFO L130 PetriNetUnfolder]: 15/334 cut-off events. [2022-12-13 22:17:39,313 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 22:17:39,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 334 events. 15/334 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 703 event pairs, 0 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 247. Up to 2 conditions per place. [2022-12-13 22:17:39,320 INFO L119 LiptonReduction]: Number of co-enabled transitions 21474 [2022-12-13 22:17:45,601 INFO L134 LiptonReduction]: Checked pairs total: 137983 [2022-12-13 22:17:45,602 INFO L136 LiptonReduction]: Total number of compositions: 292 [2022-12-13 22:17:45,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:17:45,616 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;@6bb6050f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:17:45,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2022-12-13 22:17:45,617 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 22:17:45,618 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:17:45,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:45,618 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 22:17:45,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:45,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:45,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1253, now seen corresponding path program 1 times [2022-12-13 22:17:45,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:45,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194367164] [2022-12-13 22:17:45,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:45,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:45,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:45,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:45,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194367164] [2022-12-13 22:17:45,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194367164] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:17:45,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:17:45,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 22:17:45,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158835465] [2022-12-13 22:17:45,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:17:45,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:17:45,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:45,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:17:45,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:17:45,727 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 652 [2022-12-13 22:17:45,729 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 133 transitions, 284 flow. Second operand has 2 states, 2 states have (on average 345.5) internal successors, (691), 2 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:45,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:45,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 652 [2022-12-13 22:17:45,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:17:46,307 INFO L130 PetriNetUnfolder]: 2574/7161 cut-off events. [2022-12-13 22:17:46,307 INFO L131 PetriNetUnfolder]: For 193/193 co-relation queries the response was YES. [2022-12-13 22:17:46,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10653 conditions, 7161 events. 2574/7161 cut-off events. For 193/193 co-relation queries the response was YES. Maximal size of possible extension queue 382. Compared 72168 event pairs, 1475 based on Foata normal form. 549/5804 useless extension candidates. Maximal degree in co-relation 9351. Up to 3345 conditions per place. [2022-12-13 22:17:46,346 INFO L137 encePairwiseOnDemand]: 630/652 looper letters, 34 selfloop transitions, 0 changer transitions 1/111 dead transitions. [2022-12-13 22:17:46,346 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 111 transitions, 310 flow [2022-12-13 22:17:46,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:17:46,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 22:17:46,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 747 transitions. [2022-12-13 22:17:46,361 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5728527607361963 [2022-12-13 22:17:46,362 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 747 transitions. [2022-12-13 22:17:46,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 747 transitions. [2022-12-13 22:17:46,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:17:46,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 747 transitions. [2022-12-13 22:17:46,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 373.5) internal successors, (747), 2 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:46,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 652.0) internal successors, (1956), 3 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:46,377 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 652.0) internal successors, (1956), 3 states have internal predecessors, (1956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:46,378 INFO L175 Difference]: Start difference. First operand has 133 places, 133 transitions, 284 flow. Second operand 2 states and 747 transitions. [2022-12-13 22:17:46,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 111 transitions, 310 flow [2022-12-13 22:17:46,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 111 transitions, 298 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 22:17:46,384 INFO L231 Difference]: Finished difference. Result has 109 places, 110 transitions, 225 flow [2022-12-13 22:17:46,386 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=225, PETRI_PLACES=109, PETRI_TRANSITIONS=110} [2022-12-13 22:17:46,388 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -24 predicate places. [2022-12-13 22:17:46,389 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 110 transitions, 225 flow [2022-12-13 22:17:46,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 345.5) internal successors, (691), 2 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:46,389 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:46,389 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 22:17:46,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:17:46,390 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:46,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:46,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1440315725, now seen corresponding path program 1 times [2022-12-13 22:17:46,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:46,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749082197] [2022-12-13 22:17:46,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:46,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:46,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:46,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:46,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749082197] [2022-12-13 22:17:46,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749082197] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:17:46,469 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:17:46,469 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:17:46,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392860433] [2022-12-13 22:17:46,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:17:46,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:17:46,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:46,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:17:46,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:17:46,489 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 652 [2022-12-13 22:17:46,490 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 110 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 333.6666666666667) internal successors, (1001), 3 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:46,490 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:46,490 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 652 [2022-12-13 22:17:46,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:17:47,024 INFO L130 PetriNetUnfolder]: 2991/6946 cut-off events. [2022-12-13 22:17:47,024 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-12-13 22:17:47,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10969 conditions, 6946 events. 2991/6946 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 359. Compared 61392 event pairs, 1922 based on Foata normal form. 0/5144 useless extension candidates. Maximal degree in co-relation 10966. Up to 3970 conditions per place. [2022-12-13 22:17:47,074 INFO L137 encePairwiseOnDemand]: 649/652 looper letters, 35 selfloop transitions, 1 changer transitions 0/108 dead transitions. [2022-12-13 22:17:47,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 108 transitions, 293 flow [2022-12-13 22:17:47,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:17:47,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:17:47,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1034 transitions. [2022-12-13 22:17:47,076 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5286298568507157 [2022-12-13 22:17:47,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1034 transitions. [2022-12-13 22:17:47,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1034 transitions. [2022-12-13 22:17:47,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:17:47,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1034 transitions. [2022-12-13 22:17:47,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.6666666666667) internal successors, (1034), 3 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:47,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:47,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:47,082 INFO L175 Difference]: Start difference. First operand has 109 places, 110 transitions, 225 flow. Second operand 3 states and 1034 transitions. [2022-12-13 22:17:47,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 108 transitions, 293 flow [2022-12-13 22:17:47,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 108 transitions, 293 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 22:17:47,083 INFO L231 Difference]: Finished difference. Result has 108 places, 108 transitions, 223 flow [2022-12-13 22:17:47,084 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=108, PETRI_TRANSITIONS=108} [2022-12-13 22:17:47,084 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -25 predicate places. [2022-12-13 22:17:47,084 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 108 transitions, 223 flow [2022-12-13 22:17:47,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.6666666666667) internal successors, (1001), 3 states have internal predecessors, (1001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:47,085 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:47,085 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:17:47,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:17:47,085 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:47,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:47,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1163604699, now seen corresponding path program 1 times [2022-12-13 22:17:47,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:47,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456021844] [2022-12-13 22:17:47,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:47,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:47,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:47,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:47,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:47,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456021844] [2022-12-13 22:17:47,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456021844] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:17:47,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:17:47,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:17:47,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432419449] [2022-12-13 22:17:47,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:17:47,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:17:47,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:47,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:17:47,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:17:47,160 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 652 [2022-12-13 22:17:47,161 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 108 transitions, 223 flow. Second operand has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:47,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:47,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 652 [2022-12-13 22:17:47,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:17:48,352 INFO L130 PetriNetUnfolder]: 7462/15869 cut-off events. [2022-12-13 22:17:48,352 INFO L131 PetriNetUnfolder]: For 127/127 co-relation queries the response was YES. [2022-12-13 22:17:48,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25816 conditions, 15869 events. 7462/15869 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 148923 event pairs, 1402 based on Foata normal form. 0/12471 useless extension candidates. Maximal degree in co-relation 25812. Up to 8364 conditions per place. [2022-12-13 22:17:48,410 INFO L137 encePairwiseOnDemand]: 643/652 looper letters, 64 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2022-12-13 22:17:48,410 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 127 transitions, 399 flow [2022-12-13 22:17:48,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:17:48,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:17:48,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1051 transitions. [2022-12-13 22:17:48,412 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.537321063394683 [2022-12-13 22:17:48,412 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1051 transitions. [2022-12-13 22:17:48,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1051 transitions. [2022-12-13 22:17:48,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:17:48,413 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1051 transitions. [2022-12-13 22:17:48,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.3333333333333) internal successors, (1051), 3 states have internal predecessors, (1051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:48,417 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:48,418 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:48,418 INFO L175 Difference]: Start difference. First operand has 108 places, 108 transitions, 223 flow. Second operand 3 states and 1051 transitions. [2022-12-13 22:17:48,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 127 transitions, 399 flow [2022-12-13 22:17:48,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 127 transitions, 398 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 22:17:48,420 INFO L231 Difference]: Finished difference. Result has 104 places, 105 transitions, 231 flow [2022-12-13 22:17:48,420 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=104, PETRI_TRANSITIONS=105} [2022-12-13 22:17:48,421 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -29 predicate places. [2022-12-13 22:17:48,421 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 105 transitions, 231 flow [2022-12-13 22:17:48,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 328.0) internal successors, (984), 3 states have internal predecessors, (984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:48,421 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:48,421 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:17:48,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:17:48,422 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:48,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:48,422 INFO L85 PathProgramCache]: Analyzing trace with hash -815973981, now seen corresponding path program 1 times [2022-12-13 22:17:48,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:48,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222409210] [2022-12-13 22:17:48,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:48,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:48,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:48,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:48,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222409210] [2022-12-13 22:17:48,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222409210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:17:48,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:17:48,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:17:48,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251783373] [2022-12-13 22:17:48,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:17:48,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:17:48,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:48,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:17:48,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:17:48,494 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 652 [2022-12-13 22:17:48,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 105 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:48,496 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:48,496 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 652 [2022-12-13 22:17:48,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:17:49,099 INFO L130 PetriNetUnfolder]: 4562/9251 cut-off events. [2022-12-13 22:17:49,099 INFO L131 PetriNetUnfolder]: For 502/502 co-relation queries the response was YES. [2022-12-13 22:17:49,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16261 conditions, 9251 events. 4562/9251 cut-off events. For 502/502 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 74456 event pairs, 2803 based on Foata normal form. 0/6949 useless extension candidates. Maximal degree in co-relation 16257. Up to 6059 conditions per place. [2022-12-13 22:17:49,131 INFO L137 encePairwiseOnDemand]: 649/652 looper letters, 38 selfloop transitions, 1 changer transitions 0/103 dead transitions. [2022-12-13 22:17:49,131 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 103 transitions, 305 flow [2022-12-13 22:17:49,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:17:49,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:17:49,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1034 transitions. [2022-12-13 22:17:49,133 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5286298568507157 [2022-12-13 22:17:49,134 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1034 transitions. [2022-12-13 22:17:49,134 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1034 transitions. [2022-12-13 22:17:49,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:17:49,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1034 transitions. [2022-12-13 22:17:49,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 344.6666666666667) internal successors, (1034), 3 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:49,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:49,139 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:49,139 INFO L175 Difference]: Start difference. First operand has 104 places, 105 transitions, 231 flow. Second operand 3 states and 1034 transitions. [2022-12-13 22:17:49,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 103 transitions, 305 flow [2022-12-13 22:17:49,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 103 transitions, 305 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 22:17:49,160 INFO L231 Difference]: Finished difference. Result has 104 places, 103 transitions, 229 flow [2022-12-13 22:17:49,160 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=104, PETRI_TRANSITIONS=103} [2022-12-13 22:17:49,161 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -29 predicate places. [2022-12-13 22:17:49,161 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 103 transitions, 229 flow [2022-12-13 22:17:49,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.3333333333333) internal successors, (1003), 3 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:49,162 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:49,162 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:17:49,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 22:17:49,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:49,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:49,163 INFO L85 PathProgramCache]: Analyzing trace with hash 474621641, now seen corresponding path program 1 times [2022-12-13 22:17:49,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:49,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572908540] [2022-12-13 22:17:49,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:49,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:49,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:49,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:49,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572908540] [2022-12-13 22:17:49,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572908540] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:17:49,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:17:49,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:17:49,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190462728] [2022-12-13 22:17:49,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:17:49,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:17:49,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:49,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:17:49,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:17:49,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 652 [2022-12-13 22:17:49,229 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 103 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:49,229 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:49,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 652 [2022-12-13 22:17:49,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:17:49,961 INFO L130 PetriNetUnfolder]: 3846/8450 cut-off events. [2022-12-13 22:17:49,961 INFO L131 PetriNetUnfolder]: For 479/479 co-relation queries the response was YES. [2022-12-13 22:17:49,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14213 conditions, 8450 events. 3846/8450 cut-off events. For 479/479 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 73049 event pairs, 1644 based on Foata normal form. 0/6128 useless extension candidates. Maximal degree in co-relation 14208. Up to 3899 conditions per place. [2022-12-13 22:17:50,002 INFO L137 encePairwiseOnDemand]: 648/652 looper letters, 56 selfloop transitions, 3 changer transitions 0/124 dead transitions. [2022-12-13 22:17:50,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 124 transitions, 401 flow [2022-12-13 22:17:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:17:50,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:17:50,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1066 transitions. [2022-12-13 22:17:50,004 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5449897750511248 [2022-12-13 22:17:50,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1066 transitions. [2022-12-13 22:17:50,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1066 transitions. [2022-12-13 22:17:50,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:17:50,005 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1066 transitions. [2022-12-13 22:17:50,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 355.3333333333333) internal successors, (1066), 3 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:50,010 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:50,010 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:50,010 INFO L175 Difference]: Start difference. First operand has 104 places, 103 transitions, 229 flow. Second operand 3 states and 1066 transitions. [2022-12-13 22:17:50,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 124 transitions, 401 flow [2022-12-13 22:17:50,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 124 transitions, 400 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 22:17:50,013 INFO L231 Difference]: Finished difference. Result has 104 places, 102 transitions, 232 flow [2022-12-13 22:17:50,013 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2022-12-13 22:17:50,014 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -29 predicate places. [2022-12-13 22:17:50,014 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 232 flow [2022-12-13 22:17:50,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 339.3333333333333) internal successors, (1018), 3 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:50,014 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:50,014 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:17:50,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 22:17:50,015 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:50,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:50,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1385321965, now seen corresponding path program 1 times [2022-12-13 22:17:50,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:50,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129784840] [2022-12-13 22:17:50,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:50,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:50,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:50,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129784840] [2022-12-13 22:17:50,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129784840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:17:50,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:17:50,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:17:50,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996263120] [2022-12-13 22:17:50,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:17:50,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:17:50,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:50,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:17:50,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:17:50,190 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 652 [2022-12-13 22:17:50,192 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 342.6666666666667) internal successors, (1028), 3 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:50,192 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:50,192 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 652 [2022-12-13 22:17:50,192 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:17:50,752 INFO L130 PetriNetUnfolder]: 3846/8775 cut-off events. [2022-12-13 22:17:50,752 INFO L131 PetriNetUnfolder]: For 1137/1137 co-relation queries the response was YES. [2022-12-13 22:17:50,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15237 conditions, 8775 events. 3846/8775 cut-off events. For 1137/1137 co-relation queries the response was YES. Maximal size of possible extension queue 347. Compared 78884 event pairs, 2043 based on Foata normal form. 0/6786 useless extension candidates. Maximal degree in co-relation 15232. Up to 4980 conditions per place. [2022-12-13 22:17:50,784 INFO L137 encePairwiseOnDemand]: 649/652 looper letters, 36 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2022-12-13 22:17:50,784 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 103 transitions, 310 flow [2022-12-13 22:17:50,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 22:17:50,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 22:17:50,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1056 transitions. [2022-12-13 22:17:50,786 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5398773006134969 [2022-12-13 22:17:50,786 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1056 transitions. [2022-12-13 22:17:50,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1056 transitions. [2022-12-13 22:17:50,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:17:50,787 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1056 transitions. [2022-12-13 22:17:50,788 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 352.0) internal successors, (1056), 3 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:50,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:50,791 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 652.0) internal successors, (2608), 4 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:50,791 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 232 flow. Second operand 3 states and 1056 transitions. [2022-12-13 22:17:50,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 103 transitions, 310 flow [2022-12-13 22:17:50,798 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 103 transitions, 304 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 22:17:50,799 INFO L231 Difference]: Finished difference. Result has 105 places, 103 transitions, 238 flow [2022-12-13 22:17:50,799 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=105, PETRI_TRANSITIONS=103} [2022-12-13 22:17:50,800 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -28 predicate places. [2022-12-13 22:17:50,800 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 103 transitions, 238 flow [2022-12-13 22:17:50,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.6666666666667) internal successors, (1028), 3 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:50,800 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:50,801 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:17:50,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 22:17:50,801 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:50,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:50,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1299516027, now seen corresponding path program 1 times [2022-12-13 22:17:50,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:50,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844518205] [2022-12-13 22:17:50,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:50,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:51,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:17:51,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:51,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844518205] [2022-12-13 22:17:51,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844518205] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:17:51,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:17:51,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:17:51,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787331833] [2022-12-13 22:17:51,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:17:51,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:17:51,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:51,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:17:51,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:17:51,441 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 652 [2022-12-13 22:17:51,443 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 103 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 334.1666666666667) internal successors, (2005), 6 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:51,443 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:51,443 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 652 [2022-12-13 22:17:51,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:17:52,411 INFO L130 PetriNetUnfolder]: 10770/15422 cut-off events. [2022-12-13 22:17:52,411 INFO L131 PetriNetUnfolder]: For 1270/1270 co-relation queries the response was YES. [2022-12-13 22:17:52,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30892 conditions, 15422 events. 10770/15422 cut-off events. For 1270/1270 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 94399 event pairs, 789 based on Foata normal form. 0/10259 useless extension candidates. Maximal degree in co-relation 30886. Up to 4880 conditions per place. [2022-12-13 22:17:52,457 INFO L137 encePairwiseOnDemand]: 647/652 looper letters, 134 selfloop transitions, 4 changer transitions 0/198 dead transitions. [2022-12-13 22:17:52,458 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 198 transitions, 764 flow [2022-12-13 22:17:52,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:17:52,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 22:17:52,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2115 transitions. [2022-12-13 22:17:52,461 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5406441717791411 [2022-12-13 22:17:52,461 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2115 transitions. [2022-12-13 22:17:52,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2115 transitions. [2022-12-13 22:17:52,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:17:52,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2115 transitions. [2022-12-13 22:17:52,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 352.5) internal successors, (2115), 6 states have internal predecessors, (2115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:52,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:52,469 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:52,469 INFO L175 Difference]: Start difference. First operand has 105 places, 103 transitions, 238 flow. Second operand 6 states and 2115 transitions. [2022-12-13 22:17:52,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 198 transitions, 764 flow [2022-12-13 22:17:52,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 198 transitions, 760 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 22:17:52,472 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 240 flow [2022-12-13 22:17:52,472 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=240, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2022-12-13 22:17:52,472 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -25 predicate places. [2022-12-13 22:17:52,472 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 240 flow [2022-12-13 22:17:52,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 334.1666666666667) internal successors, (2005), 6 states have internal predecessors, (2005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:52,473 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:52,473 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:17:52,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 22:17:52,474 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:52,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:52,474 INFO L85 PathProgramCache]: Analyzing trace with hash -957413030, now seen corresponding path program 1 times [2022-12-13 22:17:52,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:52,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531013975] [2022-12-13 22:17:52,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:52,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:52,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:52,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:52,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531013975] [2022-12-13 22:17:52,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531013975] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:17:52,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152638582] [2022-12-13 22:17:52,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:52,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:17:52,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:17:52,577 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:17:52,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 22:17:52,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:52,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 22:17:52,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:17:52,705 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:52,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:17:52,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:52,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152638582] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:17:52,751 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 22:17:52,751 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 22:17:52,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488886613] [2022-12-13 22:17:52,752 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 22:17:52,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 22:17:52,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:52,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 22:17:52,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:17:53,018 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 333 out of 652 [2022-12-13 22:17:53,021 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 240 flow. Second operand has 12 states, 12 states have (on average 334.4166666666667) internal successors, (4013), 12 states have internal predecessors, (4013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:53,021 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:53,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 333 of 652 [2022-12-13 22:17:53,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:17:53,934 INFO L130 PetriNetUnfolder]: 5279/11072 cut-off events. [2022-12-13 22:17:53,934 INFO L131 PetriNetUnfolder]: For 1290/1631 co-relation queries the response was YES. [2022-12-13 22:17:53,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20330 conditions, 11072 events. 5279/11072 cut-off events. For 1290/1631 co-relation queries the response was YES. Maximal size of possible extension queue 423. Compared 97437 event pairs, 1615 based on Foata normal form. 43/8484 useless extension candidates. Maximal degree in co-relation 20324. Up to 3361 conditions per place. [2022-12-13 22:17:53,979 INFO L137 encePairwiseOnDemand]: 645/652 looper letters, 108 selfloop transitions, 6 changer transitions 0/177 dead transitions. [2022-12-13 22:17:53,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 177 transitions, 668 flow [2022-12-13 22:17:53,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:17:53,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 22:17:53,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2438 transitions. [2022-12-13 22:17:53,984 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5341805433829974 [2022-12-13 22:17:53,984 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2438 transitions. [2022-12-13 22:17:53,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2438 transitions. [2022-12-13 22:17:53,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:17:53,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2438 transitions. [2022-12-13 22:17:53,989 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 348.2857142857143) internal successors, (2438), 7 states have internal predecessors, (2438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:53,993 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 652.0) internal successors, (5216), 8 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:53,994 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 652.0) internal successors, (5216), 8 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:53,994 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 240 flow. Second operand 7 states and 2438 transitions. [2022-12-13 22:17:53,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 177 transitions, 668 flow [2022-12-13 22:17:54,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 177 transitions, 655 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 22:17:54,003 INFO L231 Difference]: Finished difference. Result has 114 places, 106 transitions, 279 flow [2022-12-13 22:17:54,003 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=279, PETRI_PLACES=114, PETRI_TRANSITIONS=106} [2022-12-13 22:17:54,004 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -19 predicate places. [2022-12-13 22:17:54,004 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 106 transitions, 279 flow [2022-12-13 22:17:54,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 334.4166666666667) internal successors, (4013), 12 states have internal predecessors, (4013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:54,005 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:54,005 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:17:54,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 22:17:54,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 22:17:54,208 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:54,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:54,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1696570868, now seen corresponding path program 2 times [2022-12-13 22:17:54,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:54,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454793817] [2022-12-13 22:17:54,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:54,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 22:17:54,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:54,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454793817] [2022-12-13 22:17:54,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454793817] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:17:54,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:17:54,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:17:54,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441780150] [2022-12-13 22:17:54,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:17:54,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:17:54,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:54,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:17:54,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:17:54,926 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 652 [2022-12-13 22:17:54,928 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 106 transitions, 279 flow. Second operand has 6 states, 6 states have (on average 333.0) internal successors, (1998), 6 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:54,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:54,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 652 [2022-12-13 22:17:54,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:17:56,209 INFO L130 PetriNetUnfolder]: 7261/15959 cut-off events. [2022-12-13 22:17:56,209 INFO L131 PetriNetUnfolder]: For 2039/2039 co-relation queries the response was YES. [2022-12-13 22:17:56,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28572 conditions, 15959 events. 7261/15959 cut-off events. For 2039/2039 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 154154 event pairs, 3183 based on Foata normal form. 0/12834 useless extension candidates. Maximal degree in co-relation 28563. Up to 7071 conditions per place. [2022-12-13 22:17:56,262 INFO L137 encePairwiseOnDemand]: 646/652 looper letters, 124 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2022-12-13 22:17:56,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 186 transitions, 721 flow [2022-12-13 22:17:56,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:17:56,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 22:17:56,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2108 transitions. [2022-12-13 22:17:56,265 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5388548057259713 [2022-12-13 22:17:56,265 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2108 transitions. [2022-12-13 22:17:56,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2108 transitions. [2022-12-13 22:17:56,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:17:56,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2108 transitions. [2022-12-13 22:17:56,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.3333333333333) internal successors, (2108), 6 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:56,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:56,272 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:56,272 INFO L175 Difference]: Start difference. First operand has 114 places, 106 transitions, 279 flow. Second operand 6 states and 2108 transitions. [2022-12-13 22:17:56,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 186 transitions, 721 flow [2022-12-13 22:17:56,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 186 transitions, 713 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 22:17:56,275 INFO L231 Difference]: Finished difference. Result has 118 places, 106 transitions, 285 flow [2022-12-13 22:17:56,276 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=285, PETRI_PLACES=118, PETRI_TRANSITIONS=106} [2022-12-13 22:17:56,276 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -15 predicate places. [2022-12-13 22:17:56,276 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 106 transitions, 285 flow [2022-12-13 22:17:56,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.0) internal successors, (1998), 6 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:56,277 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:56,277 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:17:56,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 22:17:56,277 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:56,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:56,277 INFO L85 PathProgramCache]: Analyzing trace with hash 561255477, now seen corresponding path program 1 times [2022-12-13 22:17:56,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:56,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651284102] [2022-12-13 22:17:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:56,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:56,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:56,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651284102] [2022-12-13 22:17:56,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651284102] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:17:56,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096431103] [2022-12-13 22:17:56,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:56,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:17:56,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:17:56,357 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:17:56,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 22:17:56,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:56,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 22:17:56,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:17:56,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:56,464 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:17:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:56,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096431103] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:17:56,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 22:17:56,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 22:17:56,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068924112] [2022-12-13 22:17:56,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 22:17:56,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 22:17:56,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:56,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 22:17:56,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:17:56,721 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 652 [2022-12-13 22:17:56,724 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 106 transitions, 285 flow. Second operand has 12 states, 12 states have (on average 332.5833333333333) internal successors, (3991), 12 states have internal predecessors, (3991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:56,724 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:56,724 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 652 [2022-12-13 22:17:56,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:17:57,532 INFO L130 PetriNetUnfolder]: 4220/9862 cut-off events. [2022-12-13 22:17:57,532 INFO L131 PetriNetUnfolder]: For 1576/1706 co-relation queries the response was YES. [2022-12-13 22:17:57,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18590 conditions, 9862 events. 4220/9862 cut-off events. For 1576/1706 co-relation queries the response was YES. Maximal size of possible extension queue 342. Compared 90865 event pairs, 1896 based on Foata normal form. 104/8312 useless extension candidates. Maximal degree in co-relation 18579. Up to 4136 conditions per place. [2022-12-13 22:17:57,574 INFO L137 encePairwiseOnDemand]: 645/652 looper letters, 98 selfloop transitions, 6 changer transitions 0/167 dead transitions. [2022-12-13 22:17:57,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 167 transitions, 658 flow [2022-12-13 22:17:57,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:17:57,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 22:17:57,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2414 transitions. [2022-12-13 22:17:57,578 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5289219982471516 [2022-12-13 22:17:57,578 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2414 transitions. [2022-12-13 22:17:57,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2414 transitions. [2022-12-13 22:17:57,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:17:57,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2414 transitions. [2022-12-13 22:17:57,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 344.85714285714283) internal successors, (2414), 7 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) [2022-12-13 22:17:57,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 652.0) internal successors, (5216), 8 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:57,585 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 652.0) internal successors, (5216), 8 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:57,585 INFO L175 Difference]: Start difference. First operand has 118 places, 106 transitions, 285 flow. Second operand 7 states and 2414 transitions. [2022-12-13 22:17:57,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 167 transitions, 658 flow [2022-12-13 22:17:57,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 167 transitions, 649 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 22:17:57,591 INFO L231 Difference]: Finished difference. Result has 123 places, 108 transitions, 307 flow [2022-12-13 22:17:57,592 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=307, PETRI_PLACES=123, PETRI_TRANSITIONS=108} [2022-12-13 22:17:57,592 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -10 predicate places. [2022-12-13 22:17:57,592 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 108 transitions, 307 flow [2022-12-13 22:17:57,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 332.5833333333333) internal successors, (3991), 12 states have internal predecessors, (3991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:57,593 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:57,593 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:17:57,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 22:17:57,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:17:57,795 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:57,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:57,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1099823001, now seen corresponding path program 2 times [2022-12-13 22:17:57,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:57,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276103516] [2022-12-13 22:17:57,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:57,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:58,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 22:17:58,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:58,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276103516] [2022-12-13 22:17:58,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276103516] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:17:58,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:17:58,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:17:58,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199797434] [2022-12-13 22:17:58,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:17:58,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:17:58,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:58,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:17:58,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:17:58,338 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 652 [2022-12-13 22:17:58,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 108 transitions, 307 flow. Second operand has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:58,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:58,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 652 [2022-12-13 22:17:58,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:17:59,406 INFO L130 PetriNetUnfolder]: 6680/13875 cut-off events. [2022-12-13 22:17:59,407 INFO L131 PetriNetUnfolder]: For 3341/3440 co-relation queries the response was YES. [2022-12-13 22:17:59,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28394 conditions, 13875 events. 6680/13875 cut-off events. For 3341/3440 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 125751 event pairs, 2669 based on Foata normal form. 78/12109 useless extension candidates. Maximal degree in co-relation 28381. Up to 5727 conditions per place. [2022-12-13 22:17:59,479 INFO L137 encePairwiseOnDemand]: 646/652 looper letters, 130 selfloop transitions, 5 changer transitions 0/192 dead transitions. [2022-12-13 22:17:59,479 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 192 transitions, 813 flow [2022-12-13 22:17:59,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:17:59,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 22:17:59,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2108 transitions. [2022-12-13 22:17:59,482 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5388548057259713 [2022-12-13 22:17:59,482 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2108 transitions. [2022-12-13 22:17:59,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2108 transitions. [2022-12-13 22:17:59,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:17:59,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2108 transitions. [2022-12-13 22:17:59,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.3333333333333) internal successors, (2108), 6 states have internal predecessors, (2108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:59,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:59,489 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:59,489 INFO L175 Difference]: Start difference. First operand has 123 places, 108 transitions, 307 flow. Second operand 6 states and 2108 transitions. [2022-12-13 22:17:59,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 192 transitions, 813 flow [2022-12-13 22:17:59,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 192 transitions, 808 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 22:17:59,503 INFO L231 Difference]: Finished difference. Result has 126 places, 108 transitions, 316 flow [2022-12-13 22:17:59,503 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=316, PETRI_PLACES=126, PETRI_TRANSITIONS=108} [2022-12-13 22:17:59,504 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -7 predicate places. [2022-12-13 22:17:59,504 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 108 transitions, 316 flow [2022-12-13 22:17:59,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:59,504 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:17:59,504 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:17:59,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 22:17:59,504 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:17:59,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:17:59,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1985618079, now seen corresponding path program 1 times [2022-12-13 22:17:59,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:17:59,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037518095] [2022-12-13 22:17:59,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:59,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:17:59,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:59,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:59,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:17:59,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037518095] [2022-12-13 22:17:59,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037518095] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 22:17:59,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797426353] [2022-12-13 22:17:59,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:17:59,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:17:59,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:17:59,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 22:17:59,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 22:17:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:17:59,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 22:17:59,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:17:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:59,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 22:17:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:17:59,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797426353] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 22:17:59,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 22:17:59,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 22:17:59,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024060434] [2022-12-13 22:17:59,759 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 22:17:59,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 22:17:59,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:17:59,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 22:17:59,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-12-13 22:17:59,967 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 652 [2022-12-13 22:17:59,971 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 108 transitions, 316 flow. Second operand has 12 states, 12 states have (on average 333.0833333333333) internal successors, (3997), 12 states have internal predecessors, (3997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:17:59,971 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:17:59,971 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 652 [2022-12-13 22:17:59,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:18:00,888 INFO L130 PetriNetUnfolder]: 4645/10012 cut-off events. [2022-12-13 22:18:00,888 INFO L131 PetriNetUnfolder]: For 2705/2757 co-relation queries the response was YES. [2022-12-13 22:18:00,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21446 conditions, 10012 events. 4645/10012 cut-off events. For 2705/2757 co-relation queries the response was YES. Maximal size of possible extension queue 353. Compared 86375 event pairs, 2224 based on Foata normal form. 34/8474 useless extension candidates. Maximal degree in co-relation 21431. Up to 5220 conditions per place. [2022-12-13 22:18:00,937 INFO L137 encePairwiseOnDemand]: 645/652 looper letters, 78 selfloop transitions, 6 changer transitions 0/148 dead transitions. [2022-12-13 22:18:00,937 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 148 transitions, 610 flow [2022-12-13 22:18:00,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 22:18:00,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 22:18:00,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2394 transitions. [2022-12-13 22:18:00,941 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5245398773006135 [2022-12-13 22:18:00,941 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2394 transitions. [2022-12-13 22:18:00,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2394 transitions. [2022-12-13 22:18:00,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:18:00,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2394 transitions. [2022-12-13 22:18:00,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 342.0) internal successors, (2394), 7 states have internal predecessors, (2394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:00,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 652.0) internal successors, (5216), 8 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:00,948 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 652.0) internal successors, (5216), 8 states have internal predecessors, (5216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:00,948 INFO L175 Difference]: Start difference. First operand has 126 places, 108 transitions, 316 flow. Second operand 7 states and 2394 transitions. [2022-12-13 22:18:00,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 148 transitions, 610 flow [2022-12-13 22:18:00,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 148 transitions, 601 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 22:18:00,967 INFO L231 Difference]: Finished difference. Result has 131 places, 110 transitions, 338 flow [2022-12-13 22:18:00,967 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=338, PETRI_PLACES=131, PETRI_TRANSITIONS=110} [2022-12-13 22:18:00,967 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -2 predicate places. [2022-12-13 22:18:00,967 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 110 transitions, 338 flow [2022-12-13 22:18:00,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 333.0833333333333) internal successors, (3997), 12 states have internal predecessors, (3997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:00,969 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:18:00,969 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:18:00,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-13 22:18:01,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 22:18:01,170 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:18:01,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:18:01,170 INFO L85 PathProgramCache]: Analyzing trace with hash -877932463, now seen corresponding path program 2 times [2022-12-13 22:18:01,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:18:01,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892248633] [2022-12-13 22:18:01,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:18:01,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:18:01,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:18:01,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 22:18:01,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:18:01,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892248633] [2022-12-13 22:18:01,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892248633] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:18:01,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:18:01,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:18:01,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752966183] [2022-12-13 22:18:01,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:18:01,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:18:01,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:18:01,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:18:01,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:18:01,719 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 652 [2022-12-13 22:18:01,721 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 110 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 333.6666666666667) internal successors, (2002), 6 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:01,721 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:18:01,721 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 652 [2022-12-13 22:18:01,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:18:02,776 INFO L130 PetriNetUnfolder]: 6470/12472 cut-off events. [2022-12-13 22:18:02,776 INFO L131 PetriNetUnfolder]: For 4327/4361 co-relation queries the response was YES. [2022-12-13 22:18:02,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28529 conditions, 12472 events. 6470/12472 cut-off events. For 4327/4361 co-relation queries the response was YES. Maximal size of possible extension queue 449. Compared 103447 event pairs, 2186 based on Foata normal form. 34/10929 useless extension candidates. Maximal degree in co-relation 28512. Up to 5130 conditions per place. [2022-12-13 22:18:02,835 INFO L137 encePairwiseOnDemand]: 646/652 looper letters, 122 selfloop transitions, 5 changer transitions 0/186 dead transitions. [2022-12-13 22:18:02,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 186 transitions, 856 flow [2022-12-13 22:18:02,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:18:02,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 22:18:02,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2094 transitions. [2022-12-13 22:18:02,839 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5352760736196319 [2022-12-13 22:18:02,839 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2094 transitions. [2022-12-13 22:18:02,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2094 transitions. [2022-12-13 22:18:02,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:18:02,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2094 transitions. [2022-12-13 22:18:02,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 349.0) internal successors, (2094), 6 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:02,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:02,844 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:02,844 INFO L175 Difference]: Start difference. First operand has 131 places, 110 transitions, 338 flow. Second operand 6 states and 2094 transitions. [2022-12-13 22:18:02,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 186 transitions, 856 flow [2022-12-13 22:18:02,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 186 transitions, 851 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 22:18:02,861 INFO L231 Difference]: Finished difference. Result has 134 places, 110 transitions, 347 flow [2022-12-13 22:18:02,862 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=347, PETRI_PLACES=134, PETRI_TRANSITIONS=110} [2022-12-13 22:18:02,862 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 1 predicate places. [2022-12-13 22:18:02,862 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 110 transitions, 347 flow [2022-12-13 22:18:02,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.6666666666667) internal successors, (2002), 6 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:02,862 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:18:02,863 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] [2022-12-13 22:18:02,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 22:18:02,863 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:18:02,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:18:02,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1652374016, now seen corresponding path program 1 times [2022-12-13 22:18:02,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:18:02,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932045411] [2022-12-13 22:18:02,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:18:02,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:18:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:18:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:18:03,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:18:03,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932045411] [2022-12-13 22:18:03,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932045411] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:18:03,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:18:03,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:18:03,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024901426] [2022-12-13 22:18:03,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:18:03,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:18:03,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:18:03,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:18:03,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:18:03,392 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 652 [2022-12-13 22:18:03,394 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 110 transitions, 347 flow. Second operand has 6 states, 6 states have (on average 334.6666666666667) internal successors, (2008), 6 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:03,394 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:18:03,394 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 652 [2022-12-13 22:18:03,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:18:04,438 INFO L130 PetriNetUnfolder]: 5958/11924 cut-off events. [2022-12-13 22:18:04,439 INFO L131 PetriNetUnfolder]: For 4397/4443 co-relation queries the response was YES. [2022-12-13 22:18:04,461 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27994 conditions, 11924 events. 5958/11924 cut-off events. For 4397/4443 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 101833 event pairs, 2662 based on Foata normal form. 46/10541 useless extension candidates. Maximal degree in co-relation 27975. Up to 6166 conditions per place. [2022-12-13 22:18:04,490 INFO L137 encePairwiseOnDemand]: 647/652 looper letters, 135 selfloop transitions, 4 changer transitions 0/197 dead transitions. [2022-12-13 22:18:04,490 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 197 transitions, 979 flow [2022-12-13 22:18:04,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:18:04,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 22:18:04,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2091 transitions. [2022-12-13 22:18:04,492 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5345092024539877 [2022-12-13 22:18:04,492 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2091 transitions. [2022-12-13 22:18:04,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2091 transitions. [2022-12-13 22:18:04,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:18:04,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2091 transitions. [2022-12-13 22:18:04,495 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 348.5) internal successors, (2091), 6 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:04,497 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:04,497 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:04,497 INFO L175 Difference]: Start difference. First operand has 134 places, 110 transitions, 347 flow. Second operand 6 states and 2091 transitions. [2022-12-13 22:18:04,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 197 transitions, 979 flow [2022-12-13 22:18:04,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 197 transitions, 959 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 22:18:04,520 INFO L231 Difference]: Finished difference. Result has 134 places, 109 transitions, 345 flow [2022-12-13 22:18:04,520 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=337, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=345, PETRI_PLACES=134, PETRI_TRANSITIONS=109} [2022-12-13 22:18:04,520 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 1 predicate places. [2022-12-13 22:18:04,520 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 109 transitions, 345 flow [2022-12-13 22:18:04,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 334.6666666666667) internal successors, (2008), 6 states have internal predecessors, (2008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:04,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:18:04,521 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:18:04,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 22:18:04,521 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:18:04,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:18:04,521 INFO L85 PathProgramCache]: Analyzing trace with hash -859985932, now seen corresponding path program 1 times [2022-12-13 22:18:04,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:18:04,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204555627] [2022-12-13 22:18:04,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:18:04,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:18:04,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:18:04,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 22:18:04,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:18:04,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204555627] [2022-12-13 22:18:04,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204555627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:18:04,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:18:04,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:18:04,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271319058] [2022-12-13 22:18:04,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:18:04,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:18:04,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:18:04,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:18:04,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:18:05,123 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 652 [2022-12-13 22:18:05,124 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 109 transitions, 345 flow. Second operand has 6 states, 6 states have (on average 333.0) internal successors, (1998), 6 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:05,125 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:18:05,125 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 652 [2022-12-13 22:18:05,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:18:06,245 INFO L130 PetriNetUnfolder]: 6334/12236 cut-off events. [2022-12-13 22:18:06,245 INFO L131 PetriNetUnfolder]: For 4332/4356 co-relation queries the response was YES. [2022-12-13 22:18:06,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28500 conditions, 12236 events. 6334/12236 cut-off events. For 4332/4356 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 102819 event pairs, 2568 based on Foata normal form. 24/10988 useless extension candidates. Maximal degree in co-relation 28481. Up to 5676 conditions per place. [2022-12-13 22:18:06,296 INFO L137 encePairwiseOnDemand]: 646/652 looper letters, 136 selfloop transitions, 5 changer transitions 0/196 dead transitions. [2022-12-13 22:18:06,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 196 transitions, 921 flow [2022-12-13 22:18:06,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:18:06,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 22:18:06,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2107 transitions. [2022-12-13 22:18:06,299 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.53859918200409 [2022-12-13 22:18:06,299 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2107 transitions. [2022-12-13 22:18:06,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2107 transitions. [2022-12-13 22:18:06,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:18:06,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2107 transitions. [2022-12-13 22:18:06,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.1666666666667) internal successors, (2107), 6 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:06,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:06,304 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:06,304 INFO L175 Difference]: Start difference. First operand has 134 places, 109 transitions, 345 flow. Second operand 6 states and 2107 transitions. [2022-12-13 22:18:06,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 196 transitions, 921 flow [2022-12-13 22:18:06,327 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 196 transitions, 914 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 22:18:06,328 INFO L231 Difference]: Finished difference. Result has 134 places, 108 transitions, 346 flow [2022-12-13 22:18:06,328 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=134, PETRI_TRANSITIONS=108} [2022-12-13 22:18:06,329 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 1 predicate places. [2022-12-13 22:18:06,329 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 108 transitions, 346 flow [2022-12-13 22:18:06,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.0) internal successors, (1998), 6 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:06,329 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:18:06,329 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-12-13 22:18:06,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 22:18:06,329 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:18:06,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:18:06,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1650205873, now seen corresponding path program 1 times [2022-12-13 22:18:06,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:18:06,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809776287] [2022-12-13 22:18:06,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:18:06,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:18:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:18:06,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 22:18:06,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:18:06,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809776287] [2022-12-13 22:18:06,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809776287] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:18:06,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:18:06,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:18:06,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639404814] [2022-12-13 22:18:06,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:18:06,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:18:06,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:18:06,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:18:06,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:18:06,956 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 652 [2022-12-13 22:18:06,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 108 transitions, 346 flow. Second operand has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:06,957 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:18:06,957 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 652 [2022-12-13 22:18:06,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:18:08,055 INFO L130 PetriNetUnfolder]: 6435/12434 cut-off events. [2022-12-13 22:18:08,056 INFO L131 PetriNetUnfolder]: For 4697/4721 co-relation queries the response was YES. [2022-12-13 22:18:08,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29126 conditions, 12434 events. 6435/12434 cut-off events. For 4697/4721 co-relation queries the response was YES. Maximal size of possible extension queue 488. Compared 104932 event pairs, 2565 based on Foata normal form. 24/11246 useless extension candidates. Maximal degree in co-relation 29107. Up to 5585 conditions per place. [2022-12-13 22:18:08,107 INFO L137 encePairwiseOnDemand]: 646/652 looper letters, 136 selfloop transitions, 5 changer transitions 0/195 dead transitions. [2022-12-13 22:18:08,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 195 transitions, 930 flow [2022-12-13 22:18:08,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:18:08,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 22:18:08,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2107 transitions. [2022-12-13 22:18:08,110 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.53859918200409 [2022-12-13 22:18:08,110 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2107 transitions. [2022-12-13 22:18:08,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2107 transitions. [2022-12-13 22:18:08,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:18:08,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2107 transitions. [2022-12-13 22:18:08,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 351.1666666666667) internal successors, (2107), 6 states have internal predecessors, (2107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:08,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:08,115 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:08,115 INFO L175 Difference]: Start difference. First operand has 134 places, 108 transitions, 346 flow. Second operand 6 states and 2107 transitions. [2022-12-13 22:18:08,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 195 transitions, 930 flow [2022-12-13 22:18:08,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 195 transitions, 912 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 22:18:08,139 INFO L231 Difference]: Finished difference. Result has 133 places, 107 transitions, 344 flow [2022-12-13 22:18:08,139 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=344, PETRI_PLACES=133, PETRI_TRANSITIONS=107} [2022-12-13 22:18:08,140 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, 0 predicate places. [2022-12-13 22:18:08,140 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 107 transitions, 344 flow [2022-12-13 22:18:08,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 333.3333333333333) internal successors, (2000), 6 states have internal predecessors, (2000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:08,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:18:08,140 INFO L209 CegarLoopForPetriNet]: trace histogram [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] [2022-12-13 22:18:08,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 22:18:08,140 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:18:08,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:18:08,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1599833931, now seen corresponding path program 1 times [2022-12-13 22:18:08,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:18:08,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175026436] [2022-12-13 22:18:08,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:18:08,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:18:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:18:08,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 22:18:08,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:18:08,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175026436] [2022-12-13 22:18:08,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175026436] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:18:08,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:18:08,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:18:08,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162469491] [2022-12-13 22:18:08,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:18:08,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:18:08,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:18:08,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:18:08,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:18:08,677 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 331 out of 652 [2022-12-13 22:18:08,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 107 transitions, 344 flow. Second operand has 6 states, 6 states have (on average 334.0) internal successors, (2004), 6 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:08,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:18:08,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 331 of 652 [2022-12-13 22:18:08,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:18:09,702 INFO L130 PetriNetUnfolder]: 6470/12109 cut-off events. [2022-12-13 22:18:09,702 INFO L131 PetriNetUnfolder]: For 4796/4830 co-relation queries the response was YES. [2022-12-13 22:18:09,730 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29201 conditions, 12109 events. 6470/12109 cut-off events. For 4796/4830 co-relation queries the response was YES. Maximal size of possible extension queue 433. Compared 97918 event pairs, 2624 based on Foata normal form. 34/10626 useless extension candidates. Maximal degree in co-relation 29182. Up to 6088 conditions per place. [2022-12-13 22:18:09,759 INFO L137 encePairwiseOnDemand]: 646/652 looper letters, 122 selfloop transitions, 5 changer transitions 0/182 dead transitions. [2022-12-13 22:18:09,759 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 182 transitions, 868 flow [2022-12-13 22:18:09,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:18:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 22:18:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2094 transitions. [2022-12-13 22:18:09,762 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5352760736196319 [2022-12-13 22:18:09,762 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2094 transitions. [2022-12-13 22:18:09,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2094 transitions. [2022-12-13 22:18:09,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:18:09,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2094 transitions. [2022-12-13 22:18:09,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 349.0) internal successors, (2094), 6 states have internal predecessors, (2094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:09,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:09,767 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:09,767 INFO L175 Difference]: Start difference. First operand has 133 places, 107 transitions, 344 flow. Second operand 6 states and 2094 transitions. [2022-12-13 22:18:09,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 182 transitions, 868 flow [2022-12-13 22:18:09,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 182 transitions, 850 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 22:18:09,789 INFO L231 Difference]: Finished difference. Result has 132 places, 106 transitions, 342 flow [2022-12-13 22:18:09,789 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=342, PETRI_PLACES=132, PETRI_TRANSITIONS=106} [2022-12-13 22:18:09,789 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -1 predicate places. [2022-12-13 22:18:09,789 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 106 transitions, 342 flow [2022-12-13 22:18:09,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 334.0) internal successors, (2004), 6 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:09,790 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:18:09,790 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:18:09,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 22:18:09,790 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 22:18:09,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:18:09,790 INFO L85 PathProgramCache]: Analyzing trace with hash -64365306, now seen corresponding path program 1 times [2022-12-13 22:18:09,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:18:09,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276100575] [2022-12-13 22:18:09,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:18:09,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:18:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:18:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 22:18:09,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:18:09,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276100575] [2022-12-13 22:18:09,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276100575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:18:09,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:18:09,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 22:18:09,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046884398] [2022-12-13 22:18:09,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:18:09,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 22:18:09,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:18:09,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 22:18:09,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 22:18:10,265 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 652 [2022-12-13 22:18:10,266 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 106 transitions, 342 flow. Second operand has 6 states, 6 states have (on average 335.1666666666667) internal successors, (2011), 6 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:10,267 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:18:10,267 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 652 [2022-12-13 22:18:10,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:18:11,127 INFO L130 PetriNetUnfolder]: 5082/10701 cut-off events. [2022-12-13 22:18:11,127 INFO L131 PetriNetUnfolder]: For 3765/3799 co-relation queries the response was YES. [2022-12-13 22:18:11,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24746 conditions, 10701 events. 5082/10701 cut-off events. For 3765/3799 co-relation queries the response was YES. Maximal size of possible extension queue 378. Compared 92877 event pairs, 2829 based on Foata normal form. 34/9472 useless extension candidates. Maximal degree in co-relation 24727. Up to 6532 conditions per place. [2022-12-13 22:18:11,148 INFO L137 encePairwiseOnDemand]: 647/652 looper letters, 0 selfloop transitions, 0 changer transitions 157/157 dead transitions. [2022-12-13 22:18:11,148 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 157 transitions, 754 flow [2022-12-13 22:18:11,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 22:18:11,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 22:18:11,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2067 transitions. [2022-12-13 22:18:11,151 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5283742331288344 [2022-12-13 22:18:11,151 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2067 transitions. [2022-12-13 22:18:11,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2067 transitions. [2022-12-13 22:18:11,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:18:11,151 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2067 transitions. [2022-12-13 22:18:11,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 344.5) internal successors, (2067), 6 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:11,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:11,155 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 652.0) internal successors, (4564), 7 states have internal predecessors, (4564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:11,155 INFO L175 Difference]: Start difference. First operand has 132 places, 106 transitions, 342 flow. Second operand 6 states and 2067 transitions. [2022-12-13 22:18:11,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 157 transitions, 754 flow [2022-12-13 22:18:11,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 157 transitions, 736 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 22:18:11,175 INFO L231 Difference]: Finished difference. Result has 131 places, 0 transitions, 0 flow [2022-12-13 22:18:11,176 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=652, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=131, PETRI_TRANSITIONS=0} [2022-12-13 22:18:11,176 INFO L288 CegarLoopForPetriNet]: 133 programPoint places, -2 predicate places. [2022-12-13 22:18:11,176 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 0 transitions, 0 flow [2022-12-13 22:18:11,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 335.1666666666667) internal successors, (2011), 6 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 22:18:11,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (63 of 64 remaining) [2022-12-13 22:18:11,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2022-12-13 22:18:11,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2022-12-13 22:18:11,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2022-12-13 22:18:11,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2022-12-13 22:18:11,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2022-12-13 22:18:11,178 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (57 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2022-12-13 22:18:11,179 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (30 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (29 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2022-12-13 22:18:11,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2022-12-13 22:18:11,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2022-12-13 22:18:11,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2022-12-13 22:18:11,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2022-12-13 22:18:11,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2022-12-13 22:18:11,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2022-12-13 22:18:11,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2022-12-13 22:18:11,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2022-12-13 22:18:11,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2022-12-13 22:18:11,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2022-12-13 22:18:11,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2022-12-13 22:18:11,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2022-12-13 22:18:11,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-13 22:18:11,182 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:18:11,186 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 22:18:11,186 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:18:11,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:18:11 BasicIcfg [2022-12-13 22:18:11,188 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:18:11,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:18:11,189 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:18:11,189 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:18:11,189 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:17:38" (3/4) ... [2022-12-13 22:18:11,191 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 22:18:11,195 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 22:18:11,195 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 22:18:11,195 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 22:18:11,199 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-12-13 22:18:11,199 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 22:18:11,199 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 22:18:11,199 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 22:18:11,226 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 22:18:11,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:18:11,227 INFO L158 Benchmark]: Toolchain (without parser) took 33089.80ms. Allocated memory was 140.5MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 103.3MB in the beginning and 993.2MB in the end (delta: -889.9MB). Peak memory consumption was 421.1MB. Max. memory is 16.1GB. [2022-12-13 22:18:11,227 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory is still 110.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:18:11,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.02ms. Allocated memory is still 140.5MB. Free memory was 103.3MB in the beginning and 90.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 22:18:11,228 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.09ms. Allocated memory is still 140.5MB. Free memory was 90.8MB in the beginning and 88.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:18:11,228 INFO L158 Benchmark]: Boogie Preprocessor took 39.42ms. Allocated memory is still 140.5MB. Free memory was 88.2MB in the beginning and 85.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:18:11,228 INFO L158 Benchmark]: RCFGBuilder took 514.87ms. Allocated memory is still 140.5MB. Free memory was 85.7MB in the beginning and 56.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-12-13 22:18:11,229 INFO L158 Benchmark]: TraceAbstraction took 32187.49ms. Allocated memory was 140.5MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 55.9MB in the beginning and 997.4MB in the end (delta: -941.4MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2022-12-13 22:18:11,229 INFO L158 Benchmark]: Witness Printer took 37.74ms. Allocated memory is still 1.4GB. Free memory was 997.4MB in the beginning and 993.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:18:11,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 140.5MB. Free memory is still 110.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.02ms. Allocated memory is still 140.5MB. Free memory was 103.3MB in the beginning and 90.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.09ms. Allocated memory is still 140.5MB. Free memory was 90.8MB in the beginning and 88.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.42ms. Allocated memory is still 140.5MB. Free memory was 88.2MB in the beginning and 85.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.87ms. Allocated memory is still 140.5MB. Free memory was 85.7MB in the beginning and 56.4MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 32187.49ms. Allocated memory was 140.5MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 55.9MB in the beginning and 997.4MB in the end (delta: -941.4MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 37.74ms. Allocated memory is still 1.4GB. Free memory was 997.4MB in the beginning and 993.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3s, 329 PlacesBefore, 133 PlacesAfterwards, 334 TransitionsBefore, 133 TransitionsAfterwards, 21474 CoEnabledTransitionPairs, 8 FixpointIterations, 165 TrivialSequentialCompositions, 86 ConcurrentSequentialCompositions, 20 TrivialYvCompositions, 16 ConcurrentYvCompositions, 5 ChoiceCompositions, 292 TotalNumberOfCompositions, 137983 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31776, independent: 30200, independent conditional: 0, independent unconditional: 30200, dependent: 1576, dependent conditional: 0, dependent unconditional: 1576, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10084, independent: 9903, independent conditional: 0, independent unconditional: 9903, dependent: 181, dependent conditional: 0, dependent unconditional: 181, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 31776, independent: 20297, independent conditional: 0, independent unconditional: 20297, dependent: 1395, dependent conditional: 0, dependent unconditional: 1395, unknown: 10084, unknown conditional: 0, unknown unconditional: 10084] , Statistics on independence cache: Total cache size (in pairs): 1670, Positive cache size: 1565, Positive conditional cache size: 0, Positive unconditional cache size: 1565, Negative cache size: 105, Negative conditional cache size: 0, Negative unconditional cache size: 105, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 488 locations, 64 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 32.0s, OverallIterations: 18, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 21.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4513 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3073 mSDsluCounter, 1082 SdHoareTripleChecker+Invalid, 5.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 906 mSDsCounter, 1466 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9408 IncrementalHoareTripleChecker+Invalid, 10874 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1466 mSolverCounterUnsat, 176 mSDtfsCounter, 9408 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 97 SyntacticMatches, 4 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=347occurred in iteration=13, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 343 NumberOfCodeBlocks, 343 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 370 ConstructedInterpolants, 0 QuantifiedInterpolants, 1669 SizeOfPredicates, 19 NumberOfNonLiveVariables, 623 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 24 InterpolantComputations, 15 PerfectInterpolantSequences, 21/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 39 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 22:18:11,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f19927-e26c-46d3-9071-7ac25ac5d509/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE