./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i --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_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/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_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/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_8416301f-b0e8-4327-8ed2-552f3942c305/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 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 --- 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 15:35:19,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:35:19,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:35:19,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:35:19,167 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:35:19,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:35:19,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:35:19,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:35:19,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:35:19,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:35:19,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:35:19,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:35:19,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:35:19,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:35:19,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:35:19,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:35:19,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:35:19,180 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:35:19,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:35:19,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:35:19,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:35:19,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:35:19,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:35:19,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:35:19,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:35:19,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:35:19,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:35:19,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:35:19,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:35:19,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:35:19,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:35:19,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:35:19,196 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:35:19,197 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:35:19,198 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:35:19,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:35:19,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:35:19,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:35:19,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:35:19,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:35:19,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:35:19,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 15:35:19,224 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:35:19,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:35:19,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:35:19,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:35:19,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:35:19,226 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:35:19,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:35:19,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:35:19,227 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:35:19,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:35:19,227 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:35:19,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:35:19,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:35:19,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:35:19,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:35:19,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:35:19,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:35:19,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:35:19,228 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 15:35:19,229 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:35:19,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:35:19,229 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:35:19,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:35:19,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:35:19,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:35:19,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:35:19,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:35:19,230 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:35:19,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:35:19,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:35:19,231 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:35:19,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:35:19,231 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:35:19,231 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:35:19,232 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:35:19,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:35:19,232 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:35:19,232 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_8416301f-b0e8-4327-8ed2-552f3942c305/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d0b9c4fc8b0005fb250fdf1ff8e25835b95e676b1936e4f5fe1cf72245ee5f5 [2022-12-13 15:35:19,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:35:19,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:35:19,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:35:19,432 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:35:19,432 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:35:19,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-12-13 15:35:22,088 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:35:22,298 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:35:22,298 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i [2022-12-13 15:35:22,311 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/data/1e38eae21/e892d0410ff34947ae4303756be11066/FLAG63200946f [2022-12-13 15:35:22,321 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/data/1e38eae21/e892d0410ff34947ae4303756be11066 [2022-12-13 15:35:22,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:35:22,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:35:22,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:35:22,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:35:22,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:35:22,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89e7e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22, skipping insertion in model container [2022-12-13 15:35:22,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:35:22,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:35:22,463 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_8416301f-b0e8-4327-8ed2-552f3942c305/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-12-13 15:35:22,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:35:22,561 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:35:22,569 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_8416301f-b0e8-4327-8ed2-552f3942c305/sv-benchmarks/c/goblint-regression/13-privatized_27-multiple-protecting2_true.i[1097,1110] [2022-12-13 15:35:22,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:35:22,615 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:35:22,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22 WrapperNode [2022-12-13 15:35:22,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:35:22,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:35:22,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:35:22,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:35:22,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,646 INFO L138 Inliner]: procedures = 163, calls = 52, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 122 [2022-12-13 15:35:22,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:35:22,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:35:22,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:35:22,647 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:35:22,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,667 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:35:22,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:35:22,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:35:22,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:35:22,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (1/1) ... [2022-12-13 15:35:22,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:35:22,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:35:22,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:35:22,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:35:22,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:35:22,725 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2022-12-13 15:35:22,725 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2022-12-13 15:35:22,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:35:22,725 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 15:35:22,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:35:22,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:35:22,725 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 15:35:22,725 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 15:35:22,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:35:22,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:35:22,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:35:22,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:35:22,727 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 15:35:22,825 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:35:22,826 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:35:23,097 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:35:23,106 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:35:23,106 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:35:23,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:35:23 BoogieIcfgContainer [2022-12-13 15:35:23,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:35:23,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:35:23,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:35:23,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:35:23,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:35:22" (1/3) ... [2022-12-13 15:35:23,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103d9a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:35:23, skipping insertion in model container [2022-12-13 15:35:23,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:35:22" (2/3) ... [2022-12-13 15:35:23,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103d9a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:35:23, skipping insertion in model container [2022-12-13 15:35:23,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:35:23" (3/3) ... [2022-12-13 15:35:23,115 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_27-multiple-protecting2_true.i [2022-12-13 15:35:23,121 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:35:23,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:35:23,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2022-12-13 15:35:23,129 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:35:23,185 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 15:35:23,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 214 places, 211 transitions, 438 flow [2022-12-13 15:35:23,272 INFO L130 PetriNetUnfolder]: 4/209 cut-off events. [2022-12-13 15:35:23,272 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 15:35:23,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 209 events. 4/209 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 252 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-12-13 15:35:23,277 INFO L82 GeneralOperation]: Start removeDead. Operand has 214 places, 211 transitions, 438 flow [2022-12-13 15:35:23,281 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 202 places, 199 transitions, 407 flow [2022-12-13 15:35:23,284 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:35:23,291 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 202 places, 199 transitions, 407 flow [2022-12-13 15:35:23,294 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 202 places, 199 transitions, 407 flow [2022-12-13 15:35:23,294 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 202 places, 199 transitions, 407 flow [2022-12-13 15:35:23,325 INFO L130 PetriNetUnfolder]: 4/199 cut-off events. [2022-12-13 15:35:23,325 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:35:23,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 199 events. 4/199 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 252 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 153. Up to 2 conditions per place. [2022-12-13 15:35:23,330 INFO L119 LiptonReduction]: Number of co-enabled transitions 13532 [2022-12-13 15:35:26,956 INFO L134 LiptonReduction]: Checked pairs total: 63783 [2022-12-13 15:35:26,956 INFO L136 LiptonReduction]: Total number of compositions: 140 [2022-12-13 15:35:26,967 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:35:26,971 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;@42b05b2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:35:26,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-12-13 15:35:26,974 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-13 15:35:26,974 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:35:26,974 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:35:26,974 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 15:35:26,975 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-13 15:35:26,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:35:26,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1403653438, now seen corresponding path program 1 times [2022-12-13 15:35:26,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:35:26,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279070458] [2022-12-13 15:35:26,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:35:26,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:35:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:35:27,124 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 15:35:27,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:35:27,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279070458] [2022-12-13 15:35:27,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279070458] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:35:27,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:35:27,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:35:27,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398559967] [2022-12-13 15:35:27,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:35:27,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:35:27,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:35:27,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:35:27,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:35:27,174 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 182 out of 351 [2022-12-13 15:35:27,176 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 85 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 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 15:35:27,176 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:35:27,176 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 182 of 351 [2022-12-13 15:35:27,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:35:28,785 INFO L130 PetriNetUnfolder]: 13775/23390 cut-off events. [2022-12-13 15:35:28,785 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-12-13 15:35:28,816 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44997 conditions, 23390 events. 13775/23390 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 170976 event pairs, 4222 based on Foata normal form. 598/22424 useless extension candidates. Maximal degree in co-relation 44761. Up to 14518 conditions per place. [2022-12-13 15:35:28,906 INFO L137 encePairwiseOnDemand]: 331/351 looper letters, 99 selfloop transitions, 10 changer transitions 0/125 dead transitions. [2022-12-13 15:35:28,906 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 125 transitions, 483 flow [2022-12-13 15:35:28,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:35:28,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:35:28,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 670 transitions. [2022-12-13 15:35:28,919 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6362773029439696 [2022-12-13 15:35:28,919 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 670 transitions. [2022-12-13 15:35:28,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 670 transitions. [2022-12-13 15:35:28,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:35:28,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 670 transitions. [2022-12-13 15:35:28,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 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 15:35:28,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:28,935 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:28,936 INFO L175 Difference]: Start difference. First operand has 88 places, 85 transitions, 179 flow. Second operand 3 states and 670 transitions. [2022-12-13 15:35:28,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 125 transitions, 483 flow [2022-12-13 15:35:28,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 125 transitions, 475 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 15:35:28,946 INFO L231 Difference]: Finished difference. Result has 84 places, 84 transitions, 234 flow [2022-12-13 15:35:28,948 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=84, PETRI_TRANSITIONS=84} [2022-12-13 15:35:28,951 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, -4 predicate places. [2022-12-13 15:35:28,951 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 84 transitions, 234 flow [2022-12-13 15:35:28,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.0) internal successors, (552), 3 states have internal predecessors, (552), 0 states have call successors, (0), 0 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 15:35:28,952 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:35:28,952 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:35:28,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:35:28,952 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-13 15:35:28,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:35:28,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2125801075, now seen corresponding path program 1 times [2022-12-13 15:35:28,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:35:28,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952326729] [2022-12-13 15:35:28,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:35:28,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:35:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:35:29,004 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 15:35:29,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:35:29,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952326729] [2022-12-13 15:35:29,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952326729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:35:29,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:35:29,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:35:29,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894621474] [2022-12-13 15:35:29,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:35:29,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:35:29,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:35:29,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:35:29,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:35:29,022 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 351 [2022-12-13 15:35:29,024 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 84 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 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 15:35:29,024 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:35:29,024 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 351 [2022-12-13 15:35:29,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:35:30,783 INFO L130 PetriNetUnfolder]: 17988/30398 cut-off events. [2022-12-13 15:35:30,783 INFO L131 PetriNetUnfolder]: For 8002/8479 co-relation queries the response was YES. [2022-12-13 15:35:30,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65394 conditions, 30398 events. 17988/30398 cut-off events. For 8002/8479 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 225806 event pairs, 7471 based on Foata normal form. 0/28846 useless extension candidates. Maximal degree in co-relation 62325. Up to 15095 conditions per place. [2022-12-13 15:35:30,870 INFO L137 encePairwiseOnDemand]: 342/351 looper letters, 112 selfloop transitions, 6 changer transitions 0/136 dead transitions. [2022-12-13 15:35:30,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 136 transitions, 619 flow [2022-12-13 15:35:30,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:35:30,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:35:30,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 673 transitions. [2022-12-13 15:35:30,872 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6391263057929725 [2022-12-13 15:35:30,872 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 673 transitions. [2022-12-13 15:35:30,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 673 transitions. [2022-12-13 15:35:30,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:35:30,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 673 transitions. [2022-12-13 15:35:30,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 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 15:35:30,875 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:30,875 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:30,875 INFO L175 Difference]: Start difference. First operand has 84 places, 84 transitions, 234 flow. Second operand 3 states and 673 transitions. [2022-12-13 15:35:30,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 136 transitions, 619 flow [2022-12-13 15:35:30,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 136 transitions, 583 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:35:30,880 INFO L231 Difference]: Finished difference. Result has 84 places, 86 transitions, 252 flow [2022-12-13 15:35:30,880 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=84, PETRI_TRANSITIONS=86} [2022-12-13 15:35:30,881 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, -4 predicate places. [2022-12-13 15:35:30,881 INFO L495 AbstractCegarLoop]: Abstraction has has 84 places, 86 transitions, 252 flow [2022-12-13 15:35:30,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 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 15:35:30,881 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:35:30,881 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:35:30,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:35:30,882 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-13 15:35:30,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:35:30,882 INFO L85 PathProgramCache]: Analyzing trace with hash -437382629, now seen corresponding path program 1 times [2022-12-13 15:35:30,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:35:30,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89077834] [2022-12-13 15:35:30,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:35:30,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:35:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:35:30,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:35:30,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:35:30,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89077834] [2022-12-13 15:35:30,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89077834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:35:30,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:35:30,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:35:30,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826400754] [2022-12-13 15:35:30,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:35:30,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:35:30,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:35:30,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:35:30,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:35:30,945 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 351 [2022-12-13 15:35:30,946 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 86 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 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 15:35:30,946 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:35:30,946 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 351 [2022-12-13 15:35:30,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:35:32,826 INFO L130 PetriNetUnfolder]: 17553/29779 cut-off events. [2022-12-13 15:35:32,826 INFO L131 PetriNetUnfolder]: For 7987/8157 co-relation queries the response was YES. [2022-12-13 15:35:32,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66401 conditions, 29779 events. 17553/29779 cut-off events. For 7987/8157 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 224201 event pairs, 12510 based on Foata normal form. 0/27772 useless extension candidates. Maximal degree in co-relation 63434. Up to 23312 conditions per place. [2022-12-13 15:35:32,913 INFO L137 encePairwiseOnDemand]: 344/351 looper letters, 103 selfloop transitions, 8 changer transitions 0/132 dead transitions. [2022-12-13 15:35:32,913 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 132 transitions, 604 flow [2022-12-13 15:35:32,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:35:32,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:35:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2022-12-13 15:35:32,915 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.627730294396961 [2022-12-13 15:35:32,915 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 661 transitions. [2022-12-13 15:35:32,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 661 transitions. [2022-12-13 15:35:32,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:35:32,916 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 661 transitions. [2022-12-13 15:35:32,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 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 15:35:32,918 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:32,918 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:32,918 INFO L175 Difference]: Start difference. First operand has 84 places, 86 transitions, 252 flow. Second operand 3 states and 661 transitions. [2022-12-13 15:35:32,918 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 132 transitions, 604 flow [2022-12-13 15:35:32,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 132 transitions, 586 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:35:32,930 INFO L231 Difference]: Finished difference. Result has 86 places, 93 transitions, 312 flow [2022-12-13 15:35:32,930 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=312, PETRI_PLACES=86, PETRI_TRANSITIONS=93} [2022-12-13 15:35:32,931 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, -2 predicate places. [2022-12-13 15:35:32,931 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 93 transitions, 312 flow [2022-12-13 15:35:32,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.66666666666666) internal successors, (572), 3 states have internal predecessors, (572), 0 states have call successors, (0), 0 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 15:35:32,931 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:35:32,931 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:35:32,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:35:32,931 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-13 15:35:32,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:35:32,932 INFO L85 PathProgramCache]: Analyzing trace with hash -443290850, now seen corresponding path program 1 times [2022-12-13 15:35:32,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:35:32,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8576498] [2022-12-13 15:35:32,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:35:32,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:35:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:35:32,964 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 15:35:32,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:35:32,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8576498] [2022-12-13 15:35:32,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8576498] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:35:32,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:35:32,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:35:32,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237197327] [2022-12-13 15:35:32,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:35:32,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:35:32,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:35:32,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:35:32,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:35:32,980 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 351 [2022-12-13 15:35:32,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 93 transitions, 312 flow. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 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 15:35:32,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:35:32,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 351 [2022-12-13 15:35:32,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:35:35,034 INFO L130 PetriNetUnfolder]: 18798/31606 cut-off events. [2022-12-13 15:35:35,034 INFO L131 PetriNetUnfolder]: For 14061/14831 co-relation queries the response was YES. [2022-12-13 15:35:35,072 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74722 conditions, 31606 events. 18798/31606 cut-off events. For 14061/14831 co-relation queries the response was YES. Maximal size of possible extension queue 623. Compared 233993 event pairs, 13659 based on Foata normal form. 14/29671 useless extension candidates. Maximal degree in co-relation 71625. Up to 27004 conditions per place. [2022-12-13 15:35:35,169 INFO L137 encePairwiseOnDemand]: 347/351 looper letters, 113 selfloop transitions, 3 changer transitions 0/141 dead transitions. [2022-12-13 15:35:35,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 141 transitions, 695 flow [2022-12-13 15:35:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:35:35,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:35:35,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 666 transitions. [2022-12-13 15:35:35,171 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6324786324786325 [2022-12-13 15:35:35,171 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 666 transitions. [2022-12-13 15:35:35,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 666 transitions. [2022-12-13 15:35:35,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:35:35,172 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 666 transitions. [2022-12-13 15:35:35,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.0) internal successors, (666), 3 states have internal predecessors, (666), 0 states have call successors, (0), 0 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 15:35:35,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:35,176 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:35,176 INFO L175 Difference]: Start difference. First operand has 86 places, 93 transitions, 312 flow. Second operand 3 states and 666 transitions. [2022-12-13 15:35:35,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 141 transitions, 695 flow [2022-12-13 15:35:35,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 141 transitions, 671 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:35:35,197 INFO L231 Difference]: Finished difference. Result has 87 places, 95 transitions, 317 flow [2022-12-13 15:35:35,197 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=317, PETRI_PLACES=87, PETRI_TRANSITIONS=95} [2022-12-13 15:35:35,197 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, -1 predicate places. [2022-12-13 15:35:35,198 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 95 transitions, 317 flow [2022-12-13 15:35:35,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 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 15:35:35,198 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:35:35,198 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:35:35,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:35:35,198 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-13 15:35:35,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:35:35,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1150264589, now seen corresponding path program 1 times [2022-12-13 15:35:35,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:35:35,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145924817] [2022-12-13 15:35:35,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:35:35,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:35:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:35:35,421 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 15:35:35,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:35:35,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145924817] [2022-12-13 15:35:35,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145924817] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:35:35,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:35:35,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:35:35,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068152081] [2022-12-13 15:35:35,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:35:35,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:35:35,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:35:35,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:35:35,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:35:35,508 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 351 [2022-12-13 15:35:35,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 95 transitions, 317 flow. Second operand has 4 states, 4 states have (on average 193.75) internal successors, (775), 4 states have internal predecessors, (775), 0 states have call successors, (0), 0 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 15:35:35,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:35:35,509 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 351 [2022-12-13 15:35:35,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:35:36,685 INFO L130 PetriNetUnfolder]: 8678/15825 cut-off events. [2022-12-13 15:35:36,685 INFO L131 PetriNetUnfolder]: For 5608/6163 co-relation queries the response was YES. [2022-12-13 15:35:36,700 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37101 conditions, 15825 events. 8678/15825 cut-off events. For 5608/6163 co-relation queries the response was YES. Maximal size of possible extension queue 432. Compared 120614 event pairs, 2778 based on Foata normal form. 409/15194 useless extension candidates. Maximal degree in co-relation 35572. Up to 8681 conditions per place. [2022-12-13 15:35:36,732 INFO L137 encePairwiseOnDemand]: 344/351 looper letters, 115 selfloop transitions, 7 changer transitions 0/152 dead transitions. [2022-12-13 15:35:36,732 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 152 transitions, 731 flow [2022-12-13 15:35:36,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:35:36,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:35:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 868 transitions. [2022-12-13 15:35:36,734 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6182336182336182 [2022-12-13 15:35:36,734 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 868 transitions. [2022-12-13 15:35:36,734 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 868 transitions. [2022-12-13 15:35:36,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:35:36,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 868 transitions. [2022-12-13 15:35:36,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 217.0) internal successors, (868), 4 states have internal predecessors, (868), 0 states have call successors, (0), 0 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 15:35:36,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 351.0) internal successors, (1755), 5 states have internal predecessors, (1755), 0 states have call successors, (0), 0 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 15:35:36,738 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 351.0) internal successors, (1755), 5 states have internal predecessors, (1755), 0 states have call successors, (0), 0 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 15:35:36,738 INFO L175 Difference]: Start difference. First operand has 87 places, 95 transitions, 317 flow. Second operand 4 states and 868 transitions. [2022-12-13 15:35:36,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 152 transitions, 731 flow [2022-12-13 15:35:36,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 152 transitions, 726 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:35:36,742 INFO L231 Difference]: Finished difference. Result has 90 places, 99 transitions, 350 flow [2022-12-13 15:35:36,742 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=350, PETRI_PLACES=90, PETRI_TRANSITIONS=99} [2022-12-13 15:35:36,742 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 2 predicate places. [2022-12-13 15:35:36,742 INFO L495 AbstractCegarLoop]: Abstraction has has 90 places, 99 transitions, 350 flow [2022-12-13 15:35:36,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 193.75) internal successors, (775), 4 states have internal predecessors, (775), 0 states have call successors, (0), 0 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 15:35:36,743 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:35:36,743 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:35:36,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:35:36,743 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-13 15:35:36,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:35:36,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1449189751, now seen corresponding path program 1 times [2022-12-13 15:35:36,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:35:36,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837630629] [2022-12-13 15:35:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:35:36,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:35:36,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:35:36,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:35:36,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:35:36,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837630629] [2022-12-13 15:35:36,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837630629] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:35:36,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:35:36,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:35:36,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735983090] [2022-12-13 15:35:36,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:35:36,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:35:36,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:35:36,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:35:36,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:35:36,787 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 351 [2022-12-13 15:35:36,788 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 99 transitions, 350 flow. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 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 15:35:36,788 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:35:36,788 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 351 [2022-12-13 15:35:36,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:35:38,047 INFO L130 PetriNetUnfolder]: 10052/17715 cut-off events. [2022-12-13 15:35:38,047 INFO L131 PetriNetUnfolder]: For 7239/7697 co-relation queries the response was YES. [2022-12-13 15:35:38,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44922 conditions, 17715 events. 10052/17715 cut-off events. For 7239/7697 co-relation queries the response was YES. Maximal size of possible extension queue 475. Compared 131714 event pairs, 6515 based on Foata normal form. 0/16511 useless extension candidates. Maximal degree in co-relation 38540. Up to 14551 conditions per place. [2022-12-13 15:35:38,097 INFO L137 encePairwiseOnDemand]: 344/351 looper letters, 115 selfloop transitions, 8 changer transitions 2/148 dead transitions. [2022-12-13 15:35:38,097 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 148 transitions, 759 flow [2022-12-13 15:35:38,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:35:38,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:35:38,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 661 transitions. [2022-12-13 15:35:38,100 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.627730294396961 [2022-12-13 15:35:38,100 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 661 transitions. [2022-12-13 15:35:38,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 661 transitions. [2022-12-13 15:35:38,100 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:35:38,100 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 661 transitions. [2022-12-13 15:35:38,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 0 states have call successors, (0), 0 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 15:35:38,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:38,105 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:38,105 INFO L175 Difference]: Start difference. First operand has 90 places, 99 transitions, 350 flow. Second operand 3 states and 661 transitions. [2022-12-13 15:35:38,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 148 transitions, 759 flow [2022-12-13 15:35:38,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 148 transitions, 758 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:35:38,110 INFO L231 Difference]: Finished difference. Result has 93 places, 106 transitions, 431 flow [2022-12-13 15:35:38,110 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=431, PETRI_PLACES=93, PETRI_TRANSITIONS=106} [2022-12-13 15:35:38,111 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2022-12-13 15:35:38,111 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 106 transitions, 431 flow [2022-12-13 15:35:38,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 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 15:35:38,112 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:35:38,112 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:35:38,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:35:38,112 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-13 15:35:38,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:35:38,112 INFO L85 PathProgramCache]: Analyzing trace with hash 509025777, now seen corresponding path program 1 times [2022-12-13 15:35:38,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:35:38,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859975799] [2022-12-13 15:35:38,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:35:38,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:35:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:35:38,145 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 15:35:38,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:35:38,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859975799] [2022-12-13 15:35:38,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859975799] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:35:38,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:35:38,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:35:38,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002560691] [2022-12-13 15:35:38,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:35:38,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:35:38,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:35:38,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:35:38,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:35:38,159 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 351 [2022-12-13 15:35:38,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 106 transitions, 431 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 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 15:35:38,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:35:38,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 351 [2022-12-13 15:35:38,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:35:39,461 INFO L130 PetriNetUnfolder]: 11315/19576 cut-off events. [2022-12-13 15:35:39,461 INFO L131 PetriNetUnfolder]: For 12621/13292 co-relation queries the response was YES. [2022-12-13 15:35:39,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52596 conditions, 19576 events. 11315/19576 cut-off events. For 12621/13292 co-relation queries the response was YES. Maximal size of possible extension queue 520. Compared 144109 event pairs, 6606 based on Foata normal form. 20/18190 useless extension candidates. Maximal degree in co-relation 45537. Up to 15738 conditions per place. [2022-12-13 15:35:39,551 INFO L137 encePairwiseOnDemand]: 346/351 looper letters, 117 selfloop transitions, 4 changer transitions 4/155 dead transitions. [2022-12-13 15:35:39,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 155 transitions, 852 flow [2022-12-13 15:35:39,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:35:39,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:35:39,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 667 transitions. [2022-12-13 15:35:39,553 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6334283000949668 [2022-12-13 15:35:39,553 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 667 transitions. [2022-12-13 15:35:39,553 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 667 transitions. [2022-12-13 15:35:39,554 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:35:39,554 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 667 transitions. [2022-12-13 15:35:39,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 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 15:35:39,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:39,557 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:39,557 INFO L175 Difference]: Start difference. First operand has 93 places, 106 transitions, 431 flow. Second operand 3 states and 667 transitions. [2022-12-13 15:35:39,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 155 transitions, 852 flow [2022-12-13 15:35:39,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 155 transitions, 820 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-12-13 15:35:39,589 INFO L231 Difference]: Finished difference. Result has 95 places, 109 transitions, 439 flow [2022-12-13 15:35:39,589 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=439, PETRI_PLACES=95, PETRI_TRANSITIONS=109} [2022-12-13 15:35:39,590 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 7 predicate places. [2022-12-13 15:35:39,590 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 109 transitions, 439 flow [2022-12-13 15:35:39,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 0 states have call successors, (0), 0 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 15:35:39,590 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:35:39,590 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] [2022-12-13 15:35:39,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:35:39,591 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-13 15:35:39,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:35:39,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1050253382, now seen corresponding path program 1 times [2022-12-13 15:35:39,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:35:39,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722519062] [2022-12-13 15:35:39,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:35:39,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:35:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:35:39,663 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 15:35:39,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:35:39,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722519062] [2022-12-13 15:35:39,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722519062] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:35:39,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:35:39,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:35:39,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771925386] [2022-12-13 15:35:39,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:35:39,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:35:39,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:35:39,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:35:39,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:35:39,698 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 351 [2022-12-13 15:35:39,699 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 109 transitions, 439 flow. Second operand has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 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 15:35:39,699 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:35:39,699 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 351 [2022-12-13 15:35:39,699 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:35:40,770 INFO L130 PetriNetUnfolder]: 7660/15070 cut-off events. [2022-12-13 15:35:40,770 INFO L131 PetriNetUnfolder]: For 9163/9415 co-relation queries the response was YES. [2022-12-13 15:35:40,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40891 conditions, 15070 events. 7660/15070 cut-off events. For 9163/9415 co-relation queries the response was YES. Maximal size of possible extension queue 458. Compared 123007 event pairs, 2135 based on Foata normal form. 1157/15050 useless extension candidates. Maximal degree in co-relation 32430. Up to 7172 conditions per place. [2022-12-13 15:35:40,821 INFO L137 encePairwiseOnDemand]: 331/351 looper letters, 111 selfloop transitions, 26 changer transitions 3/172 dead transitions. [2022-12-13 15:35:40,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 172 transitions, 952 flow [2022-12-13 15:35:40,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:35:40,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:35:40,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 646 transitions. [2022-12-13 15:35:40,823 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6134852801519468 [2022-12-13 15:35:40,823 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 646 transitions. [2022-12-13 15:35:40,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 646 transitions. [2022-12-13 15:35:40,823 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:35:40,823 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 646 transitions. [2022-12-13 15:35:40,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 0 states have call successors, (0), 0 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 15:35:40,825 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:40,825 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:40,826 INFO L175 Difference]: Start difference. First operand has 95 places, 109 transitions, 439 flow. Second operand 3 states and 646 transitions. [2022-12-13 15:35:40,826 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 172 transitions, 952 flow [2022-12-13 15:35:40,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 172 transitions, 936 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 15:35:40,870 INFO L231 Difference]: Finished difference. Result has 96 places, 127 transitions, 609 flow [2022-12-13 15:35:40,870 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=609, PETRI_PLACES=96, PETRI_TRANSITIONS=127} [2022-12-13 15:35:40,871 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 8 predicate places. [2022-12-13 15:35:40,871 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 127 transitions, 609 flow [2022-12-13 15:35:40,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.0) internal successors, (555), 3 states have internal predecessors, (555), 0 states have call successors, (0), 0 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 15:35:40,871 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:35:40,871 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:35:40,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:35:40,871 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-13 15:35:40,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:35:40,872 INFO L85 PathProgramCache]: Analyzing trace with hash -2007889515, now seen corresponding path program 1 times [2022-12-13 15:35:40,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:35:40,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447585440] [2022-12-13 15:35:40,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:35:40,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:35:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:35:40,964 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 15:35:40,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:35:40,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447585440] [2022-12-13 15:35:40,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447585440] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:35:40,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:35:40,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:35:40,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149486892] [2022-12-13 15:35:40,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:35:40,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:35:40,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:35:40,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:35:40,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:35:40,988 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 351 [2022-12-13 15:35:40,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 127 transitions, 609 flow. Second operand has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 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 15:35:40,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:35:40,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 351 [2022-12-13 15:35:40,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:35:41,923 INFO L130 PetriNetUnfolder]: 5628/11797 cut-off events. [2022-12-13 15:35:41,923 INFO L131 PetriNetUnfolder]: For 10069/10278 co-relation queries the response was YES. [2022-12-13 15:35:41,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37859 conditions, 11797 events. 5628/11797 cut-off events. For 10069/10278 co-relation queries the response was YES. Maximal size of possible extension queue 366. Compared 95659 event pairs, 2210 based on Foata normal form. 2/11595 useless extension candidates. Maximal degree in co-relation 28827. Up to 5475 conditions per place. [2022-12-13 15:35:41,951 INFO L137 encePairwiseOnDemand]: 349/351 looper letters, 100 selfloop transitions, 4 changer transitions 28/170 dead transitions. [2022-12-13 15:35:41,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 170 transitions, 1098 flow [2022-12-13 15:35:41,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:35:41,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:35:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 660 transitions. [2022-12-13 15:35:41,953 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6267806267806267 [2022-12-13 15:35:41,953 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 660 transitions. [2022-12-13 15:35:41,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 660 transitions. [2022-12-13 15:35:41,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:35:41,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 660 transitions. [2022-12-13 15:35:41,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 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 15:35:41,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:41,956 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 351.0) internal successors, (1404), 4 states have internal predecessors, (1404), 0 states have call successors, (0), 0 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 15:35:41,956 INFO L175 Difference]: Start difference. First operand has 96 places, 127 transitions, 609 flow. Second operand 3 states and 660 transitions. [2022-12-13 15:35:41,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 170 transitions, 1098 flow [2022-12-13 15:35:41,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 170 transitions, 1060 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:35:41,968 INFO L231 Difference]: Finished difference. Result has 96 places, 122 transitions, 569 flow [2022-12-13 15:35:41,968 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=569, PETRI_PLACES=96, PETRI_TRANSITIONS=122} [2022-12-13 15:35:41,969 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 8 predicate places. [2022-12-13 15:35:41,969 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 122 transitions, 569 flow [2022-12-13 15:35:41,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 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 15:35:41,970 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:35:41,970 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] [2022-12-13 15:35:41,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:35:41,970 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-13 15:35:41,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:35:41,970 INFO L85 PathProgramCache]: Analyzing trace with hash 825098884, now seen corresponding path program 1 times [2022-12-13 15:35:41,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:35:41,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454202934] [2022-12-13 15:35:41,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:35:41,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:35:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:35:42,203 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 15:35:42,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:35:42,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454202934] [2022-12-13 15:35:42,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454202934] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:35:42,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:35:42,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:35:42,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592830738] [2022-12-13 15:35:42,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:35:42,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:35:42,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:35:42,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:35:42,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:35:42,300 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 351 [2022-12-13 15:35:42,301 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 122 transitions, 569 flow. Second operand has 5 states, 5 states have (on average 194.6) internal successors, (973), 5 states have internal predecessors, (973), 0 states have call successors, (0), 0 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 15:35:42,301 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:35:42,301 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 351 [2022-12-13 15:35:42,301 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:35:42,673 INFO L130 PetriNetUnfolder]: 1521/3761 cut-off events. [2022-12-13 15:35:42,673 INFO L131 PetriNetUnfolder]: For 2897/2924 co-relation queries the response was YES. [2022-12-13 15:35:42,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10928 conditions, 3761 events. 1521/3761 cut-off events. For 2897/2924 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 26658 event pairs, 448 based on Foata normal form. 171/3841 useless extension candidates. Maximal degree in co-relation 9293. Up to 2670 conditions per place. [2022-12-13 15:35:42,679 INFO L137 encePairwiseOnDemand]: 346/351 looper letters, 62 selfloop transitions, 7 changer transitions 19/109 dead transitions. [2022-12-13 15:35:42,680 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 109 transitions, 645 flow [2022-12-13 15:35:42,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:35:42,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:35:42,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 830 transitions. [2022-12-13 15:35:42,682 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5911680911680912 [2022-12-13 15:35:42,682 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 830 transitions. [2022-12-13 15:35:42,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 830 transitions. [2022-12-13 15:35:42,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:35:42,683 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 830 transitions. [2022-12-13 15:35:42,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 207.5) internal successors, (830), 4 states have internal predecessors, (830), 0 states have call successors, (0), 0 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 15:35:42,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 351.0) internal successors, (1755), 5 states have internal predecessors, (1755), 0 states have call successors, (0), 0 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 15:35:42,687 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 351.0) internal successors, (1755), 5 states have internal predecessors, (1755), 0 states have call successors, (0), 0 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 15:35:42,687 INFO L175 Difference]: Start difference. First operand has 96 places, 122 transitions, 569 flow. Second operand 4 states and 830 transitions. [2022-12-13 15:35:42,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 109 transitions, 645 flow [2022-12-13 15:35:42,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 109 transitions, 605 flow, removed 13 selfloop flow, removed 5 redundant places. [2022-12-13 15:35:42,694 INFO L231 Difference]: Finished difference. Result has 89 places, 80 transitions, 318 flow [2022-12-13 15:35:42,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=357, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=318, PETRI_PLACES=89, PETRI_TRANSITIONS=80} [2022-12-13 15:35:42,695 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2022-12-13 15:35:42,695 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 80 transitions, 318 flow [2022-12-13 15:35:42,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 194.6) internal successors, (973), 5 states have internal predecessors, (973), 0 states have call successors, (0), 0 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 15:35:42,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:35:42,696 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:35:42,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 15:35:42,696 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2022-12-13 15:35:42,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:35:42,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1178433410, now seen corresponding path program 1 times [2022-12-13 15:35:42,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:35:42,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701706211] [2022-12-13 15:35:42,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:35:42,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:35:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:35:42,872 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 15:35:42,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:35:42,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701706211] [2022-12-13 15:35:42,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701706211] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:35:42,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:35:42,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 15:35:42,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022490769] [2022-12-13 15:35:42,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:35:42,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 15:35:42,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:35:42,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 15:35:42,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:35:42,933 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 351 [2022-12-13 15:35:42,935 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 80 transitions, 318 flow. Second operand has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 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 15:35:42,935 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:35:42,935 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 351 [2022-12-13 15:35:42,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:35:43,142 INFO L130 PetriNetUnfolder]: 598/1718 cut-off events. [2022-12-13 15:35:43,142 INFO L131 PetriNetUnfolder]: For 1281/1281 co-relation queries the response was YES. [2022-12-13 15:35:43,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4893 conditions, 1718 events. 598/1718 cut-off events. For 1281/1281 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 10230 event pairs, 257 based on Foata normal form. 29/1728 useless extension candidates. Maximal degree in co-relation 2367. Up to 1000 conditions per place. [2022-12-13 15:35:43,144 INFO L137 encePairwiseOnDemand]: 333/351 looper letters, 0 selfloop transitions, 0 changer transitions 90/90 dead transitions. [2022-12-13 15:35:43,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 90 transitions, 505 flow [2022-12-13 15:35:43,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:35:43,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 15:35:43,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 788 transitions. [2022-12-13 15:35:43,146 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5612535612535613 [2022-12-13 15:35:43,146 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 788 transitions. [2022-12-13 15:35:43,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 788 transitions. [2022-12-13 15:35:43,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:35:43,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 788 transitions. [2022-12-13 15:35:43,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 197.0) internal successors, (788), 4 states have internal predecessors, (788), 0 states have call successors, (0), 0 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 15:35:43,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 351.0) internal successors, (1755), 5 states have internal predecessors, (1755), 0 states have call successors, (0), 0 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 15:35:43,149 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 351.0) internal successors, (1755), 5 states have internal predecessors, (1755), 0 states have call successors, (0), 0 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 15:35:43,149 INFO L175 Difference]: Start difference. First operand has 89 places, 80 transitions, 318 flow. Second operand 4 states and 788 transitions. [2022-12-13 15:35:43,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 90 transitions, 505 flow [2022-12-13 15:35:43,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 90 transitions, 444 flow, removed 7 selfloop flow, removed 9 redundant places. [2022-12-13 15:35:43,152 INFO L231 Difference]: Finished difference. Result has 79 places, 0 transitions, 0 flow [2022-12-13 15:35:43,152 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=351, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=79, PETRI_TRANSITIONS=0} [2022-12-13 15:35:43,153 INFO L288 CegarLoopForPetriNet]: 88 programPoint places, -9 predicate places. [2022-12-13 15:35:43,153 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 0 transitions, 0 flow [2022-12-13 15:35:43,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 184.0) internal successors, (920), 5 states have internal predecessors, (920), 0 states have call successors, (0), 0 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 15:35:43,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2022-12-13 15:35:43,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2022-12-13 15:35:43,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2022-12-13 15:35:43,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2022-12-13 15:35:43,155 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2022-12-13 15:35:43,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2022-12-13 15:35:43,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2022-12-13 15:35:43,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2022-12-13 15:35:43,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2022-12-13 15:35:43,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2022-12-13 15:35:43,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 24 remaining) [2022-12-13 15:35:43,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 24 remaining) [2022-12-13 15:35:43,156 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2022-12-13 15:35:43,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2022-12-13 15:35:43,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2022-12-13 15:35:43,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2022-12-13 15:35:43,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2022-12-13 15:35:43,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2022-12-13 15:35:43,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2022-12-13 15:35:43,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2022-12-13 15:35:43,157 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2022-12-13 15:35:43,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2022-12-13 15:35:43,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2022-12-13 15:35:43,158 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2022-12-13 15:35:43,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 15:35:43,158 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:35:43,164 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 15:35:43,164 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:35:43,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:35:43 BasicIcfg [2022-12-13 15:35:43,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:35:43,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:35:43,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:35:43,169 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:35:43,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:35:23" (3/4) ... [2022-12-13 15:35:43,172 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 15:35:43,176 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t2_fun [2022-12-13 15:35:43,177 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 15:35:43,181 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-12-13 15:35:43,181 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 15:35:43,181 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 15:35:43,181 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 15:35:43,211 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 15:35:43,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:35:43,212 INFO L158 Benchmark]: Toolchain (without parser) took 20887.83ms. Allocated memory was 119.5MB in the beginning and 2.5GB in the end (delta: 2.4GB). Free memory was 83.7MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 884.2MB. Max. memory is 16.1GB. [2022-12-13 15:35:43,212 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 82.8MB in the end (delta: 21.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:35:43,213 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.18ms. Allocated memory is still 119.5MB. Free memory was 83.3MB in the beginning and 63.2MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 15:35:43,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.28ms. Allocated memory is still 119.5MB. Free memory was 63.2MB in the beginning and 61.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:35:43,213 INFO L158 Benchmark]: Boogie Preprocessor took 22.67ms. Allocated memory is still 119.5MB. Free memory was 61.0MB in the beginning and 59.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:35:43,214 INFO L158 Benchmark]: RCFGBuilder took 437.52ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 59.0MB in the beginning and 111.4MB in the end (delta: -52.4MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-12-13 15:35:43,214 INFO L158 Benchmark]: TraceAbstraction took 20058.13ms. Allocated memory was 144.7MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 110.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 879.1MB. Max. memory is 16.1GB. [2022-12-13 15:35:43,214 INFO L158 Benchmark]: Witness Printer took 43.15ms. Allocated memory is still 2.5GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 15:35:43,216 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 119.5MB. Free memory was 82.9MB in the beginning and 82.8MB in the end (delta: 21.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.18ms. Allocated memory is still 119.5MB. Free memory was 83.3MB in the beginning and 63.2MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.28ms. Allocated memory is still 119.5MB. Free memory was 63.2MB in the beginning and 61.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.67ms. Allocated memory is still 119.5MB. Free memory was 61.0MB in the beginning and 59.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 437.52ms. Allocated memory was 119.5MB in the beginning and 144.7MB in the end (delta: 25.2MB). Free memory was 59.0MB in the beginning and 111.4MB in the end (delta: -52.4MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * TraceAbstraction took 20058.13ms. Allocated memory was 144.7MB in the beginning and 2.5GB in the end (delta: 2.3GB). Free memory was 110.5MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 879.1MB. Max. memory is 16.1GB. * Witness Printer took 43.15ms. Allocated memory is still 2.5GB. Free memory was 1.6GB in the beginning and 1.6GB in the end (delta: 3.1MB). 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: 3.7s, 202 PlacesBefore, 88 PlacesAfterwards, 199 TransitionsBefore, 85 TransitionsAfterwards, 13532 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 87 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 0 ChoiceCompositions, 140 TotalNumberOfCompositions, 63783 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 17559, independent: 16534, independent conditional: 0, independent unconditional: 16534, dependent: 1025, dependent conditional: 0, dependent unconditional: 1025, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6530, independent: 6415, independent conditional: 0, independent unconditional: 6415, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 17559, independent: 10119, independent conditional: 0, independent unconditional: 10119, dependent: 910, dependent conditional: 0, dependent unconditional: 910, unknown: 6530, unknown conditional: 0, unknown unconditional: 6530] , Statistics on independence cache: Total cache size (in pairs): 885, Positive cache size: 814, Positive conditional cache size: 0, Positive unconditional cache size: 814, Negative cache size: 71, Negative conditional cache size: 0, Negative unconditional cache size: 71, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 714]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 718]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 721]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 728]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 729]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 688]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: 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 5 procedures, 280 locations, 24 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: 20.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1158 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 777 mSDsluCounter, 81 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 264 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1930 IncrementalHoareTripleChecker+Invalid, 2194 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 264 mSolverCounterUnsat, 77 mSDtfsCounter, 1930 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=609occurred in iteration=8, InterpolantAutomatonStates: 36, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 207 NumberOfCodeBlocks, 207 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 196 ConstructedInterpolants, 0 QuantifiedInterpolants, 1006 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 15:35:43,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8416301f-b0e8-4327-8ed2-552f3942c305/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE