./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/dekker-b.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_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/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_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/dekker-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/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_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/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 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 --- 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 17:38:20,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:38:20,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:38:20,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:38:20,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:38:20,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:38:20,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:38:20,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:38:20,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:38:20,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:38:20,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:38:20,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:38:20,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:38:20,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:38:20,191 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:38:20,192 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:38:20,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:38:20,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:38:20,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:38:20,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:38:20,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:38:20,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:38:20,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:38:20,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:38:20,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:38:20,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:38:20,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:38:20,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:38:20,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:38:20,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:38:20,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:38:20,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:38:20,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:38:20,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:38:20,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:38:20,211 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:38:20,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:38:20,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:38:20,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:38:20,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:38:20,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:38:20,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 17:38:20,233 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:38:20,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:38:20,234 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:38:20,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:38:20,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:38:20,235 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:38:20,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:38:20,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:38:20,236 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:38:20,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:38:20,236 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:38:20,236 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:38:20,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:38:20,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:38:20,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:38:20,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:38:20,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:38:20,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:38:20,237 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 17:38:20,237 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:38:20,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:38:20,237 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:38:20,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:38:20,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:38:20,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:38:20,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:38:20,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:38:20,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:38:20,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:38:20,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:38:20,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:38:20,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:38:20,239 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:38:20,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:38:20,239 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:38:20,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:38:20,239 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:38:20,239 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_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 [2022-12-13 17:38:20,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:38:20,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:38:20,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:38:20,437 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:38:20,437 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:38:20,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-atomic/dekker-b.i [2022-12-13 17:38:23,012 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:38:23,158 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:38:23,159 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/sv-benchmarks/c/pthread-atomic/dekker-b.i [2022-12-13 17:38:23,166 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/bin/uautomizer-uyxdKDjOR8/data/c292c32a6/49801bbbcc3f4ceb82f3a89091ab0d36/FLAG1a706ff02 [2022-12-13 17:38:23,177 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/bin/uautomizer-uyxdKDjOR8/data/c292c32a6/49801bbbcc3f4ceb82f3a89091ab0d36 [2022-12-13 17:38:23,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:38:23,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:38:23,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:38:23,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:38:23,184 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:38:23,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23af119c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23, skipping insertion in model container [2022-12-13 17:38:23,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,192 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:38:23,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:38:23,502 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_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/sv-benchmarks/c/pthread-atomic/dekker-b.i[30165,30178] [2022-12-13 17:38:23,506 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_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/sv-benchmarks/c/pthread-atomic/dekker-b.i[30411,30424] [2022-12-13 17:38:23,512 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:38:23,522 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:38:23,552 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_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/sv-benchmarks/c/pthread-atomic/dekker-b.i[30165,30178] [2022-12-13 17:38:23,554 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_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/sv-benchmarks/c/pthread-atomic/dekker-b.i[30411,30424] [2022-12-13 17:38:23,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:38:23,588 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:38:23,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23 WrapperNode [2022-12-13 17:38:23,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:38:23,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:38:23,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:38:23,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:38:23,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,630 INFO L138 Inliner]: procedures = 168, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2022-12-13 17:38:23,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:38:23,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:38:23,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:38:23,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:38:23,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,655 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:38:23,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:38:23,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:38:23,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:38:23,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (1/1) ... [2022-12-13 17:38:23,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:38:23,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:38:23,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:38:23,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:38:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:38:23,721 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-13 17:38:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-13 17:38:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-13 17:38:23,722 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-13 17:38:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:38:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:38:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:38:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:38:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:38:23,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:38:23,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:38:23,724 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 17:38:23,822 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:38:23,824 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:38:24,039 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:38:24,046 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:38:24,046 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 17:38:24,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:38:24 BoogieIcfgContainer [2022-12-13 17:38:24,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:38:24,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:38:24,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:38:24,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:38:24,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:38:23" (1/3) ... [2022-12-13 17:38:24,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bea9d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:38:24, skipping insertion in model container [2022-12-13 17:38:24,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:38:23" (2/3) ... [2022-12-13 17:38:24,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bea9d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:38:24, skipping insertion in model container [2022-12-13 17:38:24,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:38:24" (3/3) ... [2022-12-13 17:38:24,054 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker-b.i [2022-12-13 17:38:24,060 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:38:24,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:38:24,068 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-12-13 17:38:24,068 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:38:24,123 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 17:38:24,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 203 transitions, 422 flow [2022-12-13 17:38:24,223 INFO L130 PetriNetUnfolder]: 14/201 cut-off events. [2022-12-13 17:38:24,224 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 17:38:24,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 201 events. 14/201 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 458 event pairs, 0 based on Foata normal form. 0/163 useless extension candidates. Maximal degree in co-relation 145. Up to 3 conditions per place. [2022-12-13 17:38:24,231 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 203 transitions, 422 flow [2022-12-13 17:38:24,237 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 184 places, 191 transitions, 391 flow [2022-12-13 17:38:24,241 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:38:24,250 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 184 places, 191 transitions, 391 flow [2022-12-13 17:38:24,252 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 184 places, 191 transitions, 391 flow [2022-12-13 17:38:24,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 184 places, 191 transitions, 391 flow [2022-12-13 17:38:24,278 INFO L130 PetriNetUnfolder]: 14/191 cut-off events. [2022-12-13 17:38:24,278 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 17:38:24,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 191 events. 14/191 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 456 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 145. Up to 3 conditions per place. [2022-12-13 17:38:24,283 INFO L119 LiptonReduction]: Number of co-enabled transitions 12096 [2022-12-13 17:38:26,558 INFO L134 LiptonReduction]: Checked pairs total: 71484 [2022-12-13 17:38:26,559 INFO L136 LiptonReduction]: Total number of compositions: 113 [2022-12-13 17:38:26,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:38:26,575 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;@248f5981, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:38:26,575 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2022-12-13 17:38:26,576 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 17:38:26,576 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:38:26,576 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:26,577 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 17:38:26,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-12-13 17:38:26,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:26,581 INFO L85 PathProgramCache]: Analyzing trace with hash 739, now seen corresponding path program 1 times [2022-12-13 17:38:26,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:26,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973579950] [2022-12-13 17:38:26,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:26,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:26,661 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 17:38:26,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:26,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973579950] [2022-12-13 17:38:26,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973579950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:26,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:26,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 17:38:26,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238724674] [2022-12-13 17:38:26,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:26,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:38:26,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:26,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:38:26,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:38:26,687 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 190 out of 316 [2022-12-13 17:38:26,689 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 103 transitions, 215 flow. Second operand has 2 states, 2 states have (on average 190.5) internal successors, (381), 2 states have internal predecessors, (381), 0 states have call successors, (0), 0 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 17:38:26,689 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:26,689 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 190 of 316 [2022-12-13 17:38:26,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:26,870 INFO L130 PetriNetUnfolder]: 587/1571 cut-off events. [2022-12-13 17:38:26,871 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-12-13 17:38:26,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2561 conditions, 1571 events. 587/1571 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11403 event pairs, 501 based on Foata normal form. 142/1528 useless extension candidates. Maximal degree in co-relation 2425. Up to 947 conditions per place. [2022-12-13 17:38:26,879 INFO L137 encePairwiseOnDemand]: 307/316 looper letters, 33 selfloop transitions, 0 changer transitions 0/93 dead transitions. [2022-12-13 17:38:26,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 93 transitions, 261 flow [2022-12-13 17:38:26,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:38:26,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 17:38:26,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 422 transitions. [2022-12-13 17:38:26,893 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6677215189873418 [2022-12-13 17:38:26,894 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 422 transitions. [2022-12-13 17:38:26,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 422 transitions. [2022-12-13 17:38:26,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:26,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 422 transitions. [2022-12-13 17:38:26,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 211.0) internal successors, (422), 2 states have internal predecessors, (422), 0 states have call successors, (0), 0 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 17:38:26,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 316.0) internal successors, (948), 3 states have internal predecessors, (948), 0 states have call successors, (0), 0 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 17:38:26,906 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 316.0) internal successors, (948), 3 states have internal predecessors, (948), 0 states have call successors, (0), 0 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 17:38:26,908 INFO L175 Difference]: Start difference. First operand has 99 places, 103 transitions, 215 flow. Second operand 2 states and 422 transitions. [2022-12-13 17:38:26,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 93 transitions, 261 flow [2022-12-13 17:38:26,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 93 transitions, 256 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 17:38:26,915 INFO L231 Difference]: Finished difference. Result has 92 places, 93 transitions, 190 flow [2022-12-13 17:38:26,917 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=190, PETRI_PLACES=92, PETRI_TRANSITIONS=93} [2022-12-13 17:38:26,920 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -7 predicate places. [2022-12-13 17:38:26,920 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 93 transitions, 190 flow [2022-12-13 17:38:26,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 190.5) internal successors, (381), 2 states have internal predecessors, (381), 0 states have call successors, (0), 0 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 17:38:26,921 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:26,921 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:38:26,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:38:26,921 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-12-13 17:38:26,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:26,921 INFO L85 PathProgramCache]: Analyzing trace with hash 702642565, now seen corresponding path program 1 times [2022-12-13 17:38:26,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:26,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389923719] [2022-12-13 17:38:26,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:26,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:26,997 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 17:38:26,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:26,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389923719] [2022-12-13 17:38:26,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389923719] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:26,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:26,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:38:26,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588159978] [2022-12-13 17:38:26,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:27,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:38:27,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:27,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:38:27,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:38:27,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 316 [2022-12-13 17:38:27,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 93 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 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 17:38:27,031 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:27,031 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 316 [2022-12-13 17:38:27,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:27,241 INFO L130 PetriNetUnfolder]: 810/2093 cut-off events. [2022-12-13 17:38:27,241 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 17:38:27,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3410 conditions, 2093 events. 810/2093 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 15284 event pairs, 625 based on Foata normal form. 0/1812 useless extension candidates. Maximal degree in co-relation 3407. Up to 1209 conditions per place. [2022-12-13 17:38:27,249 INFO L137 encePairwiseOnDemand]: 312/316 looper letters, 53 selfloop transitions, 3 changer transitions 0/112 dead transitions. [2022-12-13 17:38:27,249 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 112 transitions, 342 flow [2022-12-13 17:38:27,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:38:27,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:38:27,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 600 transitions. [2022-12-13 17:38:27,252 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6329113924050633 [2022-12-13 17:38:27,252 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 600 transitions. [2022-12-13 17:38:27,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 600 transitions. [2022-12-13 17:38:27,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:27,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 600 transitions. [2022-12-13 17:38:27,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 200.0) internal successors, (600), 3 states have internal predecessors, (600), 0 states have call successors, (0), 0 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 17:38:27,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 17:38:27,256 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 17:38:27,256 INFO L175 Difference]: Start difference. First operand has 92 places, 93 transitions, 190 flow. Second operand 3 states and 600 transitions. [2022-12-13 17:38:27,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 112 transitions, 342 flow [2022-12-13 17:38:27,257 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 112 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:38:27,258 INFO L231 Difference]: Finished difference. Result has 95 places, 95 transitions, 209 flow [2022-12-13 17:38:27,258 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=92, 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=209, PETRI_PLACES=95, PETRI_TRANSITIONS=95} [2022-12-13 17:38:27,258 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -4 predicate places. [2022-12-13 17:38:27,259 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 95 transitions, 209 flow [2022-12-13 17:38:27,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.66666666666666) internal successors, (548), 3 states have internal predecessors, (548), 0 states have call successors, (0), 0 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 17:38:27,259 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:27,259 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:27,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:38:27,259 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-12-13 17:38:27,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:27,260 INFO L85 PathProgramCache]: Analyzing trace with hash 929772928, now seen corresponding path program 1 times [2022-12-13 17:38:27,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:27,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880115627] [2022-12-13 17:38:27,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:27,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:27,302 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 17:38:27,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:27,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880115627] [2022-12-13 17:38:27,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880115627] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:27,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:27,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:38:27,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845777406] [2022-12-13 17:38:27,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:27,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:38:27,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:27,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:38:27,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:38:27,326 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 316 [2022-12-13 17:38:27,327 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 95 transitions, 209 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 17:38:27,328 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:27,328 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 316 [2022-12-13 17:38:27,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:27,639 INFO L130 PetriNetUnfolder]: 1396/3948 cut-off events. [2022-12-13 17:38:27,639 INFO L131 PetriNetUnfolder]: For 70/122 co-relation queries the response was YES. [2022-12-13 17:38:27,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6276 conditions, 3948 events. 1396/3948 cut-off events. For 70/122 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 34177 event pairs, 292 based on Foata normal form. 30/3449 useless extension candidates. Maximal degree in co-relation 6271. Up to 1172 conditions per place. [2022-12-13 17:38:27,655 INFO L137 encePairwiseOnDemand]: 309/316 looper letters, 64 selfloop transitions, 6 changer transitions 0/127 dead transitions. [2022-12-13 17:38:27,655 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 127 transitions, 416 flow [2022-12-13 17:38:27,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:38:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:38:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 619 transitions. [2022-12-13 17:38:27,657 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6529535864978903 [2022-12-13 17:38:27,657 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 619 transitions. [2022-12-13 17:38:27,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 619 transitions. [2022-12-13 17:38:27,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:27,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 619 transitions. [2022-12-13 17:38:27,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.33333333333334) internal successors, (619), 3 states have internal predecessors, (619), 0 states have call successors, (0), 0 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 17:38:27,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 17:38:27,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 17:38:27,660 INFO L175 Difference]: Start difference. First operand has 95 places, 95 transitions, 209 flow. Second operand 3 states and 619 transitions. [2022-12-13 17:38:27,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 127 transitions, 416 flow [2022-12-13 17:38:27,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 127 transitions, 413 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:38:27,662 INFO L231 Difference]: Finished difference. Result has 98 places, 101 transitions, 256 flow [2022-12-13 17:38:27,662 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=98, PETRI_TRANSITIONS=101} [2022-12-13 17:38:27,663 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, -1 predicate places. [2022-12-13 17:38:27,663 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 101 transitions, 256 flow [2022-12-13 17:38:27,663 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 17:38:27,663 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:27,663 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:27,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:38:27,663 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-12-13 17:38:27,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:27,664 INFO L85 PathProgramCache]: Analyzing trace with hash 960270102, now seen corresponding path program 1 times [2022-12-13 17:38:27,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:27,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22319228] [2022-12-13 17:38:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:27,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:27,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:27,696 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 17:38:27,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:27,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22319228] [2022-12-13 17:38:27,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22319228] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:27,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:27,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:38:27,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414126067] [2022-12-13 17:38:27,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:27,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:38:27,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:27,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:38:27,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:38:27,714 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 316 [2022-12-13 17:38:27,716 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 101 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 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 17:38:27,716 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:27,716 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 316 [2022-12-13 17:38:27,716 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:28,017 INFO L130 PetriNetUnfolder]: 1419/3747 cut-off events. [2022-12-13 17:38:28,017 INFO L131 PetriNetUnfolder]: For 621/701 co-relation queries the response was YES. [2022-12-13 17:38:28,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6601 conditions, 3747 events. 1419/3747 cut-off events. For 621/701 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 31280 event pairs, 904 based on Foata normal form. 44/3262 useless extension candidates. Maximal degree in co-relation 6595. Up to 2086 conditions per place. [2022-12-13 17:38:28,039 INFO L137 encePairwiseOnDemand]: 312/316 looper letters, 55 selfloop transitions, 5 changer transitions 0/119 dead transitions. [2022-12-13 17:38:28,039 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 119 transitions, 421 flow [2022-12-13 17:38:28,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:38:28,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:38:28,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 597 transitions. [2022-12-13 17:38:28,042 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.629746835443038 [2022-12-13 17:38:28,042 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 597 transitions. [2022-12-13 17:38:28,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 597 transitions. [2022-12-13 17:38:28,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:28,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 597 transitions. [2022-12-13 17:38:28,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.0) internal successors, (597), 3 states have internal predecessors, (597), 0 states have call successors, (0), 0 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 17:38:28,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 17:38:28,047 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 17:38:28,047 INFO L175 Difference]: Start difference. First operand has 98 places, 101 transitions, 256 flow. Second operand 3 states and 597 transitions. [2022-12-13 17:38:28,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 119 transitions, 421 flow [2022-12-13 17:38:28,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 119 transitions, 407 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:38:28,052 INFO L231 Difference]: Finished difference. Result has 99 places, 104 transitions, 277 flow [2022-12-13 17:38:28,052 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=99, PETRI_TRANSITIONS=104} [2022-12-13 17:38:28,053 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 0 predicate places. [2022-12-13 17:38:28,053 INFO L495 AbstractCegarLoop]: Abstraction has has 99 places, 104 transitions, 277 flow [2022-12-13 17:38:28,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 183.33333333333334) internal successors, (550), 3 states have internal predecessors, (550), 0 states have call successors, (0), 0 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 17:38:28,053 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:28,053 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:28,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:38:28,054 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-12-13 17:38:28,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:28,054 INFO L85 PathProgramCache]: Analyzing trace with hash -598231720, now seen corresponding path program 1 times [2022-12-13 17:38:28,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:28,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500029028] [2022-12-13 17:38:28,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:28,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:28,091 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 17:38:28,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:28,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500029028] [2022-12-13 17:38:28,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500029028] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:28,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:28,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:38:28,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768469682] [2022-12-13 17:38:28,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:28,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:38:28,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:28,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:38:28,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:38:28,106 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 316 [2022-12-13 17:38:28,107 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 104 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 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 17:38:28,107 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:28,107 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 316 [2022-12-13 17:38:28,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:28,607 INFO L130 PetriNetUnfolder]: 2518/6878 cut-off events. [2022-12-13 17:38:28,607 INFO L131 PetriNetUnfolder]: For 848/930 co-relation queries the response was YES. [2022-12-13 17:38:28,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11780 conditions, 6878 events. 2518/6878 cut-off events. For 848/930 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 65461 event pairs, 559 based on Foata normal form. 5/5928 useless extension candidates. Maximal degree in co-relation 11773. Up to 2001 conditions per place. [2022-12-13 17:38:28,648 INFO L137 encePairwiseOnDemand]: 309/316 looper letters, 70 selfloop transitions, 7 changer transitions 0/137 dead transitions. [2022-12-13 17:38:28,648 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 137 transitions, 514 flow [2022-12-13 17:38:28,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:38:28,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:38:28,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 618 transitions. [2022-12-13 17:38:28,650 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6518987341772152 [2022-12-13 17:38:28,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 618 transitions. [2022-12-13 17:38:28,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 618 transitions. [2022-12-13 17:38:28,651 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:28,651 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 618 transitions. [2022-12-13 17:38:28,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 0 states have call successors, (0), 0 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 17:38:28,654 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 17:38:28,655 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 17:38:28,655 INFO L175 Difference]: Start difference. First operand has 99 places, 104 transitions, 277 flow. Second operand 3 states and 618 transitions. [2022-12-13 17:38:28,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 137 transitions, 514 flow [2022-12-13 17:38:28,658 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 137 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:38:28,660 INFO L231 Difference]: Finished difference. Result has 102 places, 111 transitions, 336 flow [2022-12-13 17:38:28,660 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=102, PETRI_TRANSITIONS=111} [2022-12-13 17:38:28,661 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 3 predicate places. [2022-12-13 17:38:28,661 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 111 transitions, 336 flow [2022-12-13 17:38:28,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 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 17:38:28,661 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:28,661 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:28,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:38:28,662 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-12-13 17:38:28,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:28,662 INFO L85 PathProgramCache]: Analyzing trace with hash 621774207, now seen corresponding path program 1 times [2022-12-13 17:38:28,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:28,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304617985] [2022-12-13 17:38:28,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:28,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:38:28,702 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 17:38:28,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:38:28,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304617985] [2022-12-13 17:38:28,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304617985] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:38:28,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:38:28,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:38:28,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322105320] [2022-12-13 17:38:28,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:38:28,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:38:28,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:38:28,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:38:28,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:38:28,709 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 184 out of 316 [2022-12-13 17:38:28,710 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 111 transitions, 336 flow. Second operand has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 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 17:38:28,710 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:38:28,711 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 184 of 316 [2022-12-13 17:38:28,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:38:29,030 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([542] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][19], [146#L725-4true, 220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 142#L694true, 55#L716true, Black: 218#true]) [2022-12-13 17:38:29,031 INFO L383 tUnfolder$Statistics]: this new event has 34 ancestors and is cut-off event [2022-12-13 17:38:29,031 INFO L386 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2022-12-13 17:38:29,031 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2022-12-13 17:38:29,031 INFO L386 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2022-12-13 17:38:29,038 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([542] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][19], [220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 71#L726-6true, 142#L694true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 55#L716true, Black: 218#true]) [2022-12-13 17:38:29,038 INFO L383 tUnfolder$Statistics]: this new event has 35 ancestors and is cut-off event [2022-12-13 17:38:29,038 INFO L386 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2022-12-13 17:38:29,038 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2022-12-13 17:38:29,039 INFO L386 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2022-12-13 17:38:29,056 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([640] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [146#L725-4true, 220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 10#L700-2true, 55#L716true, Black: 218#true]) [2022-12-13 17:38:29,056 INFO L383 tUnfolder$Statistics]: this new event has 36 ancestors and is cut-off event [2022-12-13 17:38:29,056 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 17:38:29,056 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-12-13 17:38:29,056 INFO L386 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2022-12-13 17:38:29,062 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([640] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 71#L726-6true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 55#L716true, Black: 218#true, 10#L700-2true]) [2022-12-13 17:38:29,062 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2022-12-13 17:38:29,062 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 17:38:29,062 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 17:38:29,062 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2022-12-13 17:38:29,066 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([542] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][19], [146#L725-4true, 220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, 169#L716-6true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 142#L694true, Black: 218#true]) [2022-12-13 17:38:29,067 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2022-12-13 17:38:29,067 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2022-12-13 17:38:29,067 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 17:38:29,067 INFO L386 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2022-12-13 17:38:29,075 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([542] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][19], [220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 169#L716-6true, 71#L726-6true, 142#L694true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 218#true]) [2022-12-13 17:38:29,075 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2022-12-13 17:38:29,075 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2022-12-13 17:38:29,075 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-12-13 17:38:29,075 INFO L386 tUnfolder$Statistics]: existing Event has 23 ancestors and is cut-off event [2022-12-13 17:38:29,089 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([640] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [146#L725-4true, 220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, 169#L716-6true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 218#true, 10#L700-2true]) [2022-12-13 17:38:29,089 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2022-12-13 17:38:29,089 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2022-12-13 17:38:29,089 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2022-12-13 17:38:29,089 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2022-12-13 17:38:29,090 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([542] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][19], [146#L725-4true, 220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 81#L717-2true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 142#L694true, Black: 218#true]) [2022-12-13 17:38:29,090 INFO L383 tUnfolder$Statistics]: this new event has 39 ancestors and is cut-off event [2022-12-13 17:38:29,090 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2022-12-13 17:38:29,090 INFO L386 tUnfolder$Statistics]: existing Event has 24 ancestors and is cut-off event [2022-12-13 17:38:29,090 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2022-12-13 17:38:29,097 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([640] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 169#L716-6true, 71#L726-6true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 218#true, 10#L700-2true]) [2022-12-13 17:38:29,097 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2022-12-13 17:38:29,097 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2022-12-13 17:38:29,097 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2022-12-13 17:38:29,097 INFO L386 tUnfolder$Statistics]: existing Event has 31 ancestors and is cut-off event [2022-12-13 17:38:29,098 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([542] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][19], [220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 71#L726-6true, 81#L717-2true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 142#L694true, Black: 218#true]) [2022-12-13 17:38:29,098 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2022-12-13 17:38:29,098 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2022-12-13 17:38:29,098 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2022-12-13 17:38:29,098 INFO L386 tUnfolder$Statistics]: existing Event has 31 ancestors and is cut-off event [2022-12-13 17:38:29,102 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([542] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][19], [146#L725-4true, 220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 133#L718true, 142#L694true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 218#true]) [2022-12-13 17:38:29,102 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2022-12-13 17:38:29,102 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2022-12-13 17:38:29,102 INFO L386 tUnfolder$Statistics]: existing Event has 25 ancestors and is cut-off event [2022-12-13 17:38:29,102 INFO L386 tUnfolder$Statistics]: existing Event has 31 ancestors and is cut-off event [2022-12-13 17:38:29,102 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([604] L718-1-->L718-3: Formula: (= |v_thr2Thread1of1ForFork1_#t~nondet14_13| |v_#race~flag2~0_16|) InVars {} OutVars{thr2Thread1of1ForFork1_#t~nondet14=|v_thr2Thread1of1ForFork1_#t~nondet14_13|, #race~flag2~0=|v_#race~flag2~0_16|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_#t~nondet14, #race~flag2~0][119], [146#L725-4true, 220#(= |#race~flag1~0| 0), Black: 209#(= |#race~flag2~0| 0), thr2Thread1of1ForFork1InUse, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 149#L718-3true, 226#(= ~flag2~0 0), Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 121#L693-2true, Black: 218#true]) [2022-12-13 17:38:29,102 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2022-12-13 17:38:29,103 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2022-12-13 17:38:29,103 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2022-12-13 17:38:29,103 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2022-12-13 17:38:29,105 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([542] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][19], [220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 133#L718true, 71#L726-6true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 142#L694true, Black: 218#true]) [2022-12-13 17:38:29,105 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2022-12-13 17:38:29,106 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2022-12-13 17:38:29,106 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2022-12-13 17:38:29,106 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2022-12-13 17:38:29,106 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([604] L718-1-->L718-3: Formula: (= |v_thr2Thread1of1ForFork1_#t~nondet14_13| |v_#race~flag2~0_16|) InVars {} OutVars{thr2Thread1of1ForFork1_#t~nondet14=|v_thr2Thread1of1ForFork1_#t~nondet14_13|, #race~flag2~0=|v_#race~flag2~0_16|} AuxVars[] AssignedVars[thr2Thread1of1ForFork1_#t~nondet14, #race~flag2~0][119], [220#(= |#race~flag1~0| 0), Black: 209#(= |#race~flag2~0| 0), thr2Thread1of1ForFork1InUse, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 71#L726-6true, 149#L718-3true, 226#(= ~flag2~0 0), 121#L693-2true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 218#true]) [2022-12-13 17:38:29,106 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is cut-off event [2022-12-13 17:38:29,106 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-12-13 17:38:29,114 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-12-13 17:38:29,114 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2022-12-13 17:38:29,119 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([640] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [146#L725-4true, 220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 81#L717-2true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 10#L700-2true, Black: 218#true]) [2022-12-13 17:38:29,119 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2022-12-13 17:38:29,119 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2022-12-13 17:38:29,119 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2022-12-13 17:38:29,119 INFO L386 tUnfolder$Statistics]: existing Event has 26 ancestors and is cut-off event [2022-12-13 17:38:29,121 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([640] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 71#L726-6true, 81#L717-2true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 218#true, 10#L700-2true]) [2022-12-13 17:38:29,121 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is cut-off event [2022-12-13 17:38:29,121 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-12-13 17:38:29,122 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-12-13 17:38:29,122 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2022-12-13 17:38:29,125 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([640] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [146#L725-4true, 220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 133#L718true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 10#L700-2true, Black: 218#true]) [2022-12-13 17:38:29,125 INFO L383 tUnfolder$Statistics]: this new event has 42 ancestors and is cut-off event [2022-12-13 17:38:29,125 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-12-13 17:38:29,125 INFO L386 tUnfolder$Statistics]: existing Event has 27 ancestors and is cut-off event [2022-12-13 17:38:29,125 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2022-12-13 17:38:29,126 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([640] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [146#L725-4true, 220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 199#true, 12#L718-1true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 226#(= ~flag2~0 0), Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), 10#L700-2true, Black: 218#true]) [2022-12-13 17:38:29,126 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is cut-off event [2022-12-13 17:38:29,126 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2022-12-13 17:38:29,126 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2022-12-13 17:38:29,126 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2022-12-13 17:38:29,127 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([640] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][25], [220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 224#true, 199#true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 133#L718true, 71#L726-6true, Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 218#true, 10#L700-2true]) [2022-12-13 17:38:29,127 INFO L383 tUnfolder$Statistics]: this new event has 43 ancestors and is cut-off event [2022-12-13 17:38:29,127 INFO L386 tUnfolder$Statistics]: existing Event has 34 ancestors and is cut-off event [2022-12-13 17:38:29,127 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2022-12-13 17:38:29,127 INFO L386 tUnfolder$Statistics]: existing Event has 28 ancestors and is cut-off event [2022-12-13 17:38:29,127 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([640] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6=|v_thr1Thread1of1ForFork0_#t~nondet6_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6][26], [220#(= |#race~flag1~0| 0), Black: 207#true, thr2Thread1of1ForFork1InUse, 199#true, 12#L718-1true, Black: 215#(= |thr2Thread1of1ForFork1_#t~nondet9| |#race~flag2~0|), 71#L726-6true, 226#(= ~flag2~0 0), Black: 204#(= |thr1Thread1of1ForFork0_#t~nondet3| |#race~flag1~0|), Black: 218#true, 10#L700-2true]) [2022-12-13 17:38:29,127 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is cut-off event [2022-12-13 17:38:29,127 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-12-13 17:38:29,127 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-12-13 17:38:29,127 INFO L386 tUnfolder$Statistics]: existing Event has 35 ancestors and is cut-off event [2022-12-13 17:38:29,134 INFO L130 PetriNetUnfolder]: 2529/6669 cut-off events. [2022-12-13 17:38:29,134 INFO L131 PetriNetUnfolder]: For 1015/1121 co-relation queries the response was YES. [2022-12-13 17:38:29,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12033 conditions, 6669 events. 2529/6669 cut-off events. For 1015/1121 co-relation queries the response was YES. Maximal size of possible extension queue 287. Compared 61536 event pairs, 835 based on Foata normal form. 86/5845 useless extension candidates. Maximal degree in co-relation 12025. Up to 2435 conditions per place. [2022-12-13 17:38:29,163 INFO L137 encePairwiseOnDemand]: 310/316 looper letters, 56 selfloop transitions, 5 changer transitions 0/129 dead transitions. [2022-12-13 17:38:29,163 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 129 transitions, 511 flow [2022-12-13 17:38:29,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:38:29,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 17:38:29,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 604 transitions. [2022-12-13 17:38:29,165 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6371308016877637 [2022-12-13 17:38:29,165 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 604 transitions. [2022-12-13 17:38:29,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 604 transitions. [2022-12-13 17:38:29,166 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:38:29,166 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 604 transitions. [2022-12-13 17:38:29,167 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 201.33333333333334) internal successors, (604), 3 states have internal predecessors, (604), 0 states have call successors, (0), 0 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 17:38:29,169 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 17:38:29,169 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 0 states have call successors, (0), 0 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 17:38:29,169 INFO L175 Difference]: Start difference. First operand has 102 places, 111 transitions, 336 flow. Second operand 3 states and 604 transitions. [2022-12-13 17:38:29,170 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 129 transitions, 511 flow [2022-12-13 17:38:29,173 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 129 transitions, 493 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 17:38:29,174 INFO L231 Difference]: Finished difference. Result has 103 places, 111 transitions, 339 flow [2022-12-13 17:38:29,174 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=339, PETRI_PLACES=103, PETRI_TRANSITIONS=111} [2022-12-13 17:38:29,175 INFO L288 CegarLoopForPetriNet]: 99 programPoint places, 4 predicate places. [2022-12-13 17:38:29,175 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 111 transitions, 339 flow [2022-12-13 17:38:29,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 185.66666666666666) internal successors, (557), 3 states have internal predecessors, (557), 0 states have call successors, (0), 0 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 17:38:29,176 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:38:29,176 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:29,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:38:29,176 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2022-12-13 17:38:29,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:38:29,177 INFO L85 PathProgramCache]: Analyzing trace with hash -2061478836, now seen corresponding path program 1 times [2022-12-13 17:38:29,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:38:29,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724225206] [2022-12-13 17:38:29,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:38:29,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:38:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:38:29,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:38:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:38:29,226 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:38:29,227 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:38:29,228 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2022-12-13 17:38:29,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2022-12-13 17:38:29,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2022-12-13 17:38:29,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2022-12-13 17:38:29,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2022-12-13 17:38:29,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2022-12-13 17:38:29,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2022-12-13 17:38:29,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2022-12-13 17:38:29,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2022-12-13 17:38:29,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2022-12-13 17:38:29,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2022-12-13 17:38:29,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2022-12-13 17:38:29,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2022-12-13 17:38:29,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2022-12-13 17:38:29,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2022-12-13 17:38:29,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2022-12-13 17:38:29,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2022-12-13 17:38:29,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2022-12-13 17:38:29,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2022-12-13 17:38:29,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2022-12-13 17:38:29,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2022-12-13 17:38:29,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2022-12-13 17:38:29,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2022-12-13 17:38:29,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2022-12-13 17:38:29,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2022-12-13 17:38:29,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 46 remaining) [2022-12-13 17:38:29,233 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 46 remaining) [2022-12-13 17:38:29,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2022-12-13 17:38:29,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2022-12-13 17:38:29,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2022-12-13 17:38:29,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2022-12-13 17:38:29,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2022-12-13 17:38:29,234 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2022-12-13 17:38:29,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2022-12-13 17:38:29,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2022-12-13 17:38:29,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2022-12-13 17:38:29,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2022-12-13 17:38:29,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2022-12-13 17:38:29,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2022-12-13 17:38:29,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2022-12-13 17:38:29,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2022-12-13 17:38:29,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2022-12-13 17:38:29,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2022-12-13 17:38:29,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2022-12-13 17:38:29,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2022-12-13 17:38:29,237 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2022-12-13 17:38:29,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:38:29,238 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:38:29,245 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:38:29,245 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:38:29,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:38:29 BasicIcfg [2022-12-13 17:38:29,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:38:29,273 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:38:29,273 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:38:29,273 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:38:29,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:38:24" (3/4) ... [2022-12-13 17:38:29,275 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 17:38:29,276 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:38:29,276 INFO L158 Benchmark]: Toolchain (without parser) took 6096.08ms. Allocated memory was 146.8MB in the beginning and 270.5MB in the end (delta: 123.7MB). Free memory was 109.0MB in the beginning and 131.8MB in the end (delta: -22.8MB). Peak memory consumption was 101.8MB. Max. memory is 16.1GB. [2022-12-13 17:38:29,276 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:38:29,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.25ms. Allocated memory is still 146.8MB. Free memory was 109.0MB in the beginning and 104.2MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 17:38:29,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.51ms. Allocated memory is still 146.8MB. Free memory was 104.2MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:38:29,277 INFO L158 Benchmark]: Boogie Preprocessor took 28.60ms. Allocated memory is still 146.8MB. Free memory was 102.2MB in the beginning and 100.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:38:29,277 INFO L158 Benchmark]: RCFGBuilder took 388.04ms. Allocated memory is still 146.8MB. Free memory was 100.1MB in the beginning and 82.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 17:38:29,277 INFO L158 Benchmark]: TraceAbstraction took 5222.25ms. Allocated memory was 146.8MB in the beginning and 270.5MB in the end (delta: 123.7MB). Free memory was 81.6MB in the beginning and 131.8MB in the end (delta: -50.2MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. [2022-12-13 17:38:29,278 INFO L158 Benchmark]: Witness Printer took 3.05ms. Allocated memory is still 270.5MB. Free memory is still 131.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:38:29,279 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.25ms. Allocated memory is still 146.8MB. Free memory was 109.0MB in the beginning and 104.2MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.51ms. Allocated memory is still 146.8MB. Free memory was 104.2MB in the beginning and 102.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.60ms. Allocated memory is still 146.8MB. Free memory was 102.2MB in the beginning and 100.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 388.04ms. Allocated memory is still 146.8MB. Free memory was 100.1MB in the beginning and 82.2MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5222.25ms. Allocated memory was 146.8MB in the beginning and 270.5MB in the end (delta: 123.7MB). Free memory was 81.6MB in the beginning and 131.8MB in the end (delta: -50.2MB). Peak memory consumption was 75.4MB. Max. memory is 16.1GB. * Witness Printer took 3.05ms. Allocated memory is still 270.5MB. Free memory is still 131.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 184 PlacesBefore, 99 PlacesAfterwards, 191 TransitionsBefore, 103 TransitionsAfterwards, 12096 CoEnabledTransitionPairs, 7 FixpointIterations, 41 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 113 TotalNumberOfCompositions, 71484 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25886, independent: 24701, independent conditional: 0, independent unconditional: 24701, dependent: 1185, dependent conditional: 0, dependent unconditional: 1185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5725, independent: 5606, independent conditional: 0, independent unconditional: 5606, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25886, independent: 19095, independent conditional: 0, independent unconditional: 19095, dependent: 1066, dependent conditional: 0, dependent unconditional: 1066, unknown: 5725, unknown conditional: 0, unknown unconditional: 5725] , Statistics on independence cache: Total cache size (in pairs): 1512, Positive cache size: 1427, Positive conditional cache size: 0, Positive unconditional cache size: 1427, Negative cache size: 85, Negative conditional cache size: 0, Negative unconditional cache size: 85, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int flag1 = 0, flag2 = 0; [L689] 0 int turn; [L690] 0 int x; [L722] 0 pthread_t t1, t2; [L723] EXPR 0 0<=turn [L723] EXPR 0 0<=turn && turn<=1 [L723] EXPR 0 turn<=1 [L723] EXPR 0 0<=turn && turn<=1 [L723] CALL 0 assume_abort_if_not(0<=turn && turn<=1) [L3] COND FALSE 0 !(!cond) [L723] RET 0 assume_abort_if_not(0<=turn && turn<=1) [L724] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, turn=0, x=0] [L692] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L725] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L707] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, flag2 = 1=49, turn=0, x=0] Now there is a data race on ~flag2~0 between C: flag2 = 1 [707] and C: flag2 >= 1 [693] - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 308 locations, 46 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: 5.1s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 260 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 139 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 541 IncrementalHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 43 mSDtfsCounter, 541 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=339occurred in iteration=6, InterpolantAutomatonStates: 17, 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, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate proved your program to be incorrect! [2022-12-13 17:38:29,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a3f3b2-859f-4985-9eae-8bff9f43ef60/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE