./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longest.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/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_03489115-4895-45a9-af76-becbe1422def/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longest.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/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_03489115-4895-45a9-af76-becbe1422def/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 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d --- 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 13:57:58,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:57:58,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:57:58,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:57:58,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:57:58,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:57:58,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:57:58,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:57:58,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:57:58,302 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:57:58,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:57:58,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:57:58,304 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:57:58,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:57:58,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:57:58,306 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:57:58,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:57:58,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:57:58,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:57:58,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:57:58,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:57:58,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:57:58,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:57:58,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:57:58,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:57:58,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:57:58,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:57:58,320 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:57:58,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:57:58,321 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:57:58,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:57:58,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:57:58,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:57:58,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:57:58,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:57:58,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:57:58,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:57:58,325 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:57:58,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:57:58,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:57:58,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:57:58,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 13:57:58,342 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:57:58,342 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:57:58,342 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:57:58,342 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:57:58,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:57:58,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:57:58,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:57:58,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:57:58,349 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:57:58,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:57:58,350 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:57:58,350 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:57:58,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:57:58,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:57:58,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:57:58,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:57:58,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:57:58,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:57:58,351 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 13:57:58,351 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:57:58,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:57:58,351 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:57:58,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:57:58,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:57:58,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:57:58,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:57:58,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:57:58,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:57:58,352 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:57:58,352 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:57:58,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:57:58,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:57:58,353 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:57:58,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:57:58,353 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:57:58,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:57:58,353 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:57:58,354 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_03489115-4895-45a9-af76-becbe1422def/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d [2022-12-13 13:57:58,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:57:58,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:57:58,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:57:58,539 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:57:58,539 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:57:58,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/queue_ok_longest.i [2022-12-13 13:58:01,078 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:58:01,248 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:58:01,248 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/sv-benchmarks/c/pthread/queue_ok_longest.i [2022-12-13 13:58:01,258 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/bin/uautomizer-uyxdKDjOR8/data/b785cb910/94cd9e9cab9a4a78b4114699915573ff/FLAG698e9934b [2022-12-13 13:58:01,269 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/bin/uautomizer-uyxdKDjOR8/data/b785cb910/94cd9e9cab9a4a78b4114699915573ff [2022-12-13 13:58:01,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:58:01,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:58:01,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:58:01,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:58:01,276 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:58:01,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64cd2f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01, skipping insertion in model container [2022-12-13 13:58:01,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:58:01,323 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:58:01,630 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_03489115-4895-45a9-af76-becbe1422def/sv-benchmarks/c/pthread/queue_ok_longest.i[43280,43293] [2022-12-13 13:58:01,633 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_03489115-4895-45a9-af76-becbe1422def/sv-benchmarks/c/pthread/queue_ok_longest.i[43553,43566] [2022-12-13 13:58:01,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:58:01,644 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:58:01,684 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_03489115-4895-45a9-af76-becbe1422def/sv-benchmarks/c/pthread/queue_ok_longest.i[43280,43293] [2022-12-13 13:58:01,686 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_03489115-4895-45a9-af76-becbe1422def/sv-benchmarks/c/pthread/queue_ok_longest.i[43553,43566] [2022-12-13 13:58:01,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:58:01,724 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:58:01,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01 WrapperNode [2022-12-13 13:58:01,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:58:01,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:58:01,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:58:01,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:58:01,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,775 INFO L138 Inliner]: procedures = 274, calls = 57, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 387 [2022-12-13 13:58:01,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:58:01,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:58:01,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:58:01,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:58:01,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,813 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,819 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:58:01,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:58:01,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:58:01,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:58:01,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (1/1) ... [2022-12-13 13:58:01,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:58:01,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:58:01,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:58:01,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03489115-4895-45a9-af76-becbe1422def/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:58:01,874 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 13:58:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 13:58:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 13:58:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 13:58:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:58:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:58:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:58:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:58:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 13:58:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:58:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:58:01,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:58:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:58:01,877 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 13:58:01,995 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:58:01,997 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:58:02,499 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:58:02,509 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:58:02,509 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 13:58:02,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:58:02 BoogieIcfgContainer [2022-12-13 13:58:02,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:58:02,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:58:02,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:58:02,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:58:02,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:58:01" (1/3) ... [2022-12-13 13:58:02,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362cfb8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:58:02, skipping insertion in model container [2022-12-13 13:58:02,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:58:01" (2/3) ... [2022-12-13 13:58:02,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362cfb8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:58:02, skipping insertion in model container [2022-12-13 13:58:02,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:58:02" (3/3) ... [2022-12-13 13:58:02,520 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longest.i [2022-12-13 13:58:02,528 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:58:02,537 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:58:02,537 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 35 error locations. [2022-12-13 13:58:02,538 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:58:02,634 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 13:58:02,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 441 places, 447 transitions, 910 flow [2022-12-13 13:58:02,805 INFO L130 PetriNetUnfolder]: 13/445 cut-off events. [2022-12-13 13:58:02,805 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:58:02,813 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 445 events. 13/445 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 788 event pairs, 0 based on Foata normal form. 0/397 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-12-13 13:58:02,814 INFO L82 GeneralOperation]: Start removeDead. Operand has 441 places, 447 transitions, 910 flow [2022-12-13 13:58:02,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 429 places, 435 transitions, 879 flow [2022-12-13 13:58:02,823 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:58:02,831 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 429 places, 435 transitions, 879 flow [2022-12-13 13:58:02,833 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 429 places, 435 transitions, 879 flow [2022-12-13 13:58:02,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 429 places, 435 transitions, 879 flow [2022-12-13 13:58:02,902 INFO L130 PetriNetUnfolder]: 13/435 cut-off events. [2022-12-13 13:58:02,902 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:58:02,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 443 conditions, 435 events. 13/435 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 714 event pairs, 0 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 315. Up to 3 conditions per place. [2022-12-13 13:58:02,917 INFO L119 LiptonReduction]: Number of co-enabled transitions 53036 [2022-12-13 13:58:24,047 WARN L233 SmtUtils]: Spent 9.91s on a formula simplification. DAG size of input: 123 DAG size of output: 120 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:58:40,235 WARN L233 SmtUtils]: Spent 12.85s on a formula simplification. DAG size of input: 130 DAG size of output: 127 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:59:28,878 WARN L233 SmtUtils]: Spent 42.65s on a formula simplification. DAG size of input: 229 DAG size of output: 218 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:59:36,837 WARN L233 SmtUtils]: Spent 7.96s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:00:06,152 WARN L233 SmtUtils]: Spent 29.31s on a formula simplification. DAG size of input: 236 DAG size of output: 225 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 14:00:08,250 INFO L134 LiptonReduction]: Checked pairs total: 417855 [2022-12-13 14:00:08,251 INFO L136 LiptonReduction]: Total number of compositions: 294 [2022-12-13 14:00:08,263 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:00:08,267 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;@20a679bb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:00:08,267 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-12-13 14:00:08,269 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 14:00:08,269 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 14:00:08,269 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:00:08,269 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 14:00:08,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 14:00:08,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:00:08,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 1 times [2022-12-13 14:00:08,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:00:08,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295196632] [2022-12-13 14:00:08,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:00:08,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:00:08,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:00:08,368 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 14:00:08,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:00:08,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295196632] [2022-12-13 14:00:08,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295196632] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:00:08,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:00:08,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 14:00:08,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679625542] [2022-12-13 14:00:08,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:00:08,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:00:08,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:00:08,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:00:08,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:00:08,404 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 436 out of 741 [2022-12-13 14:00:08,408 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 202 transitions, 413 flow. Second operand has 2 states, 2 states have (on average 436.5) internal successors, (873), 2 states have internal predecessors, (873), 0 states have call successors, (0), 0 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 14:00:08,408 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:00:08,408 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 436 of 741 [2022-12-13 14:00:08,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:00:09,242 INFO L130 PetriNetUnfolder]: 2295/7221 cut-off events. [2022-12-13 14:00:09,242 INFO L131 PetriNetUnfolder]: For 106/106 co-relation queries the response was YES. [2022-12-13 14:00:09,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10987 conditions, 7221 events. 2295/7221 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 60475 event pairs, 1929 based on Foata normal form. 0/6700 useless extension candidates. Maximal degree in co-relation 10536. Up to 3687 conditions per place. [2022-12-13 14:00:09,285 INFO L137 encePairwiseOnDemand]: 734/741 looper letters, 63 selfloop transitions, 0 changer transitions 0/195 dead transitions. [2022-12-13 14:00:09,286 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 195 transitions, 525 flow [2022-12-13 14:00:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:00:09,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 14:00:09,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 942 transitions. [2022-12-13 14:00:09,298 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6356275303643725 [2022-12-13 14:00:09,299 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 942 transitions. [2022-12-13 14:00:09,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 942 transitions. [2022-12-13 14:00:09,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:00:09,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 942 transitions. [2022-12-13 14:00:09,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 471.0) internal successors, (942), 2 states have internal predecessors, (942), 0 states have call successors, (0), 0 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 14:00:09,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 741.0) internal successors, (2223), 3 states have internal predecessors, (2223), 0 states have call successors, (0), 0 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 14:00:09,317 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 741.0) internal successors, (2223), 3 states have internal predecessors, (2223), 0 states have call successors, (0), 0 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 14:00:09,319 INFO L175 Difference]: Start difference. First operand has 202 places, 202 transitions, 413 flow. Second operand 2 states and 942 transitions. [2022-12-13 14:00:09,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 195 transitions, 525 flow [2022-12-13 14:00:09,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 195 transitions, 520 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 14:00:09,327 INFO L231 Difference]: Finished difference. Result has 193 places, 195 transitions, 394 flow [2022-12-13 14:00:09,329 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=741, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=394, PETRI_PLACES=193, PETRI_TRANSITIONS=195} [2022-12-13 14:00:09,333 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -9 predicate places. [2022-12-13 14:00:09,333 INFO L495 AbstractCegarLoop]: Abstraction has has 193 places, 195 transitions, 394 flow [2022-12-13 14:00:09,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 436.5) internal successors, (873), 2 states have internal predecessors, (873), 0 states have call successors, (0), 0 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 14:00:09,334 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:00:09,334 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 14:00:09,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:00:09,335 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 14:00:09,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:00:09,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1492267517, now seen corresponding path program 1 times [2022-12-13 14:00:09,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:00:09,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481845513] [2022-12-13 14:00:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:00:09,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:00:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:00:09,480 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 14:00:09,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:00:09,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481845513] [2022-12-13 14:00:09,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481845513] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:00:09,481 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:00:09,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:00:09,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429402556] [2022-12-13 14:00:09,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:00:09,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:00:09,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:00:09,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:00:09,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:00:09,501 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 741 [2022-12-13 14:00:09,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 195 transitions, 394 flow. Second operand has 3 states, 3 states have (on average 431.6666666666667) internal successors, (1295), 3 states have internal predecessors, (1295), 0 states have call successors, (0), 0 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 14:00:09,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:00:09,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 741 [2022-12-13 14:00:09,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:00:10,514 INFO L130 PetriNetUnfolder]: 2667/8315 cut-off events. [2022-12-13 14:00:10,514 INFO L131 PetriNetUnfolder]: For 21/65 co-relation queries the response was YES. [2022-12-13 14:00:10,525 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12739 conditions, 8315 events. 2667/8315 cut-off events. For 21/65 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 72140 event pairs, 535 based on Foata normal form. 1/7635 useless extension candidates. Maximal degree in co-relation 12736. Up to 3196 conditions per place. [2022-12-13 14:00:10,551 INFO L137 encePairwiseOnDemand]: 736/741 looper letters, 120 selfloop transitions, 4 changer transitions 0/253 dead transitions. [2022-12-13 14:00:10,551 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 253 transitions, 761 flow [2022-12-13 14:00:10,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:00:10,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:00:10,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1415 transitions. [2022-12-13 14:00:10,555 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6365272154745839 [2022-12-13 14:00:10,555 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1415 transitions. [2022-12-13 14:00:10,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1415 transitions. [2022-12-13 14:00:10,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:00:10,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1415 transitions. [2022-12-13 14:00:10,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 471.6666666666667) internal successors, (1415), 3 states have internal predecessors, (1415), 0 states have call successors, (0), 0 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 14:00:10,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 741.0) internal successors, (2964), 4 states have internal predecessors, (2964), 0 states have call successors, (0), 0 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 14:00:10,563 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 741.0) internal successors, (2964), 4 states have internal predecessors, (2964), 0 states have call successors, (0), 0 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 14:00:10,563 INFO L175 Difference]: Start difference. First operand has 193 places, 195 transitions, 394 flow. Second operand 3 states and 1415 transitions. [2022-12-13 14:00:10,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 253 transitions, 761 flow [2022-12-13 14:00:10,565 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 253 transitions, 761 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 14:00:10,567 INFO L231 Difference]: Finished difference. Result has 197 places, 198 transitions, 424 flow [2022-12-13 14:00:10,568 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=741, PETRI_DIFFERENCE_MINUEND_FLOW=394, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=197, PETRI_TRANSITIONS=198} [2022-12-13 14:00:10,568 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -5 predicate places. [2022-12-13 14:00:10,568 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 198 transitions, 424 flow [2022-12-13 14:00:10,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 431.6666666666667) internal successors, (1295), 3 states have internal predecessors, (1295), 0 states have call successors, (0), 0 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 14:00:10,569 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:00:10,569 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:00:10,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:00:10,569 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 14:00:10,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:00:10,570 INFO L85 PathProgramCache]: Analyzing trace with hash -413113040, now seen corresponding path program 1 times [2022-12-13 14:00:10,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:00:10,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936503065] [2022-12-13 14:00:10,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:00:10,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:00:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:00:10,624 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 14:00:10,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:00:10,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936503065] [2022-12-13 14:00:10,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936503065] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:00:10,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:00:10,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:00:10,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991268341] [2022-12-13 14:00:10,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:00:10,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:00:10,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:00:10,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:00:10,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:00:10,645 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 741 [2022-12-13 14:00:10,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 198 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 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 14:00:10,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:00:10,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 741 [2022-12-13 14:00:10,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:00:11,504 INFO L130 PetriNetUnfolder]: 2849/9161 cut-off events. [2022-12-13 14:00:11,505 INFO L131 PetriNetUnfolder]: For 341/341 co-relation queries the response was YES. [2022-12-13 14:00:11,514 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14201 conditions, 9161 events. 2849/9161 cut-off events. For 341/341 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 82958 event pairs, 659 based on Foata normal form. 0/8425 useless extension candidates. Maximal degree in co-relation 14196. Up to 3360 conditions per place. [2022-12-13 14:00:11,533 INFO L137 encePairwiseOnDemand]: 736/741 looper letters, 120 selfloop transitions, 4 changer transitions 0/254 dead transitions. [2022-12-13 14:00:11,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 254 transitions, 789 flow [2022-12-13 14:00:11,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:00:11,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:00:11,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1413 transitions. [2022-12-13 14:00:11,536 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6356275303643725 [2022-12-13 14:00:11,536 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1413 transitions. [2022-12-13 14:00:11,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1413 transitions. [2022-12-13 14:00:11,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:00:11,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1413 transitions. [2022-12-13 14:00:11,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 471.0) internal successors, (1413), 3 states have internal predecessors, (1413), 0 states have call successors, (0), 0 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 14:00:11,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 741.0) internal successors, (2964), 4 states have internal predecessors, (2964), 0 states have call successors, (0), 0 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 14:00:11,542 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 741.0) internal successors, (2964), 4 states have internal predecessors, (2964), 0 states have call successors, (0), 0 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 14:00:11,542 INFO L175 Difference]: Start difference. First operand has 197 places, 198 transitions, 424 flow. Second operand 3 states and 1413 transitions. [2022-12-13 14:00:11,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 254 transitions, 789 flow [2022-12-13 14:00:11,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 254 transitions, 779 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:00:11,545 INFO L231 Difference]: Finished difference. Result has 199 places, 201 transitions, 446 flow [2022-12-13 14:00:11,545 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=741, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=446, PETRI_PLACES=199, PETRI_TRANSITIONS=201} [2022-12-13 14:00:11,546 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -3 predicate places. [2022-12-13 14:00:11,546 INFO L495 AbstractCegarLoop]: Abstraction has has 199 places, 201 transitions, 446 flow [2022-12-13 14:00:11,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 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 14:00:11,547 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:00:11,547 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:00:11,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 14:00:11,547 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 14:00:11,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:00:11,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1389666743, now seen corresponding path program 1 times [2022-12-13 14:00:11,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:00:11,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344594995] [2022-12-13 14:00:11,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:00:11,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:00:11,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:00:11,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 14:00:11,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:00:11,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344594995] [2022-12-13 14:00:11,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344594995] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:00:11,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:00:11,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:00:11,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262654703] [2022-12-13 14:00:11,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:00:11,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:00:11,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:00:11,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:00:11,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:00:11,624 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 741 [2022-12-13 14:00:11,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 201 transitions, 446 flow. Second operand has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 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 14:00:11,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:00:11,627 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 741 [2022-12-13 14:00:11,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:00:13,125 INFO L130 PetriNetUnfolder]: 4287/14598 cut-off events. [2022-12-13 14:00:13,125 INFO L131 PetriNetUnfolder]: For 665/665 co-relation queries the response was YES. [2022-12-13 14:00:13,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22392 conditions, 14598 events. 4287/14598 cut-off events. For 665/665 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 139766 event pairs, 2341 based on Foata normal form. 0/13623 useless extension candidates. Maximal degree in co-relation 22386. Up to 4437 conditions per place. [2022-12-13 14:00:13,203 INFO L137 encePairwiseOnDemand]: 738/741 looper letters, 115 selfloop transitions, 2 changer transitions 0/252 dead transitions. [2022-12-13 14:00:13,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 252 transitions, 794 flow [2022-12-13 14:00:13,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:00:13,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:00:13,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1411 transitions. [2022-12-13 14:00:13,206 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.634727845254161 [2022-12-13 14:00:13,206 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1411 transitions. [2022-12-13 14:00:13,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1411 transitions. [2022-12-13 14:00:13,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:00:13,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1411 transitions. [2022-12-13 14:00:13,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.3333333333333) internal successors, (1411), 3 states have internal predecessors, (1411), 0 states have call successors, (0), 0 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 14:00:13,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 741.0) internal successors, (2964), 4 states have internal predecessors, (2964), 0 states have call successors, (0), 0 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 14:00:13,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 741.0) internal successors, (2964), 4 states have internal predecessors, (2964), 0 states have call successors, (0), 0 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 14:00:13,211 INFO L175 Difference]: Start difference. First operand has 199 places, 201 transitions, 446 flow. Second operand 3 states and 1411 transitions. [2022-12-13 14:00:13,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 252 transitions, 794 flow [2022-12-13 14:00:13,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 252 transitions, 782 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 14:00:13,215 INFO L231 Difference]: Finished difference. Result has 200 places, 202 transitions, 450 flow [2022-12-13 14:00:13,215 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=741, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=450, PETRI_PLACES=200, PETRI_TRANSITIONS=202} [2022-12-13 14:00:13,216 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, -2 predicate places. [2022-12-13 14:00:13,216 INFO L495 AbstractCegarLoop]: Abstraction has has 200 places, 202 transitions, 450 flow [2022-12-13 14:00:13,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 434.0) internal successors, (1302), 3 states have internal predecessors, (1302), 0 states have call successors, (0), 0 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 14:00:13,216 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:00:13,217 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:00:13,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 14:00:13,217 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 14:00:13,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:00:13,217 INFO L85 PathProgramCache]: Analyzing trace with hash -2048890491, now seen corresponding path program 1 times [2022-12-13 14:00:13,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:00:13,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499378906] [2022-12-13 14:00:13,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:00:13,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:00:13,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:00:13,497 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 14:00:13,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:00:13,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499378906] [2022-12-13 14:00:13,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499378906] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:00:13,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:00:13,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:00:13,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158877560] [2022-12-13 14:00:13,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:00:13,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:00:13,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:00:13,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:00:13,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:00:14,193 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 741 [2022-12-13 14:00:14,195 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 202 transitions, 450 flow. Second operand has 6 states, 6 states have (on average 384.6666666666667) internal successors, (2308), 6 states have internal predecessors, (2308), 0 states have call successors, (0), 0 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 14:00:14,195 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:00:14,195 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 741 [2022-12-13 14:00:14,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:00:28,053 INFO L130 PetriNetUnfolder]: 78386/143434 cut-off events. [2022-12-13 14:00:28,053 INFO L131 PetriNetUnfolder]: For 5814/5814 co-relation queries the response was YES. [2022-12-13 14:00:28,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270196 conditions, 143434 events. 78386/143434 cut-off events. For 5814/5814 co-relation queries the response was YES. Maximal size of possible extension queue 1746. Compared 1377569 event pairs, 28985 based on Foata normal form. 0/134198 useless extension candidates. Maximal degree in co-relation 270189. Up to 81069 conditions per place. [2022-12-13 14:00:28,594 INFO L137 encePairwiseOnDemand]: 703/741 looper letters, 326 selfloop transitions, 133 changer transitions 0/560 dead transitions. [2022-12-13 14:00:28,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 560 transitions, 2181 flow [2022-12-13 14:00:28,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:00:28,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:00:28,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2738 transitions. [2022-12-13 14:00:28,600 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6158344579397211 [2022-12-13 14:00:28,600 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2738 transitions. [2022-12-13 14:00:28,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2738 transitions. [2022-12-13 14:00:28,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:00:28,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2738 transitions. [2022-12-13 14:00:28,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 456.3333333333333) internal successors, (2738), 6 states have internal predecessors, (2738), 0 states have call successors, (0), 0 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 14:00:28,611 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 741.0) internal successors, (5187), 7 states have internal predecessors, (5187), 0 states have call successors, (0), 0 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 14:00:28,613 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 741.0) internal successors, (5187), 7 states have internal predecessors, (5187), 0 states have call successors, (0), 0 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 14:00:28,613 INFO L175 Difference]: Start difference. First operand has 200 places, 202 transitions, 450 flow. Second operand 6 states and 2738 transitions. [2022-12-13 14:00:28,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 560 transitions, 2181 flow [2022-12-13 14:00:28,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 560 transitions, 2171 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:00:28,632 INFO L231 Difference]: Finished difference. Result has 209 places, 334 transitions, 1318 flow [2022-12-13 14:00:28,632 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=741, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1318, PETRI_PLACES=209, PETRI_TRANSITIONS=334} [2022-12-13 14:00:28,633 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 7 predicate places. [2022-12-13 14:00:28,633 INFO L495 AbstractCegarLoop]: Abstraction has has 209 places, 334 transitions, 1318 flow [2022-12-13 14:00:28,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 384.6666666666667) internal successors, (2308), 6 states have internal predecessors, (2308), 0 states have call successors, (0), 0 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 14:00:28,635 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:00:28,635 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:00:28,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 14:00:28,635 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err12ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 14:00:28,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:00:28,636 INFO L85 PathProgramCache]: Analyzing trace with hash -874374611, now seen corresponding path program 1 times [2022-12-13 14:00:28,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:00:28,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19451805] [2022-12-13 14:00:28,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:00:28,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:00:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:00:28,680 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 14:00:28,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:00:28,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19451805] [2022-12-13 14:00:28,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19451805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:00:28,680 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:00:28,680 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 14:00:28,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890606067] [2022-12-13 14:00:28,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:00:28,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:00:28,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:00:28,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:00:28,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:00:28,696 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 432 out of 741 [2022-12-13 14:00:28,697 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 334 transitions, 1318 flow. Second operand has 3 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 0 states have call successors, (0), 0 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 14:00:28,697 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:00:28,697 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 432 of 741 [2022-12-13 14:00:28,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:00:43,245 INFO L130 PetriNetUnfolder]: 51357/137399 cut-off events. [2022-12-13 14:00:43,245 INFO L131 PetriNetUnfolder]: For 30487/38583 co-relation queries the response was YES. [2022-12-13 14:00:43,598 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277380 conditions, 137399 events. 51357/137399 cut-off events. For 30487/38583 co-relation queries the response was YES. Maximal size of possible extension queue 1594. Compared 1710623 event pairs, 16449 based on Foata normal form. 0/130318 useless extension candidates. Maximal degree in co-relation 277369. Up to 42611 conditions per place. [2022-12-13 14:00:44,112 INFO L137 encePairwiseOnDemand]: 737/741 looper letters, 147 selfloop transitions, 3 changer transitions 0/401 dead transitions. [2022-12-13 14:00:44,112 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 401 transitions, 1835 flow [2022-12-13 14:00:44,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:00:44,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 14:00:44,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1410 transitions. [2022-12-13 14:00:44,116 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6342780026990553 [2022-12-13 14:00:44,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1410 transitions. [2022-12-13 14:00:44,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1410 transitions. [2022-12-13 14:00:44,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:00:44,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1410 transitions. [2022-12-13 14:00:44,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 470.0) internal successors, (1410), 3 states have internal predecessors, (1410), 0 states have call successors, (0), 0 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 14:00:44,123 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 741.0) internal successors, (2964), 4 states have internal predecessors, (2964), 0 states have call successors, (0), 0 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 14:00:44,123 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 741.0) internal successors, (2964), 4 states have internal predecessors, (2964), 0 states have call successors, (0), 0 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 14:00:44,123 INFO L175 Difference]: Start difference. First operand has 209 places, 334 transitions, 1318 flow. Second operand 3 states and 1410 transitions. [2022-12-13 14:00:44,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 401 transitions, 1835 flow [2022-12-13 14:00:47,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 401 transitions, 1835 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 14:00:47,924 INFO L231 Difference]: Finished difference. Result has 212 places, 336 transitions, 1337 flow [2022-12-13 14:00:47,924 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=741, PETRI_DIFFERENCE_MINUEND_FLOW=1318, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1337, PETRI_PLACES=212, PETRI_TRANSITIONS=336} [2022-12-13 14:00:47,925 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 10 predicate places. [2022-12-13 14:00:47,925 INFO L495 AbstractCegarLoop]: Abstraction has has 212 places, 336 transitions, 1337 flow [2022-12-13 14:00:47,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 435.0) internal successors, (1305), 3 states have internal predecessors, (1305), 0 states have call successors, (0), 0 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 14:00:47,925 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:00:47,925 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:00:47,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 14:00:47,925 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 14:00:47,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:00:47,926 INFO L85 PathProgramCache]: Analyzing trace with hash -791519306, now seen corresponding path program 1 times [2022-12-13 14:00:47,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:00:47,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581129850] [2022-12-13 14:00:47,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:00:47,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:00:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:00:48,170 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 14:00:48,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:00:48,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581129850] [2022-12-13 14:00:48,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581129850] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:00:48,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:00:48,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:00:48,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575389717] [2022-12-13 14:00:48,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:00:48,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:00:48,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:00:48,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:00:48,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:00:48,881 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 374 out of 741 [2022-12-13 14:00:48,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 336 transitions, 1337 flow. Second operand has 6 states, 6 states have (on average 375.6666666666667) internal successors, (2254), 6 states have internal predecessors, (2254), 0 states have call successors, (0), 0 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 14:00:48,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:00:48,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 374 of 741 [2022-12-13 14:00:48,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:01:17,855 INFO L130 PetriNetUnfolder]: 129706/268117 cut-off events. [2022-12-13 14:01:17,855 INFO L131 PetriNetUnfolder]: For 114802/123258 co-relation queries the response was YES. [2022-12-13 14:01:18,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 631183 conditions, 268117 events. 129706/268117 cut-off events. For 114802/123258 co-relation queries the response was YES. Maximal size of possible extension queue 3073. Compared 3062830 event pairs, 38102 based on Foata normal form. 16/254154 useless extension candidates. Maximal degree in co-relation 631170. Up to 143983 conditions per place. [2022-12-13 14:01:19,401 INFO L137 encePairwiseOnDemand]: 707/741 looper letters, 366 selfloop transitions, 271 changer transitions 0/747 dead transitions. [2022-12-13 14:01:19,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 217 places, 747 transitions, 4443 flow [2022-12-13 14:01:19,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:01:19,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:01:19,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2550 transitions. [2022-12-13 14:01:19,406 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.573549257759784 [2022-12-13 14:01:19,406 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2550 transitions. [2022-12-13 14:01:19,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2550 transitions. [2022-12-13 14:01:19,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:01:19,408 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2550 transitions. [2022-12-13 14:01:19,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 425.0) internal successors, (2550), 6 states have internal predecessors, (2550), 0 states have call successors, (0), 0 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 14:01:19,415 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 741.0) internal successors, (5187), 7 states have internal predecessors, (5187), 0 states have call successors, (0), 0 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 14:01:19,416 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 741.0) internal successors, (5187), 7 states have internal predecessors, (5187), 0 states have call successors, (0), 0 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 14:01:19,417 INFO L175 Difference]: Start difference. First operand has 212 places, 336 transitions, 1337 flow. Second operand 6 states and 2550 transitions. [2022-12-13 14:01:19,417 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 217 places, 747 transitions, 4443 flow [2022-12-13 14:01:26,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 747 transitions, 4428 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 14:01:26,890 INFO L231 Difference]: Finished difference. Result has 221 places, 605 transitions, 4058 flow [2022-12-13 14:01:26,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=741, PETRI_DIFFERENCE_MINUEND_FLOW=1334, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4058, PETRI_PLACES=221, PETRI_TRANSITIONS=605} [2022-12-13 14:01:26,891 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 19 predicate places. [2022-12-13 14:01:26,891 INFO L495 AbstractCegarLoop]: Abstraction has has 221 places, 605 transitions, 4058 flow [2022-12-13 14:01:26,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 375.6666666666667) internal successors, (2254), 6 states have internal predecessors, (2254), 0 states have call successors, (0), 0 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 14:01:26,892 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:01:26,892 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:01:26,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 14:01:26,892 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 14:01:26,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:01:26,892 INFO L85 PathProgramCache]: Analyzing trace with hash -501110458, now seen corresponding path program 1 times [2022-12-13 14:01:26,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:01:26,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928503109] [2022-12-13 14:01:26,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:01:26,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:01:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:01:27,083 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 14:01:27,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:01:27,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928503109] [2022-12-13 14:01:27,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928503109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:01:27,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:01:27,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:01:27,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943614755] [2022-12-13 14:01:27,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:01:27,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:01:27,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:01:27,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:01:27,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:01:27,862 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 741 [2022-12-13 14:01:27,865 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 605 transitions, 4058 flow. Second operand has 6 states, 6 states have (on average 386.1666666666667) internal successors, (2317), 6 states have internal predecessors, (2317), 0 states have call successors, (0), 0 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 14:01:27,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:01:27,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 741 [2022-12-13 14:01:27,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:02:09,667 INFO L130 PetriNetUnfolder]: 143352/325636 cut-off events. [2022-12-13 14:02:09,667 INFO L131 PetriNetUnfolder]: For 310788/325845 co-relation queries the response was YES. [2022-12-13 14:02:10,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 845818 conditions, 325636 events. 143352/325636 cut-off events. For 310788/325845 co-relation queries the response was YES. Maximal size of possible extension queue 3604. Compared 4085899 event pairs, 34191 based on Foata normal form. 467/308850 useless extension candidates. Maximal degree in co-relation 845801. Up to 173549 conditions per place. [2022-12-13 14:02:11,864 INFO L137 encePairwiseOnDemand]: 713/741 looper letters, 623 selfloop transitions, 491 changer transitions 0/1230 dead transitions. [2022-12-13 14:02:11,865 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 1230 transitions, 9864 flow [2022-12-13 14:02:11,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:02:11,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:02:11,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2603 transitions. [2022-12-13 14:02:11,870 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5854700854700855 [2022-12-13 14:02:11,870 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2603 transitions. [2022-12-13 14:02:11,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2603 transitions. [2022-12-13 14:02:11,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:02:11,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2603 transitions. [2022-12-13 14:02:11,874 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 433.8333333333333) internal successors, (2603), 6 states have internal predecessors, (2603), 0 states have call successors, (0), 0 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 14:02:11,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 741.0) internal successors, (5187), 7 states have internal predecessors, (5187), 0 states have call successors, (0), 0 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 14:02:11,879 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 741.0) internal successors, (5187), 7 states have internal predecessors, (5187), 0 states have call successors, (0), 0 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 14:02:11,879 INFO L175 Difference]: Start difference. First operand has 221 places, 605 transitions, 4058 flow. Second operand 6 states and 2603 transitions. [2022-12-13 14:02:11,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 1230 transitions, 9864 flow [2022-12-13 14:02:21,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 1230 transitions, 9864 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 14:02:21,692 INFO L231 Difference]: Finished difference. Result has 231 places, 1095 transitions, 9490 flow [2022-12-13 14:02:21,692 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=741, PETRI_DIFFERENCE_MINUEND_FLOW=4058, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=605, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=116, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=459, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=9490, PETRI_PLACES=231, PETRI_TRANSITIONS=1095} [2022-12-13 14:02:21,692 INFO L288 CegarLoopForPetriNet]: 202 programPoint places, 29 predicate places. [2022-12-13 14:02:21,693 INFO L495 AbstractCegarLoop]: Abstraction has has 231 places, 1095 transitions, 9490 flow [2022-12-13 14:02:21,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 386.1666666666667) internal successors, (2317), 6 states have internal predecessors, (2317), 0 states have call successors, (0), 0 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 14:02:21,693 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 14:02:21,693 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:02:21,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 14:02:21,693 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 14:02:21,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:02:21,694 INFO L85 PathProgramCache]: Analyzing trace with hash -207370897, now seen corresponding path program 1 times [2022-12-13 14:02:21,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:02:21,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462057942] [2022-12-13 14:02:21,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:02:21,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:02:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:02:21,903 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 14:02:21,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:02:21,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462057942] [2022-12-13 14:02:21,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462057942] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:02:21,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:02:21,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 14:02:21,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929532118] [2022-12-13 14:02:21,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:02:21,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 14:02:21,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:02:21,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 14:02:21,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 14:02:22,318 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 320 out of 741 [2022-12-13 14:02:22,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 1095 transitions, 9490 flow. Second operand has 6 states, 6 states have (on average 322.5) internal successors, (1935), 6 states have internal predecessors, (1935), 0 states have call successors, (0), 0 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 14:02:22,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 14:02:22,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 320 of 741 [2022-12-13 14:02:22,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 14:02:27,042 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1384] L981-8-->L981-10: Formula: (= |v_#race_375| (store |v_#race_376| |v_t1Thread1of1ForFork1_enqueue_~q#1.base_139| (store (select |v_#race_376| |v_t1Thread1of1ForFork1_enqueue_~q#1.base_139|) (+ |v_t1Thread1of1ForFork1_enqueue_~q#1.offset_139| 3208) |v_t1Thread1of1ForFork1_enqueue_#t~nondet43#1_25|))) InVars {#race=|v_#race_376|, t1Thread1of1ForFork1_enqueue_~q#1.offset=|v_t1Thread1of1ForFork1_enqueue_~q#1.offset_139|, t1Thread1of1ForFork1_enqueue_~q#1.base=|v_t1Thread1of1ForFork1_enqueue_~q#1.base_139|} OutVars{#race=|v_#race_375|, t1Thread1of1ForFork1_enqueue_#t~nondet43#1=|v_t1Thread1of1ForFork1_enqueue_#t~nondet43#1_25|, t1Thread1of1ForFork1_enqueue_~q#1.offset=|v_t1Thread1of1ForFork1_enqueue_~q#1.offset_139|, t1Thread1of1ForFork1_enqueue_~q#1.base=|v_t1Thread1of1ForFork1_enqueue_~q#1.base_139|} AuxVars[] AssignedVars[#race, t1Thread1of1ForFork1_enqueue_#t~nondet43#1][454], [493#true, Black: 447#true, Black: 453#true, 284#L1054-6true, 444#true, Black: 466#(= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0), 505#true, Black: 467#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), Black: 468#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), Black: 469#(and (= 0 (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#id1~0#1.offset|))) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), 478#(= 0 |t2Thread1of1ForFork0_~i~1#1|), 77#L960-6true, Black: 486#(and (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3205)) 0) (= 0 (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3207))) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3206)) 0)), Black: 485#(and (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3205)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3206)) 0)), Black: 483#(= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0), Black: 484#(and (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3205)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0)), 481#true, 461#(= |t1Thread1of1ForFork1_~i~0#1| 0), Black: 497#(and (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3201)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3202)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0)), Black: 495#(= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0), Black: 498#(and (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3201)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3202)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3203)) 0)), t2Thread1of1ForFork0InUse, Black: 496#(and (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3201)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0)), 464#true, 367#L981-10true]) [2022-12-13 14:02:27,043 INFO L383 tUnfolder$Statistics]: this new event has 44 ancestors and is not cut-off event [2022-12-13 14:02:27,043 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is not cut-off event [2022-12-13 14:02:27,043 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is not cut-off event [2022-12-13 14:02:27,043 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is not cut-off event [2022-12-13 14:03:08,401 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1384] L981-8-->L981-10: Formula: (= |v_#race_375| (store |v_#race_376| |v_t1Thread1of1ForFork1_enqueue_~q#1.base_139| (store (select |v_#race_376| |v_t1Thread1of1ForFork1_enqueue_~q#1.base_139|) (+ |v_t1Thread1of1ForFork1_enqueue_~q#1.offset_139| 3208) |v_t1Thread1of1ForFork1_enqueue_#t~nondet43#1_25|))) InVars {#race=|v_#race_376|, t1Thread1of1ForFork1_enqueue_~q#1.offset=|v_t1Thread1of1ForFork1_enqueue_~q#1.offset_139|, t1Thread1of1ForFork1_enqueue_~q#1.base=|v_t1Thread1of1ForFork1_enqueue_~q#1.base_139|} OutVars{#race=|v_#race_375|, t1Thread1of1ForFork1_enqueue_#t~nondet43#1=|v_t1Thread1of1ForFork1_enqueue_#t~nondet43#1_25|, t1Thread1of1ForFork1_enqueue_~q#1.offset=|v_t1Thread1of1ForFork1_enqueue_~q#1.offset_139|, t1Thread1of1ForFork1_enqueue_~q#1.base=|v_t1Thread1of1ForFork1_enqueue_~q#1.base_139|} AuxVars[] AssignedVars[#race, t1Thread1of1ForFork1_enqueue_#t~nondet43#1][454], [493#true, Black: 447#true, Black: 453#true, 284#L1054-6true, Black: 461#(= |t1Thread1of1ForFork1_~i~0#1| 0), Black: 466#(= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0), 444#true, 505#true, Black: 467#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), Black: 468#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), Black: 469#(and (= 0 (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#id1~0#1.offset|))) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), 77#L960-6true, 478#(= 0 |t2Thread1of1ForFork0_~i~1#1|), Black: 486#(and (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3205)) 0) (= 0 (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3207))) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3206)) 0)), Black: 485#(and (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3205)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3206)) 0)), Black: 483#(= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0), Black: 484#(and (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3205)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0)), 481#true, Black: 497#(and (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3201)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3202)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0)), Black: 495#(= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0), Black: 498#(and (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3201)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3202)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3203)) 0)), Black: 496#(and (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3201)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0)), t2Thread1of1ForFork0InUse, 464#true, 367#L981-10true]) [2022-12-13 14:03:08,401 INFO L383 tUnfolder$Statistics]: this new event has 86 ancestors and is cut-off event [2022-12-13 14:03:08,401 INFO L386 tUnfolder$Statistics]: existing Event has 86 ancestors and is cut-off event [2022-12-13 14:03:08,401 INFO L386 tUnfolder$Statistics]: existing Event has 86 ancestors and is cut-off event [2022-12-13 14:03:08,401 INFO L386 tUnfolder$Statistics]: existing Event has 86 ancestors and is cut-off event [2022-12-13 14:03:29,021 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([1384] L981-8-->L981-10: Formula: (= |v_#race_375| (store |v_#race_376| |v_t1Thread1of1ForFork1_enqueue_~q#1.base_139| (store (select |v_#race_376| |v_t1Thread1of1ForFork1_enqueue_~q#1.base_139|) (+ |v_t1Thread1of1ForFork1_enqueue_~q#1.offset_139| 3208) |v_t1Thread1of1ForFork1_enqueue_#t~nondet43#1_25|))) InVars {#race=|v_#race_376|, t1Thread1of1ForFork1_enqueue_~q#1.offset=|v_t1Thread1of1ForFork1_enqueue_~q#1.offset_139|, t1Thread1of1ForFork1_enqueue_~q#1.base=|v_t1Thread1of1ForFork1_enqueue_~q#1.base_139|} OutVars{#race=|v_#race_375|, t1Thread1of1ForFork1_enqueue_#t~nondet43#1=|v_t1Thread1of1ForFork1_enqueue_#t~nondet43#1_25|, t1Thread1of1ForFork1_enqueue_~q#1.offset=|v_t1Thread1of1ForFork1_enqueue_~q#1.offset_139|, t1Thread1of1ForFork1_enqueue_~q#1.base=|v_t1Thread1of1ForFork1_enqueue_~q#1.base_139|} AuxVars[] AssignedVars[#race, t1Thread1of1ForFork1_enqueue_#t~nondet43#1][454], [493#true, Black: 447#true, Black: 453#true, 284#L1054-6true, Black: 461#(= |t1Thread1of1ForFork1_~i~0#1| 0), Black: 466#(= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0), 444#true, 505#true, Black: 467#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), Black: 468#(and (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), Black: 469#(and (= 0 (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 3 |ULTIMATE.start_main_~#id1~0#1.offset|))) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) |ULTIMATE.start_main_~#id1~0#1.offset|) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ 2 |ULTIMATE.start_main_~#id1~0#1.offset|)) 0) (= (select (select |#race| |ULTIMATE.start_main_~#id1~0#1.base|) (+ |ULTIMATE.start_main_~#id1~0#1.offset| 1)) 0)), Black: 478#(= 0 |t2Thread1of1ForFork0_~i~1#1|), 77#L960-6true, Black: 486#(and (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3205)) 0) (= 0 (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3207))) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3206)) 0)), Black: 485#(and (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3205)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3206)) 0)), Black: 483#(= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0), Black: 484#(and (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3205)) 0) (= (select (select |#race| |t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ |t1Thread1of1ForFork1_enqueue_~q#1.offset| 3204)) 0)), 481#true, Black: 497#(and (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3201)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3202)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0)), Black: 495#(= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0), Black: 498#(and (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3201)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3202)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3203)) 0)), Black: 496#(and (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3201)) 0) (= (select (select |#race| |t2Thread1of1ForFork0_empty_~q#1.base|) (+ |t2Thread1of1ForFork0_empty_~q#1.offset| 3200)) 0)), t2Thread1of1ForFork0InUse, 464#true, 367#L981-10true]) [2022-12-13 14:03:29,021 INFO L383 tUnfolder$Statistics]: this new event has 98 ancestors and is cut-off event [2022-12-13 14:03:29,021 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-12-13 14:03:29,021 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-12-13 14:03:29,021 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-12-13 14:04:58,606 INFO L130 PetriNetUnfolder]: 535790/904112 cut-off events. [2022-12-13 14:04:58,606 INFO L131 PetriNetUnfolder]: For 1130555/1137805 co-relation queries the response was YES. [2022-12-13 14:05:01,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2732729 conditions, 904112 events. 535790/904112 cut-off events. For 1130555/1137805 co-relation queries the response was YES. Maximal size of possible extension queue 5095. Compared 9006650 event pairs, 283971 based on Foata normal form. 140/871291 useless extension candidates. Maximal degree in co-relation 2732707. Up to 807229 conditions per place. [2022-12-13 14:05:05,242 INFO L137 encePairwiseOnDemand]: 687/741 looper letters, 1128 selfloop transitions, 303 changer transitions 0/1484 dead transitions. [2022-12-13 14:05:05,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 1484 transitions, 13866 flow [2022-12-13 14:05:05,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 14:05:05,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 14:05:05,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2393 transitions. [2022-12-13 14:05:05,246 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5382366171839856 [2022-12-13 14:05:05,246 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2393 transitions. [2022-12-13 14:05:05,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2393 transitions. [2022-12-13 14:05:05,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 14:05:05,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2393 transitions. [2022-12-13 14:05:05,250 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 398.8333333333333) internal successors, (2393), 6 states have internal predecessors, (2393), 0 states have call successors, (0), 0 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 14:05:05,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 741.0) internal successors, (5187), 7 states have internal predecessors, (5187), 0 states have call successors, (0), 0 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 14:05:05,254 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 741.0) internal successors, (5187), 7 states have internal predecessors, (5187), 0 states have call successors, (0), 0 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 14:05:05,255 INFO L175 Difference]: Start difference. First operand has 231 places, 1095 transitions, 9490 flow. Second operand 6 states and 2393 transitions. [2022-12-13 14:05:05,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 1484 transitions, 13866 flow