./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 39e987e3198040ef6af9e29359b0ab7bee89306d1945f6e4e7a9286ebbe2a705 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:36:31,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:36:31,337 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:36:31,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:36:31,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:36:31,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:36:31,392 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:36:31,393 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:36:31,394 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:36:31,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:36:31,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:36:31,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:36:31,401 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:36:31,403 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:36:31,403 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:36:31,404 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:36:31,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:36:31,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:36:31,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:36:31,406 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:36:31,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:36:31,407 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:36:31,408 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:36:31,408 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:36:31,409 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:36:31,409 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:36:31,409 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:36:31,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:36:31,411 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:36:31,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:36:31,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:31,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:36:31,414 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:36:31,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:36:31,414 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:36:31,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:36:31,415 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:36:31,415 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:36:31,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:36:31,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:36:31,416 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:36:31,417 INFO L153 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_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39e987e3198040ef6af9e29359b0ab7bee89306d1945f6e4e7a9286ebbe2a705 [2023-11-19 07:36:31,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:36:31,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:36:31,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:36:31,774 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:36:31,774 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:36:31,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c [2023-11-19 07:36:35,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:36:35,275 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:36:35,276 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c [2023-11-19 07:36:35,288 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/data/7a28ee3b4/65593ebf67664842b4ce04f3077facdc/FLAGd49fccc88 [2023-11-19 07:36:35,307 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/data/7a28ee3b4/65593ebf67664842b4ce04f3077facdc [2023-11-19 07:36:35,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:36:35,315 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:36:35,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:35,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:36:35,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:36:35,330 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6035e905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35, skipping insertion in model container [2023-11-19 07:36:35,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,362 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:36:35,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:35,611 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:36:35,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:36:35,670 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:36:35,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35 WrapperNode [2023-11-19 07:36:35,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:36:35,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:35,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:36:35,673 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:36:35,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,728 INFO L138 Inliner]: procedures = 24, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 178 [2023-11-19 07:36:35,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:36:35,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:36:35,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:36:35,730 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:36:35,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,747 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,776 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,778 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:36:35,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:36:35,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:36:35,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:36:35,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (1/1) ... [2023-11-19 07:36:35,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:36:35,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:36:35,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:36:35,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:36:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:36:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:36:35,875 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:36:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:36:35,875 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:36:35,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-19 07:36:35,875 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-19 07:36:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:36:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:36:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:36:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:36:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:36:35,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:36:35,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:36:35,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:36:35,878 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:36:36,007 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:36:36,009 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:36:36,745 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:36:36,760 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:36:36,760 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:36:36,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:36 BoogieIcfgContainer [2023-11-19 07:36:36,766 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:36:36,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:36:36,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:36:36,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:36:36,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:35" (1/3) ... [2023-11-19 07:36:36,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbca104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:36, skipping insertion in model container [2023-11-19 07:36:36,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:35" (2/3) ... [2023-11-19 07:36:36,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dbca104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:36, skipping insertion in model container [2023-11-19 07:36:36,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:36" (3/3) ... [2023-11-19 07:36:36,779 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-sorted.wvr.c [2023-11-19 07:36:36,789 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:36:36,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:36:36,797 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2023-11-19 07:36:36,797 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:36:36,924 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-19 07:36:36,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 362 places, 369 transitions, 759 flow [2023-11-19 07:36:37,156 INFO L124 PetriNetUnfolderBase]: 17/366 cut-off events. [2023-11-19 07:36:37,156 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:36:37,169 INFO L83 FinitePrefix]: Finished finitePrefix Result has 379 conditions, 366 events. 17/366 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 749 event pairs, 0 based on Foata normal form. 0/310 useless extension candidates. Maximal degree in co-relation 251. Up to 2 conditions per place. [2023-11-19 07:36:37,170 INFO L82 GeneralOperation]: Start removeDead. Operand has 362 places, 369 transitions, 759 flow [2023-11-19 07:36:37,186 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 335 places, 340 transitions, 698 flow [2023-11-19 07:36:37,189 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:36:37,210 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 335 places, 340 transitions, 698 flow [2023-11-19 07:36:37,215 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 335 places, 340 transitions, 698 flow [2023-11-19 07:36:37,215 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 335 places, 340 transitions, 698 flow [2023-11-19 07:36:37,332 INFO L124 PetriNetUnfolderBase]: 15/340 cut-off events. [2023-11-19 07:36:37,332 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 07:36:37,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 353 conditions, 340 events. 15/340 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 740 event pairs, 0 based on Foata normal form. 0/287 useless extension candidates. Maximal degree in co-relation 251. Up to 2 conditions per place. [2023-11-19 07:36:37,353 INFO L119 LiptonReduction]: Number of co-enabled transitions 22962 [2023-11-19 07:36:46,843 INFO L134 LiptonReduction]: Checked pairs total: 138938 [2023-11-19 07:36:46,844 INFO L136 LiptonReduction]: Total number of compositions: 297 [2023-11-19 07:36:46,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:36:46,867 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=LoopHeads, 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;@37f908b2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:36:46,867 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-11-19 07:36:46,869 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:36:46,869 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 07:36:46,869 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:36:46,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:46,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 07:36:46,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:36:46,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:46,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1279, now seen corresponding path program 1 times [2023-11-19 07:36:46,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:46,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783783718] [2023-11-19 07:36:46,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:46,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:46,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:46,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:46,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783783718] [2023-11-19 07:36:46,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783783718] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:46,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:46,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 07:36:46,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743220202] [2023-11-19 07:36:46,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:46,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:36:47,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:47,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:36:47,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:36:47,025 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 354 out of 666 [2023-11-19 07:36:47,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 133 transitions, 284 flow. Second operand has 2 states, 2 states have (on average 354.5) internal successors, (709), 2 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:47,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:36:47,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 354 of 666 [2023-11-19 07:36:47,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:36:48,141 INFO L124 PetriNetUnfolderBase]: 2358/7010 cut-off events. [2023-11-19 07:36:48,141 INFO L125 PetriNetUnfolderBase]: For 224/224 co-relation queries the response was YES. [2023-11-19 07:36:48,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10384 conditions, 7010 events. 2358/7010 cut-off events. For 224/224 co-relation queries the response was YES. Maximal size of possible extension queue 339. Compared 71408 event pairs, 1665 based on Foata normal form. 347/5942 useless extension candidates. Maximal degree in co-relation 8997. Up to 3220 conditions per place. [2023-11-19 07:36:48,219 INFO L140 encePairwiseOnDemand]: 645/666 looper letters, 37 selfloop transitions, 0 changer transitions 1/112 dead transitions. [2023-11-19 07:36:48,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 112 transitions, 318 flow [2023-11-19 07:36:48,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:36:48,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:36:48,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 767 transitions. [2023-11-19 07:36:48,244 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5758258258258259 [2023-11-19 07:36:48,245 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 767 transitions. [2023-11-19 07:36:48,246 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 767 transitions. [2023-11-19 07:36:48,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:36:48,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 767 transitions. [2023-11-19 07:36:48,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 383.5) internal successors, (767), 2 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:48,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 666.0) internal successors, (1998), 3 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:48,272 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 666.0) internal successors, (1998), 3 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:48,274 INFO L175 Difference]: Start difference. First operand has 133 places, 133 transitions, 284 flow. Second operand 2 states and 767 transitions. [2023-11-19 07:36:48,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 112 transitions, 318 flow [2023-11-19 07:36:48,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 112 transitions, 306 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-19 07:36:48,289 INFO L231 Difference]: Finished difference. Result has 110 places, 111 transitions, 227 flow [2023-11-19 07:36:48,292 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=227, PETRI_PLACES=110, PETRI_TRANSITIONS=111} [2023-11-19 07:36:48,298 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -23 predicate places. [2023-11-19 07:36:48,298 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 111 transitions, 227 flow [2023-11-19 07:36:48,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 354.5) internal successors, (709), 2 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:48,299 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:48,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:36:48,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:36:48,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:36:48,301 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:48,301 INFO L85 PathProgramCache]: Analyzing trace with hash -381087431, now seen corresponding path program 1 times [2023-11-19 07:36:48,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:48,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317950747] [2023-11-19 07:36:48,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:48,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:48,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:48,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:48,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317950747] [2023-11-19 07:36:48,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317950747] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:48,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:48,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:48,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939836960] [2023-11-19 07:36:48,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:48,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:48,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:48,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:48,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:48,499 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 666 [2023-11-19 07:36:48,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 111 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 343.0) internal successors, (1029), 3 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:48,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:36:48,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 666 [2023-11-19 07:36:48,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:36:49,530 INFO L124 PetriNetUnfolderBase]: 2950/7420 cut-off events. [2023-11-19 07:36:49,530 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2023-11-19 07:36:49,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11503 conditions, 7420 events. 2950/7420 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 68811 event pairs, 2137 based on Foata normal form. 0/5877 useless extension candidates. Maximal degree in co-relation 11500. Up to 4030 conditions per place. [2023-11-19 07:36:49,609 INFO L140 encePairwiseOnDemand]: 663/666 looper letters, 38 selfloop transitions, 1 changer transitions 0/109 dead transitions. [2023-11-19 07:36:49,609 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 109 transitions, 301 flow [2023-11-19 07:36:49,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:49,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:36:49,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1064 transitions. [2023-11-19 07:36:49,614 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5325325325325325 [2023-11-19 07:36:49,615 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1064 transitions. [2023-11-19 07:36:49,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1064 transitions. [2023-11-19 07:36:49,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:36:49,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1064 transitions. [2023-11-19 07:36:49,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.6666666666667) internal successors, (1064), 3 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:49,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:49,630 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:49,630 INFO L175 Difference]: Start difference. First operand has 110 places, 111 transitions, 227 flow. Second operand 3 states and 1064 transitions. [2023-11-19 07:36:49,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 109 transitions, 301 flow [2023-11-19 07:36:49,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 109 transitions, 301 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:36:49,635 INFO L231 Difference]: Finished difference. Result has 109 places, 109 transitions, 225 flow [2023-11-19 07:36:49,635 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=225, PETRI_PLACES=109, PETRI_TRANSITIONS=109} [2023-11-19 07:36:49,636 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -24 predicate places. [2023-11-19 07:36:49,637 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 109 transitions, 225 flow [2023-11-19 07:36:49,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 343.0) internal successors, (1029), 3 states have internal predecessors, (1029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:49,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:49,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:49,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:36:49,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:36:49,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:49,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1071205008, now seen corresponding path program 1 times [2023-11-19 07:36:49,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:49,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868782507] [2023-11-19 07:36:49,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:49,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:49,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:49,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:49,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868782507] [2023-11-19 07:36:49,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868782507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:49,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:49,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:49,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503824605] [2023-11-19 07:36:49,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:49,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:49,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:49,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:49,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:49,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 666 [2023-11-19 07:36:49,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 109 transitions, 225 flow. Second operand has 3 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:49,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:36:49,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 666 [2023-11-19 07:36:49,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:36:50,604 INFO L124 PetriNetUnfolderBase]: 2358/6443 cut-off events. [2023-11-19 07:36:50,604 INFO L125 PetriNetUnfolderBase]: For 63/63 co-relation queries the response was YES. [2023-11-19 07:36:50,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9709 conditions, 6443 events. 2358/6443 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 300. Compared 61583 event pairs, 1401 based on Foata normal form. 0/5095 useless extension candidates. Maximal degree in co-relation 9705. Up to 2647 conditions per place. [2023-11-19 07:36:50,666 INFO L140 encePairwiseOnDemand]: 662/666 looper letters, 56 selfloop transitions, 3 changer transitions 0/130 dead transitions. [2023-11-19 07:36:50,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 130 transitions, 387 flow [2023-11-19 07:36:50,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:50,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:36:50,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1098 transitions. [2023-11-19 07:36:50,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5495495495495496 [2023-11-19 07:36:50,677 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1098 transitions. [2023-11-19 07:36:50,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1098 transitions. [2023-11-19 07:36:50,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:36:50,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1098 transitions. [2023-11-19 07:36:50,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 366.0) internal successors, (1098), 3 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:50,688 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:50,691 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:50,691 INFO L175 Difference]: Start difference. First operand has 109 places, 109 transitions, 225 flow. Second operand 3 states and 1098 transitions. [2023-11-19 07:36:50,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 130 transitions, 387 flow [2023-11-19 07:36:50,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 130 transitions, 386 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:36:50,695 INFO L231 Difference]: Finished difference. Result has 109 places, 108 transitions, 228 flow [2023-11-19 07:36:50,696 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=109, PETRI_TRANSITIONS=108} [2023-11-19 07:36:50,697 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -24 predicate places. [2023-11-19 07:36:50,697 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 108 transitions, 228 flow [2023-11-19 07:36:50,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:50,698 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:50,698 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:50,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:36:50,699 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:36:50,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:50,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1152424453, now seen corresponding path program 1 times [2023-11-19 07:36:50,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:50,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713647618] [2023-11-19 07:36:50,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:50,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:50,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:50,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713647618] [2023-11-19 07:36:50,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713647618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:50,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:50,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:50,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239314162] [2023-11-19 07:36:50,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:50,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:50,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:50,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:50,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:50,851 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 666 [2023-11-19 07:36:50,853 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 108 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:50,853 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:36:50,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 666 [2023-11-19 07:36:50,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:36:52,741 INFO L124 PetriNetUnfolderBase]: 6566/15088 cut-off events. [2023-11-19 07:36:52,742 INFO L125 PetriNetUnfolderBase]: For 809/809 co-relation queries the response was YES. [2023-11-19 07:36:52,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24948 conditions, 15088 events. 6566/15088 cut-off events. For 809/809 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 145710 event pairs, 1433 based on Foata normal form. 0/13047 useless extension candidates. Maximal degree in co-relation 24944. Up to 7564 conditions per place. [2023-11-19 07:36:52,872 INFO L140 encePairwiseOnDemand]: 657/666 looper letters, 69 selfloop transitions, 3 changer transitions 0/130 dead transitions. [2023-11-19 07:36:52,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 130 transitions, 424 flow [2023-11-19 07:36:52,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:52,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:36:52,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1083 transitions. [2023-11-19 07:36:52,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5420420420420421 [2023-11-19 07:36:52,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1083 transitions. [2023-11-19 07:36:52,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1083 transitions. [2023-11-19 07:36:52,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:36:52,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1083 transitions. [2023-11-19 07:36:52,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 361.0) internal successors, (1083), 3 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:52,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:52,891 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:52,891 INFO L175 Difference]: Start difference. First operand has 109 places, 108 transitions, 228 flow. Second operand 3 states and 1083 transitions. [2023-11-19 07:36:52,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 130 transitions, 424 flow [2023-11-19 07:36:52,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 130 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:36:52,937 INFO L231 Difference]: Finished difference. Result has 104 places, 105 transitions, 231 flow [2023-11-19 07:36:52,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=231, PETRI_PLACES=104, PETRI_TRANSITIONS=105} [2023-11-19 07:36:52,939 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -29 predicate places. [2023-11-19 07:36:52,940 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 105 transitions, 231 flow [2023-11-19 07:36:52,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 337.3333333333333) internal successors, (1012), 3 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:52,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:52,941 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:52,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:36:52,941 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:36:52,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:52,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1013172851, now seen corresponding path program 1 times [2023-11-19 07:36:52,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:52,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715840320] [2023-11-19 07:36:52,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:52,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:53,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:53,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:53,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715840320] [2023-11-19 07:36:53,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715840320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:53,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:53,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:53,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830026296] [2023-11-19 07:36:53,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:53,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:53,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:53,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:53,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:53,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 666 [2023-11-19 07:36:53,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 105 transitions, 231 flow. Second operand has 3 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:53,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:36:53,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 666 [2023-11-19 07:36:53,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:36:54,066 INFO L124 PetriNetUnfolderBase]: 4134/9422 cut-off events. [2023-11-19 07:36:54,067 INFO L125 PetriNetUnfolderBase]: For 470/470 co-relation queries the response was YES. [2023-11-19 07:36:54,097 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16011 conditions, 9422 events. 4134/9422 cut-off events. For 470/470 co-relation queries the response was YES. Maximal size of possible extension queue 358. Compared 82529 event pairs, 2813 based on Foata normal form. 0/7578 useless extension candidates. Maximal degree in co-relation 16007. Up to 5636 conditions per place. [2023-11-19 07:36:54,136 INFO L140 encePairwiseOnDemand]: 663/666 looper letters, 40 selfloop transitions, 1 changer transitions 0/103 dead transitions. [2023-11-19 07:36:54,137 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 103 transitions, 309 flow [2023-11-19 07:36:54,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:54,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:36:54,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1063 transitions. [2023-11-19 07:36:54,141 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5320320320320321 [2023-11-19 07:36:54,142 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1063 transitions. [2023-11-19 07:36:54,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1063 transitions. [2023-11-19 07:36:54,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:36:54,143 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1063 transitions. [2023-11-19 07:36:54,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 354.3333333333333) internal successors, (1063), 3 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:54,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:54,155 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:54,155 INFO L175 Difference]: Start difference. First operand has 104 places, 105 transitions, 231 flow. Second operand 3 states and 1063 transitions. [2023-11-19 07:36:54,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 103 transitions, 309 flow [2023-11-19 07:36:54,157 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 103 transitions, 309 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:36:54,159 INFO L231 Difference]: Finished difference. Result has 104 places, 103 transitions, 229 flow [2023-11-19 07:36:54,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=229, PETRI_PLACES=104, PETRI_TRANSITIONS=103} [2023-11-19 07:36:54,163 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -29 predicate places. [2023-11-19 07:36:54,163 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 103 transitions, 229 flow [2023-11-19 07:36:54,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:54,165 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:54,165 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:54,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:36:54,165 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:36:54,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:54,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1863906244, now seen corresponding path program 1 times [2023-11-19 07:36:54,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:54,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313532685] [2023-11-19 07:36:54,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:54,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:54,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:54,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313532685] [2023-11-19 07:36:54,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313532685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:54,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:54,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:54,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985959632] [2023-11-19 07:36:54,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:54,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:54,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:54,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:54,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:54,261 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 666 [2023-11-19 07:36:54,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 103 transitions, 229 flow. Second operand has 3 states, 3 states have (on average 349.6666666666667) internal successors, (1049), 3 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:54,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:36:54,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 666 [2023-11-19 07:36:54,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:36:55,336 INFO L124 PetriNetUnfolderBase]: 3550/8232 cut-off events. [2023-11-19 07:36:55,337 INFO L125 PetriNetUnfolderBase]: For 471/471 co-relation queries the response was YES. [2023-11-19 07:36:55,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13922 conditions, 8232 events. 3550/8232 cut-off events. For 471/471 co-relation queries the response was YES. Maximal size of possible extension queue 294. Compared 72249 event pairs, 2052 based on Foata normal form. 0/6558 useless extension candidates. Maximal degree in co-relation 13917. Up to 4200 conditions per place. [2023-11-19 07:36:55,419 INFO L140 encePairwiseOnDemand]: 662/666 looper letters, 58 selfloop transitions, 3 changer transitions 0/123 dead transitions. [2023-11-19 07:36:55,419 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 123 transitions, 403 flow [2023-11-19 07:36:55,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:55,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:36:55,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1095 transitions. [2023-11-19 07:36:55,425 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5480480480480481 [2023-11-19 07:36:55,425 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1095 transitions. [2023-11-19 07:36:55,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1095 transitions. [2023-11-19 07:36:55,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:36:55,427 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1095 transitions. [2023-11-19 07:36:55,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 365.0) internal successors, (1095), 3 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:55,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:55,440 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:55,441 INFO L175 Difference]: Start difference. First operand has 104 places, 103 transitions, 229 flow. Second operand 3 states and 1095 transitions. [2023-11-19 07:36:55,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 123 transitions, 403 flow [2023-11-19 07:36:55,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 123 transitions, 402 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:36:55,445 INFO L231 Difference]: Finished difference. Result has 104 places, 102 transitions, 232 flow [2023-11-19 07:36:55,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=232, PETRI_PLACES=104, PETRI_TRANSITIONS=102} [2023-11-19 07:36:55,447 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -29 predicate places. [2023-11-19 07:36:55,447 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 102 transitions, 232 flow [2023-11-19 07:36:55,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 349.6666666666667) internal successors, (1049), 3 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:55,449 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:55,449 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:55,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:36:55,449 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:36:55,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:55,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1716895461, now seen corresponding path program 1 times [2023-11-19 07:36:55,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:55,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910162907] [2023-11-19 07:36:55,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:55,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:55,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:36:55,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:55,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910162907] [2023-11-19 07:36:55,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910162907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:55,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:55,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:36:55,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58719375] [2023-11-19 07:36:55,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:55,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:36:55,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:55,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:36:55,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:36:55,688 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 347 out of 666 [2023-11-19 07:36:55,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 102 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 349.6666666666667) internal successors, (1049), 3 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:55,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:36:55,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 347 of 666 [2023-11-19 07:36:55,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:36:56,655 INFO L124 PetriNetUnfolderBase]: 3550/8506 cut-off events. [2023-11-19 07:36:56,656 INFO L125 PetriNetUnfolderBase]: For 731/731 co-relation queries the response was YES. [2023-11-19 07:36:56,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14579 conditions, 8506 events. 3550/8506 cut-off events. For 731/731 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 76724 event pairs, 2355 based on Foata normal form. 0/6932 useless extension candidates. Maximal degree in co-relation 14574. Up to 4835 conditions per place. [2023-11-19 07:36:56,733 INFO L140 encePairwiseOnDemand]: 663/666 looper letters, 39 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2023-11-19 07:36:56,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 103 transitions, 316 flow [2023-11-19 07:36:56,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:36:56,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:36:56,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1080 transitions. [2023-11-19 07:36:56,739 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5405405405405406 [2023-11-19 07:36:56,739 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1080 transitions. [2023-11-19 07:36:56,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1080 transitions. [2023-11-19 07:36:56,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:36:56,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1080 transitions. [2023-11-19 07:36:56,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 360.0) internal successors, (1080), 3 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:56,750 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:56,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 666.0) internal successors, (2664), 4 states have internal predecessors, (2664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:56,751 INFO L175 Difference]: Start difference. First operand has 104 places, 102 transitions, 232 flow. Second operand 3 states and 1080 transitions. [2023-11-19 07:36:56,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 103 transitions, 316 flow [2023-11-19 07:36:56,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 103 transitions, 310 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 07:36:56,764 INFO L231 Difference]: Finished difference. Result has 105 places, 103 transitions, 238 flow [2023-11-19 07:36:56,766 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=105, PETRI_TRANSITIONS=103} [2023-11-19 07:36:56,768 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -28 predicate places. [2023-11-19 07:36:56,769 INFO L495 AbstractCegarLoop]: Abstraction has has 105 places, 103 transitions, 238 flow [2023-11-19 07:36:56,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 349.6666666666667) internal successors, (1049), 3 states have internal predecessors, (1049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:56,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:56,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:56,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:36:56,770 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:36:56,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:56,772 INFO L85 PathProgramCache]: Analyzing trace with hash 906940394, now seen corresponding path program 1 times [2023-11-19 07:36:56,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:56,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374285864] [2023-11-19 07:36:56,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:56,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:36:57,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:36:57,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:36:57,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374285864] [2023-11-19 07:36:57,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374285864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:36:57,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:36:57,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:36:57,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056765320] [2023-11-19 07:36:57,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:36:57,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:36:57,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:36:57,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:36:57,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:36:57,819 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 666 [2023-11-19 07:36:57,822 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 103 transitions, 238 flow. Second operand has 6 states, 6 states have (on average 342.1666666666667) internal successors, (2053), 6 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:57,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:36:57,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 666 [2023-11-19 07:36:57,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:36:59,733 INFO L124 PetriNetUnfolderBase]: 10130/15894 cut-off events. [2023-11-19 07:36:59,734 INFO L125 PetriNetUnfolderBase]: For 1316/1316 co-relation queries the response was YES. [2023-11-19 07:36:59,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31315 conditions, 15894 events. 10130/15894 cut-off events. For 1316/1316 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 108033 event pairs, 898 based on Foata normal form. 0/12108 useless extension candidates. Maximal degree in co-relation 31309. Up to 4854 conditions per place. [2023-11-19 07:36:59,881 INFO L140 encePairwiseOnDemand]: 661/666 looper letters, 149 selfloop transitions, 4 changer transitions 0/210 dead transitions. [2023-11-19 07:36:59,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 210 transitions, 818 flow [2023-11-19 07:36:59,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:36:59,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:36:59,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2178 transitions. [2023-11-19 07:36:59,890 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.545045045045045 [2023-11-19 07:36:59,890 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2178 transitions. [2023-11-19 07:36:59,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2178 transitions. [2023-11-19 07:36:59,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:36:59,892 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2178 transitions. [2023-11-19 07:36:59,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 363.0) internal successors, (2178), 6 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:59,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:59,911 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:59,911 INFO L175 Difference]: Start difference. First operand has 105 places, 103 transitions, 238 flow. Second operand 6 states and 2178 transitions. [2023-11-19 07:36:59,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 210 transitions, 818 flow [2023-11-19 07:36:59,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 210 transitions, 814 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-19 07:36:59,919 INFO L231 Difference]: Finished difference. Result has 108 places, 102 transitions, 240 flow [2023-11-19 07:36:59,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=240, PETRI_PLACES=108, PETRI_TRANSITIONS=102} [2023-11-19 07:36:59,922 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -25 predicate places. [2023-11-19 07:36:59,922 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 102 transitions, 240 flow [2023-11-19 07:36:59,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 342.1666666666667) internal successors, (2053), 6 states have internal predecessors, (2053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:36:59,924 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:36:59,924 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:36:59,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:36:59,924 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:36:59,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:36:59,925 INFO L85 PathProgramCache]: Analyzing trace with hash 2033780625, now seen corresponding path program 1 times [2023-11-19 07:36:59,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:36:59,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885096429] [2023-11-19 07:36:59,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:36:59,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:36:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:00,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:00,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:00,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885096429] [2023-11-19 07:37:00,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885096429] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:00,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178178990] [2023-11-19 07:37:00,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:00,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:00,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:00,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:00,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:37:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:00,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:37:00,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:00,330 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:00,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178178990] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:00,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:00,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-19 07:37:00,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832045912] [2023-11-19 07:37:00,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:00,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:37:00,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:00,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:37:00,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:37:00,875 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 666 [2023-11-19 07:37:00,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 102 transitions, 240 flow. Second operand has 12 states, 12 states have (on average 340.4166666666667) internal successors, (4085), 12 states have internal predecessors, (4085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:00,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:00,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 666 [2023-11-19 07:37:00,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:02,245 INFO L124 PetriNetUnfolderBase]: 5303/12659 cut-off events. [2023-11-19 07:37:02,245 INFO L125 PetriNetUnfolderBase]: For 1354/1354 co-relation queries the response was YES. [2023-11-19 07:37:02,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22290 conditions, 12659 events. 5303/12659 cut-off events. For 1354/1354 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 122322 event pairs, 2954 based on Foata normal form. 0/10370 useless extension candidates. Maximal degree in co-relation 22284. Up to 4835 conditions per place. [2023-11-19 07:37:02,339 INFO L140 encePairwiseOnDemand]: 659/666 looper letters, 92 selfloop transitions, 6 changer transitions 0/159 dead transitions. [2023-11-19 07:37:02,340 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 159 transitions, 586 flow [2023-11-19 07:37:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:02,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:37:02,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2127 transitions. [2023-11-19 07:37:02,348 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5322822822822822 [2023-11-19 07:37:02,349 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2127 transitions. [2023-11-19 07:37:02,349 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2127 transitions. [2023-11-19 07:37:02,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:02,351 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2127 transitions. [2023-11-19 07:37:02,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 354.5) internal successors, (2127), 6 states have internal predecessors, (2127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:02,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:02,367 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:02,368 INFO L175 Difference]: Start difference. First operand has 108 places, 102 transitions, 240 flow. Second operand 6 states and 2127 transitions. [2023-11-19 07:37:02,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 159 transitions, 586 flow [2023-11-19 07:37:02,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 159 transitions, 575 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:37:02,392 INFO L231 Difference]: Finished difference. Result has 112 places, 106 transitions, 278 flow [2023-11-19 07:37:02,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=278, PETRI_PLACES=112, PETRI_TRANSITIONS=106} [2023-11-19 07:37:02,393 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -21 predicate places. [2023-11-19 07:37:02,393 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 106 transitions, 278 flow [2023-11-19 07:37:02,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 340.4166666666667) internal successors, (4085), 12 states have internal predecessors, (4085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:02,395 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:02,395 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:02,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:02,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-19 07:37:02,610 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:37:02,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:02,611 INFO L85 PathProgramCache]: Analyzing trace with hash 322949730, now seen corresponding path program 2 times [2023-11-19 07:37:02,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:02,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392125610] [2023-11-19 07:37:02,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:02,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:03,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:37:03,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:03,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392125610] [2023-11-19 07:37:03,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392125610] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:03,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:03,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:03,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563432817] [2023-11-19 07:37:03,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:03,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:03,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:03,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:03,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:03,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 666 [2023-11-19 07:37:03,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 106 transitions, 278 flow. Second operand has 6 states, 6 states have (on average 341.0) internal successors, (2046), 6 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:03,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:03,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 666 [2023-11-19 07:37:03,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:05,812 INFO L124 PetriNetUnfolderBase]: 7271/16274 cut-off events. [2023-11-19 07:37:05,812 INFO L125 PetriNetUnfolderBase]: For 2345/2345 co-relation queries the response was YES. [2023-11-19 07:37:05,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29370 conditions, 16274 events. 7271/16274 cut-off events. For 2345/2345 co-relation queries the response was YES. Maximal size of possible extension queue 567. Compared 156706 event pairs, 3666 based on Foata normal form. 0/13614 useless extension candidates. Maximal degree in co-relation 29361. Up to 7343 conditions per place. [2023-11-19 07:37:05,941 INFO L140 encePairwiseOnDemand]: 660/666 looper letters, 134 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2023-11-19 07:37:05,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 194 transitions, 756 flow [2023-11-19 07:37:05,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:05,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:37:05,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2166 transitions. [2023-11-19 07:37:05,951 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5420420420420421 [2023-11-19 07:37:05,951 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2166 transitions. [2023-11-19 07:37:05,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2166 transitions. [2023-11-19 07:37:05,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:05,954 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2166 transitions. [2023-11-19 07:37:05,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:05,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:05,971 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:05,971 INFO L175 Difference]: Start difference. First operand has 112 places, 106 transitions, 278 flow. Second operand 6 states and 2166 transitions. [2023-11-19 07:37:05,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 194 transitions, 756 flow [2023-11-19 07:37:05,976 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 194 transitions, 746 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-19 07:37:05,979 INFO L231 Difference]: Finished difference. Result has 115 places, 106 transitions, 282 flow [2023-11-19 07:37:05,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=282, PETRI_PLACES=115, PETRI_TRANSITIONS=106} [2023-11-19 07:37:05,980 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -18 predicate places. [2023-11-19 07:37:05,980 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 106 transitions, 282 flow [2023-11-19 07:37:05,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 341.0) internal successors, (2046), 6 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:05,981 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:05,981 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:05,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:37:05,982 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:37:05,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:05,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1255470519, now seen corresponding path program 1 times [2023-11-19 07:37:05,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:05,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636904293] [2023-11-19 07:37:05,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:05,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:06,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:06,140 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:06,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:06,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636904293] [2023-11-19 07:37:06,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636904293] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:06,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690668722] [2023-11-19 07:37:06,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:06,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:06,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:06,143 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:06,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:37:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:06,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:37:06,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:06,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:06,340 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:06,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:06,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690668722] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:06,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:06,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-19 07:37:06,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638061622] [2023-11-19 07:37:06,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:06,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:37:06,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:06,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:37:06,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:37:06,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 666 [2023-11-19 07:37:06,835 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 106 transitions, 282 flow. Second operand has 12 states, 12 states have (on average 338.5833333333333) internal successors, (4063), 12 states have internal predecessors, (4063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:06,835 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:06,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 666 [2023-11-19 07:37:06,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:08,144 INFO L124 PetriNetUnfolderBase]: 4544/10115 cut-off events. [2023-11-19 07:37:08,144 INFO L125 PetriNetUnfolderBase]: For 1716/1767 co-relation queries the response was YES. [2023-11-19 07:37:08,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19110 conditions, 10115 events. 4544/10115 cut-off events. For 1716/1767 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 87829 event pairs, 2893 based on Foata normal form. 0/8247 useless extension candidates. Maximal degree in co-relation 19100. Up to 5285 conditions per place. [2023-11-19 07:37:08,201 INFO L140 encePairwiseOnDemand]: 659/666 looper letters, 81 selfloop transitions, 6 changer transitions 0/147 dead transitions. [2023-11-19 07:37:08,201 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 147 transitions, 563 flow [2023-11-19 07:37:08,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:08,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:37:08,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2105 transitions. [2023-11-19 07:37:08,208 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5267767767767768 [2023-11-19 07:37:08,209 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2105 transitions. [2023-11-19 07:37:08,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2105 transitions. [2023-11-19 07:37:08,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:08,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2105 transitions. [2023-11-19 07:37:08,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 350.8333333333333) internal successors, (2105), 6 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:08,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:08,223 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:08,223 INFO L175 Difference]: Start difference. First operand has 115 places, 106 transitions, 282 flow. Second operand 6 states and 2105 transitions. [2023-11-19 07:37:08,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 147 transitions, 563 flow [2023-11-19 07:37:08,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 147 transitions, 555 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:37:08,230 INFO L231 Difference]: Finished difference. Result has 118 places, 108 transitions, 303 flow [2023-11-19 07:37:08,230 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=303, PETRI_PLACES=118, PETRI_TRANSITIONS=108} [2023-11-19 07:37:08,230 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -15 predicate places. [2023-11-19 07:37:08,231 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 108 transitions, 303 flow [2023-11-19 07:37:08,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 338.5833333333333) internal successors, (4063), 12 states have internal predecessors, (4063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:08,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:08,232 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:08,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:37:08,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 07:37:08,448 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:37:08,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:08,448 INFO L85 PathProgramCache]: Analyzing trace with hash 2119454792, now seen corresponding path program 2 times [2023-11-19 07:37:08,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:08,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917856485] [2023-11-19 07:37:08,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:08,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:08,764 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:37:08,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:08,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917856485] [2023-11-19 07:37:08,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917856485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:08,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:08,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:08,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385786306] [2023-11-19 07:37:08,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:08,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:08,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:08,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:08,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:09,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 666 [2023-11-19 07:37:09,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 108 transitions, 303 flow. Second operand has 6 states, 6 states have (on average 341.3333333333333) internal successors, (2048), 6 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:09,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:09,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 666 [2023-11-19 07:37:09,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:10,972 INFO L124 PetriNetUnfolderBase]: 7034/14145 cut-off events. [2023-11-19 07:37:10,972 INFO L125 PetriNetUnfolderBase]: For 3551/3622 co-relation queries the response was YES. [2023-11-19 07:37:11,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28809 conditions, 14145 events. 7034/14145 cut-off events. For 3551/3622 co-relation queries the response was YES. Maximal size of possible extension queue 629. Compared 122676 event pairs, 3207 based on Foata normal form. 0/11873 useless extension candidates. Maximal degree in co-relation 28797. Up to 6316 conditions per place. [2023-11-19 07:37:11,116 INFO L140 encePairwiseOnDemand]: 660/666 looper letters, 141 selfloop transitions, 5 changer transitions 0/200 dead transitions. [2023-11-19 07:37:11,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 200 transitions, 851 flow [2023-11-19 07:37:11,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:11,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:37:11,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2166 transitions. [2023-11-19 07:37:11,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5420420420420421 [2023-11-19 07:37:11,132 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2166 transitions. [2023-11-19 07:37:11,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2166 transitions. [2023-11-19 07:37:11,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:11,142 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2166 transitions. [2023-11-19 07:37:11,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 361.0) internal successors, (2166), 6 states have internal predecessors, (2166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:11,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:11,187 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:11,187 INFO L175 Difference]: Start difference. First operand has 118 places, 108 transitions, 303 flow. Second operand 6 states and 2166 transitions. [2023-11-19 07:37:11,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 200 transitions, 851 flow [2023-11-19 07:37:11,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 200 transitions, 844 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:37:11,209 INFO L231 Difference]: Finished difference. Result has 120 places, 108 transitions, 310 flow [2023-11-19 07:37:11,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=310, PETRI_PLACES=120, PETRI_TRANSITIONS=108} [2023-11-19 07:37:11,211 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -13 predicate places. [2023-11-19 07:37:11,211 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 108 transitions, 310 flow [2023-11-19 07:37:11,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 341.3333333333333) internal successors, (2048), 6 states have internal predecessors, (2048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:11,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:11,212 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:11,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:37:11,213 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:37:11,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:11,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1391598282, now seen corresponding path program 1 times [2023-11-19 07:37:11,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:11,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70670008] [2023-11-19 07:37:11,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:11,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:11,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:11,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70670008] [2023-11-19 07:37:11,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70670008] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:37:11,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161017218] [2023-11-19 07:37:11,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:11,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:37:11,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:37:11,375 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:37:11,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:37:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:11,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:37:11,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:37:11,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:11,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:37:11,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:37:11,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161017218] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:37:11,659 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:37:11,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-11-19 07:37:11,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913086764] [2023-11-19 07:37:11,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:37:11,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-19 07:37:11,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:11,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-19 07:37:11,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:37:12,180 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 666 [2023-11-19 07:37:12,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 108 transitions, 310 flow. Second operand has 12 states, 12 states have (on average 339.25) internal successors, (4071), 12 states have internal predecessors, (4071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:12,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:12,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 666 [2023-11-19 07:37:12,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:13,430 INFO L124 PetriNetUnfolderBase]: 4476/9690 cut-off events. [2023-11-19 07:37:13,430 INFO L125 PetriNetUnfolderBase]: For 2457/2520 co-relation queries the response was YES. [2023-11-19 07:37:13,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20164 conditions, 9690 events. 4476/9690 cut-off events. For 2457/2520 co-relation queries the response was YES. Maximal size of possible extension queue 380. Compared 81896 event pairs, 3080 based on Foata normal form. 0/7959 useless extension candidates. Maximal degree in co-relation 20151. Up to 5858 conditions per place. [2023-11-19 07:37:13,529 INFO L140 encePairwiseOnDemand]: 659/666 looper letters, 65 selfloop transitions, 6 changer transitions 0/130 dead transitions. [2023-11-19 07:37:13,529 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 130 transitions, 519 flow [2023-11-19 07:37:13,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:13,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:37:13,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2090 transitions. [2023-11-19 07:37:13,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5230230230230231 [2023-11-19 07:37:13,537 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2090 transitions. [2023-11-19 07:37:13,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2090 transitions. [2023-11-19 07:37:13,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:13,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2090 transitions. [2023-11-19 07:37:13,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 348.3333333333333) internal successors, (2090), 6 states have internal predecessors, (2090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:13,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:13,555 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:13,555 INFO L175 Difference]: Start difference. First operand has 120 places, 108 transitions, 310 flow. Second operand 6 states and 2090 transitions. [2023-11-19 07:37:13,556 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 130 transitions, 519 flow [2023-11-19 07:37:13,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 130 transitions, 511 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:37:13,571 INFO L231 Difference]: Finished difference. Result has 123 places, 110 transitions, 331 flow [2023-11-19 07:37:13,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=331, PETRI_PLACES=123, PETRI_TRANSITIONS=110} [2023-11-19 07:37:13,572 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -10 predicate places. [2023-11-19 07:37:13,572 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 110 transitions, 331 flow [2023-11-19 07:37:13,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 339.25) internal successors, (4071), 12 states have internal predecessors, (4071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:13,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:13,575 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:13,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-19 07:37:13,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_186c6de8-878b-4c85-a1c4-e37a128acd71/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 07:37:13,791 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:37:13,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:13,792 INFO L85 PathProgramCache]: Analyzing trace with hash -31400057, now seen corresponding path program 2 times [2023-11-19 07:37:13,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:13,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428575339] [2023-11-19 07:37:13,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:13,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:14,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:37:14,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:14,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428575339] [2023-11-19 07:37:14,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428575339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:14,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:14,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:14,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686890743] [2023-11-19 07:37:14,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:14,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:14,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:14,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:14,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:14,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 666 [2023-11-19 07:37:14,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 110 transitions, 331 flow. Second operand has 6 states, 6 states have (on average 342.0) internal successors, (2052), 6 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:14,864 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:14,864 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 666 [2023-11-19 07:37:14,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:16,265 INFO L124 PetriNetUnfolderBase]: 6306/12321 cut-off events. [2023-11-19 07:37:16,265 INFO L125 PetriNetUnfolderBase]: For 3804/3867 co-relation queries the response was YES. [2023-11-19 07:37:16,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27092 conditions, 12321 events. 6306/12321 cut-off events. For 3804/3867 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 101746 event pairs, 2906 based on Foata normal form. 0/10322 useless extension candidates. Maximal degree in co-relation 27077. Up to 5753 conditions per place. [2023-11-19 07:37:16,382 INFO L140 encePairwiseOnDemand]: 660/666 looper letters, 136 selfloop transitions, 5 changer transitions 0/194 dead transitions. [2023-11-19 07:37:16,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 194 transitions, 901 flow [2023-11-19 07:37:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:16,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:37:16,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2154 transitions. [2023-11-19 07:37:16,390 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.539039039039039 [2023-11-19 07:37:16,390 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2154 transitions. [2023-11-19 07:37:16,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2154 transitions. [2023-11-19 07:37:16,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:16,392 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2154 transitions. [2023-11-19 07:37:16,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:16,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:16,405 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:16,405 INFO L175 Difference]: Start difference. First operand has 123 places, 110 transitions, 331 flow. Second operand 6 states and 2154 transitions. [2023-11-19 07:37:16,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 194 transitions, 901 flow [2023-11-19 07:37:16,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 194 transitions, 894 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-19 07:37:16,434 INFO L231 Difference]: Finished difference. Result has 125 places, 110 transitions, 338 flow [2023-11-19 07:37:16,435 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=338, PETRI_PLACES=125, PETRI_TRANSITIONS=110} [2023-11-19 07:37:16,436 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -8 predicate places. [2023-11-19 07:37:16,436 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 110 transitions, 338 flow [2023-11-19 07:37:16,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 342.0) internal successors, (2052), 6 states have internal predecessors, (2052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:16,437 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:16,437 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:16,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:37:16,437 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:37:16,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:16,438 INFO L85 PathProgramCache]: Analyzing trace with hash 314503978, now seen corresponding path program 1 times [2023-11-19 07:37:16,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:16,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544124368] [2023-11-19 07:37:16,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:16,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:16,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:37:16,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:16,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544124368] [2023-11-19 07:37:16,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544124368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:16,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:16,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:16,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601589771] [2023-11-19 07:37:16,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:16,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:16,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:16,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:16,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:17,372 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 666 [2023-11-19 07:37:17,374 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 110 transitions, 338 flow. Second operand has 6 states, 6 states have (on average 342.8333333333333) internal successors, (2057), 6 states have internal predecessors, (2057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:17,374 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:17,374 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 666 [2023-11-19 07:37:17,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:37:18,834 INFO L124 PetriNetUnfolderBase]: 5761/11796 cut-off events. [2023-11-19 07:37:18,834 INFO L125 PetriNetUnfolderBase]: For 3707/3707 co-relation queries the response was YES. [2023-11-19 07:37:18,906 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26591 conditions, 11796 events. 5761/11796 cut-off events. For 3707/3707 co-relation queries the response was YES. Maximal size of possible extension queue 411. Compared 99126 event pairs, 3125 based on Foata normal form. 0/10036 useless extension candidates. Maximal degree in co-relation 26575. Up to 6152 conditions per place. [2023-11-19 07:37:18,951 INFO L140 encePairwiseOnDemand]: 661/666 looper letters, 152 selfloop transitions, 4 changer transitions 0/209 dead transitions. [2023-11-19 07:37:18,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 209 transitions, 1052 flow [2023-11-19 07:37:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:37:18,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:37:18,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2150 transitions. [2023-11-19 07:37:18,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5380380380380381 [2023-11-19 07:37:18,957 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2150 transitions. [2023-11-19 07:37:18,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2150 transitions. [2023-11-19 07:37:18,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:37:18,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2150 transitions. [2023-11-19 07:37:18,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 358.3333333333333) internal successors, (2150), 6 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:18,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:18,972 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 666.0) internal successors, (4662), 7 states have internal predecessors, (4662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:18,973 INFO L175 Difference]: Start difference. First operand has 125 places, 110 transitions, 338 flow. Second operand 6 states and 2150 transitions. [2023-11-19 07:37:18,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 209 transitions, 1052 flow [2023-11-19 07:37:19,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 209 transitions, 1040 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:37:19,005 INFO L231 Difference]: Finished difference. Result has 125 places, 109 transitions, 336 flow [2023-11-19 07:37:19,005 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=666, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=336, PETRI_PLACES=125, PETRI_TRANSITIONS=109} [2023-11-19 07:37:19,006 INFO L281 CegarLoopForPetriNet]: 133 programPoint places, -8 predicate places. [2023-11-19 07:37:19,006 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 109 transitions, 336 flow [2023-11-19 07:37:19,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 342.8333333333333) internal successors, (2057), 6 states have internal predecessors, (2057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:19,007 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:37:19,007 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:37:19,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:37:19,007 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-19 07:37:19,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:37:19,008 INFO L85 PathProgramCache]: Analyzing trace with hash 923630794, now seen corresponding path program 1 times [2023-11-19 07:37:19,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:37:19,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405435291] [2023-11-19 07:37:19,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:37:19,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:37:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:37:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:37:19,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:37:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405435291] [2023-11-19 07:37:19,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405435291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:37:19,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:37:19,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:37:19,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945955900] [2023-11-19 07:37:19,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:37:19,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:37:19,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:37:19,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:37:19,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:37:19,935 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 666 [2023-11-19 07:37:19,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 109 transitions, 336 flow. Second operand has 6 states, 6 states have (on average 341.0) internal successors, (2046), 6 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:37:19,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:37:19,937 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 666 [2023-11-19 07:37:19,937 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand