./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 0e0057cc 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_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme --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 0.2.4-dev-0e0057c [2023-11-26 11:46:57,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:46:58,012 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:46:58,018 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:46:58,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:46:58,055 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:46:58,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:46:58,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:46:58,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:46:58,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:46:58,064 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:46:58,065 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:46:58,065 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:46:58,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:46:58,069 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:46:58,069 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:46:58,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:46:58,070 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:46:58,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:46:58,071 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:46:58,072 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:46:58,073 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:46:58,073 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:46:58,074 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:46:58,074 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:46:58,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:46:58,075 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:46:58,076 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:46:58,077 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:46:58,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:46:58,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:46:58,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:46:58,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:46:58,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:46:58,080 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:46:58,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:46:58,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:46:58,081 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:46:58,082 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:46:58,083 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:46:58,083 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:46:58,084 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_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 39e987e3198040ef6af9e29359b0ab7bee89306d1945f6e4e7a9286ebbe2a705 [2023-11-26 11:46:58,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:46:58,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:46:58,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:46:58,456 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:46:58,456 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:46:58,458 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c [2023-11-26 11:47:01,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:47:01,906 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:47:01,906 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/sv-benchmarks/c/weaver/popl20-more-sorted.wvr.c [2023-11-26 11:47:01,917 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/data/52dcb0ed4/f7bbaa4fddcb4684900a666406287c8c/FLAGbe647ae68 [2023-11-26 11:47:01,939 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/data/52dcb0ed4/f7bbaa4fddcb4684900a666406287c8c [2023-11-26 11:47:01,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:47:01,947 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:47:01,950 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:47:01,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:47:01,956 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:47:01,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:47:01" (1/1) ... [2023-11-26 11:47:01,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f91b30d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:01, skipping insertion in model container [2023-11-26 11:47:01,960 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:47:01" (1/1) ... [2023-11-26 11:47:01,994 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:47:02,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:47:02,328 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:47:02,398 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:47:02,430 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:47:02,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02 WrapperNode [2023-11-26 11:47:02,431 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:47:02,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:47:02,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:47:02,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:47:02,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (1/1) ... [2023-11-26 11:47:02,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (1/1) ... [2023-11-26 11:47:02,487 INFO L138 Inliner]: procedures = 24, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 178 [2023-11-26 11:47:02,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:47:02,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:47:02,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:47:02,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:47:02,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (1/1) ... [2023-11-26 11:47:02,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (1/1) ... [2023-11-26 11:47:02,505 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (1/1) ... [2023-11-26 11:47:02,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (1/1) ... [2023-11-26 11:47:02,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (1/1) ... [2023-11-26 11:47:02,526 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (1/1) ... [2023-11-26 11:47:02,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (1/1) ... [2023-11-26 11:47:02,531 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (1/1) ... [2023-11-26 11:47:02,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:47:02,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:47:02,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:47:02,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:47:02,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (1/1) ... [2023-11-26 11:47:02,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:47:02,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:02,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:02,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:47:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:47:02,633 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 11:47:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 11:47:02,634 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 11:47:02,634 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 11:47:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-26 11:47:02,635 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-26 11:47:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:47:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:47:02,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:47:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:47:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:47:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:47:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:47:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:47:02,641 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:47:02,790 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:47:02,792 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:47:03,603 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:47:03,629 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:47:03,631 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-26 11:47:03,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:03 BoogieIcfgContainer [2023-11-26 11:47:03,634 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:47:03,637 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:47:03,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:47:03,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:47:03,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:47:01" (1/3) ... [2023-11-26 11:47:03,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2a34d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:47:03, skipping insertion in model container [2023-11-26 11:47:03,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:02" (2/3) ... [2023-11-26 11:47:03,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2a34d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:47:03, skipping insertion in model container [2023-11-26 11:47:03,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:03" (3/3) ... [2023-11-26 11:47:03,646 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-sorted.wvr.c [2023-11-26 11:47:03,654 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:47:03,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:47:03,663 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 39 error locations. [2023-11-26 11:47:03,663 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:47:03,816 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-26 11:47:03,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 362 places, 369 transitions, 759 flow [2023-11-26 11:47:04,057 INFO L124 PetriNetUnfolderBase]: 17/366 cut-off events. [2023-11-26 11:47:04,058 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 11:47:04,071 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. [2023-11-26 11:47:04,072 INFO L82 GeneralOperation]: Start removeDead. Operand has 362 places, 369 transitions, 759 flow [2023-11-26 11:47:04,086 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 335 places, 340 transitions, 698 flow [2023-11-26 11:47:04,097 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:47:04,106 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;@6d37f9ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:47:04,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-11-26 11:47:04,116 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:47:04,117 INFO L124 PetriNetUnfolderBase]: 0/22 cut-off events. [2023-11-26 11:47:04,117 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:47:04,119 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:04,122 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, 1] [2023-11-26 11:47:04,123 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)] === [2023-11-26 11:47:04,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:04,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1351549692, now seen corresponding path program 1 times [2023-11-26 11:47:04,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:04,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869350124] [2023-11-26 11:47:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:04,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:04,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:04,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:04,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869350124] [2023-11-26 11:47:04,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869350124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:04,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:04,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:04,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166662175] [2023-11-26 11:47:04,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:04,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:04,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:04,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:04,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:04,583 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 369 [2023-11-26 11:47:04,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 340 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:04,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:04,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 369 [2023-11-26 11:47:04,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:04,874 INFO L124 PetriNetUnfolderBase]: 28/637 cut-off events. [2023-11-26 11:47:04,874 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-26 11:47:04,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 689 conditions, 637 events. 28/637 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2629 event pairs, 7 based on Foata normal form. 16/542 useless extension candidates. Maximal degree in co-relation 459. Up to 31 conditions per place. [2023-11-26 11:47:04,888 INFO L140 encePairwiseOnDemand]: 359/369 looper letters, 13 selfloop transitions, 2 changer transitions 3/332 dead transitions. [2023-11-26 11:47:04,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 332 transitions, 712 flow [2023-11-26 11:47:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:04,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:04,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1052 transitions. [2023-11-26 11:47:04,913 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.950316169828365 [2023-11-26 11:47:04,914 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1052 transitions. [2023-11-26 11:47:04,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1052 transitions. [2023-11-26 11:47:04,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:04,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1052 transitions. [2023-11-26 11:47:04,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:04,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:04,942 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:04,944 INFO L175 Difference]: Start difference. First operand has 335 places, 340 transitions, 698 flow. Second operand 3 states and 1052 transitions. [2023-11-26 11:47:04,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 332 transitions, 712 flow [2023-11-26 11:47:04,953 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 332 transitions, 700 flow, removed 0 selfloop flow, removed 6 redundant places. [2023-11-26 11:47:04,963 INFO L231 Difference]: Finished difference. Result has 330 places, 329 transitions, 668 flow [2023-11-26 11:47:04,965 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=668, PETRI_PLACES=330, PETRI_TRANSITIONS=329} [2023-11-26 11:47:04,970 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -5 predicate places. [2023-11-26 11:47:04,971 INFO L495 AbstractCegarLoop]: Abstraction has has 330 places, 329 transitions, 668 flow [2023-11-26 11:47:04,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:04,972 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:04,972 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:04,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:47:04,973 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:04,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:04,974 INFO L85 PathProgramCache]: Analyzing trace with hash -938939812, now seen corresponding path program 1 times [2023-11-26 11:47:04,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:04,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227584493] [2023-11-26 11:47:04,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:04,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:05,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:05,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:05,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227584493] [2023-11-26 11:47:05,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227584493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:05,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:05,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:05,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324840634] [2023-11-26 11:47:05,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:05,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:05,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:05,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:05,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:05,119 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 369 [2023-11-26 11:47:05,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 329 transitions, 668 flow. Second operand has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:05,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:05,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 369 [2023-11-26 11:47:05,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:05,251 INFO L124 PetriNetUnfolderBase]: 19/495 cut-off events. [2023-11-26 11:47:05,252 INFO L125 PetriNetUnfolderBase]: For 5/8 co-relation queries the response was YES. [2023-11-26 11:47:05,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 495 events. 19/495 cut-off events. For 5/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1880 event pairs, 5 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 502. Up to 27 conditions per place. [2023-11-26 11:47:05,261 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 13 selfloop transitions, 2 changer transitions 0/328 dead transitions. [2023-11-26 11:47:05,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 328 transitions, 696 flow [2023-11-26 11:47:05,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:05,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:05,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1045 transitions. [2023-11-26 11:47:05,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9439927732610659 [2023-11-26 11:47:05,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1045 transitions. [2023-11-26 11:47:05,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1045 transitions. [2023-11-26 11:47:05,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:05,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1045 transitions. [2023-11-26 11:47:05,270 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 348.3333333333333) internal successors, (1045), 3 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:05,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:05,275 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:05,276 INFO L175 Difference]: Start difference. First operand has 330 places, 329 transitions, 668 flow. Second operand 3 states and 1045 transitions. [2023-11-26 11:47:05,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 328 transitions, 696 flow [2023-11-26 11:47:05,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 328 transitions, 692 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:05,287 INFO L231 Difference]: Finished difference. Result has 326 places, 328 transitions, 666 flow [2023-11-26 11:47:05,287 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=666, PETRI_PLACES=326, PETRI_TRANSITIONS=328} [2023-11-26 11:47:05,288 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -9 predicate places. [2023-11-26 11:47:05,288 INFO L495 AbstractCegarLoop]: Abstraction has has 326 places, 328 transitions, 666 flow [2023-11-26 11:47:05,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.3333333333333) internal successors, (1033), 3 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:05,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:05,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:05,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:47:05,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:05,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:05,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1808662504, now seen corresponding path program 1 times [2023-11-26 11:47:05,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:05,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598221493] [2023-11-26 11:47:05,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:05,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:05,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:05,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:05,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:05,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598221493] [2023-11-26 11:47:05,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598221493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:05,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:05,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:05,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857534751] [2023-11-26 11:47:05,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:05,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:05,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:05,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:05,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:05,411 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 369 [2023-11-26 11:47:05,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 328 transitions, 666 flow. Second operand has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:05,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:05,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 369 [2023-11-26 11:47:05,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:05,656 INFO L124 PetriNetUnfolderBase]: 35/680 cut-off events. [2023-11-26 11:47:05,656 INFO L125 PetriNetUnfolderBase]: For 8/14 co-relation queries the response was YES. [2023-11-26 11:47:05,662 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 680 events. 35/680 cut-off events. For 8/14 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3140 event pairs, 12 based on Foata normal form. 0/573 useless extension candidates. Maximal degree in co-relation 700. Up to 46 conditions per place. [2023-11-26 11:47:05,668 INFO L140 encePairwiseOnDemand]: 364/369 looper letters, 14 selfloop transitions, 1 changer transitions 0/324 dead transitions. [2023-11-26 11:47:05,669 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 324 transitions, 688 flow [2023-11-26 11:47:05,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:05,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:05,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1042 transitions. [2023-11-26 11:47:05,673 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.941282746160795 [2023-11-26 11:47:05,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1042 transitions. [2023-11-26 11:47:05,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1042 transitions. [2023-11-26 11:47:05,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:05,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1042 transitions. [2023-11-26 11:47:05,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:05,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:05,708 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:05,708 INFO L175 Difference]: Start difference. First operand has 326 places, 328 transitions, 666 flow. Second operand 3 states and 1042 transitions. [2023-11-26 11:47:05,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 324 transitions, 688 flow [2023-11-26 11:47:05,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 324 transitions, 684 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:05,718 INFO L231 Difference]: Finished difference. Result has 322 places, 324 transitions, 656 flow [2023-11-26 11:47:05,719 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=322, PETRI_TRANSITIONS=324} [2023-11-26 11:47:05,719 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -13 predicate places. [2023-11-26 11:47:05,720 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 324 transitions, 656 flow [2023-11-26 11:47:05,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:05,721 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:05,721 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:05,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:47:05,722 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:05,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:05,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1521308739, now seen corresponding path program 1 times [2023-11-26 11:47:05,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:05,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166259034] [2023-11-26 11:47:05,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:05,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:06,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:06,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:06,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166259034] [2023-11-26 11:47:06,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166259034] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:06,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:06,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:06,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034011674] [2023-11-26 11:47:06,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:06,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:06,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:06,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:06,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:47:06,902 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 369 [2023-11-26 11:47:06,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 324 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:06,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:06,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 369 [2023-11-26 11:47:06,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:16,250 INFO L124 PetriNetUnfolderBase]: 12136/44891 cut-off events. [2023-11-26 11:47:16,250 INFO L125 PetriNetUnfolderBase]: For 182/212 co-relation queries the response was YES. [2023-11-26 11:47:16,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60502 conditions, 44891 events. 12136/44891 cut-off events. For 182/212 co-relation queries the response was YES. Maximal size of possible extension queue 1139. Compared 611206 event pairs, 9904 based on Foata normal form. 0/37625 useless extension candidates. Maximal degree in co-relation 60464. Up to 15512 conditions per place. [2023-11-26 11:47:16,893 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 50 selfloop transitions, 5 changer transitions 0/323 dead transitions. [2023-11-26 11:47:16,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 323 transitions, 764 flow [2023-11-26 11:47:16,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:47:16,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:47:16,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1880 transitions. [2023-11-26 11:47:16,902 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8491418247515808 [2023-11-26 11:47:16,903 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1880 transitions. [2023-11-26 11:47:16,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1880 transitions. [2023-11-26 11:47:16,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:16,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1880 transitions. [2023-11-26 11:47:16,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 313.3333333333333) internal successors, (1880), 6 states have internal predecessors, (1880), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:16,920 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:16,922 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:16,923 INFO L175 Difference]: Start difference. First operand has 322 places, 324 transitions, 656 flow. Second operand 6 states and 1880 transitions. [2023-11-26 11:47:16,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 323 transitions, 764 flow [2023-11-26 11:47:16,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 323 transitions, 763 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:47:16,933 INFO L231 Difference]: Finished difference. Result has 325 places, 323 transitions, 663 flow [2023-11-26 11:47:16,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=653, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=663, PETRI_PLACES=325, PETRI_TRANSITIONS=323} [2023-11-26 11:47:16,936 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -10 predicate places. [2023-11-26 11:47:16,936 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 323 transitions, 663 flow [2023-11-26 11:47:16,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 305.5) internal successors, (1833), 6 states have internal predecessors, (1833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:16,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:16,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:16,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:47:16,940 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:16,941 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:16,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1239758313, now seen corresponding path program 1 times [2023-11-26 11:47:16,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:16,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113603107] [2023-11-26 11:47:16,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:16,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:17,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:17,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:17,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113603107] [2023-11-26 11:47:17,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113603107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:17,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:17,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:17,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872420895] [2023-11-26 11:47:17,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:17,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:17,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:17,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:17,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:17,069 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 369 [2023-11-26 11:47:17,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 323 transitions, 663 flow. Second operand has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:17,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 369 [2023-11-26 11:47:17,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:17,310 INFO L124 PetriNetUnfolderBase]: 84/1066 cut-off events. [2023-11-26 11:47:17,310 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-26 11:47:17,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1201 conditions, 1066 events. 84/1066 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 6806 event pairs, 56 based on Foata normal form. 0/912 useless extension candidates. Maximal degree in co-relation 1183. Up to 112 conditions per place. [2023-11-26 11:47:17,325 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 15 selfloop transitions, 2 changer transitions 0/322 dead transitions. [2023-11-26 11:47:17,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 326 places, 322 transitions, 695 flow [2023-11-26 11:47:17,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:17,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:17,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1041 transitions. [2023-11-26 11:47:17,330 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.940379403794038 [2023-11-26 11:47:17,331 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1041 transitions. [2023-11-26 11:47:17,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1041 transitions. [2023-11-26 11:47:17,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:17,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1041 transitions. [2023-11-26 11:47:17,337 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 347.0) internal successors, (1041), 3 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,341 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,342 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,343 INFO L175 Difference]: Start difference. First operand has 325 places, 323 transitions, 663 flow. Second operand 3 states and 1041 transitions. [2023-11-26 11:47:17,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 326 places, 322 transitions, 695 flow [2023-11-26 11:47:17,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 322 transitions, 685 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:47:17,353 INFO L231 Difference]: Finished difference. Result has 321 places, 322 transitions, 655 flow [2023-11-26 11:47:17,354 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=651, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=655, PETRI_PLACES=321, PETRI_TRANSITIONS=322} [2023-11-26 11:47:17,355 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -14 predicate places. [2023-11-26 11:47:17,355 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 322 transitions, 655 flow [2023-11-26 11:47:17,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.3333333333333) internal successors, (1027), 3 states have internal predecessors, (1027), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,356 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:17,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:17,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:47:17,357 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:17,358 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:17,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1204226176, now seen corresponding path program 1 times [2023-11-26 11:47:17,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:17,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707483559] [2023-11-26 11:47:17,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:17,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:17,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:17,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:17,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:17,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707483559] [2023-11-26 11:47:17,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707483559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:17,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:17,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:17,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253644819] [2023-11-26 11:47:17,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:17,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:17,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:17,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:17,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:17,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 369 [2023-11-26 11:47:17,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 322 transitions, 655 flow. Second operand has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 3 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,449 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:17,449 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 369 [2023-11-26 11:47:17,449 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:17,579 INFO L124 PetriNetUnfolderBase]: 20/557 cut-off events. [2023-11-26 11:47:17,579 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 11:47:17,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 592 conditions, 557 events. 20/557 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2420 event pairs, 4 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 553. Up to 21 conditions per place. [2023-11-26 11:47:17,588 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 12 selfloop transitions, 2 changer transitions 0/321 dead transitions. [2023-11-26 11:47:17,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 321 transitions, 681 flow [2023-11-26 11:47:17,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1047 transitions. [2023-11-26 11:47:17,593 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.94579945799458 [2023-11-26 11:47:17,593 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1047 transitions. [2023-11-26 11:47:17,593 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1047 transitions. [2023-11-26 11:47:17,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:17,594 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1047 transitions. [2023-11-26 11:47:17,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,604 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,604 INFO L175 Difference]: Start difference. First operand has 321 places, 322 transitions, 655 flow. Second operand 3 states and 1047 transitions. [2023-11-26 11:47:17,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 321 transitions, 681 flow [2023-11-26 11:47:17,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 321 transitions, 677 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:17,613 INFO L231 Difference]: Finished difference. Result has 320 places, 321 transitions, 653 flow [2023-11-26 11:47:17,614 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=653, PETRI_PLACES=320, PETRI_TRANSITIONS=321} [2023-11-26 11:47:17,618 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -15 predicate places. [2023-11-26 11:47:17,618 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 321 transitions, 653 flow [2023-11-26 11:47:17,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 3 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,619 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:17,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:17,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:47:17,620 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:17,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:17,621 INFO L85 PathProgramCache]: Analyzing trace with hash 545520053, now seen corresponding path program 1 times [2023-11-26 11:47:17,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:17,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657439414] [2023-11-26 11:47:17,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:17,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:17,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:17,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:17,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657439414] [2023-11-26 11:47:17,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657439414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:17,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:17,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:17,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558755090] [2023-11-26 11:47:17,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:17,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:17,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:17,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:17,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:17,723 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 369 [2023-11-26 11:47:17,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 321 transitions, 653 flow. Second operand has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 3 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,725 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:17,725 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 369 [2023-11-26 11:47:17,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:17,824 INFO L124 PetriNetUnfolderBase]: 17/421 cut-off events. [2023-11-26 11:47:17,824 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2023-11-26 11:47:17,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 457 conditions, 421 events. 17/421 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1299 event pairs, 4 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 418. Up to 24 conditions per place. [2023-11-26 11:47:17,830 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 12 selfloop transitions, 2 changer transitions 0/320 dead transitions. [2023-11-26 11:47:17,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 320 transitions, 679 flow [2023-11-26 11:47:17,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:17,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1047 transitions. [2023-11-26 11:47:17,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.94579945799458 [2023-11-26 11:47:17,836 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1047 transitions. [2023-11-26 11:47:17,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1047 transitions. [2023-11-26 11:47:17,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:17,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1047 transitions. [2023-11-26 11:47:17,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,846 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,846 INFO L175 Difference]: Start difference. First operand has 320 places, 321 transitions, 653 flow. Second operand 3 states and 1047 transitions. [2023-11-26 11:47:17,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 320 transitions, 679 flow [2023-11-26 11:47:17,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 320 transitions, 675 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:17,856 INFO L231 Difference]: Finished difference. Result has 319 places, 320 transitions, 651 flow [2023-11-26 11:47:17,860 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=651, PETRI_PLACES=319, PETRI_TRANSITIONS=320} [2023-11-26 11:47:17,861 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -16 predicate places. [2023-11-26 11:47:17,861 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 320 transitions, 651 flow [2023-11-26 11:47:17,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 3 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,862 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:17,863 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:17,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:47:17,863 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:17,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:17,864 INFO L85 PathProgramCache]: Analyzing trace with hash -220956238, now seen corresponding path program 1 times [2023-11-26 11:47:17,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:17,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226790777] [2023-11-26 11:47:17,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:17,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:17,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:17,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:17,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226790777] [2023-11-26 11:47:17,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226790777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:17,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:17,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:17,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731918867] [2023-11-26 11:47:17,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:17,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:17,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:17,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:17,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:17,953 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 369 [2023-11-26 11:47:17,956 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 320 transitions, 651 flow. Second operand has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 3 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:17,956 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:17,956 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 369 [2023-11-26 11:47:17,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:18,056 INFO L124 PetriNetUnfolderBase]: 17/418 cut-off events. [2023-11-26 11:47:18,057 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-26 11:47:18,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 452 conditions, 418 events. 17/418 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1179 event pairs, 4 based on Foata normal form. 0/366 useless extension candidates. Maximal degree in co-relation 413. Up to 24 conditions per place. [2023-11-26 11:47:18,062 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 12 selfloop transitions, 2 changer transitions 0/319 dead transitions. [2023-11-26 11:47:18,063 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 319 transitions, 677 flow [2023-11-26 11:47:18,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:18,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:18,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1047 transitions. [2023-11-26 11:47:18,068 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.94579945799458 [2023-11-26 11:47:18,068 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1047 transitions. [2023-11-26 11:47:18,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1047 transitions. [2023-11-26 11:47:18,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:18,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1047 transitions. [2023-11-26 11:47:18,074 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 349.0) internal successors, (1047), 3 states have internal predecessors, (1047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,078 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,079 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,206 INFO L175 Difference]: Start difference. First operand has 319 places, 320 transitions, 651 flow. Second operand 3 states and 1047 transitions. [2023-11-26 11:47:18,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 319 transitions, 677 flow [2023-11-26 11:47:18,209 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 319 transitions, 673 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:18,214 INFO L231 Difference]: Finished difference. Result has 318 places, 319 transitions, 649 flow [2023-11-26 11:47:18,215 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=317, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=649, PETRI_PLACES=318, PETRI_TRANSITIONS=319} [2023-11-26 11:47:18,216 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -17 predicate places. [2023-11-26 11:47:18,216 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 319 transitions, 649 flow [2023-11-26 11:47:18,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.3333333333333) internal successors, (1036), 3 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,217 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:18,217 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:18,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:47:18,217 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:18,218 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:18,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1678131968, now seen corresponding path program 1 times [2023-11-26 11:47:18,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:18,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426538658] [2023-11-26 11:47:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:18,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:18,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:18,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:18,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426538658] [2023-11-26 11:47:18,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426538658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:18,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:18,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:18,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394832819] [2023-11-26 11:47:18,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:18,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:18,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:18,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:18,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:18,277 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 369 [2023-11-26 11:47:18,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 319 transitions, 649 flow. Second operand has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:18,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 369 [2023-11-26 11:47:18,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:18,410 INFO L124 PetriNetUnfolderBase]: 49/771 cut-off events. [2023-11-26 11:47:18,410 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2023-11-26 11:47:18,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 839 conditions, 771 events. 49/771 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 3912 event pairs, 20 based on Foata normal form. 0/653 useless extension candidates. Maximal degree in co-relation 800. Up to 56 conditions per place. [2023-11-26 11:47:18,420 INFO L140 encePairwiseOnDemand]: 364/369 looper letters, 14 selfloop transitions, 1 changer transitions 0/315 dead transitions. [2023-11-26 11:47:18,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 315 transitions, 671 flow [2023-11-26 11:47:18,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:18,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:18,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1042 transitions. [2023-11-26 11:47:18,424 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.941282746160795 [2023-11-26 11:47:18,424 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1042 transitions. [2023-11-26 11:47:18,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1042 transitions. [2023-11-26 11:47:18,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:18,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1042 transitions. [2023-11-26 11:47:18,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,433 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,433 INFO L175 Difference]: Start difference. First operand has 318 places, 319 transitions, 649 flow. Second operand 3 states and 1042 transitions. [2023-11-26 11:47:18,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 315 transitions, 671 flow [2023-11-26 11:47:18,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 315 transitions, 667 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:18,441 INFO L231 Difference]: Finished difference. Result has 314 places, 315 transitions, 639 flow [2023-11-26 11:47:18,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=639, PETRI_PLACES=314, PETRI_TRANSITIONS=315} [2023-11-26 11:47:18,442 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -21 predicate places. [2023-11-26 11:47:18,442 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 315 transitions, 639 flow [2023-11-26 11:47:18,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,443 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:18,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:18,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:47:18,444 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:18,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:18,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1598542239, now seen corresponding path program 1 times [2023-11-26 11:47:18,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:18,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200766461] [2023-11-26 11:47:18,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:18,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:18,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:18,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:18,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200766461] [2023-11-26 11:47:18,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200766461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:18,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:18,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:18,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501113988] [2023-11-26 11:47:18,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:18,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:18,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:18,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:18,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:18,510 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 369 [2023-11-26 11:47:18,512 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 315 transitions, 639 flow. Second operand has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,512 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:18,512 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 369 [2023-11-26 11:47:18,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:18,597 INFO L124 PetriNetUnfolderBase]: 20/489 cut-off events. [2023-11-26 11:47:18,597 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-26 11:47:18,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 527 conditions, 489 events. 20/489 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1891 event pairs, 2 based on Foata normal form. 1/434 useless extension candidates. Maximal degree in co-relation 489. Up to 13 conditions per place. [2023-11-26 11:47:18,603 INFO L140 encePairwiseOnDemand]: 364/369 looper letters, 11 selfloop transitions, 3 changer transitions 0/315 dead transitions. [2023-11-26 11:47:18,603 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 315 transitions, 669 flow [2023-11-26 11:47:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:18,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:18,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1054 transitions. [2023-11-26 11:47:18,608 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.952122854561879 [2023-11-26 11:47:18,608 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1054 transitions. [2023-11-26 11:47:18,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1054 transitions. [2023-11-26 11:47:18,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:18,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1054 transitions. [2023-11-26 11:47:18,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.3333333333333) internal successors, (1054), 3 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,617 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,617 INFO L175 Difference]: Start difference. First operand has 314 places, 315 transitions, 639 flow. Second operand 3 states and 1054 transitions. [2023-11-26 11:47:18,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 315 transitions, 669 flow [2023-11-26 11:47:18,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 315 transitions, 668 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:47:18,625 INFO L231 Difference]: Finished difference. Result has 313 places, 313 transitions, 640 flow [2023-11-26 11:47:18,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=640, PETRI_PLACES=313, PETRI_TRANSITIONS=313} [2023-11-26 11:47:18,627 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -22 predicate places. [2023-11-26 11:47:18,627 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 313 transitions, 640 flow [2023-11-26 11:47:18,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.3333333333333) internal successors, (1042), 3 states have internal predecessors, (1042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,629 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:18,629 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:18,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:47:18,629 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:18,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:18,630 INFO L85 PathProgramCache]: Analyzing trace with hash -280485053, now seen corresponding path program 1 times [2023-11-26 11:47:18,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:18,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315784126] [2023-11-26 11:47:18,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:18,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:18,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:18,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:18,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315784126] [2023-11-26 11:47:18,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315784126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:18,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:18,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:18,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91155364] [2023-11-26 11:47:18,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:18,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:18,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:18,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:18,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:18,705 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 369 [2023-11-26 11:47:18,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 313 transitions, 640 flow. Second operand has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:18,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:18,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 369 [2023-11-26 11:47:18,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:19,336 INFO L124 PetriNetUnfolderBase]: 472/3564 cut-off events. [2023-11-26 11:47:19,336 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-26 11:47:19,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4214 conditions, 3564 events. 472/3564 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 33034 event pairs, 172 based on Foata normal form. 0/3082 useless extension candidates. Maximal degree in co-relation 4176. Up to 577 conditions per place. [2023-11-26 11:47:19,383 INFO L140 encePairwiseOnDemand]: 360/369 looper letters, 24 selfloop transitions, 3 changer transitions 0/315 dead transitions. [2023-11-26 11:47:19,383 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 315 transitions, 703 flow [2023-11-26 11:47:19,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:19,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:19,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1038 transitions. [2023-11-26 11:47:19,389 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9376693766937669 [2023-11-26 11:47:19,389 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1038 transitions. [2023-11-26 11:47:19,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1038 transitions. [2023-11-26 11:47:19,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:19,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1038 transitions. [2023-11-26 11:47:19,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 346.0) internal successors, (1038), 3 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:19,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:19,400 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:19,400 INFO L175 Difference]: Start difference. First operand has 313 places, 313 transitions, 640 flow. Second operand 3 states and 1038 transitions. [2023-11-26 11:47:19,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 315 transitions, 703 flow [2023-11-26 11:47:19,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 315 transitions, 697 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:19,482 INFO L231 Difference]: Finished difference. Result has 308 places, 310 transitions, 643 flow [2023-11-26 11:47:19,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=622, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=643, PETRI_PLACES=308, PETRI_TRANSITIONS=310} [2023-11-26 11:47:19,484 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -27 predicate places. [2023-11-26 11:47:19,484 INFO L495 AbstractCegarLoop]: Abstraction has has 308 places, 310 transitions, 643 flow [2023-11-26 11:47:19,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 336.3333333333333) internal successors, (1009), 3 states have internal predecessors, (1009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:19,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:19,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:19,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:47:19,486 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:19,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:19,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1037785543, now seen corresponding path program 1 times [2023-11-26 11:47:19,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:19,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271728104] [2023-11-26 11:47:19,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:19,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:19,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:19,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:19,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:19,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271728104] [2023-11-26 11:47:19,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271728104] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:19,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:19,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:19,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085198588] [2023-11-26 11:47:19,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:19,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:19,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:19,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:19,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:19,566 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 369 [2023-11-26 11:47:19,567 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 310 transitions, 643 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) [2023-11-26 11:47:19,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:19,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 369 [2023-11-26 11:47:19,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:19,829 INFO L124 PetriNetUnfolderBase]: 81/1226 cut-off events. [2023-11-26 11:47:19,829 INFO L125 PetriNetUnfolderBase]: For 9/13 co-relation queries the response was YES. [2023-11-26 11:47:19,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1373 conditions, 1226 events. 81/1226 cut-off events. For 9/13 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 7498 event pairs, 13 based on Foata normal form. 0/1087 useless extension candidates. Maximal degree in co-relation 1335. Up to 50 conditions per place. [2023-11-26 11:47:19,851 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 13 selfloop transitions, 2 changer transitions 0/311 dead transitions. [2023-11-26 11:47:19,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 311 transitions, 677 flow [2023-11-26 11:47:19,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:19,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1054 transitions. [2023-11-26 11:47:19,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.952122854561879 [2023-11-26 11:47:19,856 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1054 transitions. [2023-11-26 11:47:19,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1054 transitions. [2023-11-26 11:47:19,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:19,857 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1054 transitions. [2023-11-26 11:47:19,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.3333333333333) internal successors, (1054), 3 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:19,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:19,864 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:19,865 INFO L175 Difference]: Start difference. First operand has 308 places, 310 transitions, 643 flow. Second operand 3 states and 1054 transitions. [2023-11-26 11:47:19,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 311 transitions, 677 flow [2023-11-26 11:47:19,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 311 transitions, 677 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:47:19,873 INFO L231 Difference]: Finished difference. Result has 309 places, 309 transitions, 645 flow [2023-11-26 11:47:19,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=641, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=645, PETRI_PLACES=309, PETRI_TRANSITIONS=309} [2023-11-26 11:47:19,875 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -26 predicate places. [2023-11-26 11:47:19,875 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 309 transitions, 645 flow [2023-11-26 11:47:19,876 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) [2023-11-26 11:47:19,876 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:19,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:19,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:47:19,877 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:19,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:19,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1349435817, now seen corresponding path program 1 times [2023-11-26 11:47:19,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:19,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142786326] [2023-11-26 11:47:19,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:19,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:19,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:19,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:19,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142786326] [2023-11-26 11:47:19,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142786326] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:19,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:19,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:19,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087671632] [2023-11-26 11:47:19,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:19,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:19,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:19,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:19,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:19,958 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 369 [2023-11-26 11:47:19,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 309 transitions, 645 flow. Second operand has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:19,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:19,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 369 [2023-11-26 11:47:19,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:20,158 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([969] thread3EXIT-->L89-7: Formula: (and (= 0 v_thread3Thread1of1ForFork2_thidvar1_4) (= 0 v_thread3Thread1of1ForFork2_thidvar3_4) (= 0 v_thread3Thread1of1ForFork2_thidvar2_4) (= (let ((.cse0 (mod |v_ULTIMATE.start_main_#t~mem34#1_6| 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0))) v_thread3Thread1of1ForFork2_thidvar0_4)) InVars {thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4, ULTIMATE.start_main_#t~mem34#1=|v_ULTIMATE.start_main_#t~mem34#1_6|} OutVars{thread3Thread1of1ForFork2_thidvar3=v_thread3Thread1of1ForFork2_thidvar3_4, thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_4, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_4, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_4, ULTIMATE.start_main_#t~mem34#1=|v_ULTIMATE.start_main_#t~mem34#1_6|} AuxVars[] AssignedVars[][299], [417#true, 319#L89-7true, 413#true, Black: 408#true, 410#(= |#race~A~0| 0), 402#(= |#race~M~0| 0), 375#(= |#race~N~0| 0)]) [2023-11-26 11:47:20,158 INFO L294 olderBase$Statistics]: this new event has 230 ancestors and is cut-off event [2023-11-26 11:47:20,159 INFO L297 olderBase$Statistics]: existing Event has 195 ancestors and is cut-off event [2023-11-26 11:47:20,159 INFO L297 olderBase$Statistics]: existing Event has 230 ancestors and is cut-off event [2023-11-26 11:47:20,159 INFO L297 olderBase$Statistics]: existing Event has 195 ancestors and is cut-off event [2023-11-26 11:47:20,160 INFO L124 PetriNetUnfolderBase]: 77/867 cut-off events. [2023-11-26 11:47:20,160 INFO L125 PetriNetUnfolderBase]: For 30/48 co-relation queries the response was YES. [2023-11-26 11:47:20,172 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1014 conditions, 867 events. 77/867 cut-off events. For 30/48 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 4427 event pairs, 7 based on Foata normal form. 3/778 useless extension candidates. Maximal degree in co-relation 975. Up to 47 conditions per place. [2023-11-26 11:47:20,178 INFO L140 encePairwiseOnDemand]: 364/369 looper letters, 11 selfloop transitions, 3 changer transitions 0/309 dead transitions. [2023-11-26 11:47:20,178 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 309 transitions, 675 flow [2023-11-26 11:47:20,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:20,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:20,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1054 transitions. [2023-11-26 11:47:20,182 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.952122854561879 [2023-11-26 11:47:20,182 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1054 transitions. [2023-11-26 11:47:20,183 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1054 transitions. [2023-11-26 11:47:20,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:20,184 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1054 transitions. [2023-11-26 11:47:20,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.3333333333333) internal successors, (1054), 3 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:20,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:20,191 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:20,192 INFO L175 Difference]: Start difference. First operand has 309 places, 309 transitions, 645 flow. Second operand 3 states and 1054 transitions. [2023-11-26 11:47:20,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 309 transitions, 675 flow [2023-11-26 11:47:20,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 309 transitions, 671 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:20,200 INFO L231 Difference]: Finished difference. Result has 307 places, 307 transitions, 643 flow [2023-11-26 11:47:20,200 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=643, PETRI_PLACES=307, PETRI_TRANSITIONS=307} [2023-11-26 11:47:20,201 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -28 predicate places. [2023-11-26 11:47:20,201 INFO L495 AbstractCegarLoop]: Abstraction has has 307 places, 307 transitions, 643 flow [2023-11-26 11:47:20,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 347.6666666666667) internal successors, (1043), 3 states have internal predecessors, (1043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:20,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:20,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:20,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 11:47:20,203 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:20,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:20,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1741383734, now seen corresponding path program 1 times [2023-11-26 11:47:20,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:20,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653226463] [2023-11-26 11:47:20,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:20,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:20,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:20,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:20,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653226463] [2023-11-26 11:47:20,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653226463] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:20,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:20,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:47:20,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104500011] [2023-11-26 11:47:20,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:20,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:47:20,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:20,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:47:20,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:47:20,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 369 [2023-11-26 11:47:20,629 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 307 transitions, 643 flow. Second operand has 7 states, 7 states have (on average 340.85714285714283) internal successors, (2386), 7 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:20,630 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:20,630 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 369 [2023-11-26 11:47:20,630 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:21,040 INFO L124 PetriNetUnfolderBase]: 95/1504 cut-off events. [2023-11-26 11:47:21,040 INFO L125 PetriNetUnfolderBase]: For 22/47 co-relation queries the response was YES. [2023-11-26 11:47:21,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1722 conditions, 1504 events. 95/1504 cut-off events. For 22/47 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 9510 event pairs, 18 based on Foata normal form. 4/1364 useless extension candidates. Maximal degree in co-relation 1681. Up to 71 conditions per place. [2023-11-26 11:47:21,070 INFO L140 encePairwiseOnDemand]: 356/369 looper letters, 22 selfloop transitions, 14 changer transitions 0/322 dead transitions. [2023-11-26 11:47:21,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 322 transitions, 753 flow [2023-11-26 11:47:21,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:47:21,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2023-11-26 11:47:21,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 3427 transitions. [2023-11-26 11:47:21,081 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9287262872628727 [2023-11-26 11:47:21,082 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 3427 transitions. [2023-11-26 11:47:21,082 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 3427 transitions. [2023-11-26 11:47:21,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:21,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 3427 transitions. [2023-11-26 11:47:21,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 342.7) internal successors, (3427), 10 states have internal predecessors, (3427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:21,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 369.0) internal successors, (4059), 11 states have internal predecessors, (4059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:21,106 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 369.0) internal successors, (4059), 11 states have internal predecessors, (4059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:21,106 INFO L175 Difference]: Start difference. First operand has 307 places, 307 transitions, 643 flow. Second operand 10 states and 3427 transitions. [2023-11-26 11:47:21,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 322 transitions, 753 flow [2023-11-26 11:47:21,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 322 transitions, 747 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:21,114 INFO L231 Difference]: Finished difference. Result has 318 places, 314 transitions, 703 flow [2023-11-26 11:47:21,115 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=637, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=703, PETRI_PLACES=318, PETRI_TRANSITIONS=314} [2023-11-26 11:47:21,116 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -17 predicate places. [2023-11-26 11:47:21,116 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 314 transitions, 703 flow [2023-11-26 11:47:21,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 340.85714285714283) internal successors, (2386), 7 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:21,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:21,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:21,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 11:47:21,118 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:21,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:21,118 INFO L85 PathProgramCache]: Analyzing trace with hash -234307777, now seen corresponding path program 1 times [2023-11-26 11:47:21,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:21,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553829565] [2023-11-26 11:47:21,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:21,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:21,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:21,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:21,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553829565] [2023-11-26 11:47:21,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553829565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:21,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:21,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:21,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45531487] [2023-11-26 11:47:21,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:21,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:21,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:21,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:21,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:21,219 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 369 [2023-11-26 11:47:21,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 314 transitions, 703 flow. Second operand has 3 states, 3 states have (on average 348.3333333333333) internal successors, (1045), 3 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:21,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:21,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 369 [2023-11-26 11:47:21,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:21,618 INFO L124 PetriNetUnfolderBase]: 136/1436 cut-off events. [2023-11-26 11:47:21,619 INFO L125 PetriNetUnfolderBase]: For 67/102 co-relation queries the response was YES. [2023-11-26 11:47:21,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1736 conditions, 1436 events. 136/1436 cut-off events. For 67/102 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9127 event pairs, 28 based on Foata normal form. 2/1299 useless extension candidates. Maximal degree in co-relation 1690. Up to 117 conditions per place. [2023-11-26 11:47:21,644 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 13 selfloop transitions, 2 changer transitions 0/315 dead transitions. [2023-11-26 11:47:21,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 315 transitions, 737 flow [2023-11-26 11:47:21,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:21,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:21,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1054 transitions. [2023-11-26 11:47:21,650 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.952122854561879 [2023-11-26 11:47:21,650 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1054 transitions. [2023-11-26 11:47:21,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1054 transitions. [2023-11-26 11:47:21,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:21,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1054 transitions. [2023-11-26 11:47:21,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.3333333333333) internal successors, (1054), 3 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:21,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:21,660 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:21,661 INFO L175 Difference]: Start difference. First operand has 318 places, 314 transitions, 703 flow. Second operand 3 states and 1054 transitions. [2023-11-26 11:47:21,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 315 transitions, 737 flow [2023-11-26 11:47:21,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 315 transitions, 733 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 11:47:21,672 INFO L231 Difference]: Finished difference. Result has 318 places, 313 transitions, 701 flow [2023-11-26 11:47:21,673 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=701, PETRI_PLACES=318, PETRI_TRANSITIONS=313} [2023-11-26 11:47:21,673 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -17 predicate places. [2023-11-26 11:47:21,674 INFO L495 AbstractCegarLoop]: Abstraction has has 318 places, 313 transitions, 701 flow [2023-11-26 11:47:21,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 348.3333333333333) internal successors, (1045), 3 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:21,674 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:21,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:21,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:47:21,675 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:21,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:21,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1375841549, now seen corresponding path program 1 times [2023-11-26 11:47:21,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:21,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332983283] [2023-11-26 11:47:21,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:21,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:22,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:22,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332983283] [2023-11-26 11:47:22,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332983283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:22,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:22,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:22,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851021511] [2023-11-26 11:47:22,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:22,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:22,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:22,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:22,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:47:23,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 369 [2023-11-26 11:47:23,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 313 transitions, 701 flow. Second operand has 6 states, 6 states have (on average 341.6666666666667) internal successors, (2050), 6 states have internal predecessors, (2050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:23,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:23,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 369 [2023-11-26 11:47:23,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:23,475 INFO L124 PetriNetUnfolderBase]: 47/957 cut-off events. [2023-11-26 11:47:23,475 INFO L125 PetriNetUnfolderBase]: For 23/74 co-relation queries the response was YES. [2023-11-26 11:47:23,482 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1099 conditions, 957 events. 47/957 cut-off events. For 23/74 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 4542 event pairs, 1 based on Foata normal form. 32/911 useless extension candidates. Maximal degree in co-relation 1052. Up to 32 conditions per place. [2023-11-26 11:47:23,486 INFO L140 encePairwiseOnDemand]: 364/369 looper letters, 13 selfloop transitions, 4 changer transitions 0/312 dead transitions. [2023-11-26 11:47:23,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 312 transitions, 733 flow [2023-11-26 11:47:23,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:47:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:47:23,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2058 transitions. [2023-11-26 11:47:23,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9295392953929539 [2023-11-26 11:47:23,493 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2058 transitions. [2023-11-26 11:47:23,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2058 transitions. [2023-11-26 11:47:23,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:23,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2058 transitions. [2023-11-26 11:47:23,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 343.0) internal successors, (2058), 6 states have internal predecessors, (2058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:23,509 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:23,511 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:23,511 INFO L175 Difference]: Start difference. First operand has 318 places, 313 transitions, 701 flow. Second operand 6 states and 2058 transitions. [2023-11-26 11:47:23,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 312 transitions, 733 flow [2023-11-26 11:47:23,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 312 transitions, 729 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:23,521 INFO L231 Difference]: Finished difference. Result has 320 places, 312 transitions, 703 flow [2023-11-26 11:47:23,522 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=315, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=703, PETRI_PLACES=320, PETRI_TRANSITIONS=312} [2023-11-26 11:47:23,523 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -15 predicate places. [2023-11-26 11:47:23,523 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 312 transitions, 703 flow [2023-11-26 11:47:23,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 341.6666666666667) internal successors, (2050), 6 states have internal predecessors, (2050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:23,524 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:23,525 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:23,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:47:23,525 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:23,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:23,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1215585802, now seen corresponding path program 1 times [2023-11-26 11:47:23,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:23,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659581949] [2023-11-26 11:47:23,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:23,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:23,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:23,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:23,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659581949] [2023-11-26 11:47:23,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659581949] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:23,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:23,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:23,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130595114] [2023-11-26 11:47:23,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:23,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:23,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:23,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:23,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:23,612 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 369 [2023-11-26 11:47:23,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 312 transitions, 703 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) [2023-11-26 11:47:23,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:23,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 369 [2023-11-26 11:47:23,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:24,013 INFO L124 PetriNetUnfolderBase]: 120/1329 cut-off events. [2023-11-26 11:47:24,014 INFO L125 PetriNetUnfolderBase]: For 79/128 co-relation queries the response was YES. [2023-11-26 11:47:24,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1578 conditions, 1329 events. 120/1329 cut-off events. For 79/128 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 7943 event pairs, 14 based on Foata normal form. 4/1205 useless extension candidates. Maximal degree in co-relation 1533. Up to 84 conditions per place. [2023-11-26 11:47:24,040 INFO L140 encePairwiseOnDemand]: 364/369 looper letters, 9 selfloop transitions, 2 changer transitions 9/312 dead transitions. [2023-11-26 11:47:24,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 312 transitions, 731 flow [2023-11-26 11:47:24,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:24,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:24,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1053 transitions. [2023-11-26 11:47:24,046 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9512195121951219 [2023-11-26 11:47:24,046 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1053 transitions. [2023-11-26 11:47:24,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1053 transitions. [2023-11-26 11:47:24,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:24,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1053 transitions. [2023-11-26 11:47:24,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 351.0) internal successors, (1053), 3 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:24,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:24,056 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:24,056 INFO L175 Difference]: Start difference. First operand has 320 places, 312 transitions, 703 flow. Second operand 3 states and 1053 transitions. [2023-11-26 11:47:24,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 312 transitions, 731 flow [2023-11-26 11:47:24,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 316 places, 312 transitions, 724 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:47:24,067 INFO L231 Difference]: Finished difference. Result has 316 places, 301 transitions, 677 flow [2023-11-26 11:47:24,067 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=692, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=677, PETRI_PLACES=316, PETRI_TRANSITIONS=301} [2023-11-26 11:47:24,068 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -19 predicate places. [2023-11-26 11:47:24,068 INFO L495 AbstractCegarLoop]: Abstraction has has 316 places, 301 transitions, 677 flow [2023-11-26 11:47:24,069 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) [2023-11-26 11:47:24,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:24,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:24,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:47:24,070 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:24,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:24,071 INFO L85 PathProgramCache]: Analyzing trace with hash 64617922, now seen corresponding path program 1 times [2023-11-26 11:47:24,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:24,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353487639] [2023-11-26 11:47:24,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:24,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:24,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:24,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:24,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353487639] [2023-11-26 11:47:24,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353487639] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:24,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:24,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:24,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171061666] [2023-11-26 11:47:24,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:24,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:47:24,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:24,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:47:24,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:47:24,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 369 [2023-11-26 11:47:24,317 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 316 places, 301 transitions, 677 flow. Second operand has 5 states, 5 states have (on average 343.0) internal successors, (1715), 5 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:24,318 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:24,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 369 [2023-11-26 11:47:24,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:24,949 INFO L124 PetriNetUnfolderBase]: 133/1829 cut-off events. [2023-11-26 11:47:24,949 INFO L125 PetriNetUnfolderBase]: For 60/70 co-relation queries the response was YES. [2023-11-26 11:47:24,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2180 conditions, 1829 events. 133/1829 cut-off events. For 60/70 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 12857 event pairs, 40 based on Foata normal form. 8/1682 useless extension candidates. Maximal degree in co-relation 2132. Up to 114 conditions per place. [2023-11-26 11:47:24,989 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 22 selfloop transitions, 5 changer transitions 0/311 dead transitions. [2023-11-26 11:47:24,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 311 transitions, 758 flow [2023-11-26 11:47:24,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:47:24,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 11:47:24,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1733 transitions. [2023-11-26 11:47:24,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9392953929539295 [2023-11-26 11:47:24,998 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1733 transitions. [2023-11-26 11:47:24,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1733 transitions. [2023-11-26 11:47:25,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:25,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1733 transitions. [2023-11-26 11:47:25,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 346.6) internal successors, (1733), 5 states have internal predecessors, (1733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:25,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 369.0) internal successors, (2214), 6 states have internal predecessors, (2214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:25,014 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 369.0) internal successors, (2214), 6 states have internal predecessors, (2214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:25,014 INFO L175 Difference]: Start difference. First operand has 316 places, 301 transitions, 677 flow. Second operand 5 states and 1733 transitions. [2023-11-26 11:47:25,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 311 transitions, 758 flow [2023-11-26 11:47:25,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 311 transitions, 754 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:25,026 INFO L231 Difference]: Finished difference. Result has 311 places, 303 transitions, 698 flow [2023-11-26 11:47:25,027 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=673, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=698, PETRI_PLACES=311, PETRI_TRANSITIONS=303} [2023-11-26 11:47:25,027 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -24 predicate places. [2023-11-26 11:47:25,028 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 303 transitions, 698 flow [2023-11-26 11:47:25,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 343.0) internal successors, (1715), 5 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:25,029 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:25,029 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:25,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 11:47:25,030 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread3Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:25,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:25,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1346939026, now seen corresponding path program 1 times [2023-11-26 11:47:25,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:25,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421573229] [2023-11-26 11:47:25,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:25,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:25,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:25,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:25,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421573229] [2023-11-26 11:47:25,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421573229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:25,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:25,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:47:25,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068306742] [2023-11-26 11:47:25,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:25,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:47:25,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:25,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:47:25,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:47:25,134 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 369 [2023-11-26 11:47:25,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 303 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 348.6666666666667) internal successors, (1046), 3 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:25,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:25,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 369 [2023-11-26 11:47:25,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:25,757 INFO L124 PetriNetUnfolderBase]: 234/2041 cut-off events. [2023-11-26 11:47:25,757 INFO L125 PetriNetUnfolderBase]: For 168/187 co-relation queries the response was YES. [2023-11-26 11:47:25,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2546 conditions, 2041 events. 234/2041 cut-off events. For 168/187 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 15831 event pairs, 55 based on Foata normal form. 0/1867 useless extension candidates. Maximal degree in co-relation 2499. Up to 216 conditions per place. [2023-11-26 11:47:25,796 INFO L140 encePairwiseOnDemand]: 366/369 looper letters, 11 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2023-11-26 11:47:25,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 304 transitions, 728 flow [2023-11-26 11:47:25,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:47:25,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:47:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1052 transitions. [2023-11-26 11:47:25,802 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.950316169828365 [2023-11-26 11:47:25,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1052 transitions. [2023-11-26 11:47:25,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1052 transitions. [2023-11-26 11:47:25,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:25,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1052 transitions. [2023-11-26 11:47:25,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 350.6666666666667) internal successors, (1052), 3 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:25,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:25,811 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 369.0) internal successors, (1476), 4 states have internal predecessors, (1476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:25,811 INFO L175 Difference]: Start difference. First operand has 311 places, 303 transitions, 698 flow. Second operand 3 states and 1052 transitions. [2023-11-26 11:47:25,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 304 transitions, 728 flow [2023-11-26 11:47:25,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 304 transitions, 723 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:25,821 INFO L231 Difference]: Finished difference. Result has 310 places, 302 transitions, 695 flow [2023-11-26 11:47:25,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=695, PETRI_PLACES=310, PETRI_TRANSITIONS=302} [2023-11-26 11:47:25,823 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -25 predicate places. [2023-11-26 11:47:25,823 INFO L495 AbstractCegarLoop]: Abstraction has has 310 places, 302 transitions, 695 flow [2023-11-26 11:47:25,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 348.6666666666667) internal successors, (1046), 3 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:25,824 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:25,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:25,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 11:47:25,824 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:25,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:25,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1390684273, now seen corresponding path program 1 times [2023-11-26 11:47:25,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:25,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069656600] [2023-11-26 11:47:25,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:25,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:26,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:26,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:26,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069656600] [2023-11-26 11:47:26,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069656600] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:26,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:26,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:26,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872088046] [2023-11-26 11:47:26,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:26,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:26,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:26,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:26,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:47:27,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 369 [2023-11-26 11:47:27,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 302 transitions, 695 flow. Second operand has 6 states, 6 states have (on average 340.6666666666667) internal successors, (2044), 6 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:27,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:27,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 369 [2023-11-26 11:47:27,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:27,680 INFO L124 PetriNetUnfolderBase]: 151/1921 cut-off events. [2023-11-26 11:47:27,681 INFO L125 PetriNetUnfolderBase]: For 141/150 co-relation queries the response was YES. [2023-11-26 11:47:27,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2390 conditions, 1921 events. 151/1921 cut-off events. For 141/150 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 13736 event pairs, 37 based on Foata normal form. 0/1782 useless extension candidates. Maximal degree in co-relation 2342. Up to 142 conditions per place. [2023-11-26 11:47:27,707 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 25 selfloop transitions, 5 changer transitions 0/310 dead transitions. [2023-11-26 11:47:27,707 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 310 transitions, 779 flow [2023-11-26 11:47:27,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:47:27,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:47:27,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2063 transitions. [2023-11-26 11:47:27,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9317976513098465 [2023-11-26 11:47:27,716 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2063 transitions. [2023-11-26 11:47:27,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2063 transitions. [2023-11-26 11:47:27,718 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:27,718 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2063 transitions. [2023-11-26 11:47:27,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 343.8333333333333) internal successors, (2063), 6 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:27,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:27,731 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:27,731 INFO L175 Difference]: Start difference. First operand has 310 places, 302 transitions, 695 flow. Second operand 6 states and 2063 transitions. [2023-11-26 11:47:27,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 310 transitions, 779 flow [2023-11-26 11:47:27,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 310 transitions, 775 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:27,741 INFO L231 Difference]: Finished difference. Result has 313 places, 302 transitions, 705 flow [2023-11-26 11:47:27,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=705, PETRI_PLACES=313, PETRI_TRANSITIONS=302} [2023-11-26 11:47:27,742 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -22 predicate places. [2023-11-26 11:47:27,742 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 302 transitions, 705 flow [2023-11-26 11:47:27,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 340.6666666666667) internal successors, (2044), 6 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:27,744 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:27,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:27,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 11:47:27,744 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting thread3Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:27,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:27,745 INFO L85 PathProgramCache]: Analyzing trace with hash 44559061, now seen corresponding path program 1 times [2023-11-26 11:47:27,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:27,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252427590] [2023-11-26 11:47:27,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:27,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:28,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:28,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:28,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252427590] [2023-11-26 11:47:28,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252427590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:28,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:28,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:28,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426070824] [2023-11-26 11:47:28,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:28,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:28,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:28,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:28,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:47:29,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 369 [2023-11-26 11:47:29,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 302 transitions, 705 flow. Second operand has 6 states, 6 states have (on average 340.8333333333333) internal successors, (2045), 6 states have internal predecessors, (2045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:29,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:29,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 369 [2023-11-26 11:47:29,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:29,631 INFO L124 PetriNetUnfolderBase]: 241/2210 cut-off events. [2023-11-26 11:47:29,631 INFO L125 PetriNetUnfolderBase]: For 175/200 co-relation queries the response was YES. [2023-11-26 11:47:29,648 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2760 conditions, 2210 events. 241/2210 cut-off events. For 175/200 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 17576 event pairs, 51 based on Foata normal form. 8/2059 useless extension candidates. Maximal degree in co-relation 2711. Up to 205 conditions per place. [2023-11-26 11:47:29,659 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 23 selfloop transitions, 5 changer transitions 0/310 dead transitions. [2023-11-26 11:47:29,659 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 310 transitions, 785 flow [2023-11-26 11:47:29,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:47:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:47:29,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2063 transitions. [2023-11-26 11:47:29,667 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9317976513098465 [2023-11-26 11:47:29,668 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2063 transitions. [2023-11-26 11:47:29,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2063 transitions. [2023-11-26 11:47:29,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:29,670 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2063 transitions. [2023-11-26 11:47:29,676 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 343.8333333333333) internal successors, (2063), 6 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:29,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:29,684 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:29,684 INFO L175 Difference]: Start difference. First operand has 313 places, 302 transitions, 705 flow. Second operand 6 states and 2063 transitions. [2023-11-26 11:47:29,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 310 transitions, 785 flow [2023-11-26 11:47:29,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 310 transitions, 777 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:47:29,694 INFO L231 Difference]: Finished difference. Result has 314 places, 302 transitions, 711 flow [2023-11-26 11:47:29,695 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=711, PETRI_PLACES=314, PETRI_TRANSITIONS=302} [2023-11-26 11:47:29,695 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -21 predicate places. [2023-11-26 11:47:29,696 INFO L495 AbstractCegarLoop]: Abstraction has has 314 places, 302 transitions, 711 flow [2023-11-26 11:47:29,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 340.8333333333333) internal successors, (2045), 6 states have internal predecessors, (2045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:29,697 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:29,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:29,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 11:47:29,698 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:29,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:29,698 INFO L85 PathProgramCache]: Analyzing trace with hash -837075027, now seen corresponding path program 1 times [2023-11-26 11:47:29,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:29,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119101750] [2023-11-26 11:47:29,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:29,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:29,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:29,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:29,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119101750] [2023-11-26 11:47:29,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119101750] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:47:29,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668471504] [2023-11-26 11:47:29,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:29,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:47:29,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:29,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:47:30,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:47:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:30,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:47:30,143 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:47:30,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:30,434 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:47:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:30,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668471504] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:47:30,829 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:47:30,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-11-26 11:47:30,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366540528] [2023-11-26 11:47:30,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:47:30,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-11-26 11:47:30,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:30,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-11-26 11:47:30,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2023-11-26 11:47:31,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 335 out of 369 [2023-11-26 11:47:31,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 302 transitions, 711 flow. Second operand has 19 states, 19 states have (on average 336.89473684210526) internal successors, (6401), 19 states have internal predecessors, (6401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:31,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:31,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 335 of 369 [2023-11-26 11:47:31,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:32,703 INFO L124 PetriNetUnfolderBase]: 147/2289 cut-off events. [2023-11-26 11:47:32,703 INFO L125 PetriNetUnfolderBase]: For 100/148 co-relation queries the response was YES. [2023-11-26 11:47:32,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2928 conditions, 2289 events. 147/2289 cut-off events. For 100/148 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 16689 event pairs, 40 based on Foata normal form. 15/2167 useless extension candidates. Maximal degree in co-relation 2877. Up to 114 conditions per place. [2023-11-26 11:47:32,747 INFO L140 encePairwiseOnDemand]: 352/369 looper letters, 26 selfloop transitions, 27 changer transitions 0/324 dead transitions. [2023-11-26 11:47:32,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 324 transitions, 883 flow [2023-11-26 11:47:32,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-26 11:47:32,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2023-11-26 11:47:32,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 5410 transitions. [2023-11-26 11:47:32,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9163279132791328 [2023-11-26 11:47:32,765 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 5410 transitions. [2023-11-26 11:47:32,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 5410 transitions. [2023-11-26 11:47:32,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:32,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 5410 transitions. [2023-11-26 11:47:32,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 338.125) internal successors, (5410), 16 states have internal predecessors, (5410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:32,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 369.0) internal successors, (6273), 17 states have internal predecessors, (6273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:32,799 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 369.0) internal successors, (6273), 17 states have internal predecessors, (6273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:32,800 INFO L175 Difference]: Start difference. First operand has 314 places, 302 transitions, 711 flow. Second operand 16 states and 5410 transitions. [2023-11-26 11:47:32,800 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 324 transitions, 883 flow [2023-11-26 11:47:32,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 324 transitions, 875 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:47:32,810 INFO L231 Difference]: Finished difference. Result has 333 places, 313 transitions, 842 flow [2023-11-26 11:47:32,811 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=703, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=842, PETRI_PLACES=333, PETRI_TRANSITIONS=313} [2023-11-26 11:47:32,812 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -2 predicate places. [2023-11-26 11:47:32,812 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 313 transitions, 842 flow [2023-11-26 11:47:32,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 336.89473684210526) internal successors, (6401), 19 states have internal predecessors, (6401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:32,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:32,815 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:32,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:47:33,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:47:33,028 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:33,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:33,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1841775113, now seen corresponding path program 1 times [2023-11-26 11:47:33,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:33,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542045727] [2023-11-26 11:47:33,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:33,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:33,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:33,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:33,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542045727] [2023-11-26 11:47:33,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542045727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:33,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:33,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:33,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651229961] [2023-11-26 11:47:33,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:33,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:33,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:33,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:33,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:47:34,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 369 [2023-11-26 11:47:34,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 313 transitions, 842 flow. Second operand has 6 states, 6 states have (on average 340.6666666666667) internal successors, (2044), 6 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:34,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:34,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 369 [2023-11-26 11:47:34,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:35,216 INFO L124 PetriNetUnfolderBase]: 198/2691 cut-off events. [2023-11-26 11:47:35,216 INFO L125 PetriNetUnfolderBase]: For 285/294 co-relation queries the response was YES. [2023-11-26 11:47:35,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3482 conditions, 2691 events. 198/2691 cut-off events. For 285/294 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 21394 event pairs, 51 based on Foata normal form. 0/2532 useless extension candidates. Maximal degree in co-relation 3421. Up to 196 conditions per place. [2023-11-26 11:47:35,256 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 25 selfloop transitions, 5 changer transitions 0/320 dead transitions. [2023-11-26 11:47:35,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 320 transitions, 924 flow [2023-11-26 11:47:35,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:47:35,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:47:35,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2063 transitions. [2023-11-26 11:47:35,262 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9317976513098465 [2023-11-26 11:47:35,262 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2063 transitions. [2023-11-26 11:47:35,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2063 transitions. [2023-11-26 11:47:35,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:35,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2063 transitions. [2023-11-26 11:47:35,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 343.8333333333333) internal successors, (2063), 6 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:35,272 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:35,273 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:35,273 INFO L175 Difference]: Start difference. First operand has 333 places, 313 transitions, 842 flow. Second operand 6 states and 2063 transitions. [2023-11-26 11:47:35,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 320 transitions, 924 flow [2023-11-26 11:47:35,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 335 places, 320 transitions, 907 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-11-26 11:47:35,284 INFO L231 Difference]: Finished difference. Result has 335 places, 312 transitions, 833 flow [2023-11-26 11:47:35,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=823, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=833, PETRI_PLACES=335, PETRI_TRANSITIONS=312} [2023-11-26 11:47:35,286 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, 0 predicate places. [2023-11-26 11:47:35,286 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 312 transitions, 833 flow [2023-11-26 11:47:35,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 340.6666666666667) internal successors, (2044), 6 states have internal predecessors, (2044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:35,287 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:35,287 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:35,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 11:47:35,288 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:35,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:35,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1618213345, now seen corresponding path program 1 times [2023-11-26 11:47:35,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:35,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056930211] [2023-11-26 11:47:35,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:35,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:35,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:35,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:35,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056930211] [2023-11-26 11:47:35,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056930211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:35,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:35,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:35,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026662236] [2023-11-26 11:47:35,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:35,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:35,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:35,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:35,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:47:36,419 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 369 [2023-11-26 11:47:36,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 312 transitions, 833 flow. Second operand has 6 states, 6 states have (on average 341.8333333333333) internal successors, (2051), 6 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:36,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:36,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 369 [2023-11-26 11:47:36,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:36,747 INFO L124 PetriNetUnfolderBase]: 67/1841 cut-off events. [2023-11-26 11:47:36,747 INFO L125 PetriNetUnfolderBase]: For 91/117 co-relation queries the response was YES. [2023-11-26 11:47:36,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2290 conditions, 1841 events. 67/1841 cut-off events. For 91/117 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 12075 event pairs, 1 based on Foata normal form. 12/1767 useless extension candidates. Maximal degree in co-relation 2227. Up to 52 conditions per place. [2023-11-26 11:47:36,765 INFO L140 encePairwiseOnDemand]: 364/369 looper letters, 12 selfloop transitions, 4 changer transitions 0/311 dead transitions. [2023-11-26 11:47:36,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 311 transitions, 863 flow [2023-11-26 11:47:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:47:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:47:36,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2057 transitions. [2023-11-26 11:47:36,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9290876242095755 [2023-11-26 11:47:36,769 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2057 transitions. [2023-11-26 11:47:36,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2057 transitions. [2023-11-26 11:47:36,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:36,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2057 transitions. [2023-11-26 11:47:36,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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) [2023-11-26 11:47:36,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:36,777 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:36,777 INFO L175 Difference]: Start difference. First operand has 335 places, 312 transitions, 833 flow. Second operand 6 states and 2057 transitions. [2023-11-26 11:47:36,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 311 transitions, 863 flow [2023-11-26 11:47:36,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 311 transitions, 851 flow, removed 1 selfloop flow, removed 5 redundant places. [2023-11-26 11:47:36,786 INFO L231 Difference]: Finished difference. Result has 334 places, 311 transitions, 827 flow [2023-11-26 11:47:36,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=819, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=827, PETRI_PLACES=334, PETRI_TRANSITIONS=311} [2023-11-26 11:47:36,787 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -1 predicate places. [2023-11-26 11:47:36,787 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 311 transitions, 827 flow [2023-11-26 11:47:36,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 341.8333333333333) internal successors, (2051), 6 states have internal predecessors, (2051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:36,788 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:36,788 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:36,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-26 11:47:36,789 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting thread3Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:36,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:36,789 INFO L85 PathProgramCache]: Analyzing trace with hash 225793469, now seen corresponding path program 1 times [2023-11-26 11:47:36,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:36,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172787253] [2023-11-26 11:47:36,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:36,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:37,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:37,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:37,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172787253] [2023-11-26 11:47:37,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172787253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:37,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:37,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:37,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011425767] [2023-11-26 11:47:37,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:37,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:37,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:37,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:37,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:47:37,855 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 369 [2023-11-26 11:47:37,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 311 transitions, 827 flow. Second operand has 6 states, 6 states have (on average 340.8333333333333) internal successors, (2045), 6 states have internal predecessors, (2045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:37,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:37,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 369 [2023-11-26 11:47:37,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:38,416 INFO L124 PetriNetUnfolderBase]: 328/3062 cut-off events. [2023-11-26 11:47:38,416 INFO L125 PetriNetUnfolderBase]: For 359/394 co-relation queries the response was YES. [2023-11-26 11:47:38,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4025 conditions, 3062 events. 328/3062 cut-off events. For 359/394 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 26779 event pairs, 74 based on Foata normal form. 12/2897 useless extension candidates. Maximal degree in co-relation 3963. Up to 291 conditions per place. [2023-11-26 11:47:38,448 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 23 selfloop transitions, 5 changer transitions 0/318 dead transitions. [2023-11-26 11:47:38,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 318 transitions, 905 flow [2023-11-26 11:47:38,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:47:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:47:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2063 transitions. [2023-11-26 11:47:38,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9317976513098465 [2023-11-26 11:47:38,451 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2063 transitions. [2023-11-26 11:47:38,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2063 transitions. [2023-11-26 11:47:38,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:38,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2063 transitions. [2023-11-26 11:47:38,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 343.8333333333333) internal successors, (2063), 6 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:38,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:38,460 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:38,460 INFO L175 Difference]: Start difference. First operand has 334 places, 311 transitions, 827 flow. Second operand 6 states and 2063 transitions. [2023-11-26 11:47:38,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 318 transitions, 905 flow [2023-11-26 11:47:38,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 318 transitions, 898 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:47:38,470 INFO L231 Difference]: Finished difference. Result has 334 places, 310 transitions, 828 flow [2023-11-26 11:47:38,470 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=818, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=828, PETRI_PLACES=334, PETRI_TRANSITIONS=310} [2023-11-26 11:47:38,471 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -1 predicate places. [2023-11-26 11:47:38,471 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 310 transitions, 828 flow [2023-11-26 11:47:38,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 340.8333333333333) internal successors, (2045), 6 states have internal predecessors, (2045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:38,472 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:38,472 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:38,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-26 11:47:38,473 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:38,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:38,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2072606058, now seen corresponding path program 2 times [2023-11-26 11:47:38,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:38,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501076923] [2023-11-26 11:47:38,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:38,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:38,974 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-26 11:47:38,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:38,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501076923] [2023-11-26 11:47:38,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501076923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:38,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:38,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:38,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167050996] [2023-11-26 11:47:38,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:38,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:38,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:38,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:38,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:47:39,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 369 [2023-11-26 11:47:39,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 310 transitions, 828 flow. Second operand has 6 states, 6 states have (on average 341.1666666666667) internal successors, (2047), 6 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:39,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:39,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 369 [2023-11-26 11:47:39,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:40,142 INFO L124 PetriNetUnfolderBase]: 146/2363 cut-off events. [2023-11-26 11:47:40,143 INFO L125 PetriNetUnfolderBase]: For 263/308 co-relation queries the response was YES. [2023-11-26 11:47:40,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3164 conditions, 2363 events. 146/2363 cut-off events. For 263/308 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 17299 event pairs, 39 based on Foata normal form. 4/2269 useless extension candidates. Maximal degree in co-relation 3102. Up to 175 conditions per place. [2023-11-26 11:47:40,181 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 27 selfloop transitions, 5 changer transitions 0/318 dead transitions. [2023-11-26 11:47:40,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 318 transitions, 916 flow [2023-11-26 11:47:40,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:47:40,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:47:40,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2063 transitions. [2023-11-26 11:47:40,185 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9317976513098465 [2023-11-26 11:47:40,185 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2063 transitions. [2023-11-26 11:47:40,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2063 transitions. [2023-11-26 11:47:40,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:40,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2063 transitions. [2023-11-26 11:47:40,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 343.8333333333333) internal successors, (2063), 6 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:40,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:40,195 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:40,195 INFO L175 Difference]: Start difference. First operand has 334 places, 310 transitions, 828 flow. Second operand 6 states and 2063 transitions. [2023-11-26 11:47:40,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 318 transitions, 916 flow [2023-11-26 11:47:40,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 318 transitions, 906 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 11:47:40,205 INFO L231 Difference]: Finished difference. Result has 334 places, 310 transitions, 832 flow [2023-11-26 11:47:40,206 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=816, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=832, PETRI_PLACES=334, PETRI_TRANSITIONS=310} [2023-11-26 11:47:40,207 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -1 predicate places. [2023-11-26 11:47:40,207 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 310 transitions, 832 flow [2023-11-26 11:47:40,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 341.1666666666667) internal successors, (2047), 6 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:40,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:40,208 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:40,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-26 11:47:40,208 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:40,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:40,209 INFO L85 PathProgramCache]: Analyzing trace with hash -618759560, now seen corresponding path program 1 times [2023-11-26 11:47:40,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:40,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408969324] [2023-11-26 11:47:40,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:40,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:40,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:40,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:47:40,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:40,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408969324] [2023-11-26 11:47:40,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408969324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:40,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:40,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:40,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566479250] [2023-11-26 11:47:40,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:40,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:40,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:40,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:40,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:47:41,367 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 340 out of 369 [2023-11-26 11:47:41,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 310 transitions, 832 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) [2023-11-26 11:47:41,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:41,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 340 of 369 [2023-11-26 11:47:41,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:41,954 INFO L124 PetriNetUnfolderBase]: 67/1874 cut-off events. [2023-11-26 11:47:41,954 INFO L125 PetriNetUnfolderBase]: For 92/103 co-relation queries the response was YES. [2023-11-26 11:47:41,993 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2357 conditions, 1874 events. 67/1874 cut-off events. For 92/103 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 12285 event pairs, 1 based on Foata normal form. 0/1815 useless extension candidates. Maximal degree in co-relation 2293. Up to 60 conditions per place. [2023-11-26 11:47:41,997 INFO L140 encePairwiseOnDemand]: 364/369 looper letters, 12 selfloop transitions, 4 changer transitions 13/309 dead transitions. [2023-11-26 11:47:41,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 309 transitions, 862 flow [2023-11-26 11:47:41,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:47:41,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:47:42,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2057 transitions. [2023-11-26 11:47:42,002 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9290876242095755 [2023-11-26 11:47:42,002 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2057 transitions. [2023-11-26 11:47:42,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2057 transitions. [2023-11-26 11:47:42,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:42,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2057 transitions. [2023-11-26 11:47:42,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 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) [2023-11-26 11:47:42,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:42,016 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:42,016 INFO L175 Difference]: Start difference. First operand has 334 places, 310 transitions, 832 flow. Second operand 6 states and 2057 transitions. [2023-11-26 11:47:42,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 309 transitions, 862 flow [2023-11-26 11:47:42,021 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 309 transitions, 854 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 11:47:42,027 INFO L231 Difference]: Finished difference. Result has 334 places, 296 transitions, 740 flow [2023-11-26 11:47:42,029 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=822, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=309, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=740, PETRI_PLACES=334, PETRI_TRANSITIONS=296} [2023-11-26 11:47:42,030 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -1 predicate places. [2023-11-26 11:47:42,030 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 296 transitions, 740 flow [2023-11-26 11:47:42,030 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) [2023-11-26 11:47:42,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:47:42,031 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:42,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-26 11:47:42,032 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err6ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-26 11:47:42,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:42,033 INFO L85 PathProgramCache]: Analyzing trace with hash 2066192338, now seen corresponding path program 1 times [2023-11-26 11:47:42,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:42,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402183947] [2023-11-26 11:47:42,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:42,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:42,567 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-26 11:47:42,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:42,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402183947] [2023-11-26 11:47:42,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402183947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:42,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:42,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:47:42,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587334536] [2023-11-26 11:47:42,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:42,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:47:42,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:42,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:47:42,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:47:43,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 369 [2023-11-26 11:47:43,174 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 296 transitions, 740 flow. Second operand has 6 states, 6 states have (on average 341.1666666666667) internal successors, (2047), 6 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:43,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:47:43,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 369 [2023-11-26 11:47:43,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:47:43,476 INFO L124 PetriNetUnfolderBase]: 96/1324 cut-off events. [2023-11-26 11:47:43,476 INFO L125 PetriNetUnfolderBase]: For 57/77 co-relation queries the response was YES. [2023-11-26 11:47:43,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1771 conditions, 1324 events. 96/1324 cut-off events. For 57/77 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8063 event pairs, 21 based on Foata normal form. 4/1284 useless extension candidates. Maximal degree in co-relation 1750. Up to 88 conditions per place. [2023-11-26 11:47:43,489 INFO L140 encePairwiseOnDemand]: 363/369 looper letters, 0 selfloop transitions, 0 changer transitions 303/303 dead transitions. [2023-11-26 11:47:43,489 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 303 transitions, 818 flow [2023-11-26 11:47:43,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:47:43,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 11:47:43,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2063 transitions. [2023-11-26 11:47:43,493 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9317976513098465 [2023-11-26 11:47:43,493 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2063 transitions. [2023-11-26 11:47:43,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2063 transitions. [2023-11-26 11:47:43,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:47:43,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2063 transitions. [2023-11-26 11:47:43,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 343.8333333333333) internal successors, (2063), 6 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:43,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:43,500 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 369.0) internal successors, (2583), 7 states have internal predecessors, (2583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:43,500 INFO L175 Difference]: Start difference. First operand has 334 places, 296 transitions, 740 flow. Second operand 6 states and 2063 transitions. [2023-11-26 11:47:43,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 303 transitions, 818 flow [2023-11-26 11:47:43,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 303 transitions, 769 flow, removed 4 selfloop flow, removed 17 redundant places. [2023-11-26 11:47:43,508 INFO L231 Difference]: Finished difference. Result has 313 places, 0 transitions, 0 flow [2023-11-26 11:47:43,508 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=369, PETRI_DIFFERENCE_MINUEND_FLOW=689, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=313, PETRI_TRANSITIONS=0} [2023-11-26 11:47:43,509 INFO L281 CegarLoopForPetriNet]: 335 programPoint places, -22 predicate places. [2023-11-26 11:47:43,509 INFO L495 AbstractCegarLoop]: Abstraction has has 313 places, 0 transitions, 0 flow [2023-11-26 11:47:43,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 341.1666666666667) internal successors, (2047), 6 states have internal predecessors, (2047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:47:43,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (63 of 64 remaining) [2023-11-26 11:47:43,513 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2023-11-26 11:47:43,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2023-11-26 11:47:43,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2023-11-26 11:47:43,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2023-11-26 11:47:43,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2023-11-26 11:47:43,514 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (57 of 64 remaining) [2023-11-26 11:47:43,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2023-11-26 11:47:43,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2023-11-26 11:47:43,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2023-11-26 11:47:43,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2023-11-26 11:47:43,515 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2023-11-26 11:47:43,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2023-11-26 11:47:43,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2023-11-26 11:47:43,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2023-11-26 11:47:43,516 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2023-11-26 11:47:43,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2023-11-26 11:47:43,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2023-11-26 11:47:43,519 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2023-11-26 11:47:43,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2023-11-26 11:47:43,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2023-11-26 11:47:43,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2023-11-26 11:47:43,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2023-11-26 11:47:43,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2023-11-26 11:47:43,520 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2023-11-26 11:47:43,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2023-11-26 11:47:43,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2023-11-26 11:47:43,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2023-11-26 11:47:43,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2023-11-26 11:47:43,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2023-11-26 11:47:43,521 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2023-11-26 11:47:43,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2023-11-26 11:47:43,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2023-11-26 11:47:43,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (30 of 64 remaining) [2023-11-26 11:47:43,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (29 of 64 remaining) [2023-11-26 11:47:43,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2023-11-26 11:47:43,522 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2023-11-26 11:47:43,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2023-11-26 11:47:43,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2023-11-26 11:47:43,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 64 remaining) [2023-11-26 11:47:43,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 64 remaining) [2023-11-26 11:47:43,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 64 remaining) [2023-11-26 11:47:43,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2023-11-26 11:47:43,523 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2023-11-26 11:47:43,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2023-11-26 11:47:43,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2023-11-26 11:47:43,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2023-11-26 11:47:43,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2023-11-26 11:47:43,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2023-11-26 11:47:43,524 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2023-11-26 11:47:43,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2023-11-26 11:47:43,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2023-11-26 11:47:43,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2023-11-26 11:47:43,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2023-11-26 11:47:43,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2023-11-26 11:47:43,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2023-11-26 11:47:43,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2023-11-26 11:47:43,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2023-11-26 11:47:43,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2023-11-26 11:47:43,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2023-11-26 11:47:43,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err7ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2023-11-26 11:47:43,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2023-11-26 11:47:43,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2023-11-26 11:47:43,527 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err6ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2023-11-26 11:47:43,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-26 11:47:43,527 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:43,536 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:47:43,536 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:47:43,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:47:43 BasicIcfg [2023-11-26 11:47:43,544 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:47:43,550 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:47:43,550 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:47:43,550 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:47:43,551 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:03" (3/4) ... [2023-11-26 11:47:43,553 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 11:47:43,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 11:47:43,558 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 11:47:43,558 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2023-11-26 11:47:43,566 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2023-11-26 11:47:43,567 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 11:47:43,567 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 11:47:43,568 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 11:47:43,690 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 11:47:43,690 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 11:47:43,691 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:47:43,691 INFO L158 Benchmark]: Toolchain (without parser) took 41744.31ms. Allocated memory was 161.5MB in the beginning and 4.9GB in the end (delta: 4.7GB). Free memory was 115.6MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2023-11-26 11:47:43,692 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 161.5MB. Free memory is still 106.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:47:43,692 INFO L158 Benchmark]: CACSL2BoogieTranslator took 481.42ms. Allocated memory is still 161.5MB. Free memory was 115.1MB in the beginning and 102.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 11:47:43,692 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.27ms. Allocated memory is still 161.5MB. Free memory was 102.1MB in the beginning and 100.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:47:43,693 INFO L158 Benchmark]: Boogie Preprocessor took 46.68ms. Allocated memory is still 161.5MB. Free memory was 100.0MB in the beginning and 97.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:47:43,693 INFO L158 Benchmark]: RCFGBuilder took 1097.90ms. Allocated memory was 161.5MB in the beginning and 232.8MB in the end (delta: 71.3MB). Free memory was 97.4MB in the beginning and 199.9MB in the end (delta: -102.4MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2023-11-26 11:47:43,694 INFO L158 Benchmark]: TraceAbstraction took 39907.45ms. Allocated memory was 232.8MB in the beginning and 4.9GB in the end (delta: 4.7GB). Free memory was 199.2MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. [2023-11-26 11:47:43,694 INFO L158 Benchmark]: Witness Printer took 141.09ms. Allocated memory is still 4.9GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 11:47:43,696 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 161.5MB. Free memory is still 106.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 481.42ms. Allocated memory is still 161.5MB. Free memory was 115.1MB in the beginning and 102.1MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.27ms. Allocated memory is still 161.5MB. Free memory was 102.1MB in the beginning and 100.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.68ms. Allocated memory is still 161.5MB. Free memory was 100.0MB in the beginning and 97.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1097.90ms. Allocated memory was 161.5MB in the beginning and 232.8MB in the end (delta: 71.3MB). Free memory was 97.4MB in the beginning and 199.9MB in the end (delta: -102.4MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * TraceAbstraction took 39907.45ms. Allocated memory was 232.8MB in the beginning and 4.9GB in the end (delta: 4.7GB). Free memory was 199.2MB in the beginning and 2.4GB in the end (delta: -2.2GB). Peak memory consumption was 2.4GB. Max. memory is 16.1GB. * Witness Printer took 141.09ms. Allocated memory is still 4.9GB. Free memory was 2.4GB in the beginning and 2.4GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 103]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 503 locations, 64 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 39.7s, OverallIterations: 28, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 29.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3620 SdHoareTripleChecker+Valid, 8.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2022 mSDsluCounter, 1847 SdHoareTripleChecker+Invalid, 6.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1615 mSDsCounter, 1273 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6659 IncrementalHoareTripleChecker+Invalid, 7932 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1273 mSolverCounterUnsat, 232 mSDtfsCounter, 6659 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 382 GetRequests, 286 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=842occurred in iteration=22, InterpolantAutomatonStates: 136, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.9s InterpolantComputationTime, 3030 NumberOfCodeBlocks, 3030 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 3129 ConstructedInterpolants, 0 QuantifiedInterpolants, 5283 SizeOfPredicates, 7 NumberOfNonLiveVariables, 296 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 30 InterpolantComputations, 27 PerfectInterpolantSequences, 34/37 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 39 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 11:47:43,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ced388e2-8d5b-4207-904d-b3f33cb3f149/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0