./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.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_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/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_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/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_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/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 b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:45:41,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:45:41,487 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:45:41,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:45:41,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:45:41,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:45:41,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:45:41,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:45:41,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:45:41,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:45:41,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:45:41,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:45:41,540 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:45:41,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:45:41,542 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:45:41,542 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:45:41,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:45:41,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:45:41,544 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:45:41,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:45:41,544 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:45:41,545 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:45:41,545 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:45:41,546 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:45:41,546 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:45:41,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:45:41,547 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:45:41,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:45:41,548 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:45:41,549 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:45:41,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:41,550 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:45:41,551 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:45:41,551 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:45:41,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:45:41,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:45:41,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:45:41,552 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:45:41,552 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:45:41,552 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:45:41,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:45:41,553 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_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a [2023-11-26 10:45:41,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:45:41,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:45:41,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:45:41,930 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:45:41,931 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:45:41,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2023-11-26 10:45:44,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:45:45,226 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:45:45,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2023-11-26 10:45:45,235 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/data/86d7331c1/3a393f4457f3472aa83d91f4c599b8b8/FLAG73ae47720 [2023-11-26 10:45:45,250 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/data/86d7331c1/3a393f4457f3472aa83d91f4c599b8b8 [2023-11-26 10:45:45,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:45:45,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:45:45,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:45,256 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:45:45,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:45:45,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,263 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321f2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45, skipping insertion in model container [2023-11-26 10:45:45,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,289 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:45:45,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:45,525 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:45:45,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:45:45,581 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:45:45,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45 WrapperNode [2023-11-26 10:45:45,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:45:45,584 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:45,584 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:45:45,584 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:45:45,592 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,604 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,678 INFO L138 Inliner]: procedures = 24, calls = 36, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 299 [2023-11-26 10:45:45,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:45:45,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:45:45,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:45:45,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:45:45,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,754 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,758 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,761 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,766 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,782 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:45:45,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:45:45,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:45:45,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:45:45,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (1/1) ... [2023-11-26 10:45:45,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:45:45,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:45,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:45:45,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:45:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:45:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-26 10:45:45,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-26 10:45:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-26 10:45:45,882 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-26 10:45:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:45:45,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:45:45,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:45:45,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 10:45:45,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:45:45,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:45:45,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:45:45,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:45:45,886 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 10:45:46,026 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:45:46,028 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:45:46,741 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:45:46,772 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:45:46,772 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-26 10:45:46,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:46 BoogieIcfgContainer [2023-11-26 10:45:46,774 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:45:46,777 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:45:46,777 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:45:46,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:45:46,792 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:45:45" (1/3) ... [2023-11-26 10:45:46,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61910b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:45:46, skipping insertion in model container [2023-11-26 10:45:46,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:45:45" (2/3) ... [2023-11-26 10:45:46,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61910b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:45:46, skipping insertion in model container [2023-11-26 10:45:46,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:46" (3/3) ... [2023-11-26 10:45:46,794 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2023-11-26 10:45:46,811 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:45:46,822 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:45:46,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-26 10:45:46,823 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:45:46,991 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-26 10:45:47,046 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 354 places, 366 transitions, 746 flow [2023-11-26 10:45:47,241 INFO L124 PetriNetUnfolderBase]: 19/364 cut-off events. [2023-11-26 10:45:47,241 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-26 10:45:47,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 373 conditions, 364 events. 19/364 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 664 event pairs, 0 based on Foata normal form. 0/313 useless extension candidates. Maximal degree in co-relation 236. Up to 3 conditions per place. [2023-11-26 10:45:47,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 354 places, 366 transitions, 746 flow [2023-11-26 10:45:47,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 332 places, 343 transitions, 698 flow [2023-11-26 10:45:47,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:45:47,291 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;@2ded95d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:45:47,292 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2023-11-26 10:45:47,328 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:45:47,328 INFO L124 PetriNetUnfolderBase]: 3/59 cut-off events. [2023-11-26 10:45:47,329 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:45:47,329 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:47,330 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] [2023-11-26 10:45:47,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:47,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:47,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1951804173, now seen corresponding path program 1 times [2023-11-26 10:45:47,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:47,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643768373] [2023-11-26 10:45:47,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:47,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:48,273 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 10:45:48,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:48,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643768373] [2023-11-26 10:45:48,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643768373] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:48,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:48,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:45:48,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524199940] [2023-11-26 10:45:48,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:48,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:45:48,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:48,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:45:48,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:45:48,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 366 [2023-11-26 10:45:48,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 343 transitions, 698 flow. Second operand has 6 states, 6 states have (on average 283.5) internal successors, (1701), 6 states have internal predecessors, (1701), 0 states have call successors, (0), 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 10:45:48,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:48,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 366 [2023-11-26 10:45:48,853 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:51,638 INFO L124 PetriNetUnfolderBase]: 3073/11417 cut-off events. [2023-11-26 10:45:51,639 INFO L125 PetriNetUnfolderBase]: For 169/176 co-relation queries the response was YES. [2023-11-26 10:45:51,682 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15902 conditions, 11417 events. 3073/11417 cut-off events. For 169/176 co-relation queries the response was YES. Maximal size of possible extension queue 314. Compared 115836 event pairs, 2528 based on Foata normal form. 486/10055 useless extension candidates. Maximal degree in co-relation 15023. Up to 4388 conditions per place. [2023-11-26 10:45:51,751 INFO L140 encePairwiseOnDemand]: 344/366 looper letters, 60 selfloop transitions, 10 changer transitions 4/331 dead transitions. [2023-11-26 10:45:51,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 331 transitions, 814 flow [2023-11-26 10:45:51,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:45:51,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:45:51,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1774 transitions. [2023-11-26 10:45:51,773 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.807832422586521 [2023-11-26 10:45:51,774 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1774 transitions. [2023-11-26 10:45:51,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1774 transitions. [2023-11-26 10:45:51,779 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:51,781 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1774 transitions. [2023-11-26 10:45:51,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 295.6666666666667) internal successors, (1774), 6 states have internal predecessors, (1774), 0 states have call successors, (0), 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 10:45:51,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:45:51,801 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:45:51,803 INFO L175 Difference]: Start difference. First operand has 332 places, 343 transitions, 698 flow. Second operand 6 states and 1774 transitions. [2023-11-26 10:45:51,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 331 transitions, 814 flow [2023-11-26 10:45:51,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 331 transitions, 806 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:45:51,820 INFO L231 Difference]: Finished difference. Result has 331 places, 327 transitions, 678 flow [2023-11-26 10:45:51,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=678, PETRI_PLACES=331, PETRI_TRANSITIONS=327} [2023-11-26 10:45:51,826 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -1 predicate places. [2023-11-26 10:45:51,827 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 327 transitions, 678 flow [2023-11-26 10:45:51,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 283.5) internal successors, (1701), 6 states have internal predecessors, (1701), 0 states have call successors, (0), 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 10:45:51,828 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:51,829 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] [2023-11-26 10:45:51,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:45:51,829 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:51,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:51,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1445971493, now seen corresponding path program 1 times [2023-11-26 10:45:51,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:51,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441668902] [2023-11-26 10:45:51,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:51,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:51,939 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 10:45:51,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:51,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441668902] [2023-11-26 10:45:51,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441668902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:51,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:51,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:51,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822400790] [2023-11-26 10:45:51,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:51,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:51,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:51,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:51,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:51,978 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 366 [2023-11-26 10:45:51,981 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 327 transitions, 678 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 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 10:45:51,981 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:51,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 366 [2023-11-26 10:45:51,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:52,098 INFO L124 PetriNetUnfolderBase]: 22/534 cut-off events. [2023-11-26 10:45:52,098 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-26 10:45:52,102 INFO L83 FinitePrefix]: Finished finitePrefix Result has 580 conditions, 534 events. 22/534 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1883 event pairs, 8 based on Foata normal form. 0/460 useless extension candidates. Maximal degree in co-relation 547. Up to 28 conditions per place. [2023-11-26 10:45:52,106 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 11 selfloop transitions, 2 changer transitions 0/326 dead transitions. [2023-11-26 10:45:52,106 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 326 transitions, 702 flow [2023-11-26 10:45:52,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:52,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:52,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1031 transitions. [2023-11-26 10:45:52,111 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9389799635701275 [2023-11-26 10:45:52,111 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1031 transitions. [2023-11-26 10:45:52,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1031 transitions. [2023-11-26 10:45:52,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:52,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1031 transitions. [2023-11-26 10:45:52,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:52,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:52,123 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:52,124 INFO L175 Difference]: Start difference. First operand has 331 places, 327 transitions, 678 flow. Second operand 3 states and 1031 transitions. [2023-11-26 10:45:52,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 326 transitions, 702 flow [2023-11-26 10:45:52,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 326 transitions, 682 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:45:52,136 INFO L231 Difference]: Finished difference. Result has 323 places, 326 transitions, 660 flow [2023-11-26 10:45:52,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=321, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=323, PETRI_TRANSITIONS=326} [2023-11-26 10:45:52,138 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -9 predicate places. [2023-11-26 10:45:52,138 INFO L495 AbstractCegarLoop]: Abstraction has has 323 places, 326 transitions, 660 flow [2023-11-26 10:45:52,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 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 10:45:52,139 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:52,140 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] [2023-11-26 10:45:52,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:45:52,144 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:52,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:52,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1128172056, now seen corresponding path program 1 times [2023-11-26 10:45:52,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:52,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477102880] [2023-11-26 10:45:52,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:52,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:52,240 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 10:45:52,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:52,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477102880] [2023-11-26 10:45:52,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477102880] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:52,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:52,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:52,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942520805] [2023-11-26 10:45:52,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:52,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:52,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:52,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:52,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:52,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 339 out of 366 [2023-11-26 10:45:52,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 326 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 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 10:45:52,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:52,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 339 of 366 [2023-11-26 10:45:52,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:52,401 INFO L124 PetriNetUnfolderBase]: 22/533 cut-off events. [2023-11-26 10:45:52,401 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-26 10:45:52,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 533 events. 22/533 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1740 event pairs, 8 based on Foata normal form. 0/459 useless extension candidates. Maximal degree in co-relation 502. Up to 28 conditions per place. [2023-11-26 10:45:52,409 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 11 selfloop transitions, 2 changer transitions 0/325 dead transitions. [2023-11-26 10:45:52,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 325 transitions, 684 flow [2023-11-26 10:45:52,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:52,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:52,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1031 transitions. [2023-11-26 10:45:52,417 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9389799635701275 [2023-11-26 10:45:52,417 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1031 transitions. [2023-11-26 10:45:52,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1031 transitions. [2023-11-26 10:45:52,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:52,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1031 transitions. [2023-11-26 10:45:52,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 343.6666666666667) internal successors, (1031), 3 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:45:52,427 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:52,429 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:52,429 INFO L175 Difference]: Start difference. First operand has 323 places, 326 transitions, 660 flow. Second operand 3 states and 1031 transitions. [2023-11-26 10:45:52,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 325 transitions, 684 flow [2023-11-26 10:45:52,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 322 places, 325 transitions, 680 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:52,440 INFO L231 Difference]: Finished difference. Result has 322 places, 325 transitions, 658 flow [2023-11-26 10:45:52,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=658, PETRI_PLACES=322, PETRI_TRANSITIONS=325} [2023-11-26 10:45:52,442 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -10 predicate places. [2023-11-26 10:45:52,442 INFO L495 AbstractCegarLoop]: Abstraction has has 322 places, 325 transitions, 658 flow [2023-11-26 10:45:52,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 340.3333333333333) internal successors, (1021), 3 states have internal predecessors, (1021), 0 states have call successors, (0), 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 10:45:52,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:52,444 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] [2023-11-26 10:45:52,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:45:52,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:52,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:52,446 INFO L85 PathProgramCache]: Analyzing trace with hash -746148377, now seen corresponding path program 1 times [2023-11-26 10:45:52,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:52,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939125261] [2023-11-26 10:45:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:52,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:52,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:52,512 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 10:45:52,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:52,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939125261] [2023-11-26 10:45:52,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939125261] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:52,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:52,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:52,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860458294] [2023-11-26 10:45:52,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:52,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:52,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:52,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:52,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:52,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 366 [2023-11-26 10:45:52,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 322 places, 325 transitions, 658 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 10:45:52,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:52,548 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 366 [2023-11-26 10:45:52,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:52,650 INFO L124 PetriNetUnfolderBase]: 17/492 cut-off events. [2023-11-26 10:45:52,650 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:45:52,654 INFO L83 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 492 events. 17/492 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1607 event pairs, 3 based on Foata normal form. 0/423 useless extension candidates. Maximal degree in co-relation 401. Up to 16 conditions per place. [2023-11-26 10:45:52,657 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 9 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2023-11-26 10:45:52,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 324 transitions, 678 flow [2023-11-26 10:45:52,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:52,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:52,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1035 transitions. [2023-11-26 10:45:52,664 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9426229508196722 [2023-11-26 10:45:52,664 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1035 transitions. [2023-11-26 10:45:52,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1035 transitions. [2023-11-26 10:45:52,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:52,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1035 transitions. [2023-11-26 10:45:52,670 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 0 states have call successors, (0), 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 10:45:52,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:52,676 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:52,676 INFO L175 Difference]: Start difference. First operand has 322 places, 325 transitions, 658 flow. Second operand 3 states and 1035 transitions. [2023-11-26 10:45:52,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 324 transitions, 678 flow [2023-11-26 10:45:52,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 324 transitions, 674 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:52,686 INFO L231 Difference]: Finished difference. Result has 321 places, 324 transitions, 656 flow [2023-11-26 10:45:52,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=652, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=324, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=656, PETRI_PLACES=321, PETRI_TRANSITIONS=324} [2023-11-26 10:45:52,688 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -11 predicate places. [2023-11-26 10:45:52,689 INFO L495 AbstractCegarLoop]: Abstraction has has 321 places, 324 transitions, 656 flow [2023-11-26 10:45:52,690 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 10:45:52,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:52,690 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] [2023-11-26 10:45:52,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:45:52,691 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:52,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:52,692 INFO L85 PathProgramCache]: Analyzing trace with hash 10243285, now seen corresponding path program 1 times [2023-11-26 10:45:52,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:52,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617975646] [2023-11-26 10:45:52,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:52,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:52,759 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 10:45:52,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:52,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617975646] [2023-11-26 10:45:52,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617975646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:52,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:52,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:52,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682112157] [2023-11-26 10:45:52,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:52,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:52,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:52,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:52,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:52,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 366 [2023-11-26 10:45:52,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 324 transitions, 656 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 10:45:52,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:52,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 366 [2023-11-26 10:45:52,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:52,888 INFO L124 PetriNetUnfolderBase]: 17/495 cut-off events. [2023-11-26 10:45:52,888 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:45:52,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 495 events. 17/495 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1440 event pairs, 3 based on Foata normal form. 0/426 useless extension candidates. Maximal degree in co-relation 396. Up to 16 conditions per place. [2023-11-26 10:45:52,894 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 9 selfloop transitions, 2 changer transitions 0/323 dead transitions. [2023-11-26 10:45:52,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 323 transitions, 676 flow [2023-11-26 10:45:52,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:52,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:52,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1035 transitions. [2023-11-26 10:45:52,900 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9426229508196722 [2023-11-26 10:45:52,900 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1035 transitions. [2023-11-26 10:45:52,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1035 transitions. [2023-11-26 10:45:52,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:52,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1035 transitions. [2023-11-26 10:45:52,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 345.0) internal successors, (1035), 3 states have internal predecessors, (1035), 0 states have call successors, (0), 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 10:45:52,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:52,911 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:52,911 INFO L175 Difference]: Start difference. First operand has 321 places, 324 transitions, 656 flow. Second operand 3 states and 1035 transitions. [2023-11-26 10:45:52,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 323 transitions, 676 flow [2023-11-26 10:45:52,914 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 323 transitions, 672 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:52,919 INFO L231 Difference]: Finished difference. Result has 320 places, 323 transitions, 654 flow [2023-11-26 10:45:52,920 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=318, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=654, PETRI_PLACES=320, PETRI_TRANSITIONS=323} [2023-11-26 10:45:52,921 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -12 predicate places. [2023-11-26 10:45:52,921 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 323 transitions, 654 flow [2023-11-26 10:45:52,922 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 10:45:52,923 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:52,923 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] [2023-11-26 10:45:52,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:45:52,923 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:52,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:52,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1092067150, now seen corresponding path program 1 times [2023-11-26 10:45:52,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:52,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653802606] [2023-11-26 10:45:52,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:52,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:53,011 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 10:45:53,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:53,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653802606] [2023-11-26 10:45:53,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653802606] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:53,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:53,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:53,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937451513] [2023-11-26 10:45:53,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:53,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:53,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:53,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:53,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:53,027 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 366 [2023-11-26 10:45:53,030 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 323 transitions, 654 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 10:45:53,030 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:53,030 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 366 [2023-11-26 10:45:53,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:53,144 INFO L124 PetriNetUnfolderBase]: 31/715 cut-off events. [2023-11-26 10:45:53,144 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-26 10:45:53,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 752 conditions, 715 events. 31/715 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3148 event pairs, 5 based on Foata normal form. 0/611 useless extension candidates. Maximal degree in co-relation 620. Up to 25 conditions per place. [2023-11-26 10:45:53,155 INFO L140 encePairwiseOnDemand]: 362/366 looper letters, 10 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2023-11-26 10:45:53,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 324 transitions, 681 flow [2023-11-26 10:45:53,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:53,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:53,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1043 transitions. [2023-11-26 10:45:53,160 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9499089253187614 [2023-11-26 10:45:53,160 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1043 transitions. [2023-11-26 10:45:53,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1043 transitions. [2023-11-26 10:45:53,161 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:53,161 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1043 transitions. [2023-11-26 10:45:53,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 10:45:53,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:53,168 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:53,169 INFO L175 Difference]: Start difference. First operand has 320 places, 323 transitions, 654 flow. Second operand 3 states and 1043 transitions. [2023-11-26 10:45:53,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 324 transitions, 681 flow [2023-11-26 10:45:53,171 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 324 transitions, 677 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:45:53,177 INFO L231 Difference]: Finished difference. Result has 319 places, 323 transitions, 660 flow [2023-11-26 10:45:53,178 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=646, PETRI_DIFFERENCE_MINUEND_PLACES=316, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=660, PETRI_PLACES=319, PETRI_TRANSITIONS=323} [2023-11-26 10:45:53,181 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -13 predicate places. [2023-11-26 10:45:53,181 INFO L495 AbstractCegarLoop]: Abstraction has has 319 places, 323 transitions, 660 flow [2023-11-26 10:45:53,182 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 10:45:53,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:53,182 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] [2023-11-26 10:45:53,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:45:53,182 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:53,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:53,183 INFO L85 PathProgramCache]: Analyzing trace with hash -886178973, now seen corresponding path program 1 times [2023-11-26 10:45:53,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:53,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903533012] [2023-11-26 10:45:53,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:53,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:53,244 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 10:45:53,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:53,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903533012] [2023-11-26 10:45:53,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903533012] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:53,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:53,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:53,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528699821] [2023-11-26 10:45:53,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:53,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:53,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:53,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:53,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:53,263 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 343 out of 366 [2023-11-26 10:45:53,265 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 319 places, 323 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 344.6666666666667) internal successors, (1034), 3 states have internal predecessors, (1034), 0 states have call successors, (0), 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 10:45:53,265 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:53,265 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 343 of 366 [2023-11-26 10:45:53,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:53,372 INFO L124 PetriNetUnfolderBase]: 32/694 cut-off events. [2023-11-26 10:45:53,372 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 10:45:53,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 739 conditions, 694 events. 32/694 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3364 event pairs, 3 based on Foata normal form. 0/599 useless extension candidates. Maximal degree in co-relation 524. Up to 26 conditions per place. [2023-11-26 10:45:53,378 INFO L140 encePairwiseOnDemand]: 362/366 looper letters, 10 selfloop transitions, 2 changer transitions 0/324 dead transitions. [2023-11-26 10:45:53,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 319 places, 324 transitions, 687 flow [2023-11-26 10:45:53,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:53,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:53,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1043 transitions. [2023-11-26 10:45:53,383 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9499089253187614 [2023-11-26 10:45:53,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1043 transitions. [2023-11-26 10:45:53,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1043 transitions. [2023-11-26 10:45:53,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:53,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1043 transitions. [2023-11-26 10:45:53,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 10:45:53,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:53,391 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:53,392 INFO L175 Difference]: Start difference. First operand has 319 places, 323 transitions, 660 flow. Second operand 3 states and 1043 transitions. [2023-11-26 10:45:53,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 319 places, 324 transitions, 687 flow [2023-11-26 10:45:53,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 319 places, 324 transitions, 687 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:45:53,400 INFO L231 Difference]: Finished difference. Result has 320 places, 323 transitions, 670 flow [2023-11-26 10:45:53,401 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=319, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=670, PETRI_PLACES=320, PETRI_TRANSITIONS=323} [2023-11-26 10:45:53,402 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -12 predicate places. [2023-11-26 10:45:53,402 INFO L495 AbstractCegarLoop]: Abstraction has has 320 places, 323 transitions, 670 flow [2023-11-26 10:45:53,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 344.6666666666667) internal successors, (1034), 3 states have internal predecessors, (1034), 0 states have call successors, (0), 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 10:45:53,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:53,403 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 10:45:53,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:45:53,404 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:53,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:53,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1119093160, now seen corresponding path program 1 times [2023-11-26 10:45:53,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:53,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931866214] [2023-11-26 10:45:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:53,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:53,568 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 10:45:53,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:53,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931866214] [2023-11-26 10:45:53,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931866214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:53,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:53,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:45:53,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158810637] [2023-11-26 10:45:53,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:53,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:45:53,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:53,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:45:53,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:45:53,753 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 366 [2023-11-26 10:45:53,755 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 323 transitions, 670 flow. Second operand has 5 states, 5 states have (on average 335.6) internal successors, (1678), 5 states have internal predecessors, (1678), 0 states have call successors, (0), 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 10:45:53,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:53,756 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 366 [2023-11-26 10:45:53,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:53,930 INFO L124 PetriNetUnfolderBase]: 16/496 cut-off events. [2023-11-26 10:45:53,930 INFO L125 PetriNetUnfolderBase]: For 3/4 co-relation queries the response was YES. [2023-11-26 10:45:53,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 543 conditions, 496 events. 16/496 cut-off events. For 3/4 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1595 event pairs, 0 based on Foata normal form. 2/444 useless extension candidates. Maximal degree in co-relation 323. Up to 10 conditions per place. [2023-11-26 10:45:53,935 INFO L140 encePairwiseOnDemand]: 352/366 looper letters, 12 selfloop transitions, 12 changer transitions 0/325 dead transitions. [2023-11-26 10:45:53,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 325 transitions, 722 flow [2023-11-26 10:45:53,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 10:45:53,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 10:45:53,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1686 transitions. [2023-11-26 10:45:53,941 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.921311475409836 [2023-11-26 10:45:53,941 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1686 transitions. [2023-11-26 10:45:53,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1686 transitions. [2023-11-26 10:45:53,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:53,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1686 transitions. [2023-11-26 10:45:53,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 337.2) internal successors, (1686), 5 states have internal predecessors, (1686), 0 states have call successors, (0), 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 10:45:53,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 366.0) internal successors, (2196), 6 states have internal predecessors, (2196), 0 states have call successors, (0), 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 10:45:53,955 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 366.0) internal successors, (2196), 6 states have internal predecessors, (2196), 0 states have call successors, (0), 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 10:45:53,955 INFO L175 Difference]: Start difference. First operand has 320 places, 323 transitions, 670 flow. Second operand 5 states and 1686 transitions. [2023-11-26 10:45:53,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 325 transitions, 722 flow [2023-11-26 10:45:53,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 324 places, 325 transitions, 722 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:45:53,963 INFO L231 Difference]: Finished difference. Result has 325 places, 325 transitions, 710 flow [2023-11-26 10:45:53,964 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=710, PETRI_PLACES=325, PETRI_TRANSITIONS=325} [2023-11-26 10:45:53,968 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -7 predicate places. [2023-11-26 10:45:53,968 INFO L495 AbstractCegarLoop]: Abstraction has has 325 places, 325 transitions, 710 flow [2023-11-26 10:45:53,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 335.6) internal successors, (1678), 5 states have internal predecessors, (1678), 0 states have call successors, (0), 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 10:45:53,969 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:53,969 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] [2023-11-26 10:45:53,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:45:53,970 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:53,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:53,970 INFO L85 PathProgramCache]: Analyzing trace with hash -698977606, now seen corresponding path program 1 times [2023-11-26 10:45:53,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:53,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929111941] [2023-11-26 10:45:53,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:53,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:45:54,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:54,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929111941] [2023-11-26 10:45:54,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929111941] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:45:54,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2041626564] [2023-11-26 10:45:54,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:54,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:54,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:54,201 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:45:54,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:45:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:54,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:45:54,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:54,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:45:54,623 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:45:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:45:54,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2041626564] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:45:54,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:45:54,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2023-11-26 10:45:54,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172084618] [2023-11-26 10:45:54,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:45:54,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-26 10:45:54,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:54,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-26 10:45:54,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-11-26 10:45:55,179 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-26 10:45:55,184 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 325 transitions, 710 flow. Second operand has 15 states, 15 states have (on average 328.73333333333335) internal successors, (4931), 15 states have internal predecessors, (4931), 0 states have call successors, (0), 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 10:45:55,184 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:55,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-26 10:45:55,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:55,513 INFO L124 PetriNetUnfolderBase]: 16/530 cut-off events. [2023-11-26 10:45:55,514 INFO L125 PetriNetUnfolderBase]: For 13/14 co-relation queries the response was YES. [2023-11-26 10:45:55,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 530 events. 16/530 cut-off events. For 13/14 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1541 event pairs, 0 based on Foata normal form. 4/480 useless extension candidates. Maximal degree in co-relation 397. Up to 10 conditions per place. [2023-11-26 10:45:55,519 INFO L140 encePairwiseOnDemand]: 346/366 looper letters, 20 selfloop transitions, 26 changer transitions 0/341 dead transitions. [2023-11-26 10:45:55,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 341 transitions, 838 flow [2023-11-26 10:45:55,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 10:45:55,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-26 10:45:55,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3636 transitions. [2023-11-26 10:45:55,532 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9031296572280179 [2023-11-26 10:45:55,533 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3636 transitions. [2023-11-26 10:45:55,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3636 transitions. [2023-11-26 10:45:55,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:55,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3636 transitions. [2023-11-26 10:45:55,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 330.54545454545456) internal successors, (3636), 11 states have internal predecessors, (3636), 0 states have call successors, (0), 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 10:45:55,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 366.0) internal successors, (4392), 12 states have internal predecessors, (4392), 0 states have call successors, (0), 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 10:45:55,560 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 366.0) internal successors, (4392), 12 states have internal predecessors, (4392), 0 states have call successors, (0), 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 10:45:55,560 INFO L175 Difference]: Start difference. First operand has 325 places, 325 transitions, 710 flow. Second operand 11 states and 3636 transitions. [2023-11-26 10:45:55,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 341 transitions, 838 flow [2023-11-26 10:45:55,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 341 transitions, 818 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-26 10:45:55,570 INFO L231 Difference]: Finished difference. Result has 335 places, 337 transitions, 810 flow [2023-11-26 10:45:55,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=690, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=810, PETRI_PLACES=335, PETRI_TRANSITIONS=337} [2023-11-26 10:45:55,572 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 3 predicate places. [2023-11-26 10:45:55,572 INFO L495 AbstractCegarLoop]: Abstraction has has 335 places, 337 transitions, 810 flow [2023-11-26 10:45:55,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 328.73333333333335) internal successors, (4931), 15 states have internal predecessors, (4931), 0 states have call successors, (0), 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 10:45:55,575 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:55,575 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:45:55,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:55,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-26 10:45:55,783 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:55,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:55,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1416605946, now seen corresponding path program 2 times [2023-11-26 10:45:55,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:55,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431839518] [2023-11-26 10:45:55,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:55,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:56,315 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-26 10:45:56,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:56,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431839518] [2023-11-26 10:45:56,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431839518] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:45:56,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422610942] [2023-11-26 10:45:56,318 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:45:56,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:56,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:56,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:45:56,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:45:56,490 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 10:45:56,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:45:56,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 10:45:56,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:56,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-26 10:45:56,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-26 10:45:56,899 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:45:56,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-26 10:45:56,949 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 10:45:56,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-26 10:45:56,986 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-26 10:45:56,986 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:45:56,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422610942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:56,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:45:56,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 16 [2023-11-26 10:45:56,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841035259] [2023-11-26 10:45:56,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:56,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 10:45:56,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:56,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 10:45:56,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-11-26 10:45:57,727 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 366 [2023-11-26 10:45:57,729 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 337 transitions, 810 flow. Second operand has 7 states, 7 states have (on average 334.42857142857144) internal successors, (2341), 7 states have internal predecessors, (2341), 0 states have call successors, (0), 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 10:45:57,729 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:57,729 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 366 [2023-11-26 10:45:57,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:57,847 INFO L124 PetriNetUnfolderBase]: 16/529 cut-off events. [2023-11-26 10:45:57,848 INFO L125 PetriNetUnfolderBase]: For 15/26 co-relation queries the response was YES. [2023-11-26 10:45:57,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 652 conditions, 529 events. 16/529 cut-off events. For 15/26 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1534 event pairs, 0 based on Foata normal form. 8/484 useless extension candidates. Maximal degree in co-relation 399. Up to 27 conditions per place. [2023-11-26 10:45:57,853 INFO L140 encePairwiseOnDemand]: 360/366 looper letters, 14 selfloop transitions, 5 changer transitions 0/336 dead transitions. [2023-11-26 10:45:57,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 336 transitions, 846 flow [2023-11-26 10:45:57,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:45:57,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-26 10:45:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2344 transitions. [2023-11-26 10:45:57,862 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9149102263856362 [2023-11-26 10:45:57,862 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2344 transitions. [2023-11-26 10:45:57,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2344 transitions. [2023-11-26 10:45:57,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:57,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2344 transitions. [2023-11-26 10:45:57,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 334.85714285714283) internal successors, (2344), 7 states have internal predecessors, (2344), 0 states have call successors, (0), 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 10:45:57,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 366.0) internal successors, (2928), 8 states have internal predecessors, (2928), 0 states have call successors, (0), 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 10:45:57,878 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 366.0) internal successors, (2928), 8 states have internal predecessors, (2928), 0 states have call successors, (0), 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 10:45:57,878 INFO L175 Difference]: Start difference. First operand has 335 places, 337 transitions, 810 flow. Second operand 7 states and 2344 transitions. [2023-11-26 10:45:57,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 336 transitions, 846 flow [2023-11-26 10:45:57,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 336 transitions, 822 flow, removed 4 selfloop flow, removed 3 redundant places. [2023-11-26 10:45:57,891 INFO L231 Difference]: Finished difference. Result has 337 places, 336 transitions, 794 flow [2023-11-26 10:45:57,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=794, PETRI_PLACES=337, PETRI_TRANSITIONS=336} [2023-11-26 10:45:57,893 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 5 predicate places. [2023-11-26 10:45:57,894 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 336 transitions, 794 flow [2023-11-26 10:45:57,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 334.42857142857144) internal successors, (2341), 7 states have internal predecessors, (2341), 0 states have call successors, (0), 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 10:45:57,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:57,895 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:45:57,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:45:58,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 10:45:58,103 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:58,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:58,103 INFO L85 PathProgramCache]: Analyzing trace with hash -357707272, now seen corresponding path program 1 times [2023-11-26 10:45:58,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:58,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193722674] [2023-11-26 10:45:58,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:58,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-11-26 10:45:58,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:58,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193722674] [2023-11-26 10:45:58,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193722674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:45:58,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:45:58,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:45:58,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188749698] [2023-11-26 10:45:58,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:45:58,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:45:58,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:58,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:45:58,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:45:58,241 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 366 [2023-11-26 10:45:58,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 336 transitions, 794 flow. Second operand has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 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 10:45:58,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:45:58,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 366 [2023-11-26 10:45:58,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:45:58,491 INFO L124 PetriNetUnfolderBase]: 80/1152 cut-off events. [2023-11-26 10:45:58,491 INFO L125 PetriNetUnfolderBase]: For 26/27 co-relation queries the response was YES. [2023-11-26 10:45:58,499 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1347 conditions, 1152 events. 80/1152 cut-off events. For 26/27 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5894 event pairs, 12 based on Foata normal form. 0/1005 useless extension candidates. Maximal degree in co-relation 1159. Up to 94 conditions per place. [2023-11-26 10:45:58,503 INFO L140 encePairwiseOnDemand]: 360/366 looper letters, 16 selfloop transitions, 2 changer transitions 0/337 dead transitions. [2023-11-26 10:45:58,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 337 transitions, 835 flow [2023-11-26 10:45:58,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:45:58,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:45:58,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1033 transitions. [2023-11-26 10:45:58,507 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9408014571948998 [2023-11-26 10:45:58,507 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1033 transitions. [2023-11-26 10:45:58,507 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1033 transitions. [2023-11-26 10:45:58,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:45:58,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1033 transitions. [2023-11-26 10:45:58,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 10:45:58,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:58,513 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:45:58,513 INFO L175 Difference]: Start difference. First operand has 337 places, 336 transitions, 794 flow. Second operand 3 states and 1033 transitions. [2023-11-26 10:45:58,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 337 transitions, 835 flow [2023-11-26 10:45:58,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 337 transitions, 826 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:45:58,523 INFO L231 Difference]: Finished difference. Result has 331 places, 334 transitions, 791 flow [2023-11-26 10:45:58,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=777, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=791, PETRI_PLACES=331, PETRI_TRANSITIONS=334} [2023-11-26 10:45:58,524 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, -1 predicate places. [2023-11-26 10:45:58,524 INFO L495 AbstractCegarLoop]: Abstraction has has 331 places, 334 transitions, 791 flow [2023-11-26 10:45:58,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.3333333333333) internal successors, (1015), 3 states have internal predecessors, (1015), 0 states have call successors, (0), 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 10:45:58,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:45:58,526 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:45:58,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:45:58,526 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:45:58,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:45:58,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1586718532, now seen corresponding path program 1 times [2023-11-26 10:45:58,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:45:58,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043861838] [2023-11-26 10:45:58,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:58,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:45:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-26 10:45:59,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:45:59,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043861838] [2023-11-26 10:45:59,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043861838] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:45:59,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615699744] [2023-11-26 10:45:59,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:45:59,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:45:59,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:45:59,002 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:45:59,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:45:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:45:59,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 10:45:59,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:45:59,537 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-26 10:45:59,538 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:45:59,749 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-26 10:45:59,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615699744] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:45:59,749 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:45:59,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2023-11-26 10:45:59,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152566032] [2023-11-26 10:45:59,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:45:59,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-26 10:45:59,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:45:59,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-26 10:45:59,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2023-11-26 10:46:00,473 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-26 10:46:00,482 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 334 transitions, 791 flow. Second operand has 22 states, 22 states have (on average 328.54545454545456) internal successors, (7228), 22 states have internal predecessors, (7228), 0 states have call successors, (0), 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 10:46:00,482 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:00,482 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-26 10:46:00,482 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:01,031 INFO L124 PetriNetUnfolderBase]: 25/722 cut-off events. [2023-11-26 10:46:01,031 INFO L125 PetriNetUnfolderBase]: For 44/47 co-relation queries the response was YES. [2023-11-26 10:46:01,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 909 conditions, 722 events. 25/722 cut-off events. For 44/47 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2369 event pairs, 0 based on Foata normal form. 4/658 useless extension candidates. Maximal degree in co-relation 553. Up to 17 conditions per place. [2023-11-26 10:46:01,039 INFO L140 encePairwiseOnDemand]: 346/366 looper letters, 24 selfloop transitions, 38 changer transitions 0/354 dead transitions. [2023-11-26 10:46:01,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 347 places, 354 transitions, 1011 flow [2023-11-26 10:46:01,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-26 10:46:01,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2023-11-26 10:46:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 5608 transitions. [2023-11-26 10:46:01,058 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9013179042108647 [2023-11-26 10:46:01,058 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 5608 transitions. [2023-11-26 10:46:01,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 5608 transitions. [2023-11-26 10:46:01,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:01,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 5608 transitions. [2023-11-26 10:46:01,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 329.88235294117646) internal successors, (5608), 17 states have internal predecessors, (5608), 0 states have call successors, (0), 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 10:46:01,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 366.0) internal successors, (6588), 18 states have internal predecessors, (6588), 0 states have call successors, (0), 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 10:46:01,095 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 366.0) internal successors, (6588), 18 states have internal predecessors, (6588), 0 states have call successors, (0), 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 10:46:01,095 INFO L175 Difference]: Start difference. First operand has 331 places, 334 transitions, 791 flow. Second operand 17 states and 5608 transitions. [2023-11-26 10:46:01,095 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 347 places, 354 transitions, 1011 flow [2023-11-26 10:46:01,100 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 354 transitions, 1011 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:46:01,107 INFO L231 Difference]: Finished difference. Result has 350 places, 348 transitions, 975 flow [2023-11-26 10:46:01,107 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=975, PETRI_PLACES=350, PETRI_TRANSITIONS=348} [2023-11-26 10:46:01,109 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 18 predicate places. [2023-11-26 10:46:01,109 INFO L495 AbstractCegarLoop]: Abstraction has has 350 places, 348 transitions, 975 flow [2023-11-26 10:46:01,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 328.54545454545456) internal successors, (7228), 22 states have internal predecessors, (7228), 0 states have call successors, (0), 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 10:46:01,111 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:01,112 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:01,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 10:46:01,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 10:46:01,319 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:46:01,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:01,319 INFO L85 PathProgramCache]: Analyzing trace with hash -92199172, now seen corresponding path program 2 times [2023-11-26 10:46:01,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:01,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091584458] [2023-11-26 10:46:01,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:01,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:02,653 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 10:46:02,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:02,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091584458] [2023-11-26 10:46:02,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091584458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:02,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:02,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:02,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697850597] [2023-11-26 10:46:02,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:02,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:02,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:02,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:02,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:03,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-26 10:46:03,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 348 transitions, 975 flow. Second operand has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 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 10:46:03,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:03,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-26 10:46:03,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:03,608 INFO L124 PetriNetUnfolderBase]: 38/843 cut-off events. [2023-11-26 10:46:03,608 INFO L125 PetriNetUnfolderBase]: For 64/65 co-relation queries the response was YES. [2023-11-26 10:46:03,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1149 conditions, 843 events. 38/843 cut-off events. For 64/65 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 3316 event pairs, 2 based on Foata normal form. 0/764 useless extension candidates. Maximal degree in co-relation 745. Up to 60 conditions per place. [2023-11-26 10:46:03,617 INFO L140 encePairwiseOnDemand]: 359/366 looper letters, 27 selfloop transitions, 5 changer transitions 0/352 dead transitions. [2023-11-26 10:46:03,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 352 transitions, 1053 flow [2023-11-26 10:46:03,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:03,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:46:03,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1990 transitions. [2023-11-26 10:46:03,624 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9061930783242259 [2023-11-26 10:46:03,624 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1990 transitions. [2023-11-26 10:46:03,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1990 transitions. [2023-11-26 10:46:03,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:03,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1990 transitions. [2023-11-26 10:46:03,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 331.6666666666667) internal successors, (1990), 6 states have internal predecessors, (1990), 0 states have call successors, (0), 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 10:46:03,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:46:03,637 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:46:03,638 INFO L175 Difference]: Start difference. First operand has 350 places, 348 transitions, 975 flow. Second operand 6 states and 1990 transitions. [2023-11-26 10:46:03,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 352 transitions, 1053 flow [2023-11-26 10:46:03,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 345 places, 352 transitions, 1001 flow, removed 8 selfloop flow, removed 8 redundant places. [2023-11-26 10:46:03,648 INFO L231 Difference]: Finished difference. Result has 345 places, 346 transitions, 929 flow [2023-11-26 10:46:03,649 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=919, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=929, PETRI_PLACES=345, PETRI_TRANSITIONS=346} [2023-11-26 10:46:03,650 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 13 predicate places. [2023-11-26 10:46:03,650 INFO L495 AbstractCegarLoop]: Abstraction has has 345 places, 346 transitions, 929 flow [2023-11-26 10:46:03,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 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 10:46:03,651 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:03,652 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:03,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 10:46:03,652 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:46:03,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:03,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1204695002, now seen corresponding path program 1 times [2023-11-26 10:46:03,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:03,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29046445] [2023-11-26 10:46:03,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:03,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:03,812 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 10:46:03,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:03,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29046445] [2023-11-26 10:46:03,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29046445] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:03,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:03,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:03,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280554626] [2023-11-26 10:46:03,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:03,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:03,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:03,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:03,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:03,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 337 out of 366 [2023-11-26 10:46:03,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 346 transitions, 929 flow. Second operand has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 0 states have call successors, (0), 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 10:46:03,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:03,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 337 of 366 [2023-11-26 10:46:03,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:04,167 INFO L124 PetriNetUnfolderBase]: 90/1367 cut-off events. [2023-11-26 10:46:04,168 INFO L125 PetriNetUnfolderBase]: For 85/86 co-relation queries the response was YES. [2023-11-26 10:46:04,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1703 conditions, 1367 events. 90/1367 cut-off events. For 85/86 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7294 event pairs, 16 based on Foata normal form. 0/1240 useless extension candidates. Maximal degree in co-relation 1365. Up to 116 conditions per place. [2023-11-26 10:46:04,183 INFO L140 encePairwiseOnDemand]: 360/366 looper letters, 16 selfloop transitions, 2 changer transitions 0/347 dead transitions. [2023-11-26 10:46:04,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 347 transitions, 970 flow [2023-11-26 10:46:04,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:04,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:04,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1033 transitions. [2023-11-26 10:46:04,187 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9408014571948998 [2023-11-26 10:46:04,187 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1033 transitions. [2023-11-26 10:46:04,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1033 transitions. [2023-11-26 10:46:04,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:04,189 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1033 transitions. [2023-11-26 10:46:04,191 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 10:46:04,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:46:04,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:46:04,195 INFO L175 Difference]: Start difference. First operand has 345 places, 346 transitions, 929 flow. Second operand 3 states and 1033 transitions. [2023-11-26 10:46:04,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 347 transitions, 970 flow [2023-11-26 10:46:04,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 347 transitions, 960 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:46:04,206 INFO L231 Difference]: Finished difference. Result has 339 places, 344 transitions, 925 flow [2023-11-26 10:46:04,207 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=925, PETRI_PLACES=339, PETRI_TRANSITIONS=344} [2023-11-26 10:46:04,207 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 7 predicate places. [2023-11-26 10:46:04,208 INFO L495 AbstractCegarLoop]: Abstraction has has 339 places, 344 transitions, 925 flow [2023-11-26 10:46:04,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 338.6666666666667) internal successors, (1016), 3 states have internal predecessors, (1016), 0 states have call successors, (0), 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 10:46:04,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:04,209 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:04,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 10:46:04,210 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:46:04,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1884398530, now seen corresponding path program 1 times [2023-11-26 10:46:04,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:04,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598168217] [2023-11-26 10:46:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:04,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:05,412 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 10:46:05,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:05,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598168217] [2023-11-26 10:46:05,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598168217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:05,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:05,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:05,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388998657] [2023-11-26 10:46:05,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:05,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:05,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:05,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:05,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:06,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-26 10:46:06,158 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 344 transitions, 925 flow. Second operand has 6 states, 6 states have (on average 329.0) internal successors, (1974), 6 states have internal predecessors, (1974), 0 states have call successors, (0), 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 10:46:06,158 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:06,158 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-26 10:46:06,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:06,471 INFO L124 PetriNetUnfolderBase]: 61/895 cut-off events. [2023-11-26 10:46:06,471 INFO L125 PetriNetUnfolderBase]: For 94/96 co-relation queries the response was YES. [2023-11-26 10:46:06,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 895 events. 61/895 cut-off events. For 94/96 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4047 event pairs, 3 based on Foata normal form. 0/828 useless extension candidates. Maximal degree in co-relation 837. Up to 64 conditions per place. [2023-11-26 10:46:06,481 INFO L140 encePairwiseOnDemand]: 359/366 looper letters, 26 selfloop transitions, 5 changer transitions 0/347 dead transitions. [2023-11-26 10:46:06,481 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 347 transitions, 998 flow [2023-11-26 10:46:06,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:06,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:46:06,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1989 transitions. [2023-11-26 10:46:06,489 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9057377049180327 [2023-11-26 10:46:06,490 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1989 transitions. [2023-11-26 10:46:06,490 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1989 transitions. [2023-11-26 10:46:06,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:06,492 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1989 transitions. [2023-11-26 10:46:06,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 331.5) internal successors, (1989), 6 states have internal predecessors, (1989), 0 states have call successors, (0), 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 10:46:06,502 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:46:06,503 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:46:06,503 INFO L175 Difference]: Start difference. First operand has 339 places, 344 transitions, 925 flow. Second operand 6 states and 1989 transitions. [2023-11-26 10:46:06,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 347 transitions, 998 flow [2023-11-26 10:46:06,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 347 transitions, 998 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:46:06,516 INFO L231 Difference]: Finished difference. Result has 342 places, 342 transitions, 931 flow [2023-11-26 10:46:06,517 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=921, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=342, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=931, PETRI_PLACES=342, PETRI_TRANSITIONS=342} [2023-11-26 10:46:06,518 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 10 predicate places. [2023-11-26 10:46:06,518 INFO L495 AbstractCegarLoop]: Abstraction has has 342 places, 342 transitions, 931 flow [2023-11-26 10:46:06,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.0) internal successors, (1974), 6 states have internal predecessors, (1974), 0 states have call successors, (0), 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 10:46:06,520 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:06,520 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:06,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 10:46:06,521 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:46:06,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:06,521 INFO L85 PathProgramCache]: Analyzing trace with hash 467610402, now seen corresponding path program 1 times [2023-11-26 10:46:06,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:06,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129983371] [2023-11-26 10:46:06,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:06,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 10:46:07,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:07,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129983371] [2023-11-26 10:46:07,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129983371] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:07,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:07,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:07,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47517271] [2023-11-26 10:46:07,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:07,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:07,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:07,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:07,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:08,630 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-26 10:46:08,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 342 places, 342 transitions, 931 flow. Second operand has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 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 10:46:08,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:08,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-26 10:46:08,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:08,957 INFO L124 PetriNetUnfolderBase]: 41/935 cut-off events. [2023-11-26 10:46:08,957 INFO L125 PetriNetUnfolderBase]: For 73/75 co-relation queries the response was YES. [2023-11-26 10:46:08,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 935 events. 41/935 cut-off events. For 73/75 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4085 event pairs, 2 based on Foata normal form. 0/875 useless extension candidates. Maximal degree in co-relation 999. Up to 64 conditions per place. [2023-11-26 10:46:08,967 INFO L140 encePairwiseOnDemand]: 359/366 looper letters, 27 selfloop transitions, 5 changer transitions 0/346 dead transitions. [2023-11-26 10:46:08,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 346 transitions, 1009 flow [2023-11-26 10:46:08,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:08,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:46:08,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1990 transitions. [2023-11-26 10:46:08,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9061930783242259 [2023-11-26 10:46:08,975 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1990 transitions. [2023-11-26 10:46:08,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1990 transitions. [2023-11-26 10:46:08,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:08,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1990 transitions. [2023-11-26 10:46:08,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 331.6666666666667) internal successors, (1990), 6 states have internal predecessors, (1990), 0 states have call successors, (0), 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 10:46:08,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:46:08,987 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:46:08,988 INFO L175 Difference]: Start difference. First operand has 342 places, 342 transitions, 931 flow. Second operand 6 states and 1990 transitions. [2023-11-26 10:46:08,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 346 transitions, 1009 flow [2023-11-26 10:46:08,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 346 transitions, 999 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:46:08,998 INFO L231 Difference]: Finished difference. Result has 340 places, 340 transitions, 927 flow [2023-11-26 10:46:08,999 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=917, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=927, PETRI_PLACES=340, PETRI_TRANSITIONS=340} [2023-11-26 10:46:08,999 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 8 predicate places. [2023-11-26 10:46:08,999 INFO L495 AbstractCegarLoop]: Abstraction has has 340 places, 340 transitions, 927 flow [2023-11-26 10:46:09,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 328.8333333333333) internal successors, (1973), 6 states have internal predecessors, (1973), 0 states have call successors, (0), 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 10:46:09,001 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:09,001 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:09,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 10:46:09,002 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:46:09,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:09,002 INFO L85 PathProgramCache]: Analyzing trace with hash -5400604, now seen corresponding path program 1 times [2023-11-26 10:46:09,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:09,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929785029] [2023-11-26 10:46:09,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:09,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:10,450 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 10:46:10,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:10,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929785029] [2023-11-26 10:46:10,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929785029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:10,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:10,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:10,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408021948] [2023-11-26 10:46:10,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:10,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:10,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:10,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:10,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:11,281 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 326 out of 366 [2023-11-26 10:46:11,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 340 places, 340 transitions, 927 flow. Second operand has 6 states, 6 states have (on average 329.0) internal successors, (1974), 6 states have internal predecessors, (1974), 0 states have call successors, (0), 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 10:46:11,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:11,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 326 of 366 [2023-11-26 10:46:11,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:11,602 INFO L124 PetriNetUnfolderBase]: 68/976 cut-off events. [2023-11-26 10:46:11,602 INFO L125 PetriNetUnfolderBase]: For 107/110 co-relation queries the response was YES. [2023-11-26 10:46:11,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1328 conditions, 976 events. 68/976 cut-off events. For 107/110 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 4680 event pairs, 5 based on Foata normal form. 0/907 useless extension candidates. Maximal degree in co-relation 947. Up to 73 conditions per place. [2023-11-26 10:46:11,614 INFO L140 encePairwiseOnDemand]: 359/366 looper letters, 26 selfloop transitions, 5 changer transitions 0/343 dead transitions. [2023-11-26 10:46:11,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 343 transitions, 1000 flow [2023-11-26 10:46:11,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:11,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:46:11,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1989 transitions. [2023-11-26 10:46:11,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9057377049180327 [2023-11-26 10:46:11,622 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1989 transitions. [2023-11-26 10:46:11,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1989 transitions. [2023-11-26 10:46:11,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:11,626 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1989 transitions. [2023-11-26 10:46:11,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 331.5) internal successors, (1989), 6 states have internal predecessors, (1989), 0 states have call successors, (0), 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 10:46:11,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:46:11,641 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:46:11,642 INFO L175 Difference]: Start difference. First operand has 340 places, 340 transitions, 927 flow. Second operand 6 states and 1989 transitions. [2023-11-26 10:46:11,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 343 transitions, 1000 flow [2023-11-26 10:46:11,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 343 transitions, 990 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:46:11,653 INFO L231 Difference]: Finished difference. Result has 338 places, 338 transitions, 923 flow [2023-11-26 10:46:11,654 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=338, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=923, PETRI_PLACES=338, PETRI_TRANSITIONS=338} [2023-11-26 10:46:11,655 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 6 predicate places. [2023-11-26 10:46:11,655 INFO L495 AbstractCegarLoop]: Abstraction has has 338 places, 338 transitions, 923 flow [2023-11-26 10:46:11,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 329.0) internal successors, (1974), 6 states have internal predecessors, (1974), 0 states have call successors, (0), 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 10:46:11,656 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:11,657 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:11,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 10:46:11,657 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:46:11,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:11,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1022114800, now seen corresponding path program 1 times [2023-11-26 10:46:11,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:11,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828929852] [2023-11-26 10:46:11,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:11,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:11,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:12,876 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 10:46:12,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:12,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828929852] [2023-11-26 10:46:12,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828929852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:12,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:12,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:46:12,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236972554] [2023-11-26 10:46:12,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:12,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:46:12,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:12,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:46:12,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:46:13,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 366 [2023-11-26 10:46:13,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 338 transitions, 923 flow. Second operand has 6 states, 6 states have (on average 335.0) internal successors, (2010), 6 states have internal predecessors, (2010), 0 states have call successors, (0), 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 10:46:13,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:13,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 366 [2023-11-26 10:46:13,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:13,846 INFO L124 PetriNetUnfolderBase]: 29/777 cut-off events. [2023-11-26 10:46:13,846 INFO L125 PetriNetUnfolderBase]: For 63/77 co-relation queries the response was YES. [2023-11-26 10:46:13,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1049 conditions, 777 events. 29/777 cut-off events. For 63/77 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2800 event pairs, 0 based on Foata normal form. 8/749 useless extension candidates. Maximal degree in co-relation 825. Up to 50 conditions per place. [2023-11-26 10:46:13,854 INFO L140 encePairwiseOnDemand]: 361/366 looper letters, 15 selfloop transitions, 4 changer transitions 0/337 dead transitions. [2023-11-26 10:46:13,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 342 places, 337 transitions, 959 flow [2023-11-26 10:46:13,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:46:13,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:46:13,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2012 transitions. [2023-11-26 10:46:13,861 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9162112932604736 [2023-11-26 10:46:13,861 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2012 transitions. [2023-11-26 10:46:13,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2012 transitions. [2023-11-26 10:46:13,862 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:13,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2012 transitions. [2023-11-26 10:46:13,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 335.3333333333333) internal successors, (2012), 6 states have internal predecessors, (2012), 0 states have call successors, (0), 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 10:46:13,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:46:13,872 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 366.0) internal successors, (2562), 7 states have internal predecessors, (2562), 0 states have call successors, (0), 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 10:46:13,872 INFO L175 Difference]: Start difference. First operand has 338 places, 338 transitions, 923 flow. Second operand 6 states and 2012 transitions. [2023-11-26 10:46:13,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 342 places, 337 transitions, 959 flow [2023-11-26 10:46:13,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 337 transitions, 949 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 10:46:13,882 INFO L231 Difference]: Finished difference. Result has 337 places, 337 transitions, 919 flow [2023-11-26 10:46:13,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=911, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=337, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=919, PETRI_PLACES=337, PETRI_TRANSITIONS=337} [2023-11-26 10:46:13,884 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 5 predicate places. [2023-11-26 10:46:13,884 INFO L495 AbstractCegarLoop]: Abstraction has has 337 places, 337 transitions, 919 flow [2023-11-26 10:46:13,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 335.0) internal successors, (2010), 6 states have internal predecessors, (2010), 0 states have call successors, (0), 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 10:46:13,885 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:13,885 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:13,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 10:46:13,886 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:46:13,886 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:13,886 INFO L85 PathProgramCache]: Analyzing trace with hash -775010272, now seen corresponding path program 1 times [2023-11-26 10:46:13,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:13,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88101658] [2023-11-26 10:46:13,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:13,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:13,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:14,023 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 10:46:14,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:14,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88101658] [2023-11-26 10:46:14,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88101658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:14,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:14,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:14,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392690096] [2023-11-26 10:46:14,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:14,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:14,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:14,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:14,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:14,037 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 366 [2023-11-26 10:46:14,038 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 337 transitions, 919 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 10:46:14,038 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:14,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 366 [2023-11-26 10:46:14,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:14,229 INFO L124 PetriNetUnfolderBase]: 36/782 cut-off events. [2023-11-26 10:46:14,230 INFO L125 PetriNetUnfolderBase]: For 65/70 co-relation queries the response was YES. [2023-11-26 10:46:14,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1018 conditions, 782 events. 36/782 cut-off events. For 65/70 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2847 event pairs, 2 based on Foata normal form. 1/751 useless extension candidates. Maximal degree in co-relation 937. Up to 24 conditions per place. [2023-11-26 10:46:14,238 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 8 selfloop transitions, 2 changer transitions 0/337 dead transitions. [2023-11-26 10:46:14,238 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 337 transitions, 940 flow [2023-11-26 10:46:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:14,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1043 transitions. [2023-11-26 10:46:14,243 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9499089253187614 [2023-11-26 10:46:14,243 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1043 transitions. [2023-11-26 10:46:14,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1043 transitions. [2023-11-26 10:46:14,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:14,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1043 transitions. [2023-11-26 10:46:14,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 10:46:14,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:46:14,249 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:46:14,249 INFO L175 Difference]: Start difference. First operand has 337 places, 337 transitions, 919 flow. Second operand 3 states and 1043 transitions. [2023-11-26 10:46:14,249 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 337 transitions, 940 flow [2023-11-26 10:46:14,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 337 transitions, 933 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:46:14,260 INFO L231 Difference]: Finished difference. Result has 334 places, 336 transitions, 914 flow [2023-11-26 10:46:14,260 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=910, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=914, PETRI_PLACES=334, PETRI_TRANSITIONS=336} [2023-11-26 10:46:14,261 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 2 predicate places. [2023-11-26 10:46:14,261 INFO L495 AbstractCegarLoop]: Abstraction has has 334 places, 336 transitions, 914 flow [2023-11-26 10:46:14,262 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 10:46:14,262 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:14,262 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:14,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 10:46:14,263 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:46:14,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:14,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1910695759, now seen corresponding path program 1 times [2023-11-26 10:46:14,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:14,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43813047] [2023-11-26 10:46:14,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:14,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:14,405 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 10:46:14,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:14,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43813047] [2023-11-26 10:46:14,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43813047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:14,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:14,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:14,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949624405] [2023-11-26 10:46:14,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:14,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:14,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:14,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:14,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:14,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 344 out of 366 [2023-11-26 10:46:14,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 336 transitions, 914 flow. Second operand has 3 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 0 states have call successors, (0), 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 10:46:14,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:14,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 344 of 366 [2023-11-26 10:46:14,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:14,606 INFO L124 PetriNetUnfolderBase]: 39/778 cut-off events. [2023-11-26 10:46:14,606 INFO L125 PetriNetUnfolderBase]: For 72/77 co-relation queries the response was YES. [2023-11-26 10:46:14,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 778 events. 39/778 cut-off events. For 72/77 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2789 event pairs, 2 based on Foata normal form. 1/747 useless extension candidates. Maximal degree in co-relation 927. Up to 26 conditions per place. [2023-11-26 10:46:14,615 INFO L140 encePairwiseOnDemand]: 363/366 looper letters, 8 selfloop transitions, 2 changer transitions 0/336 dead transitions. [2023-11-26 10:46:14,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 335 places, 336 transitions, 935 flow [2023-11-26 10:46:14,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:14,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:14,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1043 transitions. [2023-11-26 10:46:14,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9499089253187614 [2023-11-26 10:46:14,618 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1043 transitions. [2023-11-26 10:46:14,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1043 transitions. [2023-11-26 10:46:14,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:14,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1043 transitions. [2023-11-26 10:46:14,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 10:46:14,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:46:14,624 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:46:14,625 INFO L175 Difference]: Start difference. First operand has 334 places, 336 transitions, 914 flow. Second operand 3 states and 1043 transitions. [2023-11-26 10:46:14,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 335 places, 336 transitions, 935 flow [2023-11-26 10:46:14,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 336 transitions, 931 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:46:14,636 INFO L231 Difference]: Finished difference. Result has 333 places, 335 transitions, 912 flow [2023-11-26 10:46:14,637 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=908, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=912, PETRI_PLACES=333, PETRI_TRANSITIONS=335} [2023-11-26 10:46:14,637 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 1 predicate places. [2023-11-26 10:46:14,637 INFO L495 AbstractCegarLoop]: Abstraction has has 333 places, 335 transitions, 912 flow [2023-11-26 10:46:14,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 345.6666666666667) internal successors, (1037), 3 states have internal predecessors, (1037), 0 states have call successors, (0), 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 10:46:14,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:14,639 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:14,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-26 10:46:14,639 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:46:14,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:14,640 INFO L85 PathProgramCache]: Analyzing trace with hash -581189330, now seen corresponding path program 1 times [2023-11-26 10:46:14,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:14,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893050479] [2023-11-26 10:46:14,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:14,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:14,795 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 10:46:14,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:14,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893050479] [2023-11-26 10:46:14,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893050479] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:14,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:14,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:14,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37928455] [2023-11-26 10:46:14,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:14,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:14,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:14,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:14,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:14,806 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 366 [2023-11-26 10:46:14,808 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 335 transitions, 912 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 10:46:14,808 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:14,808 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 366 [2023-11-26 10:46:14,809 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:14,983 INFO L124 PetriNetUnfolderBase]: 33/769 cut-off events. [2023-11-26 10:46:14,984 INFO L125 PetriNetUnfolderBase]: For 65/67 co-relation queries the response was YES. [2023-11-26 10:46:14,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 980 conditions, 769 events. 33/769 cut-off events. For 65/67 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2696 event pairs, 1 based on Foata normal form. 0/742 useless extension candidates. Maximal degree in co-relation 934. Up to 17 conditions per place. [2023-11-26 10:46:14,992 INFO L140 encePairwiseOnDemand]: 364/366 looper letters, 6 selfloop transitions, 1 changer transitions 0/334 dead transitions. [2023-11-26 10:46:14,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 334 transitions, 924 flow [2023-11-26 10:46:14,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:14,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1046 transitions. [2023-11-26 10:46:14,995 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9526411657559198 [2023-11-26 10:46:14,995 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1046 transitions. [2023-11-26 10:46:14,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1046 transitions. [2023-11-26 10:46:14,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:14,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1046 transitions. [2023-11-26 10:46:14,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 10:46:15,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:46:15,001 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:46:15,001 INFO L175 Difference]: Start difference. First operand has 333 places, 335 transitions, 912 flow. Second operand 3 states and 1046 transitions. [2023-11-26 10:46:15,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 334 transitions, 924 flow [2023-11-26 10:46:15,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 334 transitions, 920 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:46:15,012 INFO L231 Difference]: Finished difference. Result has 332 places, 334 transitions, 908 flow [2023-11-26 10:46:15,013 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=906, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=334, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=908, PETRI_PLACES=332, PETRI_TRANSITIONS=334} [2023-11-26 10:46:15,014 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 0 predicate places. [2023-11-26 10:46:15,014 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 334 transitions, 908 flow [2023-11-26 10:46:15,014 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 10:46:15,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:15,015 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:46:15,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 10:46:15,016 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2023-11-26 10:46:15,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:15,016 INFO L85 PathProgramCache]: Analyzing trace with hash -177174130, now seen corresponding path program 1 times [2023-11-26 10:46:15,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:15,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699542009] [2023-11-26 10:46:15,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:15,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:15,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2023-11-26 10:46:15,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:15,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699542009] [2023-11-26 10:46:15,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699542009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:15,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:15,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:15,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269799466] [2023-11-26 10:46:15,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:15,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:15,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:15,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:15,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:15,174 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 346 out of 366 [2023-11-26 10:46:15,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 334 transitions, 908 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 10:46:15,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:15,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 346 of 366 [2023-11-26 10:46:15,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:15,332 INFO L124 PetriNetUnfolderBase]: 33/763 cut-off events. [2023-11-26 10:46:15,332 INFO L125 PetriNetUnfolderBase]: For 66/68 co-relation queries the response was YES. [2023-11-26 10:46:15,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 967 conditions, 763 events. 33/763 cut-off events. For 66/68 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2650 event pairs, 1 based on Foata normal form. 2/737 useless extension candidates. Maximal degree in co-relation 943. Up to 18 conditions per place. [2023-11-26 10:46:15,338 INFO L140 encePairwiseOnDemand]: 364/366 looper letters, 0 selfloop transitions, 0 changer transitions 333/333 dead transitions. [2023-11-26 10:46:15,339 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 333 transitions, 918 flow [2023-11-26 10:46:15,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:15,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:15,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1045 transitions. [2023-11-26 10:46:15,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9517304189435337 [2023-11-26 10:46:15,340 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1045 transitions. [2023-11-26 10:46:15,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1045 transitions. [2023-11-26 10:46:15,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:15,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1045 transitions. [2023-11-26 10:46:15,342 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 10:46:15,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:46:15,344 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 366.0) internal successors, (1464), 4 states have internal predecessors, (1464), 0 states have call successors, (0), 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 10:46:15,344 INFO L175 Difference]: Start difference. First operand has 332 places, 334 transitions, 908 flow. Second operand 3 states and 1045 transitions. [2023-11-26 10:46:15,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 333 transitions, 918 flow [2023-11-26 10:46:15,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 333 transitions, 917 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:46:15,352 INFO L231 Difference]: Finished difference. Result has 332 places, 0 transitions, 0 flow [2023-11-26 10:46:15,352 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=366, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=333, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=333, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=332, PETRI_TRANSITIONS=0} [2023-11-26 10:46:15,353 INFO L281 CegarLoopForPetriNet]: 332 programPoint places, 0 predicate places. [2023-11-26 10:46:15,353 INFO L495 AbstractCegarLoop]: Abstraction has has 332 places, 0 transitions, 0 flow [2023-11-26 10:46:15,354 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 10:46:15,357 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (55 of 56 remaining) [2023-11-26 10:46:15,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2023-11-26 10:46:15,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2023-11-26 10:46:15,358 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2023-11-26 10:46:15,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2023-11-26 10:46:15,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2023-11-26 10:46:15,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2023-11-26 10:46:15,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2023-11-26 10:46:15,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2023-11-26 10:46:15,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2023-11-26 10:46:15,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2023-11-26 10:46:15,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2023-11-26 10:46:15,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2023-11-26 10:46:15,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2023-11-26 10:46:15,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2023-11-26 10:46:15,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2023-11-26 10:46:15,362 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2023-11-26 10:46:15,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2023-11-26 10:46:15,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2023-11-26 10:46:15,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (36 of 56 remaining) [2023-11-26 10:46:15,363 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2023-11-26 10:46:15,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2023-11-26 10:46:15,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2023-11-26 10:46:15,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2023-11-26 10:46:15,364 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2023-11-26 10:46:15,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2023-11-26 10:46:15,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2023-11-26 10:46:15,365 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2023-11-26 10:46:15,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2023-11-26 10:46:15,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2023-11-26 10:46:15,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2023-11-26 10:46:15,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2023-11-26 10:46:15,366 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 56 remaining) [2023-11-26 10:46:15,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 56 remaining) [2023-11-26 10:46:15,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2023-11-26 10:46:15,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2023-11-26 10:46:15,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2023-11-26 10:46:15,367 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2023-11-26 10:46:15,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2023-11-26 10:46:15,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2023-11-26 10:46:15,370 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2023-11-26 10:46:15,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2023-11-26 10:46:15,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2023-11-26 10:46:15,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2023-11-26 10:46:15,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2023-11-26 10:46:15,371 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2023-11-26 10:46:15,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2023-11-26 10:46:15,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2023-11-26 10:46:15,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2023-11-26 10:46:15,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2023-11-26 10:46:15,372 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2023-11-26 10:46:15,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2023-11-26 10:46:15,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2023-11-26 10:46:15,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2023-11-26 10:46:15,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2023-11-26 10:46:15,373 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2023-11-26 10:46:15,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 10:46:15,374 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:15,381 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 10:46:15,381 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:46:15,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:46:15 BasicIcfg [2023-11-26 10:46:15,386 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:46:15,387 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:46:15,387 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:46:15,387 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:46:15,388 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:45:46" (3/4) ... [2023-11-26 10:46:15,390 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:46:15,394 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-26 10:46:15,394 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-26 10:46:15,403 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-26 10:46:15,404 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 10:46:15,405 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 10:46:15,405 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 10:46:15,530 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:46:15,530 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:46:15,530 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:46:15,531 INFO L158 Benchmark]: Toolchain (without parser) took 30277.39ms. Allocated memory was 125.8MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 87.5MB in the beginning and 365.2MB in the end (delta: -277.7MB). Peak memory consumption was 753.8MB. Max. memory is 16.1GB. [2023-11-26 10:46:15,531 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:46:15,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.54ms. Allocated memory is still 125.8MB. Free memory was 87.5MB in the beginning and 74.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 10:46:15,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.79ms. Allocated memory is still 125.8MB. Free memory was 74.7MB in the beginning and 71.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:46:15,533 INFO L158 Benchmark]: Boogie Preprocessor took 104.59ms. Allocated memory is still 125.8MB. Free memory was 71.5MB in the beginning and 68.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:46:15,533 INFO L158 Benchmark]: RCFGBuilder took 984.31ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 68.4MB in the beginning and 115.4MB in the end (delta: -47.0MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2023-11-26 10:46:15,534 INFO L158 Benchmark]: TraceAbstraction took 28609.55ms. Allocated memory was 155.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 114.6MB in the beginning and 371.5MB in the end (delta: -256.9MB). Peak memory consumption was 742.9MB. Max. memory is 16.1GB. [2023-11-26 10:46:15,534 INFO L158 Benchmark]: Witness Printer took 143.53ms. Allocated memory is still 1.2GB. Free memory was 371.5MB in the beginning and 365.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:46:15,542 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.54ms. Allocated memory is still 125.8MB. Free memory was 87.5MB in the beginning and 74.7MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.79ms. Allocated memory is still 125.8MB. Free memory was 74.7MB in the beginning and 71.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.59ms. Allocated memory is still 125.8MB. Free memory was 71.5MB in the beginning and 68.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 984.31ms. Allocated memory was 125.8MB in the beginning and 155.2MB in the end (delta: 29.4MB). Free memory was 68.4MB in the beginning and 115.4MB in the end (delta: -47.0MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * TraceAbstraction took 28609.55ms. Allocated memory was 155.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 114.6MB in the beginning and 371.5MB in the end (delta: -256.9MB). Peak memory consumption was 742.9MB. Max. memory is 16.1GB. * Witness Printer took 143.53ms. Allocated memory is still 1.2GB. Free memory was 371.5MB in the beginning and 365.2MB 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: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: 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: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 83]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 84]: 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: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 508 locations, 56 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: 28.3s, OverallIterations: 22, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3145 SdHoareTripleChecker+Valid, 6.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2033 mSDsluCounter, 1060 SdHoareTripleChecker+Invalid, 5.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 887 mSDsCounter, 1021 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5707 IncrementalHoareTripleChecker+Invalid, 6728 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1021 mSolverCounterUnsat, 173 mSDtfsCounter, 5707 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1029 GetRequests, 914 SyntacticMatches, 5 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 547 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=975occurred in iteration=12, InterpolantAutomatonStates: 112, 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: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 4892 NumberOfCodeBlocks, 4802 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 5221 ConstructedInterpolants, 0 QuantifiedInterpolants, 7791 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1131 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 27 InterpolantComputations, 20 PerfectInterpolantSequences, 3487/3682 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 32 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 10:46:15,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14a0a9c3-4cda-45e2-8887-c24d7ea3a65e/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE