./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 23ca06a4d1d66eab783b29fc3ce31114eee62eb7d17a2452b84e2d73b8d92cfa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:43,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:43,602 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 07:55:43,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:43,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:43,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:43,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:43,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:43,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:55:43,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:55:43,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:43,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:43,659 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:43,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:43,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:55:43,662 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:55:43,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:43,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:55:43,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:43,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:55:43,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:55:43,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:55:43,665 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 07:55:43,665 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:43,665 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:55:43,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:43,666 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:43,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:43,668 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:43,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:55:43,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:43,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:43,670 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:55:43,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:55:43,670 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:43,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:55:43,671 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:55:43,671 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:55:43,671 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:55:43,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:55:43,672 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:55:43,672 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_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ca06a4d1d66eab783b29fc3ce31114eee62eb7d17a2452b84e2d73b8d92cfa [2023-11-19 07:55:43,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:44,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:44,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:44,049 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:44,050 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:44,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-19 07:55:47,176 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:47,407 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:47,408 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/sv-benchmarks/c/weaver/chl-chromosome-symm.wvr.c [2023-11-19 07:55:47,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/data/49f4c35c9/8db1148888d2490683a04a1fb7b48a3b/FLAG7610190a3 [2023-11-19 07:55:47,434 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/data/49f4c35c9/8db1148888d2490683a04a1fb7b48a3b [2023-11-19 07:55:47,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:47,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:47,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:47,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:47,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:47,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:47,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b71afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47, skipping insertion in model container [2023-11-19 07:55:47,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:47,491 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:47,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:47,738 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:47,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:47,833 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:47,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47 WrapperNode [2023-11-19 07:55:47,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:47,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:47,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:47,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:47,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:47,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:47,918 INFO L138 Inliner]: procedures = 25, calls = 38, calls flagged for inlining = 16, calls inlined = 20, statements flattened = 343 [2023-11-19 07:55:47,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:47,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:47,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:47,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:47,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:47,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:47,953 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:47,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:47,988 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:47,993 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:48,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:48,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:48,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:48,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:48,019 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:48,020 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:48,021 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (1/1) ... [2023-11-19 07:55:48,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:55:48,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:48,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:48,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:48,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:55:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:55:48,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:55:48,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:55:48,102 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 07:55:48,102 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 07:55:48,102 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 07:55:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 07:55:48,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:55:48,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:55:48,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:48,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:48,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:55:48,105 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 07:55:48,240 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:48,243 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:48,959 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:48,975 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:48,975 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:55:48,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:48 BoogieIcfgContainer [2023-11-19 07:55:48,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:48,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:55:48,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:55:48,993 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:55:48,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:55:47" (1/3) ... [2023-11-19 07:55:48,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2647b519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:48, skipping insertion in model container [2023-11-19 07:55:48,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:47" (2/3) ... [2023-11-19 07:55:48,996 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2647b519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:55:48, skipping insertion in model container [2023-11-19 07:55:48,996 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:48" (3/3) ... [2023-11-19 07:55:48,998 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-symm.wvr.c [2023-11-19 07:55:49,007 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 07:55:49,018 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:55:49,018 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2023-11-19 07:55:49,019 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 07:55:49,183 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 07:55:49,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 430 places, 449 transitions, 912 flow [2023-11-19 07:55:49,449 INFO L124 PetriNetUnfolderBase]: 26/447 cut-off events. [2023-11-19 07:55:49,450 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:55:49,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 447 events. 26/447 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 706 event pairs, 0 based on Foata normal form. 0/385 useless extension candidates. Maximal degree in co-relation 255. Up to 2 conditions per place. [2023-11-19 07:55:49,460 INFO L82 GeneralOperation]: Start removeDead. Operand has 430 places, 449 transitions, 912 flow [2023-11-19 07:55:49,471 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 406 places, 423 transitions, 858 flow [2023-11-19 07:55:49,475 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 07:55:49,485 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 406 places, 423 transitions, 858 flow [2023-11-19 07:55:49,488 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 406 places, 423 transitions, 858 flow [2023-11-19 07:55:49,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 406 places, 423 transitions, 858 flow [2023-11-19 07:55:49,605 INFO L124 PetriNetUnfolderBase]: 24/423 cut-off events. [2023-11-19 07:55:49,606 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 07:55:49,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 432 conditions, 423 events. 24/423 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 695 event pairs, 0 based on Foata normal form. 0/364 useless extension candidates. Maximal degree in co-relation 255. Up to 2 conditions per place. [2023-11-19 07:55:49,633 INFO L119 LiptonReduction]: Number of co-enabled transitions 28496 [2023-11-19 07:56:01,096 INFO L134 LiptonReduction]: Checked pairs total: 77032 [2023-11-19 07:56:01,099 INFO L136 LiptonReduction]: Total number of compositions: 449 [2023-11-19 07:56:01,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:56:01,144 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;@7ab6fae1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:56:01,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2023-11-19 07:56:01,148 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 07:56:01,148 INFO L124 PetriNetUnfolderBase]: 1/2 cut-off events. [2023-11-19 07:56:01,148 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 07:56:01,149 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:01,149 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2023-11-19 07:56:01,151 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:01,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:01,157 INFO L85 PathProgramCache]: Analyzing trace with hash 54306, now seen corresponding path program 1 times [2023-11-19 07:56:01,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:01,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279183709] [2023-11-19 07:56:01,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:01,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:01,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:01,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:01,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279183709] [2023-11-19 07:56:01,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279183709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:01,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:01,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 07:56:01,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978277078] [2023-11-19 07:56:01,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:01,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:56:01,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:01,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:56:01,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:56:01,466 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 898 [2023-11-19 07:56:01,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 100 transitions, 212 flow. Second operand has 2 states, 2 states have (on average 428.0) internal successors, (856), 2 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:01,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:01,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 898 [2023-11-19 07:56:01,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:01,737 INFO L124 PetriNetUnfolderBase]: 270/982 cut-off events. [2023-11-19 07:56:01,738 INFO L125 PetriNetUnfolderBase]: For 40/107 co-relation queries the response was YES. [2023-11-19 07:56:01,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1478 conditions, 982 events. 270/982 cut-off events. For 40/107 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 6705 event pairs, 228 based on Foata normal form. 47/862 useless extension candidates. Maximal degree in co-relation 1303. Up to 465 conditions per place. [2023-11-19 07:56:01,748 INFO L140 encePairwiseOnDemand]: 874/898 looper letters, 29 selfloop transitions, 0 changer transitions 1/76 dead transitions. [2023-11-19 07:56:01,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 76 transitions, 224 flow [2023-11-19 07:56:01,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:56:01,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 07:56:01,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 908 transitions. [2023-11-19 07:56:01,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5055679287305123 [2023-11-19 07:56:01,775 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 908 transitions. [2023-11-19 07:56:01,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 908 transitions. [2023-11-19 07:56:01,781 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:01,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 908 transitions. [2023-11-19 07:56:01,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 454.0) internal successors, (908), 2 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:01,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 898.0) internal successors, (2694), 3 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:01,806 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 898.0) internal successors, (2694), 3 states have internal predecessors, (2694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:01,808 INFO L175 Difference]: Start difference. First operand has 101 places, 100 transitions, 212 flow. Second operand 2 states and 908 transitions. [2023-11-19 07:56:01,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 76 transitions, 224 flow [2023-11-19 07:56:01,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 76 transitions, 216 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:56:01,818 INFO L231 Difference]: Finished difference. Result has 76 places, 75 transitions, 153 flow [2023-11-19 07:56:01,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=153, PETRI_PLACES=76, PETRI_TRANSITIONS=75} [2023-11-19 07:56:01,825 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -25 predicate places. [2023-11-19 07:56:01,825 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 153 flow [2023-11-19 07:56:01,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 428.0) internal successors, (856), 2 states have internal predecessors, (856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:01,827 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:01,827 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 07:56:01,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:56:01,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:01,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:01,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1285566960, now seen corresponding path program 1 times [2023-11-19 07:56:01,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:01,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200311003] [2023-11-19 07:56:01,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:01,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:01,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:01,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:01,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200311003] [2023-11-19 07:56:01,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200311003] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:01,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:01,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:01,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656108823] [2023-11-19 07:56:01,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:01,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:01,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:01,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:01,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:02,003 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 898 [2023-11-19 07:56:02,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:02,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 898 [2023-11-19 07:56:02,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:02,234 INFO L124 PetriNetUnfolderBase]: 270/915 cut-off events. [2023-11-19 07:56:02,234 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-19 07:56:02,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 915 events. 270/915 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5966 event pairs, 87 based on Foata normal form. 0/758 useless extension candidates. Maximal degree in co-relation 1386. Up to 445 conditions per place. [2023-11-19 07:56:02,243 INFO L140 encePairwiseOnDemand]: 894/898 looper letters, 35 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2023-11-19 07:56:02,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 81 transitions, 240 flow [2023-11-19 07:56:02,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:02,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:56:02,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1299 transitions. [2023-11-19 07:56:02,250 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4821826280623608 [2023-11-19 07:56:02,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1299 transitions. [2023-11-19 07:56:02,251 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1299 transitions. [2023-11-19 07:56:02,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:02,252 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1299 transitions. [2023-11-19 07:56:02,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 433.0) internal successors, (1299), 3 states have internal predecessors, (1299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,267 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,268 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 153 flow. Second operand 3 states and 1299 transitions. [2023-11-19 07:56:02,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 81 transitions, 240 flow [2023-11-19 07:56:02,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 81 transitions, 240 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:56:02,275 INFO L231 Difference]: Finished difference. Result has 76 places, 75 transitions, 163 flow [2023-11-19 07:56:02,275 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=76, PETRI_TRANSITIONS=75} [2023-11-19 07:56:02,277 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -25 predicate places. [2023-11-19 07:56:02,277 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 75 transitions, 163 flow [2023-11-19 07:56:02,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 422.0) internal successors, (1266), 3 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,278 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:02,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:02,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:56:02,279 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:02,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:02,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1529583652, now seen corresponding path program 1 times [2023-11-19 07:56:02,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:02,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076066518] [2023-11-19 07:56:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:02,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:02,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:02,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:02,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076066518] [2023-11-19 07:56:02,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076066518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:02,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:02,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:02,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375897753] [2023-11-19 07:56:02,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:02,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:02,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:02,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:02,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:02,356 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 898 [2023-11-19 07:56:02,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 163 flow. Second operand has 3 states, 3 states have (on average 422.6666666666667) internal successors, (1268), 3 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:02,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 898 [2023-11-19 07:56:02,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:02,524 INFO L124 PetriNetUnfolderBase]: 270/909 cut-off events. [2023-11-19 07:56:02,524 INFO L125 PetriNetUnfolderBase]: For 40/76 co-relation queries the response was YES. [2023-11-19 07:56:02,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1436 conditions, 909 events. 270/909 cut-off events. For 40/76 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5893 event pairs, 96 based on Foata normal form. 1/751 useless extension candidates. Maximal degree in co-relation 1432. Up to 440 conditions per place. [2023-11-19 07:56:02,532 INFO L140 encePairwiseOnDemand]: 894/898 looper letters, 36 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2023-11-19 07:56:02,532 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 80 transitions, 253 flow [2023-11-19 07:56:02,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:02,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:56:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1298 transitions. [2023-11-19 07:56:02,537 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48181143281366 [2023-11-19 07:56:02,537 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1298 transitions. [2023-11-19 07:56:02,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1298 transitions. [2023-11-19 07:56:02,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:02,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1298 transitions. [2023-11-19 07:56:02,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 432.6666666666667) internal successors, (1298), 3 states have internal predecessors, (1298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,552 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,552 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 163 flow. Second operand 3 states and 1298 transitions. [2023-11-19 07:56:02,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 80 transitions, 253 flow [2023-11-19 07:56:02,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 80 transitions, 253 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:56:02,555 INFO L231 Difference]: Finished difference. Result has 77 places, 75 transitions, 173 flow [2023-11-19 07:56:02,555 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=77, PETRI_TRANSITIONS=75} [2023-11-19 07:56:02,556 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -24 predicate places. [2023-11-19 07:56:02,556 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 75 transitions, 173 flow [2023-11-19 07:56:02,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 422.6666666666667) internal successors, (1268), 3 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,558 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:02,558 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:02,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:56:02,558 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:02,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:02,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1554174169, now seen corresponding path program 1 times [2023-11-19 07:56:02,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:02,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747073148] [2023-11-19 07:56:02,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:02,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:02,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:02,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:02,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747073148] [2023-11-19 07:56:02,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747073148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:02,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:02,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:02,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346601243] [2023-11-19 07:56:02,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:02,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:02,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:02,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:02,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:02,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 898 [2023-11-19 07:56:02,627 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 75 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 423.3333333333333) internal successors, (1270), 3 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:02,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 898 [2023-11-19 07:56:02,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:02,925 INFO L124 PetriNetUnfolderBase]: 481/1530 cut-off events. [2023-11-19 07:56:02,926 INFO L125 PetriNetUnfolderBase]: For 120/188 co-relation queries the response was YES. [2023-11-19 07:56:02,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2512 conditions, 1530 events. 481/1530 cut-off events. For 120/188 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10474 event pairs, 149 based on Foata normal form. 2/1300 useless extension candidates. Maximal degree in co-relation 2507. Up to 522 conditions per place. [2023-11-19 07:56:02,937 INFO L140 encePairwiseOnDemand]: 894/898 looper letters, 54 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2023-11-19 07:56:02,938 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 93 transitions, 331 flow [2023-11-19 07:56:02,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:02,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:56:02,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1314 transitions. [2023-11-19 07:56:02,943 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48775055679287305 [2023-11-19 07:56:02,943 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1314 transitions. [2023-11-19 07:56:02,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1314 transitions. [2023-11-19 07:56:02,944 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:02,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1314 transitions. [2023-11-19 07:56:02,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 438.0) internal successors, (1314), 3 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,959 INFO L175 Difference]: Start difference. First operand has 77 places, 75 transitions, 173 flow. Second operand 3 states and 1314 transitions. [2023-11-19 07:56:02,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 93 transitions, 331 flow [2023-11-19 07:56:02,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 93 transitions, 331 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:56:02,963 INFO L231 Difference]: Finished difference. Result has 78 places, 75 transitions, 183 flow [2023-11-19 07:56:02,963 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=78, PETRI_TRANSITIONS=75} [2023-11-19 07:56:02,964 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -23 predicate places. [2023-11-19 07:56:02,964 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 75 transitions, 183 flow [2023-11-19 07:56:02,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 423.3333333333333) internal successors, (1270), 3 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:02,966 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:02,966 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:02,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:56:02,967 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:02,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:02,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1624156584, now seen corresponding path program 1 times [2023-11-19 07:56:02,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:02,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509173018] [2023-11-19 07:56:02,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:02,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:03,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:56:03,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:03,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509173018] [2023-11-19 07:56:03,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509173018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:03,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:03,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:03,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683207532] [2023-11-19 07:56:03,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:03,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:03,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:03,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:03,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:03,150 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 898 [2023-11-19 07:56:03,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 75 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:03,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:03,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 898 [2023-11-19 07:56:03,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:03,360 INFO L124 PetriNetUnfolderBase]: 396/1245 cut-off events. [2023-11-19 07:56:03,361 INFO L125 PetriNetUnfolderBase]: For 133/200 co-relation queries the response was YES. [2023-11-19 07:56:03,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2166 conditions, 1245 events. 396/1245 cut-off events. For 133/200 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 7823 event pairs, 296 based on Foata normal form. 0/1077 useless extension candidates. Maximal degree in co-relation 2160. Up to 668 conditions per place. [2023-11-19 07:56:03,372 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 32 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2023-11-19 07:56:03,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 77 transitions, 259 flow [2023-11-19 07:56:03,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:03,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:56:03,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1278 transitions. [2023-11-19 07:56:03,378 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47438752783964366 [2023-11-19 07:56:03,378 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1278 transitions. [2023-11-19 07:56:03,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1278 transitions. [2023-11-19 07:56:03,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:03,380 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1278 transitions. [2023-11-19 07:56:03,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.0) internal successors, (1278), 3 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:03,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:03,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:03,394 INFO L175 Difference]: Start difference. First operand has 78 places, 75 transitions, 183 flow. Second operand 3 states and 1278 transitions. [2023-11-19 07:56:03,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 77 transitions, 259 flow [2023-11-19 07:56:03,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 259 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:56:03,397 INFO L231 Difference]: Finished difference. Result has 81 places, 77 transitions, 205 flow [2023-11-19 07:56:03,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=205, PETRI_PLACES=81, PETRI_TRANSITIONS=77} [2023-11-19 07:56:03,399 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -20 predicate places. [2023-11-19 07:56:03,399 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 77 transitions, 205 flow [2023-11-19 07:56:03,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:03,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:03,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:03,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:56:03,401 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:03,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:03,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1808971269, now seen corresponding path program 1 times [2023-11-19 07:56:03,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:03,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184729189] [2023-11-19 07:56:03,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:03,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:03,543 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:56:03,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:03,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184729189] [2023-11-19 07:56:03,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184729189] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:03,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436758776] [2023-11-19 07:56:03,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:03,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:03,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:03,553 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:03,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:56:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:03,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:56:03,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:03,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:56:03,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:03,811 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:56:03,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436758776] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:03,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:56:03,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2023-11-19 07:56:03,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379660851] [2023-11-19 07:56:03,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:03,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 07:56:03,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:03,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 07:56:03,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:56:04,058 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 898 [2023-11-19 07:56:04,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 77 transitions, 205 flow. Second operand has 8 states, 8 states have (on average 412.875) internal successors, (3303), 8 states have internal predecessors, (3303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:04,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:04,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 898 [2023-11-19 07:56:04,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:04,355 INFO L124 PetriNetUnfolderBase]: 396/1251 cut-off events. [2023-11-19 07:56:04,355 INFO L125 PetriNetUnfolderBase]: For 133/200 co-relation queries the response was YES. [2023-11-19 07:56:04,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2195 conditions, 1251 events. 396/1251 cut-off events. For 133/200 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 7807 event pairs, 296 based on Foata normal form. 3/1087 useless extension candidates. Maximal degree in co-relation 2187. Up to 668 conditions per place. [2023-11-19 07:56:04,367 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 32 selfloop transitions, 10 changer transitions 0/83 dead transitions. [2023-11-19 07:56:04,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 83 transitions, 313 flow [2023-11-19 07:56:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:04,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:56:04,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2509 transitions. [2023-11-19 07:56:04,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46566443949517444 [2023-11-19 07:56:04,376 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2509 transitions. [2023-11-19 07:56:04,377 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2509 transitions. [2023-11-19 07:56:04,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:04,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2509 transitions. [2023-11-19 07:56:04,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 418.1666666666667) internal successors, (2509), 6 states have internal predecessors, (2509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:04,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:04,401 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:04,401 INFO L175 Difference]: Start difference. First operand has 81 places, 77 transitions, 205 flow. Second operand 6 states and 2509 transitions. [2023-11-19 07:56:04,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 83 transitions, 313 flow [2023-11-19 07:56:04,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 83 transitions, 309 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 07:56:04,405 INFO L231 Difference]: Finished difference. Result has 88 places, 83 transitions, 267 flow [2023-11-19 07:56:04,405 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=267, PETRI_PLACES=88, PETRI_TRANSITIONS=83} [2023-11-19 07:56:04,406 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -13 predicate places. [2023-11-19 07:56:04,406 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 267 flow [2023-11-19 07:56:04,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 412.875) internal successors, (3303), 8 states have internal predecessors, (3303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:04,408 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:04,408 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:04,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:04,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-19 07:56:04,625 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:04,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:04,625 INFO L85 PathProgramCache]: Analyzing trace with hash -587488488, now seen corresponding path program 2 times [2023-11-19 07:56:04,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:04,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271254574] [2023-11-19 07:56:04,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:04,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:04,888 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 07:56:04,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:04,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271254574] [2023-11-19 07:56:04,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271254574] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:04,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582772400] [2023-11-19 07:56:04,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:56:04,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:04,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:04,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:04,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:56:05,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:56:05,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:56:05,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:56:05,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:05,139 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 [2023-11-19 07:56:05,171 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 [2023-11-19 07:56:05,216 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:56:05,216 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 [2023-11-19 07:56:05,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:56:05,268 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 [2023-11-19 07:56:05,303 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 07:56:05,303 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:56:05,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582772400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:05,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:56:05,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 11 [2023-11-19 07:56:05,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172930212] [2023-11-19 07:56:05,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:05,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:56:05,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:05,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:56:05,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:56:05,720 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 898 [2023-11-19 07:56:05,724 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 267 flow. Second operand has 7 states, 7 states have (on average 410.85714285714283) internal successors, (2876), 7 states have internal predecessors, (2876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:05,724 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:05,724 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 898 [2023-11-19 07:56:05,725 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:06,338 INFO L124 PetriNetUnfolderBase]: 1285/2515 cut-off events. [2023-11-19 07:56:06,338 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2023-11-19 07:56:06,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5178 conditions, 2515 events. 1285/2515 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 14705 event pairs, 85 based on Foata normal form. 0/2250 useless extension candidates. Maximal degree in co-relation 5167. Up to 756 conditions per place. [2023-11-19 07:56:06,363 INFO L140 encePairwiseOnDemand]: 892/898 looper letters, 133 selfloop transitions, 5 changer transitions 0/174 dead transitions. [2023-11-19 07:56:06,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 174 transitions, 825 flow [2023-11-19 07:56:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:56:06,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:56:06,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2969 transitions. [2023-11-19 07:56:06,376 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4723194400254534 [2023-11-19 07:56:06,376 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2969 transitions. [2023-11-19 07:56:06,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2969 transitions. [2023-11-19 07:56:06,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:06,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2969 transitions. [2023-11-19 07:56:06,397 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 424.14285714285717) internal successors, (2969), 7 states have internal predecessors, (2969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:06,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 898.0) internal successors, (7184), 8 states have internal predecessors, (7184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:06,422 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 898.0) internal successors, (7184), 8 states have internal predecessors, (7184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:06,423 INFO L175 Difference]: Start difference. First operand has 88 places, 83 transitions, 267 flow. Second operand 7 states and 2969 transitions. [2023-11-19 07:56:06,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 174 transitions, 825 flow [2023-11-19 07:56:06,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 174 transitions, 809 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-11-19 07:56:06,437 INFO L231 Difference]: Finished difference. Result has 92 places, 82 transitions, 259 flow [2023-11-19 07:56:06,437 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=259, PETRI_PLACES=92, PETRI_TRANSITIONS=82} [2023-11-19 07:56:06,438 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -9 predicate places. [2023-11-19 07:56:06,438 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 82 transitions, 259 flow [2023-11-19 07:56:06,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 410.85714285714283) internal successors, (2876), 7 states have internal predecessors, (2876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:06,439 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:06,439 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:06,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-19 07:56:06,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:06,661 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:06,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:06,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1025323311, now seen corresponding path program 1 times [2023-11-19 07:56:06,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:06,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672036835] [2023-11-19 07:56:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:06,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:06,745 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 07:56:06,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:06,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672036835] [2023-11-19 07:56:06,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672036835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:06,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:06,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:56:06,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143639170] [2023-11-19 07:56:06,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:06,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:56:06,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:06,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:56:06,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:56:06,767 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 420 out of 898 [2023-11-19 07:56:06,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 82 transitions, 259 flow. Second operand has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:06,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:06,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 420 of 898 [2023-11-19 07:56:06,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:07,071 INFO L124 PetriNetUnfolderBase]: 538/1611 cut-off events. [2023-11-19 07:56:07,072 INFO L125 PetriNetUnfolderBase]: For 312/379 co-relation queries the response was YES. [2023-11-19 07:56:07,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3017 conditions, 1611 events. 538/1611 cut-off events. For 312/379 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 10675 event pairs, 144 based on Foata normal form. 1/1465 useless extension candidates. Maximal degree in co-relation 3005. Up to 630 conditions per place. [2023-11-19 07:56:07,088 INFO L140 encePairwiseOnDemand]: 894/898 looper letters, 62 selfloop transitions, 2 changer transitions 0/99 dead transitions. [2023-11-19 07:56:07,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 99 transitions, 436 flow [2023-11-19 07:56:07,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:56:07,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 07:56:07,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1313 transitions. [2023-11-19 07:56:07,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4873793615441722 [2023-11-19 07:56:07,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1313 transitions. [2023-11-19 07:56:07,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1313 transitions. [2023-11-19 07:56:07,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:07,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1313 transitions. [2023-11-19 07:56:07,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 437.6666666666667) internal successors, (1313), 3 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:07,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:07,106 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 898.0) internal successors, (3592), 4 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:07,106 INFO L175 Difference]: Start difference. First operand has 92 places, 82 transitions, 259 flow. Second operand 3 states and 1313 transitions. [2023-11-19 07:56:07,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 99 transitions, 436 flow [2023-11-19 07:56:07,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 99 transitions, 425 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:56:07,116 INFO L231 Difference]: Finished difference. Result has 88 places, 82 transitions, 260 flow [2023-11-19 07:56:07,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=88, PETRI_TRANSITIONS=82} [2023-11-19 07:56:07,120 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -13 predicate places. [2023-11-19 07:56:07,120 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 82 transitions, 260 flow [2023-11-19 07:56:07,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.6666666666667) internal successors, (1274), 3 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:07,121 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:07,122 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:07,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:56:07,122 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:07,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:07,122 INFO L85 PathProgramCache]: Analyzing trace with hash -313034942, now seen corresponding path program 1 times [2023-11-19 07:56:07,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:07,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785576172] [2023-11-19 07:56:07,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:07,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:07,357 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 07:56:07,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:07,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785576172] [2023-11-19 07:56:07,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785576172] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:56:07,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996134806] [2023-11-19 07:56:07,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:07,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:07,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:07,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:56:07,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:56:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:07,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:56:07,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 07:56:07,597 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:56:07,645 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 07:56:07,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996134806] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:56:07,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:56:07,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-19 07:56:07,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118260376] [2023-11-19 07:56:07,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:56:07,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:56:07,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:07,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:56:07,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:56:08,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 411 out of 898 [2023-11-19 07:56:08,086 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 82 transitions, 260 flow. Second operand has 13 states, 13 states have (on average 412.6923076923077) internal successors, (5365), 13 states have internal predecessors, (5365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:08,086 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:08,086 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 411 of 898 [2023-11-19 07:56:08,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:08,433 INFO L124 PetriNetUnfolderBase]: 423/1380 cut-off events. [2023-11-19 07:56:08,433 INFO L125 PetriNetUnfolderBase]: For 147/220 co-relation queries the response was YES. [2023-11-19 07:56:08,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2475 conditions, 1380 events. 423/1380 cut-off events. For 147/220 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8904 event pairs, 311 based on Foata normal form. 1/1272 useless extension candidates. Maximal degree in co-relation 2463. Up to 701 conditions per place. [2023-11-19 07:56:08,448 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 33 selfloop transitions, 12 changer transitions 0/84 dead transitions. [2023-11-19 07:56:08,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 84 transitions, 362 flow [2023-11-19 07:56:08,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:56:08,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-19 07:56:08,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2918 transitions. [2023-11-19 07:56:08,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.464206172446707 [2023-11-19 07:56:08,461 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2918 transitions. [2023-11-19 07:56:08,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2918 transitions. [2023-11-19 07:56:08,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:08,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2918 transitions. [2023-11-19 07:56:08,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 416.85714285714283) internal successors, (2918), 7 states have internal predecessors, (2918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:08,485 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 898.0) internal successors, (7184), 8 states have internal predecessors, (7184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:08,488 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 898.0) internal successors, (7184), 8 states have internal predecessors, (7184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:08,488 INFO L175 Difference]: Start difference. First operand has 88 places, 82 transitions, 260 flow. Second operand 7 states and 2918 transitions. [2023-11-19 07:56:08,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 84 transitions, 362 flow [2023-11-19 07:56:08,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 84 transitions, 362 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 07:56:08,493 INFO L231 Difference]: Finished difference. Result has 95 places, 84 transitions, 306 flow [2023-11-19 07:56:08,494 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=306, PETRI_PLACES=95, PETRI_TRANSITIONS=84} [2023-11-19 07:56:08,495 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -6 predicate places. [2023-11-19 07:56:08,496 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 84 transitions, 306 flow [2023-11-19 07:56:08,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 412.6923076923077) internal successors, (5365), 13 states have internal predecessors, (5365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:08,498 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:08,499 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:08,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:08,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:56:08,721 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:08,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:08,721 INFO L85 PathProgramCache]: Analyzing trace with hash 311532085, now seen corresponding path program 2 times [2023-11-19 07:56:08,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:08,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010332451] [2023-11-19 07:56:08,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:08,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:09,385 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:56:09,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:09,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010332451] [2023-11-19 07:56:09,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010332451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:09,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:09,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:56:09,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628481426] [2023-11-19 07:56:09,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:09,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:09,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:09,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:09,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:09,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 898 [2023-11-19 07:56:09,917 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 84 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 411.6666666666667) internal successors, (2470), 6 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:09,917 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:09,918 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 898 [2023-11-19 07:56:09,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:10,439 INFO L124 PetriNetUnfolderBase]: 711/1816 cut-off events. [2023-11-19 07:56:10,439 INFO L125 PetriNetUnfolderBase]: For 204/271 co-relation queries the response was YES. [2023-11-19 07:56:10,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3512 conditions, 1816 events. 711/1816 cut-off events. For 204/271 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 11285 event pairs, 311 based on Foata normal form. 0/1720 useless extension candidates. Maximal degree in co-relation 3498. Up to 701 conditions per place. [2023-11-19 07:56:10,463 INFO L140 encePairwiseOnDemand]: 892/898 looper letters, 105 selfloop transitions, 5 changer transitions 0/143 dead transitions. [2023-11-19 07:56:10,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 143 transitions, 684 flow [2023-11-19 07:56:10,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:10,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:56:10,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2545 transitions. [2023-11-19 07:56:10,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47234595397178913 [2023-11-19 07:56:10,475 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2545 transitions. [2023-11-19 07:56:10,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2545 transitions. [2023-11-19 07:56:10,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:10,478 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2545 transitions. [2023-11-19 07:56:10,486 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 424.1666666666667) internal successors, (2545), 6 states have internal predecessors, (2545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:10,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:10,501 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:10,501 INFO L175 Difference]: Start difference. First operand has 95 places, 84 transitions, 306 flow. Second operand 6 states and 2545 transitions. [2023-11-19 07:56:10,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 143 transitions, 684 flow [2023-11-19 07:56:10,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 143 transitions, 660 flow, removed 4 selfloop flow, removed 4 redundant places. [2023-11-19 07:56:10,507 INFO L231 Difference]: Finished difference. Result has 95 places, 83 transitions, 290 flow [2023-11-19 07:56:10,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=290, PETRI_PLACES=95, PETRI_TRANSITIONS=83} [2023-11-19 07:56:10,508 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -6 predicate places. [2023-11-19 07:56:10,509 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 83 transitions, 290 flow [2023-11-19 07:56:10,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 411.6666666666667) internal successors, (2470), 6 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:10,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:10,511 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:10,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:56:10,512 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:10,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:10,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1932498779, now seen corresponding path program 1 times [2023-11-19 07:56:10,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:10,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201390519] [2023-11-19 07:56:10,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:10,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:11,349 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:56:11,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:11,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201390519] [2023-11-19 07:56:11,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201390519] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:11,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:11,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:56:11,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430248938] [2023-11-19 07:56:11,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:11,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:11,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:11,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:11,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:11,775 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 898 [2023-11-19 07:56:11,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 83 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 412.0) internal successors, (2472), 6 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:11,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:11,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 898 [2023-11-19 07:56:11,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:12,159 INFO L124 PetriNetUnfolderBase]: 595/1513 cut-off events. [2023-11-19 07:56:12,159 INFO L125 PetriNetUnfolderBase]: For 246/319 co-relation queries the response was YES. [2023-11-19 07:56:12,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3092 conditions, 1513 events. 595/1513 cut-off events. For 246/319 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 8789 event pairs, 242 based on Foata normal form. 0/1458 useless extension candidates. Maximal degree in co-relation 3077. Up to 556 conditions per place. [2023-11-19 07:56:12,174 INFO L140 encePairwiseOnDemand]: 892/898 looper letters, 88 selfloop transitions, 5 changer transitions 0/126 dead transitions. [2023-11-19 07:56:12,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 126 transitions, 610 flow [2023-11-19 07:56:12,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:12,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:56:12,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2528 transitions. [2023-11-19 07:56:12,184 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46919079435783223 [2023-11-19 07:56:12,184 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2528 transitions. [2023-11-19 07:56:12,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2528 transitions. [2023-11-19 07:56:12,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:12,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2528 transitions. [2023-11-19 07:56:12,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 421.3333333333333) internal successors, (2528), 6 states have internal predecessors, (2528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,202 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,205 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,205 INFO L175 Difference]: Start difference. First operand has 95 places, 83 transitions, 290 flow. Second operand 6 states and 2528 transitions. [2023-11-19 07:56:12,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 126 transitions, 610 flow [2023-11-19 07:56:12,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 126 transitions, 592 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:56:12,210 INFO L231 Difference]: Finished difference. Result has 94 places, 82 transitions, 288 flow [2023-11-19 07:56:12,210 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=288, PETRI_PLACES=94, PETRI_TRANSITIONS=82} [2023-11-19 07:56:12,211 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -7 predicate places. [2023-11-19 07:56:12,211 INFO L495 AbstractCegarLoop]: Abstraction has has 94 places, 82 transitions, 288 flow [2023-11-19 07:56:12,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 412.0) internal successors, (2472), 6 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:12,212 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:12,213 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:12,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:56:12,213 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:12,213 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:12,214 INFO L85 PathProgramCache]: Analyzing trace with hash 310719155, now seen corresponding path program 1 times [2023-11-19 07:56:12,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:12,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629743129] [2023-11-19 07:56:12,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:12,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:12,861 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:56:12,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:12,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629743129] [2023-11-19 07:56:12,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629743129] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:12,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:12,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:56:12,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661805422] [2023-11-19 07:56:12,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:12,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:12,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:12,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:12,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:13,254 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 898 [2023-11-19 07:56:13,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 82 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 412.3333333333333) internal successors, (2474), 6 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:13,256 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:13,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 898 [2023-11-19 07:56:13,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:13,617 INFO L124 PetriNetUnfolderBase]: 503/1403 cut-off events. [2023-11-19 07:56:13,617 INFO L125 PetriNetUnfolderBase]: For 219/292 co-relation queries the response was YES. [2023-11-19 07:56:13,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2832 conditions, 1403 events. 503/1403 cut-off events. For 219/292 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 8478 event pairs, 295 based on Foata normal form. 0/1353 useless extension candidates. Maximal degree in co-relation 2817. Up to 671 conditions per place. [2023-11-19 07:56:13,638 INFO L140 encePairwiseOnDemand]: 893/898 looper letters, 85 selfloop transitions, 4 changer transitions 8/129 dead transitions. [2023-11-19 07:56:13,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 129 transitions, 628 flow [2023-11-19 07:56:13,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:13,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:56:13,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2532 transitions. [2023-11-19 07:56:13,649 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46993318485523383 [2023-11-19 07:56:13,650 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2532 transitions. [2023-11-19 07:56:13,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2532 transitions. [2023-11-19 07:56:13,652 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:13,652 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2532 transitions. [2023-11-19 07:56:13,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 422.0) internal successors, (2532), 6 states have internal predecessors, (2532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:13,669 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:13,672 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:13,672 INFO L175 Difference]: Start difference. First operand has 94 places, 82 transitions, 288 flow. Second operand 6 states and 2532 transitions. [2023-11-19 07:56:13,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 129 transitions, 628 flow [2023-11-19 07:56:13,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 129 transitions, 602 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:56:13,677 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 284 flow [2023-11-19 07:56:13,678 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=284, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2023-11-19 07:56:13,678 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -8 predicate places. [2023-11-19 07:56:13,679 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 284 flow [2023-11-19 07:56:13,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 412.3333333333333) internal successors, (2474), 6 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:13,680 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:13,680 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2023-11-19 07:56:13,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-19 07:56:13,681 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:13,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:13,681 INFO L85 PathProgramCache]: Analyzing trace with hash -184087820, now seen corresponding path program 1 times [2023-11-19 07:56:13,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:13,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412292918] [2023-11-19 07:56:13,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:13,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:13,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:14,246 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:56:14,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:14,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412292918] [2023-11-19 07:56:14,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412292918] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:14,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:14,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:56:14,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398235683] [2023-11-19 07:56:14,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:14,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:14,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:14,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:14,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:14,646 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 898 [2023-11-19 07:56:14,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 284 flow. Second operand has 6 states, 6 states have (on average 412.1666666666667) internal successors, (2473), 6 states have internal predecessors, (2473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:14,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:14,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 898 [2023-11-19 07:56:14,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:15,012 INFO L124 PetriNetUnfolderBase]: 492/1375 cut-off events. [2023-11-19 07:56:15,012 INFO L125 PetriNetUnfolderBase]: For 180/253 co-relation queries the response was YES. [2023-11-19 07:56:15,018 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2684 conditions, 1375 events. 492/1375 cut-off events. For 180/253 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 8107 event pairs, 277 based on Foata normal form. 0/1335 useless extension candidates. Maximal degree in co-relation 2669. Up to 631 conditions per place. [2023-11-19 07:56:15,022 INFO L140 encePairwiseOnDemand]: 892/898 looper letters, 69 selfloop transitions, 5 changer transitions 18/120 dead transitions. [2023-11-19 07:56:15,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 120 transitions, 574 flow [2023-11-19 07:56:15,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:15,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:56:15,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2527 transitions. [2023-11-19 07:56:15,031 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4690051967334818 [2023-11-19 07:56:15,031 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2527 transitions. [2023-11-19 07:56:15,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2527 transitions. [2023-11-19 07:56:15,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:15,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2527 transitions. [2023-11-19 07:56:15,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 421.1666666666667) internal successors, (2527), 6 states have internal predecessors, (2527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:15,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:15,051 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:15,051 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 284 flow. Second operand 6 states and 2527 transitions. [2023-11-19 07:56:15,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 120 transitions, 574 flow [2023-11-19 07:56:15,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 120 transitions, 559 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 07:56:15,056 INFO L231 Difference]: Finished difference. Result has 93 places, 74 transitions, 271 flow [2023-11-19 07:56:15,056 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=275, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=271, PETRI_PLACES=93, PETRI_TRANSITIONS=74} [2023-11-19 07:56:15,057 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -8 predicate places. [2023-11-19 07:56:15,057 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 74 transitions, 271 flow [2023-11-19 07:56:15,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 412.1666666666667) internal successors, (2473), 6 states have internal predecessors, (2473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:15,058 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 07:56:15,058 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2023-11-19 07:56:15,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-19 07:56:15,059 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 56 more)] === [2023-11-19 07:56:15,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:15,059 INFO L85 PathProgramCache]: Analyzing trace with hash -493466276, now seen corresponding path program 1 times [2023-11-19 07:56:15,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:15,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43049624] [2023-11-19 07:56:15,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:15,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:15,583 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 07:56:15,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:56:15,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43049624] [2023-11-19 07:56:15,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43049624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:56:15,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:56:15,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:56:15,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555117204] [2023-11-19 07:56:15,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:56:15,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:56:15,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:56:15,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:56:15,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:56:15,979 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 409 out of 898 [2023-11-19 07:56:15,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 74 transitions, 271 flow. Second operand has 6 states, 6 states have (on average 411.6666666666667) internal successors, (2470), 6 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:15,982 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 07:56:15,982 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 409 of 898 [2023-11-19 07:56:15,982 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 07:56:16,401 INFO L124 PetriNetUnfolderBase]: 523/1308 cut-off events. [2023-11-19 07:56:16,401 INFO L125 PetriNetUnfolderBase]: For 178/184 co-relation queries the response was YES. [2023-11-19 07:56:16,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2665 conditions, 1308 events. 523/1308 cut-off events. For 178/184 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 7261 event pairs, 279 based on Foata normal form. 0/1268 useless extension candidates. Maximal degree in co-relation 2650. Up to 625 conditions per place. [2023-11-19 07:56:16,409 INFO L140 encePairwiseOnDemand]: 892/898 looper letters, 0 selfloop transitions, 0 changer transitions 129/129 dead transitions. [2023-11-19 07:56:16,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 129 transitions, 631 flow [2023-11-19 07:56:16,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:56:16,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-19 07:56:16,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2542 transitions. [2023-11-19 07:56:16,421 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4717891610987379 [2023-11-19 07:56:16,421 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2542 transitions. [2023-11-19 07:56:16,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2542 transitions. [2023-11-19 07:56:16,424 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:16,424 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2542 transitions. [2023-11-19 07:56:16,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 423.6666666666667) internal successors, (2542), 6 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:16,441 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:16,444 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 898.0) internal successors, (6286), 7 states have internal predecessors, (6286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:16,444 INFO L175 Difference]: Start difference. First operand has 93 places, 74 transitions, 271 flow. Second operand 6 states and 2542 transitions. [2023-11-19 07:56:16,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 129 transitions, 631 flow [2023-11-19 07:56:16,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 129 transitions, 605 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-19 07:56:16,448 INFO L231 Difference]: Finished difference. Result has 85 places, 0 transitions, 0 flow [2023-11-19 07:56:16,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=898, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=85, PETRI_TRANSITIONS=0} [2023-11-19 07:56:16,450 INFO L281 CegarLoopForPetriNet]: 101 programPoint places, -16 predicate places. [2023-11-19 07:56:16,450 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 0 transitions, 0 flow [2023-11-19 07:56:16,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 411.6666666666667) internal successors, (2470), 6 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:16,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (59 of 60 remaining) [2023-11-19 07:56:16,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (58 of 60 remaining) [2023-11-19 07:56:16,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (57 of 60 remaining) [2023-11-19 07:56:16,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (56 of 60 remaining) [2023-11-19 07:56:16,455 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (55 of 60 remaining) [2023-11-19 07:56:16,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (54 of 60 remaining) [2023-11-19 07:56:16,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (53 of 60 remaining) [2023-11-19 07:56:16,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (52 of 60 remaining) [2023-11-19 07:56:16,456 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (51 of 60 remaining) [2023-11-19 07:56:16,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (50 of 60 remaining) [2023-11-19 07:56:16,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (49 of 60 remaining) [2023-11-19 07:56:16,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (48 of 60 remaining) [2023-11-19 07:56:16,457 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (47 of 60 remaining) [2023-11-19 07:56:16,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (46 of 60 remaining) [2023-11-19 07:56:16,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (45 of 60 remaining) [2023-11-19 07:56:16,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (44 of 60 remaining) [2023-11-19 07:56:16,458 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (43 of 60 remaining) [2023-11-19 07:56:16,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (42 of 60 remaining) [2023-11-19 07:56:16,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (41 of 60 remaining) [2023-11-19 07:56:16,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (40 of 60 remaining) [2023-11-19 07:56:16,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (39 of 60 remaining) [2023-11-19 07:56:16,459 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (38 of 60 remaining) [2023-11-19 07:56:16,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 60 remaining) [2023-11-19 07:56:16,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 60 remaining) [2023-11-19 07:56:16,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 60 remaining) [2023-11-19 07:56:16,460 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 60 remaining) [2023-11-19 07:56:16,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 60 remaining) [2023-11-19 07:56:16,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 60 remaining) [2023-11-19 07:56:16,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 60 remaining) [2023-11-19 07:56:16,461 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 60 remaining) [2023-11-19 07:56:16,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 60 remaining) [2023-11-19 07:56:16,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 60 remaining) [2023-11-19 07:56:16,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 60 remaining) [2023-11-19 07:56:16,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (26 of 60 remaining) [2023-11-19 07:56:16,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (25 of 60 remaining) [2023-11-19 07:56:16,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (24 of 60 remaining) [2023-11-19 07:56:16,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 60 remaining) [2023-11-19 07:56:16,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 60 remaining) [2023-11-19 07:56:16,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (21 of 60 remaining) [2023-11-19 07:56:16,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (20 of 60 remaining) [2023-11-19 07:56:16,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (19 of 60 remaining) [2023-11-19 07:56:16,464 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (18 of 60 remaining) [2023-11-19 07:56:16,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (17 of 60 remaining) [2023-11-19 07:56:16,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (16 of 60 remaining) [2023-11-19 07:56:16,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (15 of 60 remaining) [2023-11-19 07:56:16,465 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (14 of 60 remaining) [2023-11-19 07:56:16,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (13 of 60 remaining) [2023-11-19 07:56:16,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (12 of 60 remaining) [2023-11-19 07:56:16,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (11 of 60 remaining) [2023-11-19 07:56:16,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 60 remaining) [2023-11-19 07:56:16,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 60 remaining) [2023-11-19 07:56:16,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 60 remaining) [2023-11-19 07:56:16,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 60 remaining) [2023-11-19 07:56:16,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (6 of 60 remaining) [2023-11-19 07:56:16,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (5 of 60 remaining) [2023-11-19 07:56:16,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (4 of 60 remaining) [2023-11-19 07:56:16,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (3 of 60 remaining) [2023-11-19 07:56:16,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (2 of 60 remaining) [2023-11-19 07:56:16,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (1 of 60 remaining) [2023-11-19 07:56:16,469 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (0 of 60 remaining) [2023-11-19 07:56:16,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:56:16,470 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:16,476 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 07:56:16,476 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:56:16,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:56:16 BasicIcfg [2023-11-19 07:56:16,481 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:56:16,481 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:56:16,482 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:56:16,483 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:56:16,483 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:48" (3/4) ... [2023-11-19 07:56:16,486 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:56:16,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-19 07:56:16,490 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-19 07:56:16,498 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2023-11-19 07:56:16,499 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 07:56:16,500 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 07:56:16,501 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:56:16,633 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:56:16,636 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:56:16,636 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:56:16,637 INFO L158 Benchmark]: Toolchain (without parser) took 29194.89ms. Allocated memory was 169.9MB in the beginning and 478.2MB in the end (delta: 308.3MB). Free memory was 122.4MB in the beginning and 367.8MB in the end (delta: -245.4MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2023-11-19 07:56:16,637 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 169.9MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:56:16,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.77ms. Allocated memory is still 169.9MB. Free memory was 122.0MB in the beginning and 109.2MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:56:16,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.76ms. Allocated memory is still 169.9MB. Free memory was 109.2MB in the beginning and 106.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:56:16,638 INFO L158 Benchmark]: Boogie Preprocessor took 97.05ms. Allocated memory is still 169.9MB. Free memory was 106.0MB in the beginning and 103.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 07:56:16,638 INFO L158 Benchmark]: RCFGBuilder took 968.53ms. Allocated memory is still 169.9MB. Free memory was 103.1MB in the beginning and 111.1MB in the end (delta: -8.0MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2023-11-19 07:56:16,639 INFO L158 Benchmark]: TraceAbstraction took 27492.83ms. Allocated memory was 169.9MB in the beginning and 478.2MB in the end (delta: 308.3MB). Free memory was 111.1MB in the beginning and 374.1MB in the end (delta: -263.0MB). Peak memory consumption was 219.9MB. Max. memory is 16.1GB. [2023-11-19 07:56:16,639 INFO L158 Benchmark]: Witness Printer took 154.68ms. Allocated memory is still 478.2MB. Free memory was 374.1MB in the beginning and 367.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:56:16,641 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 169.9MB. Free memory is still 143.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.77ms. Allocated memory is still 169.9MB. Free memory was 122.0MB in the beginning and 109.2MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.76ms. Allocated memory is still 169.9MB. Free memory was 109.2MB in the beginning and 106.0MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.05ms. Allocated memory is still 169.9MB. Free memory was 106.0MB in the beginning and 103.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 968.53ms. Allocated memory is still 169.9MB. Free memory was 103.1MB in the beginning and 111.1MB in the end (delta: -8.0MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * TraceAbstraction took 27492.83ms. Allocated memory was 169.9MB in the beginning and 478.2MB in the end (delta: 308.3MB). Free memory was 111.1MB in the beginning and 374.1MB in the end (delta: -263.0MB). Peak memory consumption was 219.9MB. Max. memory is 16.1GB. * Witness Printer took 154.68ms. Allocated memory is still 478.2MB. Free memory was 374.1MB in the beginning and 367.8MB 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.6s, 406 PlacesBefore, 101 PlacesAfterwards, 423 TransitionsBefore, 100 TransitionsAfterwards, 28496 CoEnabledTransitionPairs, 7 FixpointIterations, 194 TrivialSequentialCompositions, 183 ConcurrentSequentialCompositions, 31 TrivialYvCompositions, 23 ConcurrentYvCompositions, 18 ChoiceCompositions, 449 TotalNumberOfCompositions, 77032 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31319, independent: 30426, independent conditional: 0, independent unconditional: 30426, dependent: 893, dependent conditional: 0, dependent unconditional: 893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 15293, independent: 15181, independent conditional: 0, independent unconditional: 15181, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 31319, independent: 15245, independent conditional: 0, independent unconditional: 15245, dependent: 781, dependent conditional: 0, dependent unconditional: 781, unknown: 15293, unknown conditional: 0, unknown unconditional: 15293] , Statistics on independence cache: Total cache size (in pairs): 958, Positive cache size: 885, Positive conditional cache size: 0, Positive unconditional cache size: 885, Negative cache size: 73, Negative conditional cache size: 0, Negative unconditional cache size: 73, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 63]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: 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: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 79]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 80]: 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: 82]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: 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: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 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, 624 locations, 60 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: 27.2s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 11.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2052 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1311 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 653 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4496 IncrementalHoareTripleChecker+Invalid, 5149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 653 mSolverCounterUnsat, 59 mSDtfsCounter, 4496 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 87 SyntacticMatches, 4 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=306occurred in iteration=9, InterpolantAutomatonStates: 67, 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: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 322 NumberOfCodeBlocks, 314 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 340 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 2 NumberOfNonLiveVariables, 662 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 19 InterpolantComputations, 12 PerfectInterpolantSequences, 233/276 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 36 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 07:56:16,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5f1f4de-e87f-49a3-bd65-c956e83f8a57/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE