./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya --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 47827fdca8ccc83dae99015d656cdcf2872ea585121905304e5ffb2ef40b4eac --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:42:58,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:42:58,807 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 03:42:58,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:42:58,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:42:58,839 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:42:58,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:42:58,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:42:58,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:42:58,842 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:42:58,842 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:42:58,843 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:42:58,843 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:42:58,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:42:58,844 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:42:58,845 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:42:58,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:42:58,846 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:42:58,846 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:42:58,847 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:42:58,847 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:42:58,848 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:42:58,849 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 03:42:58,849 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:42:58,850 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:42:58,850 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:42:58,851 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:42:58,851 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:42:58,852 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:42:58,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:42:58,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:42:58,853 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:42:58,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:42:58,854 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:42:58,854 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:42:58,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:42:58,854 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:42:58,855 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:42:58,855 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:42:58,855 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:42:58,855 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:42:58,856 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_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47827fdca8ccc83dae99015d656cdcf2872ea585121905304e5ffb2ef40b4eac [2023-11-29 03:42:59,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:42:59,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:42:59,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:42:59,080 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:42:59,080 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:42:59,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i [2023-11-29 03:43:01,836 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:43:02,066 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:43:02,067 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-outer-race.i [2023-11-29 03:43:02,081 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/data/0b920c529/34ce1c2532c541cf886b76637587ae02/FLAG2625274fe [2023-11-29 03:43:02,093 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/data/0b920c529/34ce1c2532c541cf886b76637587ae02 [2023-11-29 03:43:02,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:43:02,096 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:43:02,097 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:43:02,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:43:02,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:43:02,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f43d2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02, skipping insertion in model container [2023-11-29 03:43:02,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,146 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:43:02,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:43:02,457 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:43:02,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:43:02,526 WARN L675 CHandler]: The function pthread_detach is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:43:02,534 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:43:02,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02 WrapperNode [2023-11-29 03:43:02,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:43:02,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:43:02,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:43:02,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:43:02,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,580 INFO L138 Inliner]: procedures = 160, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 68 [2023-11-29 03:43:02,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:43:02,581 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:43:02,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:43:02,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:43:02,591 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,594 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,594 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,601 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,607 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:43:02,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:43:02,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:43:02,611 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:43:02,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (1/1) ... [2023-11-29 03:43:02,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:43:02,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:43:02,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:43:02,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:43:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 03:43:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 03:43:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 03:43:02,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:43:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:43:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:43:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2023-11-29 03:43:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 03:43:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-29 03:43:02,666 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-29 03:43:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 03:43:02,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:43:02,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:43:02,668 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 03:43:02,775 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:43:02,776 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:43:02,924 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:43:02,941 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:43:02,941 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 03:43:02,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:43:02 BoogieIcfgContainer [2023-11-29 03:43:02,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:43:02,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:43:02,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:43:02,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:43:02,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:43:02" (1/3) ... [2023-11-29 03:43:02,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64af3315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:43:02, skipping insertion in model container [2023-11-29 03:43:02,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:43:02" (2/3) ... [2023-11-29 03:43:02,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64af3315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:43:02, skipping insertion in model container [2023-11-29 03:43:02,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:43:02" (3/3) ... [2023-11-29 03:43:02,952 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-outer-race.i [2023-11-29 03:43:02,960 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 03:43:02,968 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:43:02,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-29 03:43:02,968 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 03:43:03,017 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 03:43:03,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 105 transitions, 214 flow [2023-11-29 03:43:03,100 INFO L124 PetriNetUnfolderBase]: 7/137 cut-off events. [2023-11-29 03:43:03,100 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:43:03,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 137 events. 7/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 181 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 77. Up to 4 conditions per place. [2023-11-29 03:43:03,105 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 105 transitions, 214 flow [2023-11-29 03:43:03,110 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 105 transitions, 214 flow [2023-11-29 03:43:03,136 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:43:03,143 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;@6ddc8e8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:43:03,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-29 03:43:03,152 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 03:43:03,152 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-11-29 03:43:03,152 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:43:03,153 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:03,153 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:03,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 03:43:03,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1236985624, now seen corresponding path program 1 times [2023-11-29 03:43:03,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:03,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040062640] [2023-11-29 03:43:03,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:03,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:03,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:03,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:03,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040062640] [2023-11-29 03:43:03,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040062640] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:03,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:03,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:43:03,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258961156] [2023-11-29 03:43:03,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:03,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:43:03,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:03,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:43:03,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:43:03,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2023-11-29 03:43:03,456 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 105 transitions, 214 flow. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,456 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:03,456 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2023-11-29 03:43:03,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:03,545 INFO L124 PetriNetUnfolderBase]: 32/303 cut-off events. [2023-11-29 03:43:03,545 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 03:43:03,547 INFO L83 FinitePrefix]: Finished finitePrefix Result has 390 conditions, 303 events. 32/303 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1192 event pairs, 7 based on Foata normal form. 5/272 useless extension candidates. Maximal degree in co-relation 320. Up to 59 conditions per place. [2023-11-29 03:43:03,549 INFO L140 encePairwiseOnDemand]: 91/105 looper letters, 16 selfloop transitions, 8 changer transitions 1/112 dead transitions. [2023-11-29 03:43:03,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 112 transitions, 276 flow [2023-11-29 03:43:03,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:43:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:43:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2023-11-29 03:43:03,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9396825396825397 [2023-11-29 03:43:03,564 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 296 transitions. [2023-11-29 03:43:03,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 296 transitions. [2023-11-29 03:43:03,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:03,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 296 transitions. [2023-11-29 03:43:03,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,578 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,580 INFO L175 Difference]: Start difference. First operand has 104 places, 105 transitions, 214 flow. Second operand 3 states and 296 transitions. [2023-11-29 03:43:03,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 112 transitions, 276 flow [2023-11-29 03:43:03,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 112 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 03:43:03,588 INFO L231 Difference]: Finished difference. Result has 108 places, 109 transitions, 276 flow [2023-11-29 03:43:03,591 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=276, PETRI_PLACES=108, PETRI_TRANSITIONS=109} [2023-11-29 03:43:03,594 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 4 predicate places. [2023-11-29 03:43:03,595 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 109 transitions, 276 flow [2023-11-29 03:43:03,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:03,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:03,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:43:03,596 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 03:43:03,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:03,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1450006439, now seen corresponding path program 1 times [2023-11-29 03:43:03,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:03,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601467267] [2023-11-29 03:43:03,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:03,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:03,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:03,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:03,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601467267] [2023-11-29 03:43:03,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601467267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:03,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:03,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:43:03,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849753980] [2023-11-29 03:43:03,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:03,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:43:03,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:03,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:43:03,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:43:03,674 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 105 [2023-11-29 03:43:03,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 109 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:03,675 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 105 [2023-11-29 03:43:03,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:03,737 INFO L124 PetriNetUnfolderBase]: 27/307 cut-off events. [2023-11-29 03:43:03,737 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-11-29 03:43:03,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 307 events. 27/307 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1341 event pairs, 6 based on Foata normal form. 0/278 useless extension candidates. Maximal degree in co-relation 356. Up to 45 conditions per place. [2023-11-29 03:43:03,740 INFO L140 encePairwiseOnDemand]: 101/105 looper letters, 8 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2023-11-29 03:43:03,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 113 transitions, 306 flow [2023-11-29 03:43:03,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:43:03,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:43:03,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 297 transitions. [2023-11-29 03:43:03,743 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9428571428571428 [2023-11-29 03:43:03,743 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 297 transitions. [2023-11-29 03:43:03,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 297 transitions. [2023-11-29 03:43:03,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:03,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 297 transitions. [2023-11-29 03:43:03,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.0) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,748 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,748 INFO L175 Difference]: Start difference. First operand has 108 places, 109 transitions, 276 flow. Second operand 3 states and 297 transitions. [2023-11-29 03:43:03,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 113 transitions, 306 flow [2023-11-29 03:43:03,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 113 transitions, 290 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:43:03,754 INFO L231 Difference]: Finished difference. Result has 109 places, 111 transitions, 282 flow [2023-11-29 03:43:03,754 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=109, PETRI_TRANSITIONS=111} [2023-11-29 03:43:03,755 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 5 predicate places. [2023-11-29 03:43:03,755 INFO L495 AbstractCegarLoop]: Abstraction has has 109 places, 111 transitions, 282 flow [2023-11-29 03:43:03,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,756 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:03,756 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:03,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:43:03,757 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 03:43:03,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:03,757 INFO L85 PathProgramCache]: Analyzing trace with hash 479277775, now seen corresponding path program 1 times [2023-11-29 03:43:03,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:03,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885541083] [2023-11-29 03:43:03,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:03,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:03,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:03,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:03,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885541083] [2023-11-29 03:43:03,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885541083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:03,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:03,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:43:03,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552866821] [2023-11-29 03:43:03,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:03,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:43:03,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:03,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:43:03,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:43:03,844 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2023-11-29 03:43:03,845 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 111 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,845 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:03,845 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2023-11-29 03:43:03,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:03,968 INFO L124 PetriNetUnfolderBase]: 54/466 cut-off events. [2023-11-29 03:43:03,968 INFO L125 PetriNetUnfolderBase]: For 65/87 co-relation queries the response was YES. [2023-11-29 03:43:03,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 719 conditions, 466 events. 54/466 cut-off events. For 65/87 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2530 event pairs, 23 based on Foata normal form. 4/421 useless extension candidates. Maximal degree in co-relation 637. Up to 104 conditions per place. [2023-11-29 03:43:03,973 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 19 selfloop transitions, 7 changer transitions 0/118 dead transitions. [2023-11-29 03:43:03,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 118 transitions, 354 flow [2023-11-29 03:43:03,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:43:03,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:43:03,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2023-11-29 03:43:03,976 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9047619047619048 [2023-11-29 03:43:03,976 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 285 transitions. [2023-11-29 03:43:03,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 285 transitions. [2023-11-29 03:43:03,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:03,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 285 transitions. [2023-11-29 03:43:03,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,981 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,981 INFO L175 Difference]: Start difference. First operand has 109 places, 111 transitions, 282 flow. Second operand 3 states and 285 transitions. [2023-11-29 03:43:03,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 118 transitions, 354 flow [2023-11-29 03:43:03,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 118 transitions, 348 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:43:03,987 INFO L231 Difference]: Finished difference. Result has 111 places, 116 transitions, 332 flow [2023-11-29 03:43:03,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=111, PETRI_TRANSITIONS=116} [2023-11-29 03:43:03,989 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 7 predicate places. [2023-11-29 03:43:03,989 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 116 transitions, 332 flow [2023-11-29 03:43:03,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:03,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:03,990 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:03,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:43:03,991 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 03:43:03,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:03,991 INFO L85 PathProgramCache]: Analyzing trace with hash 81021741, now seen corresponding path program 1 times [2023-11-29 03:43:03,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:03,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308646488] [2023-11-29 03:43:03,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:03,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:04,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:04,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:04,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308646488] [2023-11-29 03:43:04,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308646488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:04,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:04,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:43:04,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422651325] [2023-11-29 03:43:04,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:04,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:43:04,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:43:04,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:43:04,552 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 105 [2023-11-29 03:43:04,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 116 transitions, 332 flow. Second operand has 6 states, 6 states have (on average 89.33333333333333) internal successors, (536), 6 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,554 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:04,554 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 105 [2023-11-29 03:43:04,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:04,667 INFO L124 PetriNetUnfolderBase]: 51/499 cut-off events. [2023-11-29 03:43:04,667 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2023-11-29 03:43:04,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 759 conditions, 499 events. 51/499 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2599 event pairs, 12 based on Foata normal form. 0/455 useless extension candidates. Maximal degree in co-relation 676. Up to 62 conditions per place. [2023-11-29 03:43:04,671 INFO L140 encePairwiseOnDemand]: 99/105 looper letters, 16 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2023-11-29 03:43:04,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 123 transitions, 388 flow [2023-11-29 03:43:04,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:43:04,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:43:04,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 550 transitions. [2023-11-29 03:43:04,674 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.873015873015873 [2023-11-29 03:43:04,674 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 550 transitions. [2023-11-29 03:43:04,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 550 transitions. [2023-11-29 03:43:04,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:04,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 550 transitions. [2023-11-29 03:43:04,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 91.66666666666667) internal successors, (550), 6 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,679 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,680 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 105.0) internal successors, (735), 7 states have internal predecessors, (735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,680 INFO L175 Difference]: Start difference. First operand has 111 places, 116 transitions, 332 flow. Second operand 6 states and 550 transitions. [2023-11-29 03:43:04,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 123 transitions, 388 flow [2023-11-29 03:43:04,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 123 transitions, 374 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:43:04,686 INFO L231 Difference]: Finished difference. Result has 113 places, 115 transitions, 326 flow [2023-11-29 03:43:04,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=113, PETRI_TRANSITIONS=115} [2023-11-29 03:43:04,687 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 9 predicate places. [2023-11-29 03:43:04,687 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 115 transitions, 326 flow [2023-11-29 03:43:04,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.33333333333333) internal successors, (536), 6 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,688 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:04,688 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:04,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:43:04,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 03:43:04,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:04,689 INFO L85 PathProgramCache]: Analyzing trace with hash 455116739, now seen corresponding path program 1 times [2023-11-29 03:43:04,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:04,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707842243] [2023-11-29 03:43:04,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:04,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:04,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:04,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707842243] [2023-11-29 03:43:04,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707842243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:04,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:04,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:43:04,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27569551] [2023-11-29 03:43:04,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:04,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:43:04,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:04,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:43:04,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:43:04,744 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 105 [2023-11-29 03:43:04,745 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 115 transitions, 326 flow. Second operand has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,745 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:04,745 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 105 [2023-11-29 03:43:04,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:04,799 INFO L124 PetriNetUnfolderBase]: 35/369 cut-off events. [2023-11-29 03:43:04,800 INFO L125 PetriNetUnfolderBase]: For 36/43 co-relation queries the response was YES. [2023-11-29 03:43:04,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 559 conditions, 369 events. 35/369 cut-off events. For 36/43 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1931 event pairs, 9 based on Foata normal form. 0/336 useless extension candidates. Maximal degree in co-relation 482. Up to 51 conditions per place. [2023-11-29 03:43:04,802 INFO L140 encePairwiseOnDemand]: 100/105 looper letters, 8 selfloop transitions, 5 changer transitions 0/118 dead transitions. [2023-11-29 03:43:04,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 118 transitions, 360 flow [2023-11-29 03:43:04,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:43:04,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:43:04,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2023-11-29 03:43:04,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.926984126984127 [2023-11-29 03:43:04,804 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 292 transitions. [2023-11-29 03:43:04,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 292 transitions. [2023-11-29 03:43:04,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:04,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 292 transitions. [2023-11-29 03:43:04,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.33333333333333) internal successors, (292), 3 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,808 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,808 INFO L175 Difference]: Start difference. First operand has 113 places, 115 transitions, 326 flow. Second operand 3 states and 292 transitions. [2023-11-29 03:43:04,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 118 transitions, 360 flow [2023-11-29 03:43:04,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 350 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:43:04,813 INFO L231 Difference]: Finished difference. Result has 112 places, 118 transitions, 352 flow [2023-11-29 03:43:04,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=112, PETRI_TRANSITIONS=118} [2023-11-29 03:43:04,814 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 8 predicate places. [2023-11-29 03:43:04,814 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 118 transitions, 352 flow [2023-11-29 03:43:04,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 94.66666666666667) internal successors, (284), 3 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,815 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:04,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:04,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:43:04,815 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 03:43:04,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:04,816 INFO L85 PathProgramCache]: Analyzing trace with hash 188547963, now seen corresponding path program 1 times [2023-11-29 03:43:04,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:04,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486707080] [2023-11-29 03:43:04,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:04,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:04,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:04,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486707080] [2023-11-29 03:43:04,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486707080] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:04,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:04,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:43:04,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301711643] [2023-11-29 03:43:04,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:04,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:43:04,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:04,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:43:04,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:43:04,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 105 [2023-11-29 03:43:04,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 118 transitions, 352 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:04,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 105 [2023-11-29 03:43:04,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:04,954 INFO L124 PetriNetUnfolderBase]: 64/488 cut-off events. [2023-11-29 03:43:04,955 INFO L125 PetriNetUnfolderBase]: For 160/184 co-relation queries the response was YES. [2023-11-29 03:43:04,956 INFO L83 FinitePrefix]: Finished finitePrefix Result has 889 conditions, 488 events. 64/488 cut-off events. For 160/184 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2800 event pairs, 13 based on Foata normal form. 1/451 useless extension candidates. Maximal degree in co-relation 805. Up to 109 conditions per place. [2023-11-29 03:43:04,958 INFO L140 encePairwiseOnDemand]: 98/105 looper letters, 16 selfloop transitions, 11 changer transitions 1/125 dead transitions. [2023-11-29 03:43:04,958 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 125 transitions, 434 flow [2023-11-29 03:43:04,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:43:04,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:43:04,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2023-11-29 03:43:04,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9142857142857143 [2023-11-29 03:43:04,960 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2023-11-29 03:43:04,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2023-11-29 03:43:04,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:04,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2023-11-29 03:43:04,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,963 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,963 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 105.0) internal successors, (420), 4 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,963 INFO L175 Difference]: Start difference. First operand has 112 places, 118 transitions, 352 flow. Second operand 3 states and 288 transitions. [2023-11-29 03:43:04,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 125 transitions, 434 flow [2023-11-29 03:43:04,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 125 transitions, 424 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:43:04,968 INFO L231 Difference]: Finished difference. Result has 114 places, 124 transitions, 426 flow [2023-11-29 03:43:04,968 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=105, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=114, PETRI_TRANSITIONS=124} [2023-11-29 03:43:04,969 INFO L281 CegarLoopForPetriNet]: 104 programPoint places, 10 predicate places. [2023-11-29 03:43:04,969 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 124 transitions, 426 flow [2023-11-29 03:43:04,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:04,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:04,970 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:04,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 03:43:04,970 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-11-29 03:43:04,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:04,971 INFO L85 PathProgramCache]: Analyzing trace with hash 368128124, now seen corresponding path program 1 times [2023-11-29 03:43:04,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:04,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600760386] [2023-11-29 03:43:04,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:04,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:43:04,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:43:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:43:05,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:43:05,037 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:43:05,038 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2023-11-29 03:43:05,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-11-29 03:43:05,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-11-29 03:43:05,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-11-29 03:43:05,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-11-29 03:43:05,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-11-29 03:43:05,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-11-29 03:43:05,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-11-29 03:43:05,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-11-29 03:43:05,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-11-29 03:43:05,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-11-29 03:43:05,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-11-29 03:43:05,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:43:05,042 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:05,045 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 03:43:05,045 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 03:43:05,068 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 03:43:05,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 134 places, 133 transitions, 276 flow [2023-11-29 03:43:05,111 INFO L124 PetriNetUnfolderBase]: 10/215 cut-off events. [2023-11-29 03:43:05,111 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 03:43:05,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 215 events. 10/215 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 313 event pairs, 0 based on Foata normal form. 0/182 useless extension candidates. Maximal degree in co-relation 138. Up to 6 conditions per place. [2023-11-29 03:43:05,112 INFO L82 GeneralOperation]: Start removeDead. Operand has 134 places, 133 transitions, 276 flow [2023-11-29 03:43:05,114 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 134 places, 133 transitions, 276 flow [2023-11-29 03:43:05,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:43:05,116 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;@6ddc8e8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:43:05,116 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-29 03:43:05,119 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 03:43:05,119 INFO L124 PetriNetUnfolderBase]: 2/31 cut-off events. [2023-11-29 03:43:05,120 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 03:43:05,120 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:05,120 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:05,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 03:43:05,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:05,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1610333315, now seen corresponding path program 1 times [2023-11-29 03:43:05,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:05,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713212007] [2023-11-29 03:43:05,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:05,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:05,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:05,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:05,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:05,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713212007] [2023-11-29 03:43:05,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713212007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:05,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:05,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:43:05,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051391484] [2023-11-29 03:43:05,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:05,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:43:05,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:05,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:43:05,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:43:05,170 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 133 [2023-11-29 03:43:05,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 276 flow. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:05,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:05,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 133 [2023-11-29 03:43:05,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:05,596 INFO L124 PetriNetUnfolderBase]: 563/2385 cut-off events. [2023-11-29 03:43:05,596 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-11-29 03:43:05,601 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3415 conditions, 2385 events. 563/2385 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 19826 event pairs, 195 based on Foata normal form. 38/2128 useless extension candidates. Maximal degree in co-relation 2689. Up to 666 conditions per place. [2023-11-29 03:43:05,615 INFO L140 encePairwiseOnDemand]: 115/133 looper letters, 26 selfloop transitions, 11 changer transitions 1/146 dead transitions. [2023-11-29 03:43:05,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 146 transitions, 381 flow [2023-11-29 03:43:05,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:43:05,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:43:05,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-11-29 03:43:05,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9348370927318296 [2023-11-29 03:43:05,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-11-29 03:43:05,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-11-29 03:43:05,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:05,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-11-29 03:43:05,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:05,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:05,621 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:05,622 INFO L175 Difference]: Start difference. First operand has 134 places, 133 transitions, 276 flow. Second operand 3 states and 373 transitions. [2023-11-29 03:43:05,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 146 transitions, 381 flow [2023-11-29 03:43:05,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 146 transitions, 381 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 03:43:05,626 INFO L231 Difference]: Finished difference. Result has 138 places, 140 transitions, 364 flow [2023-11-29 03:43:05,626 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=364, PETRI_PLACES=138, PETRI_TRANSITIONS=140} [2023-11-29 03:43:05,627 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 4 predicate places. [2023-11-29 03:43:05,627 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 140 transitions, 364 flow [2023-11-29 03:43:05,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:05,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:05,628 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:05,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 03:43:05,628 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 03:43:05,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:05,629 INFO L85 PathProgramCache]: Analyzing trace with hash -912538754, now seen corresponding path program 1 times [2023-11-29 03:43:05,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:05,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163686523] [2023-11-29 03:43:05,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:05,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:05,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:05,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:05,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163686523] [2023-11-29 03:43:05,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163686523] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:05,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:05,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:43:05,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574027894] [2023-11-29 03:43:05,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:05,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:43:05,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:05,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:43:05,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:43:05,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 133 [2023-11-29 03:43:05,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 140 transitions, 364 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:05,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:05,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 133 [2023-11-29 03:43:05,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:06,124 INFO L124 PetriNetUnfolderBase]: 467/2561 cut-off events. [2023-11-29 03:43:06,125 INFO L125 PetriNetUnfolderBase]: For 229/235 co-relation queries the response was YES. [2023-11-29 03:43:06,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3914 conditions, 2561 events. 467/2561 cut-off events. For 229/235 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 23294 event pairs, 170 based on Foata normal form. 0/2292 useless extension candidates. Maximal degree in co-relation 3156. Up to 494 conditions per place. [2023-11-29 03:43:06,149 INFO L140 encePairwiseOnDemand]: 128/133 looper letters, 14 selfloop transitions, 4 changer transitions 0/147 dead transitions. [2023-11-29 03:43:06,150 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 147 transitions, 414 flow [2023-11-29 03:43:06,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:43:06,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:43:06,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 376 transitions. [2023-11-29 03:43:06,152 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9423558897243107 [2023-11-29 03:43:06,152 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 376 transitions. [2023-11-29 03:43:06,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 376 transitions. [2023-11-29 03:43:06,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:06,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 376 transitions. [2023-11-29 03:43:06,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:06,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:06,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:06,157 INFO L175 Difference]: Start difference. First operand has 138 places, 140 transitions, 364 flow. Second operand 3 states and 376 transitions. [2023-11-29 03:43:06,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 147 transitions, 414 flow [2023-11-29 03:43:06,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 147 transitions, 392 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:43:06,165 INFO L231 Difference]: Finished difference. Result has 139 places, 143 transitions, 372 flow [2023-11-29 03:43:06,165 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=372, PETRI_PLACES=139, PETRI_TRANSITIONS=143} [2023-11-29 03:43:06,166 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 5 predicate places. [2023-11-29 03:43:06,166 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 143 transitions, 372 flow [2023-11-29 03:43:06,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:06,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:06,167 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:06,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 03:43:06,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 03:43:06,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:06,167 INFO L85 PathProgramCache]: Analyzing trace with hash -39093041, now seen corresponding path program 1 times [2023-11-29 03:43:06,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:06,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996294774] [2023-11-29 03:43:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:06,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:06,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:06,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:06,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996294774] [2023-11-29 03:43:06,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996294774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:06,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:06,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:43:06,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625098032] [2023-11-29 03:43:06,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:06,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:43:06,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:06,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:43:06,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:43:06,229 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 133 [2023-11-29 03:43:06,229 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 143 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:06,229 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:06,230 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 133 [2023-11-29 03:43:06,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:06,444 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [Black: 145#(= |#race~data~0| 0), 74#L704-1true, 143#true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, 39#L692-2true, 91#L689-3true, 149#true, Black: 137#true]) [2023-11-29 03:43:06,444 INFO L294 olderBase$Statistics]: this new event has 111 ancestors and is cut-off event [2023-11-29 03:43:06,444 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-29 03:43:06,444 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2023-11-29 03:43:06,444 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-29 03:43:06,625 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [8#L691-3true, 74#L704-1true, Black: 145#(= |#race~data~0| 0), 143#true, threadThread1of2ForFork0InUse, 39#L692-2true, threadThread2of2ForFork0InUse, 149#true, Black: 137#true]) [2023-11-29 03:43:06,626 INFO L294 olderBase$Statistics]: this new event has 121 ancestors and is cut-off event [2023-11-29 03:43:06,626 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 03:43:06,626 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 03:43:06,626 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-29 03:43:06,923 INFO L124 PetriNetUnfolderBase]: 1076/4672 cut-off events. [2023-11-29 03:43:06,924 INFO L125 PetriNetUnfolderBase]: For 846/1155 co-relation queries the response was YES. [2023-11-29 03:43:06,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7812 conditions, 4672 events. 1076/4672 cut-off events. For 846/1155 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 46537 event pairs, 538 based on Foata normal form. 39/4075 useless extension candidates. Maximal degree in co-relation 6539. Up to 1374 conditions per place. [2023-11-29 03:43:06,966 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 28 selfloop transitions, 12 changer transitions 0/157 dead transitions. [2023-11-29 03:43:06,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 157 transitions, 496 flow [2023-11-29 03:43:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:43:06,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:43:06,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2023-11-29 03:43:06,969 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9097744360902256 [2023-11-29 03:43:06,969 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 363 transitions. [2023-11-29 03:43:06,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 363 transitions. [2023-11-29 03:43:06,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:06,970 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 363 transitions. [2023-11-29 03:43:06,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:06,975 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:06,976 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:06,976 INFO L175 Difference]: Start difference. First operand has 139 places, 143 transitions, 372 flow. Second operand 3 states and 363 transitions. [2023-11-29 03:43:06,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 157 transitions, 496 flow [2023-11-29 03:43:06,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 157 transitions, 488 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:43:06,982 INFO L231 Difference]: Finished difference. Result has 141 places, 153 transitions, 470 flow [2023-11-29 03:43:06,983 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=364, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=470, PETRI_PLACES=141, PETRI_TRANSITIONS=153} [2023-11-29 03:43:06,985 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 7 predicate places. [2023-11-29 03:43:06,985 INFO L495 AbstractCegarLoop]: Abstraction has has 141 places, 153 transitions, 470 flow [2023-11-29 03:43:06,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:06,986 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:06,986 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:06,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-29 03:43:06,986 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 03:43:06,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:06,987 INFO L85 PathProgramCache]: Analyzing trace with hash -183609747, now seen corresponding path program 1 times [2023-11-29 03:43:06,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:06,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821053141] [2023-11-29 03:43:06,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:06,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:07,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:07,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:07,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821053141] [2023-11-29 03:43:07,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821053141] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:07,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:07,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 03:43:07,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187687180] [2023-11-29 03:43:07,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:07,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:43:07,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:07,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:43:07,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:43:07,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 133 [2023-11-29 03:43:07,426 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 153 transitions, 470 flow. Second operand has 6 states, 6 states have (on average 114.33333333333333) internal successors, (686), 6 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:07,426 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:07,426 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 133 [2023-11-29 03:43:07,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:07,945 INFO L124 PetriNetUnfolderBase]: 832/4349 cut-off events. [2023-11-29 03:43:07,945 INFO L125 PetriNetUnfolderBase]: For 851/922 co-relation queries the response was YES. [2023-11-29 03:43:07,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7168 conditions, 4349 events. 832/4349 cut-off events. For 851/922 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 42060 event pairs, 248 based on Foata normal form. 1/3834 useless extension candidates. Maximal degree in co-relation 5680. Up to 714 conditions per place. [2023-11-29 03:43:07,976 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 27 selfloop transitions, 5 changer transitions 0/168 dead transitions. [2023-11-29 03:43:07,976 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 168 transitions, 564 flow [2023-11-29 03:43:07,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:43:07,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 03:43:07,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 711 transitions. [2023-11-29 03:43:07,979 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8909774436090225 [2023-11-29 03:43:07,979 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 711 transitions. [2023-11-29 03:43:07,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 711 transitions. [2023-11-29 03:43:07,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:07,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 711 transitions. [2023-11-29 03:43:07,982 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 118.5) internal successors, (711), 6 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:07,983 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:07,984 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 133.0) internal successors, (931), 7 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:07,984 INFO L175 Difference]: Start difference. First operand has 141 places, 153 transitions, 470 flow. Second operand 6 states and 711 transitions. [2023-11-29 03:43:07,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 168 transitions, 564 flow [2023-11-29 03:43:07,989 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 168 transitions, 540 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:43:07,991 INFO L231 Difference]: Finished difference. Result has 143 places, 152 transitions, 454 flow [2023-11-29 03:43:07,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=454, PETRI_PLACES=143, PETRI_TRANSITIONS=152} [2023-11-29 03:43:07,992 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 9 predicate places. [2023-11-29 03:43:07,992 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 152 transitions, 454 flow [2023-11-29 03:43:07,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.33333333333333) internal successors, (686), 6 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:07,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:07,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:07,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 03:43:07,993 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 03:43:07,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:07,994 INFO L85 PathProgramCache]: Analyzing trace with hash 841475336, now seen corresponding path program 1 times [2023-11-29 03:43:07,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:07,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683374111] [2023-11-29 03:43:07,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:07,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:08,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:08,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:08,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:08,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683374111] [2023-11-29 03:43:08,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683374111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:08,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:08,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:43:08,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246798872] [2023-11-29 03:43:08,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:08,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:43:08,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:08,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:43:08,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:43:08,036 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 133 [2023-11-29 03:43:08,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 152 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:08,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:08,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 133 [2023-11-29 03:43:08,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:08,479 INFO L124 PetriNetUnfolderBase]: 763/4023 cut-off events. [2023-11-29 03:43:08,479 INFO L125 PetriNetUnfolderBase]: For 694/1034 co-relation queries the response was YES. [2023-11-29 03:43:08,486 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6624 conditions, 4023 events. 763/4023 cut-off events. For 694/1034 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 42136 event pairs, 261 based on Foata normal form. 2/3504 useless extension candidates. Maximal degree in co-relation 5697. Up to 722 conditions per place. [2023-11-29 03:43:08,498 INFO L140 encePairwiseOnDemand]: 127/133 looper letters, 16 selfloop transitions, 7 changer transitions 0/160 dead transitions. [2023-11-29 03:43:08,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 160 transitions, 527 flow [2023-11-29 03:43:08,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:43:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:43:08,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 372 transitions. [2023-11-29 03:43:08,500 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9323308270676691 [2023-11-29 03:43:08,500 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 372 transitions. [2023-11-29 03:43:08,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 372 transitions. [2023-11-29 03:43:08,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:08,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 372 transitions. [2023-11-29 03:43:08,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:08,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:08,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:08,503 INFO L175 Difference]: Start difference. First operand has 143 places, 152 transitions, 454 flow. Second operand 3 states and 372 transitions. [2023-11-29 03:43:08,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 160 transitions, 527 flow [2023-11-29 03:43:08,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 160 transitions, 517 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-29 03:43:08,507 INFO L231 Difference]: Finished difference. Result has 142 places, 157 transitions, 500 flow [2023-11-29 03:43:08,507 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=444, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=500, PETRI_PLACES=142, PETRI_TRANSITIONS=157} [2023-11-29 03:43:08,508 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 8 predicate places. [2023-11-29 03:43:08,508 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 157 transitions, 500 flow [2023-11-29 03:43:08,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:08,508 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:08,508 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:08,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 03:43:08,509 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 03:43:08,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:08,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1617934971, now seen corresponding path program 1 times [2023-11-29 03:43:08,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:08,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192067248] [2023-11-29 03:43:08,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:08,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:08,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:08,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:08,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:08,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192067248] [2023-11-29 03:43:08,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192067248] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:08,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:43:08,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 03:43:08,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036820716] [2023-11-29 03:43:08,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:08,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 03:43:08,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:08,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 03:43:08,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 03:43:08,570 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 133 [2023-11-29 03:43:08,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 157 transitions, 500 flow. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:08,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:08,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 133 [2023-11-29 03:43:08,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:08,822 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [74#L704-1true, Black: 145#(= |#race~data~0| 0), threadThread1of2ForFork0InUse, 162#true, threadThread2of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 39#L692-2true, 91#L689-3true, 168#true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), Black: 137#true]) [2023-11-29 03:43:08,822 INFO L294 olderBase$Statistics]: this new event has 111 ancestors and is cut-off event [2023-11-29 03:43:08,822 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-29 03:43:08,822 INFO L297 olderBase$Statistics]: existing Event has 108 ancestors and is cut-off event [2023-11-29 03:43:08,822 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2023-11-29 03:43:09,006 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [8#L691-3true, 74#L704-1true, Black: 145#(= |#race~data~0| 0), threadThread1of2ForFork0InUse, 162#true, threadThread2of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 39#L692-2true, 168#true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), Black: 137#true]) [2023-11-29 03:43:09,006 INFO L294 olderBase$Statistics]: this new event has 121 ancestors and is cut-off event [2023-11-29 03:43:09,006 INFO L297 olderBase$Statistics]: existing Event has 121 ancestors and is cut-off event [2023-11-29 03:43:09,006 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 03:43:09,006 INFO L297 olderBase$Statistics]: existing Event has 118 ancestors and is cut-off event [2023-11-29 03:43:09,230 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][130], [120#L692-2true, Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, 162#true, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), threadThread2of2ForFork0InUse, 168#true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), 82#L692-7true, Black: 137#true]) [2023-11-29 03:43:09,230 INFO L294 olderBase$Statistics]: this new event has 129 ancestors and is cut-off event [2023-11-29 03:43:09,230 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2023-11-29 03:43:09,230 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-29 03:43:09,230 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-29 03:43:09,313 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [120#L692-2true, 74#L704-1true, Black: 145#(= |#race~data~0| 0), 162#true, threadThread1of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), threadThread2of2ForFork0InUse, 168#true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), 56#L693true, Black: 137#true]) [2023-11-29 03:43:09,313 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2023-11-29 03:43:09,314 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-29 03:43:09,314 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-29 03:43:09,314 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-29 03:43:09,430 INFO L124 PetriNetUnfolderBase]: 1583/6367 cut-off events. [2023-11-29 03:43:09,430 INFO L125 PetriNetUnfolderBase]: For 3302/3725 co-relation queries the response was YES. [2023-11-29 03:43:09,446 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12437 conditions, 6367 events. 1583/6367 cut-off events. For 3302/3725 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 67089 event pairs, 514 based on Foata normal form. 46/5559 useless extension candidates. Maximal degree in co-relation 10316. Up to 1833 conditions per place. [2023-11-29 03:43:09,472 INFO L140 encePairwiseOnDemand]: 124/133 looper letters, 31 selfloop transitions, 19 changer transitions 0/175 dead transitions. [2023-11-29 03:43:09,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 175 transitions, 685 flow [2023-11-29 03:43:09,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 03:43:09,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 03:43:09,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2023-11-29 03:43:09,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9197994987468672 [2023-11-29 03:43:09,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2023-11-29 03:43:09,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2023-11-29 03:43:09,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:09,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2023-11-29 03:43:09,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:09,477 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:09,478 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 133.0) internal successors, (532), 4 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:09,478 INFO L175 Difference]: Start difference. First operand has 142 places, 157 transitions, 500 flow. Second operand 3 states and 367 transitions. [2023-11-29 03:43:09,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 175 transitions, 685 flow [2023-11-29 03:43:09,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 175 transitions, 671 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:43:09,484 INFO L231 Difference]: Finished difference. Result has 144 places, 172 transitions, 668 flow [2023-11-29 03:43:09,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=486, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=668, PETRI_PLACES=144, PETRI_TRANSITIONS=172} [2023-11-29 03:43:09,485 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 10 predicate places. [2023-11-29 03:43:09,485 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 172 transitions, 668 flow [2023-11-29 03:43:09,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:09,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:09,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:09,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 03:43:09,486 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 03:43:09,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:09,487 INFO L85 PathProgramCache]: Analyzing trace with hash 991610689, now seen corresponding path program 1 times [2023-11-29 03:43:09,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:09,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023234104] [2023-11-29 03:43:09,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:09,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:09,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:09,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:43:09,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023234104] [2023-11-29 03:43:09,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023234104] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:43:09,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112852068] [2023-11-29 03:43:09,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:09,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:43:09,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:43:09,601 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:43:09,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:43:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:43:09,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:43:09,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:43:09,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:43:09,865 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:43:09,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112852068] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:43:09,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:43:09,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-29 03:43:09,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008888908] [2023-11-29 03:43:09,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:43:09,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:43:09,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:43:09,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:43:09,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:43:09,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 133 [2023-11-29 03:43:09,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 172 transitions, 668 flow. Second operand has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:09,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 03:43:09,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 133 [2023-11-29 03:43:09,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 03:43:10,767 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][136], [120#L692-2true, Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), threadThread2of2ForFork0InUse, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), 168#true, 82#L692-7true, Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 174#true, Black: 137#true]) [2023-11-29 03:43:10,767 INFO L294 olderBase$Statistics]: this new event has 129 ancestors and is cut-off event [2023-11-29 03:43:10,768 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2023-11-29 03:43:10,768 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-29 03:43:10,768 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-29 03:43:10,769 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][136], [120#L692-2true, 74#L704-1true, Black: 145#(= |#race~data~0| 0), threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 168#true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 82#L692-7true, Black: 137#true, 178#(<= 1 ~threads_alive~0)]) [2023-11-29 03:43:10,769 INFO L294 olderBase$Statistics]: this new event has 129 ancestors and is cut-off event [2023-11-29 03:43:10,769 INFO L297 olderBase$Statistics]: existing Event has 129 ancestors and is cut-off event [2023-11-29 03:43:10,769 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-29 03:43:10,769 INFO L297 olderBase$Statistics]: existing Event has 126 ancestors and is cut-off event [2023-11-29 03:43:10,860 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), 88#L692-1true, threadThread2of2ForFork0InUse, 168#true, 56#L693true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 174#true, Black: 137#true]) [2023-11-29 03:43:10,860 INFO L294 olderBase$Statistics]: this new event has 130 ancestors and is cut-off event [2023-11-29 03:43:10,860 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2023-11-29 03:43:10,860 INFO L297 olderBase$Statistics]: existing Event has 127 ancestors and is cut-off event [2023-11-29 03:43:10,860 INFO L297 olderBase$Statistics]: existing Event has 130 ancestors and is cut-off event [2023-11-29 03:43:10,862 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [120#L692-2true, Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), threadThread2of2ForFork0InUse, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), 168#true, 56#L693true, Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 174#true, Black: 137#true]) [2023-11-29 03:43:10,862 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2023-11-29 03:43:10,862 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-29 03:43:10,862 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-29 03:43:10,863 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-29 03:43:10,912 INFO L292 olderBase$Statistics]: inserting event number 5 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [120#L692-2true, Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), threadThread2of2ForFork0InUse, 168#true, 56#L693true, Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), 174#true, Black: 137#true]) [2023-11-29 03:43:10,912 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2023-11-29 03:43:10,912 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-29 03:43:10,912 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-29 03:43:10,912 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-29 03:43:10,912 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-29 03:43:10,914 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([357] L704-4-->L704-1: Formula: (= 0 |v_#race~threads_alive~0_7|) InVars {} OutVars{#race~threads_alive~0=|v_#race~threads_alive~0_7|} AuxVars[] AssignedVars[#race~threads_alive~0][37], [120#L692-2true, Black: 145#(= |#race~data~0| 0), 74#L704-1true, threadThread1of2ForFork0InUse, threadThread2of2ForFork0InUse, Black: 164#(= |threadThread1of2ForFork0_#t~nondet2| |#race~data~0|), Black: 151#(= |#race~threads_alive~0| |ULTIMATE.start_main_#t~nondet9#1|), 168#true, 56#L693true, Black: 170#(= |threadThread1of2ForFork0_#t~nondet5| |#race~threads_alive~0|), Black: 137#true, 178#(<= 1 ~threads_alive~0)]) [2023-11-29 03:43:10,914 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2023-11-29 03:43:10,914 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-29 03:43:10,914 INFO L297 olderBase$Statistics]: existing Event has 128 ancestors and is cut-off event [2023-11-29 03:43:10,914 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2023-11-29 03:43:11,100 INFO L124 PetriNetUnfolderBase]: 2633/9874 cut-off events. [2023-11-29 03:43:11,101 INFO L125 PetriNetUnfolderBase]: For 7226/8209 co-relation queries the response was YES. [2023-11-29 03:43:11,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21191 conditions, 9874 events. 2633/9874 cut-off events. For 7226/8209 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 113929 event pairs, 393 based on Foata normal form. 104/8795 useless extension candidates. Maximal degree in co-relation 16886. Up to 2221 conditions per place. [2023-11-29 03:43:11,159 INFO L140 encePairwiseOnDemand]: 125/133 looper letters, 36 selfloop transitions, 14 changer transitions 2/207 dead transitions. [2023-11-29 03:43:11,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 207 transitions, 843 flow [2023-11-29 03:43:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:43:11,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-29 03:43:11,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 851 transitions. [2023-11-29 03:43:11,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9140708915145005 [2023-11-29 03:43:11,163 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 851 transitions. [2023-11-29 03:43:11,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 851 transitions. [2023-11-29 03:43:11,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:43:11,164 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 851 transitions. [2023-11-29 03:43:11,166 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 121.57142857142857) internal successors, (851), 7 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:11,168 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 133.0) internal successors, (1064), 8 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:11,169 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 133.0) internal successors, (1064), 8 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:11,169 INFO L175 Difference]: Start difference. First operand has 144 places, 172 transitions, 668 flow. Second operand 7 states and 851 transitions. [2023-11-29 03:43:11,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 207 transitions, 843 flow [2023-11-29 03:43:11,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 207 transitions, 805 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 03:43:11,203 INFO L231 Difference]: Finished difference. Result has 151 places, 185 transitions, 709 flow [2023-11-29 03:43:11,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=133, PETRI_DIFFERENCE_MINUEND_FLOW=624, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=709, PETRI_PLACES=151, PETRI_TRANSITIONS=185} [2023-11-29 03:43:11,204 INFO L281 CegarLoopForPetriNet]: 134 programPoint places, 17 predicate places. [2023-11-29 03:43:11,204 INFO L495 AbstractCegarLoop]: Abstraction has has 151 places, 185 transitions, 709 flow [2023-11-29 03:43:11,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:43:11,204 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 03:43:11,205 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:11,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:43:11,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 03:43:11,405 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-29 03:43:11,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:43:11,406 INFO L85 PathProgramCache]: Analyzing trace with hash 617417073, now seen corresponding path program 1 times [2023-11-29 03:43:11,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:43:11,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849060207] [2023-11-29 03:43:11,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:43:11,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:43:11,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:43:11,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:43:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:43:11,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:43:11,447 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:43:11,448 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr1ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-11-29 03:43:11,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-29 03:43:11,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-29 03:43:11,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-29 03:43:11,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-29 03:43:11,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-29 03:43:11,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-29 03:43:11,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-29 03:43:11,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-29 03:43:11,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-29 03:43:11,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-11-29 03:43:11,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-11-29 03:43:11,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-29 03:43:11,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-29 03:43:11,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-29 03:43:11,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 03:43:11,450 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:43:11,455 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-11-29 03:43:11,455 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:43:11,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-29 03:43:11,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-29 03:43:11,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-29 03:43:11,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-29 03:43:11,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-29 03:43:11,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-29 03:43:11,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,503 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-29 03:43:11,504 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-29 03:43:11,504 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-29 03:43:11,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:43:11 BasicIcfg [2023-11-29 03:43:11,562 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:43:11,562 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:43:11,562 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:43:11,562 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:43:11,563 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:43:02" (3/4) ... [2023-11-29 03:43:11,564 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 03:43:11,565 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:43:11,565 INFO L158 Benchmark]: Toolchain (without parser) took 9469.51ms. Allocated memory was 146.8MB in the beginning and 578.8MB in the end (delta: 432.0MB). Free memory was 115.5MB in the beginning and 345.3MB in the end (delta: -229.8MB). Peak memory consumption was 204.6MB. Max. memory is 16.1GB. [2023-11-29 03:43:11,566 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:43:11,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.57ms. Allocated memory is still 146.8MB. Free memory was 115.5MB in the beginning and 96.3MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 03:43:11,566 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.40ms. Allocated memory is still 146.8MB. Free memory was 95.8MB in the beginning and 94.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:43:11,566 INFO L158 Benchmark]: Boogie Preprocessor took 28.95ms. Allocated memory is still 146.8MB. Free memory was 94.2MB in the beginning and 92.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:43:11,567 INFO L158 Benchmark]: RCFGBuilder took 332.12ms. Allocated memory is still 146.8MB. Free memory was 92.7MB in the beginning and 76.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 03:43:11,567 INFO L158 Benchmark]: TraceAbstraction took 8615.69ms. Allocated memory was 146.8MB in the beginning and 578.8MB in the end (delta: 432.0MB). Free memory was 76.4MB in the beginning and 345.3MB in the end (delta: -268.9MB). Peak memory consumption was 380.7MB. Max. memory is 16.1GB. [2023-11-29 03:43:11,567 INFO L158 Benchmark]: Witness Printer took 2.85ms. Allocated memory is still 578.8MB. Free memory is still 345.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:43:11,569 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 438.57ms. Allocated memory is still 146.8MB. Free memory was 115.5MB in the beginning and 96.3MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.40ms. Allocated memory is still 146.8MB. Free memory was 95.8MB in the beginning and 94.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.95ms. Allocated memory is still 146.8MB. Free memory was 94.2MB in the beginning and 92.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 332.12ms. Allocated memory is still 146.8MB. Free memory was 92.7MB in the beginning and 76.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8615.69ms. Allocated memory was 146.8MB in the beginning and 578.8MB in the end (delta: 432.0MB). Free memory was 76.4MB in the beginning and 345.3MB in the end (delta: -268.9MB). Peak memory consumption was 380.7MB. Max. memory is 16.1GB. * Witness Printer took 2.85ms. Allocated memory is still 578.8MB. Free memory is still 345.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 692]: Data race detected [2023-11-29 03:43:11,602 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-29 03:43:11,603 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-29 03:43:11,603 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-29 03:43:11,603 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-29 03:43:11,604 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-29 03:43:11,604 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,604 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,604 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-29 03:43:11,605 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,605 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-29 03:43:11,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-29 03:43:11,606 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-29 03:43:11,627 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-29 03:43:11,627 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-29 03:43:11,628 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet2 could not be translated [2023-11-29 03:43:11,628 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-11-29 03:43:11,628 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-29 03:43:11,628 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,629 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,629 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem12 could not be translated [2023-11-29 03:43:11,629 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,629 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,630 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-29 03:43:11,630 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-29 03:43:11,630 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post8 could not be translated [2023-11-29 03:43:11,631 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated Data race detected The following path leads to a data race: [L685] 0 int threads_alive = 0; VAL [threads_alive=0] [L686] 0 int data = 0; VAL [data=0, threads_alive=0] [L687] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={1:0}, threads_alive=0] [L696] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={1:0}, threads_alive=0, threads_total=2] [L697] CALL 0 assume_abort_if_not(threads_total >= 0) [L682] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, data_mutex={1:0}, threads_alive=0] [L697] RET 0 assume_abort_if_not(threads_total >= 0) [L698] 0 int i = 0; VAL [data=0, data_mutex={1:0}, i=0, threads_alive=0, threads_total=2] [L698] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={1:0}, i=0, threads_alive=0, threads_total=2] [L699] 0 threads_alive++ VAL [data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2] [L700] 0 pthread_t tid; VAL [data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2, tid={5:0}] [L701] FCALL, FORK 0 pthread_create(&tid, ((void *)0), &thread, ((void *)0)) VAL [arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2, tid={5:0}] [L690] 1 data = __VERIFIER_nondet_int() VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=1] [L702] EXPR 0 \read(tid) VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2, tid={5:0}] [L702] 0 pthread_detach(tid) VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=0, threads_alive=1, threads_total=2, tid={5:0}] [L698] 0 i++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=1, threads_total=2, tid={5:0}] [L698] COND TRUE 0 i < threads_total VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=1, threads_total=2] [L699] 0 threads_alive++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=2, threads_total=2] [L692] 1 threads_alive-- VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=2] [L699] 0 threads_alive++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, i=1, threads_alive=2, threads_total=2] [L692] 1 threads_alive-- VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={1:0}, threads_alive=2] Now there is a data race on ~threads_alive~0 between C: threads_alive++ [699] and C: threads_alive-- [692] - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 130 locations, 12 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: 2.0s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 142 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 197 IncrementalHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 10 mSDtfsCounter, 197 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=426occurred in iteration=6, InterpolantAutomatonStates: 21, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 315 NumberOfCodeBlocks, 315 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 238 ConstructedInterpolants, 0 QuantifiedInterpolants, 329 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 158 locations, 15 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: 6.4s, OverallIterations: 8, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 268 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 131 mSDsluCounter, 52 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 399 IncrementalHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 37 mSDtfsCounter, 399 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=709occurred in iteration=7, InterpolantAutomatonStates: 28, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 464 NumberOfCodeBlocks, 464 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 701 SizeOfPredicates, 2 NumberOfNonLiveVariables, 161 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 1/2 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-29 03:43:11,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e6a61d0-cc6c-499c-82ca-8f4f94e78144/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE