./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.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_6198c44d-4d59-43d6-b908-ec90801a85a9/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/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_6198c44d-4d59-43d6-b908-ec90801a85a9/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/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_6198c44d-4d59-43d6-b908-ec90801a85a9/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 6710ae2bfe9a41273181e1b4b9dbdfa98f0dea6daffb771915892955eccb69dd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 07:02:55,315 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 07:02:55,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 07:02:55,409 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 07:02:55,410 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 07:02:55,436 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 07:02:55,436 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 07:02:55,437 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 07:02:55,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 07:02:55,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 07:02:55,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 07:02:55,440 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 07:02:55,441 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 07:02:55,441 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 07:02:55,442 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 07:02:55,442 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 07:02:55,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 07:02:55,443 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 07:02:55,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 07:02:55,444 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 07:02:55,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 07:02:55,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 07:02:55,446 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 07:02:55,447 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 07:02:55,447 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 07:02:55,448 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 07:02:55,448 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 07:02:55,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 07:02:55,449 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 07:02:55,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 07:02:55,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:02:55,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 07:02:55,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 07:02:55,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 07:02:55,451 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 07:02:55,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 07:02:55,451 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 07:02:55,451 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 07:02:55,452 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 07:02:55,452 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 07:02:55,452 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 07:02:55,452 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_6198c44d-4d59-43d6-b908-ec90801a85a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6710ae2bfe9a41273181e1b4b9dbdfa98f0dea6daffb771915892955eccb69dd [2023-11-29 07:02:55,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 07:02:55,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 07:02:55,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 07:02:55,770 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 07:02:55,770 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 07:02:55,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.i [2023-11-29 07:02:58,613 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 07:02:58,835 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 07:02:58,836 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/sv-benchmarks/c/pthread-ext/35_double_lock_p3_vs.i [2023-11-29 07:02:58,851 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/bin/uautomizer-verify-BQ2R08f2Ya/data/2b2c6ae51/65e1413e842a41318b60ffe955e5ddf9/FLAGb0d580994 [2023-11-29 07:02:59,178 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/bin/uautomizer-verify-BQ2R08f2Ya/data/2b2c6ae51/65e1413e842a41318b60ffe955e5ddf9 [2023-11-29 07:02:59,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 07:02:59,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 07:02:59,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 07:02:59,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 07:02:59,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 07:02:59,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf11c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59, skipping insertion in model container [2023-11-29 07:02:59,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,234 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 07:02:59,518 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:02:59,528 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 07:02:59,571 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 07:02:59,612 INFO L206 MainTranslator]: Completed translation [2023-11-29 07:02:59,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59 WrapperNode [2023-11-29 07:02:59,612 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 07:02:59,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 07:02:59,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 07:02:59,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 07:02:59,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,672 INFO L138 Inliner]: procedures = 172, calls = 28, calls flagged for inlining = 12, calls inlined = 16, statements flattened = 226 [2023-11-29 07:02:59,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 07:02:59,673 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 07:02:59,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 07:02:59,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 07:02:59,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 07:02:59,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 07:02:59,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 07:02:59,725 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 07:02:59,726 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (1/1) ... [2023-11-29 07:02:59,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 07:02:59,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 07:02:59,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 07:02:59,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6198c44d-4d59-43d6-b908-ec90801a85a9/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 07:02:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 07:02:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-11-29 07:02:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-11-29 07:02:59,803 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-29 07:02:59,803 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-29 07:02:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 07:02:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 07:02:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 07:02:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 07:02:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 07:02:59,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 07:02:59,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 07:02:59,806 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 07:02:59,938 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 07:02:59,940 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 07:03:00,340 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 07:03:00,568 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 07:03:00,568 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 07:03:00,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:03:00 BoogieIcfgContainer [2023-11-29 07:03:00,570 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 07:03:00,572 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 07:03:00,572 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 07:03:00,575 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 07:03:00,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:02:59" (1/3) ... [2023-11-29 07:03:00,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0aa25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:03:00, skipping insertion in model container [2023-11-29 07:03:00,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:02:59" (2/3) ... [2023-11-29 07:03:00,576 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0aa25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:03:00, skipping insertion in model container [2023-11-29 07:03:00,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:03:00" (3/3) ... [2023-11-29 07:03:00,578 INFO L112 eAbstractionObserver]: Analyzing ICFG 35_double_lock_p3_vs.i [2023-11-29 07:03:00,587 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 07:03:00,597 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 07:03:00,597 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2023-11-29 07:03:00,598 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 07:03:00,671 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 07:03:00,708 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 262 flow [2023-11-29 07:03:00,766 INFO L124 PetriNetUnfolderBase]: 7/137 cut-off events. [2023-11-29 07:03:00,766 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 07:03:00,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 137 events. 7/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 214 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 121. Up to 4 conditions per place. [2023-11-29 07:03:00,773 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 127 transitions, 262 flow [2023-11-29 07:03:00,779 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 126 places, 126 transitions, 259 flow [2023-11-29 07:03:00,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:03:00,796 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;@40fce1d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:03:00,796 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2023-11-29 07:03:00,804 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 07:03:00,804 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2023-11-29 07:03:00,804 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 07:03:00,804 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:03:00,805 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] [2023-11-29 07:03:00,806 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2023-11-29 07:03:00,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:00,811 INFO L85 PathProgramCache]: Analyzing trace with hash -2056045845, now seen corresponding path program 1 times [2023-11-29 07:03:00,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:00,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211956046] [2023-11-29 07:03:00,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:00,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:00,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:01,221 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 07:03:01,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:01,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211956046] [2023-11-29 07:03:01,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211956046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:03:01,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:03:01,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 07:03:01,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097368779] [2023-11-29 07:03:01,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:03:01,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:03:01,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:01,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:03:01,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:03:01,267 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 127 [2023-11-29 07:03:01,270 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 126 transitions, 259 flow. Second operand has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 07:03:01,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:03:01,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 127 [2023-11-29 07:03:01,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:03:01,374 INFO L124 PetriNetUnfolderBase]: 16/200 cut-off events. [2023-11-29 07:03:01,374 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-29 07:03:01,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 200 events. 16/200 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 443 event pairs, 9 based on Foata normal form. 38/208 useless extension candidates. Maximal degree in co-relation 217. Up to 33 conditions per place. [2023-11-29 07:03:01,378 INFO L140 encePairwiseOnDemand]: 109/127 looper letters, 8 selfloop transitions, 0 changer transitions 0/98 dead transitions. [2023-11-29 07:03:01,379 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 98 transitions, 219 flow [2023-11-29 07:03:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:03:01,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 07:03:01,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 226 transitions. [2023-11-29 07:03:01,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.889763779527559 [2023-11-29 07:03:01,394 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 226 transitions. [2023-11-29 07:03:01,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 226 transitions. [2023-11-29 07:03:01,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:03:01,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 226 transitions. [2023-11-29 07:03:01,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 0 states have call successors, (0), 0 states 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 07:03:01,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states 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 07:03:01,406 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states 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 07:03:01,408 INFO L175 Difference]: Start difference. First operand has 126 places, 126 transitions, 259 flow. Second operand 2 states and 226 transitions. [2023-11-29 07:03:01,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 98 transitions, 219 flow [2023-11-29 07:03:01,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 98 transitions, 218 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 07:03:01,415 INFO L231 Difference]: Finished difference. Result has 102 places, 98 transitions, 202 flow [2023-11-29 07:03:01,417 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=202, PETRI_PLACES=102, PETRI_TRANSITIONS=98} [2023-11-29 07:03:01,421 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, -24 predicate places. [2023-11-29 07:03:01,421 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 98 transitions, 202 flow [2023-11-29 07:03:01,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 07:03:01,421 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:03:01,422 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:03:01,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 07:03:01,422 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2023-11-29 07:03:01,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:01,423 INFO L85 PathProgramCache]: Analyzing trace with hash -175075569, now seen corresponding path program 1 times [2023-11-29 07:03:01,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:01,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067554661] [2023-11-29 07:03:01,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:01,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:01,466 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 07:03:01,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:01,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067554661] [2023-11-29 07:03:01,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067554661] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:03:01,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:03:01,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:03:01,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853660299] [2023-11-29 07:03:01,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:03:01,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:03:01,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:01,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:03:01,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:03:01,508 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 127 [2023-11-29 07:03:01,509 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 98 transitions, 202 flow. Second operand has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states 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 07:03:01,509 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:03:01,509 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 127 [2023-11-29 07:03:01,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:03:01,671 INFO L124 PetriNetUnfolderBase]: 120/535 cut-off events. [2023-11-29 07:03:01,671 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-29 07:03:01,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 535 events. 120/535 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2331 event pairs, 37 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 802. Up to 176 conditions per place. [2023-11-29 07:03:01,678 INFO L140 encePairwiseOnDemand]: 112/127 looper letters, 26 selfloop transitions, 10 changer transitions 0/107 dead transitions. [2023-11-29 07:03:01,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 107 transitions, 295 flow [2023-11-29 07:03:01,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:03:01,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:03:01,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 284 transitions. [2023-11-29 07:03:01,681 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7454068241469817 [2023-11-29 07:03:01,681 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 284 transitions. [2023-11-29 07:03:01,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 284 transitions. [2023-11-29 07:03:01,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:03:01,682 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 284 transitions. [2023-11-29 07:03:01,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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 07:03:01,685 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 07:03:01,686 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 07:03:01,686 INFO L175 Difference]: Start difference. First operand has 102 places, 98 transitions, 202 flow. Second operand 3 states and 284 transitions. [2023-11-29 07:03:01,686 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 107 transitions, 295 flow [2023-11-29 07:03:01,687 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 107 transitions, 295 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 07:03:01,690 INFO L231 Difference]: Finished difference. Result has 102 places, 100 transitions, 260 flow [2023-11-29 07:03:01,690 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=127, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=102, PETRI_TRANSITIONS=100} [2023-11-29 07:03:01,691 INFO L281 CegarLoopForPetriNet]: 126 programPoint places, -24 predicate places. [2023-11-29 07:03:01,691 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 100 transitions, 260 flow [2023-11-29 07:03:01,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 82.33333333333333) internal successors, (247), 3 states have internal predecessors, (247), 0 states have call successors, (0), 0 states 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 07:03:01,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:03:01,692 INFO L208 CegarLoopForPetriNet]: trace histogram [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] [2023-11-29 07:03:01,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 07:03:01,692 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 40 more)] === [2023-11-29 07:03:01,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:01,693 INFO L85 PathProgramCache]: Analyzing trace with hash -83838233, now seen corresponding path program 1 times [2023-11-29 07:03:01,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:01,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273074724] [2023-11-29 07:03:01,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:01,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:03:01,711 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 07:03:01,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:03:01,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 07:03:01,744 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 07:03:01,745 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2023-11-29 07:03:01,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2023-11-29 07:03:01,747 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2023-11-29 07:03:01,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2023-11-29 07:03:01,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2023-11-29 07:03:01,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2023-11-29 07:03:01,748 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2023-11-29 07:03:01,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2023-11-29 07:03:01,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2023-11-29 07:03:01,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2023-11-29 07:03:01,749 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2023-11-29 07:03:01,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2023-11-29 07:03:01,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2023-11-29 07:03:01,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2023-11-29 07:03:01,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2023-11-29 07:03:01,750 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2023-11-29 07:03:01,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2023-11-29 07:03:01,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2023-11-29 07:03:01,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2023-11-29 07:03:01,751 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2023-11-29 07:03:01,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2023-11-29 07:03:01,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2023-11-29 07:03:01,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 44 remaining) [2023-11-29 07:03:01,752 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2023-11-29 07:03:01,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2023-11-29 07:03:01,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2023-11-29 07:03:01,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2023-11-29 07:03:01,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2023-11-29 07:03:01,753 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2023-11-29 07:03:01,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2023-11-29 07:03:01,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2023-11-29 07:03:01,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2023-11-29 07:03:01,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2023-11-29 07:03:01,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2023-11-29 07:03:01,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2023-11-29 07:03:01,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2023-11-29 07:03:01,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2023-11-29 07:03:01,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2023-11-29 07:03:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2023-11-29 07:03:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2023-11-29 07:03:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2023-11-29 07:03:01,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2023-11-29 07:03:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2023-11-29 07:03:01,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2023-11-29 07:03:01,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 07:03:01,757 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 07:03:01,760 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 07:03:01,760 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-29 07:03:01,834 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 07:03:01,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 219 places, 220 transitions, 460 flow [2023-11-29 07:03:01,867 INFO L124 PetriNetUnfolderBase]: 9/218 cut-off events. [2023-11-29 07:03:01,868 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 07:03:01,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 218 events. 9/218 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 474 event pairs, 0 based on Foata normal form. 0/169 useless extension candidates. Maximal degree in co-relation 225. Up to 6 conditions per place. [2023-11-29 07:03:01,869 INFO L82 GeneralOperation]: Start removeDead. Operand has 219 places, 220 transitions, 460 flow [2023-11-29 07:03:01,873 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 195 places, 194 transitions, 401 flow [2023-11-29 07:03:01,875 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:03:01,876 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;@40fce1d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:03:01,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2023-11-29 07:03:01,879 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 07:03:01,880 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2023-11-29 07:03:01,880 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 07:03:01,880 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:03:01,880 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] [2023-11-29 07:03:01,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-29 07:03:01,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:01,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1250771250, now seen corresponding path program 1 times [2023-11-29 07:03:01,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:01,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387823513] [2023-11-29 07:03:01,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:01,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:02,001 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 07:03:02,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:02,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387823513] [2023-11-29 07:03:02,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387823513] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:03:02,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:03:02,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 07:03:02,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798930947] [2023-11-29 07:03:02,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:03:02,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:03:02,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:02,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:03:02,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:03:02,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 220 [2023-11-29 07:03:02,006 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 194 transitions, 401 flow. Second operand has 2 states, 2 states have (on average 169.0) internal successors, (338), 2 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 07:03:02,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:03:02,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 220 [2023-11-29 07:03:02,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:03:02,259 INFO L124 PetriNetUnfolderBase]: 152/1268 cut-off events. [2023-11-29 07:03:02,259 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2023-11-29 07:03:02,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1566 conditions, 1268 events. 152/1268 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 8383 event pairs, 119 based on Foata normal form. 211/1292 useless extension candidates. Maximal degree in co-relation 1540. Up to 243 conditions per place. [2023-11-29 07:03:02,270 INFO L140 encePairwiseOnDemand]: 194/220 looper letters, 13 selfloop transitions, 0 changer transitions 0/158 dead transitions. [2023-11-29 07:03:02,270 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 158 transitions, 355 flow [2023-11-29 07:03:02,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:03:02,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 07:03:02,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 375 transitions. [2023-11-29 07:03:02,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8522727272727273 [2023-11-29 07:03:02,273 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 375 transitions. [2023-11-29 07:03:02,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 375 transitions. [2023-11-29 07:03:02,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:03:02,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 375 transitions. [2023-11-29 07:03:02,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 187.5) internal successors, (375), 2 states have internal predecessors, (375), 0 states have call successors, (0), 0 states 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 07:03:02,277 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states 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 07:03:02,277 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 220.0) internal successors, (660), 3 states have internal predecessors, (660), 0 states have call successors, (0), 0 states 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 07:03:02,278 INFO L175 Difference]: Start difference. First operand has 195 places, 194 transitions, 401 flow. Second operand 2 states and 375 transitions. [2023-11-29 07:03:02,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 158 transitions, 355 flow [2023-11-29 07:03:02,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 158 transitions, 354 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 07:03:02,310 INFO L231 Difference]: Finished difference. Result has 163 places, 158 transitions, 328 flow [2023-11-29 07:03:02,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=328, PETRI_PLACES=163, PETRI_TRANSITIONS=158} [2023-11-29 07:03:02,312 INFO L281 CegarLoopForPetriNet]: 195 programPoint places, -32 predicate places. [2023-11-29 07:03:02,312 INFO L495 AbstractCegarLoop]: Abstraction has has 163 places, 158 transitions, 328 flow [2023-11-29 07:03:02,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 169.0) internal successors, (338), 2 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 07:03:02,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:03:02,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 07:03:02,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 07:03:02,313 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-29 07:03:02,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:02,314 INFO L85 PathProgramCache]: Analyzing trace with hash 599706130, now seen corresponding path program 1 times [2023-11-29 07:03:02,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:02,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152173495] [2023-11-29 07:03:02,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:02,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:02,340 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 07:03:02,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:02,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152173495] [2023-11-29 07:03:02,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152173495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:03:02,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:03:02,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:03:02,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596250726] [2023-11-29 07:03:02,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:03:02,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:03:02,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:02,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:03:02,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:03:02,416 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 220 [2023-11-29 07:03:02,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 158 transitions, 328 flow. Second operand has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 07:03:02,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:03:02,417 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 220 [2023-11-29 07:03:02,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:03:04,918 INFO L124 PetriNetUnfolderBase]: 6141/16066 cut-off events. [2023-11-29 07:03:04,918 INFO L125 PetriNetUnfolderBase]: For 391/391 co-relation queries the response was YES. [2023-11-29 07:03:04,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26292 conditions, 16066 events. 6141/16066 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 156319 event pairs, 2047 based on Foata normal form. 0/14085 useless extension candidates. Maximal degree in co-relation 26287. Up to 6244 conditions per place. [2023-11-29 07:03:05,037 INFO L140 encePairwiseOnDemand]: 185/220 looper letters, 60 selfloop transitions, 26 changer transitions 0/196 dead transitions. [2023-11-29 07:03:05,037 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 196 transitions, 584 flow [2023-11-29 07:03:05,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:03:05,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:03:05,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 485 transitions. [2023-11-29 07:03:05,040 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7348484848484849 [2023-11-29 07:03:05,040 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 485 transitions. [2023-11-29 07:03:05,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 485 transitions. [2023-11-29 07:03:05,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:03:05,040 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 485 transitions. [2023-11-29 07:03:05,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states 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 07:03:05,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 0 states have call successors, (0), 0 states 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 07:03:05,044 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 220.0) internal successors, (880), 4 states have internal predecessors, (880), 0 states have call successors, (0), 0 states 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 07:03:05,044 INFO L175 Difference]: Start difference. First operand has 163 places, 158 transitions, 328 flow. Second operand 3 states and 485 transitions. [2023-11-29 07:03:05,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 196 transitions, 584 flow [2023-11-29 07:03:05,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 196 transitions, 584 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 07:03:05,049 INFO L231 Difference]: Finished difference. Result has 167 places, 184 transitions, 554 flow [2023-11-29 07:03:05,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=220, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=554, PETRI_PLACES=167, PETRI_TRANSITIONS=184} [2023-11-29 07:03:05,050 INFO L281 CegarLoopForPetriNet]: 195 programPoint places, -28 predicate places. [2023-11-29 07:03:05,051 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 184 transitions, 554 flow [2023-11-29 07:03:05,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 131.33333333333334) internal successors, (394), 3 states have internal predecessors, (394), 0 states have call successors, (0), 0 states 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 07:03:05,051 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:03:05,052 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 07:03:05,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 07:03:05,052 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-29 07:03:05,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:05,053 INFO L85 PathProgramCache]: Analyzing trace with hash -2133533615, now seen corresponding path program 1 times [2023-11-29 07:03:05,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:05,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103245166] [2023-11-29 07:03:05,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:05,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:03:05,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 07:03:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 07:03:05,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 07:03:05,084 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 07:03:05,084 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2023-11-29 07:03:05,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2023-11-29 07:03:05,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2023-11-29 07:03:05,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2023-11-29 07:03:05,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2023-11-29 07:03:05,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2023-11-29 07:03:05,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2023-11-29 07:03:05,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2023-11-29 07:03:05,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2023-11-29 07:03:05,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2023-11-29 07:03:05,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2023-11-29 07:03:05,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2023-11-29 07:03:05,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2023-11-29 07:03:05,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2023-11-29 07:03:05,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2023-11-29 07:03:05,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2023-11-29 07:03:05,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2023-11-29 07:03:05,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2023-11-29 07:03:05,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2023-11-29 07:03:05,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2023-11-29 07:03:05,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2023-11-29 07:03:05,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2023-11-29 07:03:05,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (42 of 65 remaining) [2023-11-29 07:03:05,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2023-11-29 07:03:05,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2023-11-29 07:03:05,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2023-11-29 07:03:05,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2023-11-29 07:03:05,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2023-11-29 07:03:05,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2023-11-29 07:03:05,089 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2023-11-29 07:03:05,089 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2023-11-29 07:03:05,089 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2023-11-29 07:03:05,089 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2023-11-29 07:03:05,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2023-11-29 07:03:05,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2023-11-29 07:03:05,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2023-11-29 07:03:05,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2023-11-29 07:03:05,090 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2023-11-29 07:03:05,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2023-11-29 07:03:05,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2023-11-29 07:03:05,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2023-11-29 07:03:05,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2023-11-29 07:03:05,091 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2023-11-29 07:03:05,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2023-11-29 07:03:05,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2023-11-29 07:03:05,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2023-11-29 07:03:05,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2023-11-29 07:03:05,092 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2023-11-29 07:03:05,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2023-11-29 07:03:05,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2023-11-29 07:03:05,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2023-11-29 07:03:05,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2023-11-29 07:03:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2023-11-29 07:03:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2023-11-29 07:03:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err15ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2023-11-29 07:03:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2023-11-29 07:03:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2023-11-29 07:03:05,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2023-11-29 07:03:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2023-11-29 07:03:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2023-11-29 07:03:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2023-11-29 07:03:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2023-11-29 07:03:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2023-11-29 07:03:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2023-11-29 07:03:05,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2023-11-29 07:03:05,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 07:03:05,096 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-29 07:03:05,097 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-29 07:03:05,097 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-29 07:03:05,200 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 07:03:05,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 311 places, 313 transitions, 662 flow [2023-11-29 07:03:05,290 INFO L124 PetriNetUnfolderBase]: 11/299 cut-off events. [2023-11-29 07:03:05,290 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-29 07:03:05,293 INFO L83 FinitePrefix]: Finished finitePrefix Result has 317 conditions, 299 events. 11/299 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 850 event pairs, 0 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 310. Up to 8 conditions per place. [2023-11-29 07:03:05,293 INFO L82 GeneralOperation]: Start removeDead. Operand has 311 places, 313 transitions, 662 flow [2023-11-29 07:03:05,299 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 264 places, 262 transitions, 545 flow [2023-11-29 07:03:05,300 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 07:03:05,301 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;@40fce1d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 07:03:05,301 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2023-11-29 07:03:05,304 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 07:03:05,304 INFO L124 PetriNetUnfolderBase]: 2/27 cut-off events. [2023-11-29 07:03:05,304 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 07:03:05,304 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:03:05,304 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] [2023-11-29 07:03:05,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-11-29 07:03:05,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:05,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1826487270, now seen corresponding path program 1 times [2023-11-29 07:03:05,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:05,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896437296] [2023-11-29 07:03:05,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:05,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:05,405 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 07:03:05,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:05,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896437296] [2023-11-29 07:03:05,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896437296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:03:05,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:03:05,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-29 07:03:05,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269360681] [2023-11-29 07:03:05,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:03:05,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 07:03:05,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:05,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 07:03:05,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-29 07:03:05,408 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 313 [2023-11-29 07:03:05,408 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 262 transitions, 545 flow. Second operand has 2 states, 2 states have (on average 237.0) internal successors, (474), 2 states have internal predecessors, (474), 0 states have call successors, (0), 0 states 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 07:03:05,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:03:05,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 313 [2023-11-29 07:03:05,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:03:06,874 INFO L124 PetriNetUnfolderBase]: 1128/7145 cut-off events. [2023-11-29 07:03:06,874 INFO L125 PetriNetUnfolderBase]: For 501/501 co-relation queries the response was YES. [2023-11-29 07:03:06,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9094 conditions, 7145 events. 1128/7145 cut-off events. For 501/501 co-relation queries the response was YES. Maximal size of possible extension queue 150. Compared 74248 event pairs, 969 based on Foata normal form. 1084/7214 useless extension candidates. Maximal degree in co-relation 9067. Up to 1593 conditions per place. [2023-11-29 07:03:06,971 INFO L140 encePairwiseOnDemand]: 279/313 looper letters, 18 selfloop transitions, 0 changer transitions 0/218 dead transitions. [2023-11-29 07:03:06,972 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 218 transitions, 493 flow [2023-11-29 07:03:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 07:03:06,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-29 07:03:06,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 524 transitions. [2023-11-29 07:03:06,975 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8370607028753994 [2023-11-29 07:03:06,975 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 524 transitions. [2023-11-29 07:03:06,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 524 transitions. [2023-11-29 07:03:06,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:03:06,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 524 transitions. [2023-11-29 07:03:06,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 262.0) internal successors, (524), 2 states have internal predecessors, (524), 0 states have call successors, (0), 0 states 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 07:03:06,980 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states 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 07:03:06,980 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 313.0) internal successors, (939), 3 states have internal predecessors, (939), 0 states have call successors, (0), 0 states 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 07:03:06,981 INFO L175 Difference]: Start difference. First operand has 264 places, 262 transitions, 545 flow. Second operand 2 states and 524 transitions. [2023-11-29 07:03:06,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 218 transitions, 493 flow [2023-11-29 07:03:06,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 218 transitions, 490 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-29 07:03:06,988 INFO L231 Difference]: Finished difference. Result has 224 places, 218 transitions, 454 flow [2023-11-29 07:03:06,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=454, PETRI_PLACES=224, PETRI_TRANSITIONS=218} [2023-11-29 07:03:06,989 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, -40 predicate places. [2023-11-29 07:03:06,989 INFO L495 AbstractCegarLoop]: Abstraction has has 224 places, 218 transitions, 454 flow [2023-11-29 07:03:06,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 237.0) internal successors, (474), 2 states have internal predecessors, (474), 0 states have call successors, (0), 0 states 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 07:03:06,990 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:03:06,990 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] [2023-11-29 07:03:06,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 07:03:06,991 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-11-29 07:03:06,991 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:03:06,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1387310166, now seen corresponding path program 1 times [2023-11-29 07:03:06,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:03:06,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987135330] [2023-11-29 07:03:06,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:03:06,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:03:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:03:07,025 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 07:03:07,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:03:07,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987135330] [2023-11-29 07:03:07,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987135330] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:03:07,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:03:07,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:03:07,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198494062] [2023-11-29 07:03:07,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:03:07,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:03:07,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:03:07,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:03:07,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:03:07,135 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 313 [2023-11-29 07:03:07,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 218 transitions, 454 flow. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states 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 07:03:07,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:03:07,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 313 [2023-11-29 07:03:07,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:04:08,769 INFO L124 PetriNetUnfolderBase]: 228062/469129 cut-off events. [2023-11-29 07:04:08,769 INFO L125 PetriNetUnfolderBase]: For 11259/11259 co-relation queries the response was YES. [2023-11-29 07:04:10,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 799822 conditions, 469129 events. 228062/469129 cut-off events. For 11259/11259 co-relation queries the response was YES. Maximal size of possible extension queue 7881. Compared 6110598 event pairs, 80907 based on Foata normal form. 0/408300 useless extension candidates. Maximal degree in co-relation 799816. Up to 194138 conditions per place. [2023-11-29 07:04:13,070 INFO L140 encePairwiseOnDemand]: 262/313 looper letters, 86 selfloop transitions, 38 changer transitions 0/273 dead transitions. [2023-11-29 07:04:13,070 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 273 transitions, 825 flow [2023-11-29 07:04:13,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 07:04:13,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 07:04:13,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 674 transitions. [2023-11-29 07:04:13,074 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7177848775292864 [2023-11-29 07:04:13,074 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 674 transitions. [2023-11-29 07:04:13,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 674 transitions. [2023-11-29 07:04:13,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 07:04:13,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 674 transitions. [2023-11-29 07:04:13,076 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 0 states have call successors, (0), 0 states 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 07:04:13,079 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:04:13,081 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 313.0) internal successors, (1252), 4 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 07:04:13,081 INFO L175 Difference]: Start difference. First operand has 224 places, 218 transitions, 454 flow. Second operand 3 states and 674 transitions. [2023-11-29 07:04:13,081 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 273 transitions, 825 flow [2023-11-29 07:04:13,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 273 transitions, 825 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 07:04:13,097 INFO L231 Difference]: Finished difference. Result has 228 places, 256 transitions, 784 flow [2023-11-29 07:04:13,098 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=313, PETRI_DIFFERENCE_MINUEND_FLOW=454, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=784, PETRI_PLACES=228, PETRI_TRANSITIONS=256} [2023-11-29 07:04:13,099 INFO L281 CegarLoopForPetriNet]: 264 programPoint places, -36 predicate places. [2023-11-29 07:04:13,099 INFO L495 AbstractCegarLoop]: Abstraction has has 228 places, 256 transitions, 784 flow [2023-11-29 07:04:13,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states 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 07:04:13,100 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 07:04:13,100 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] [2023-11-29 07:04:13,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 07:04:13,101 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 82 more)] === [2023-11-29 07:04:13,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 07:04:13,101 INFO L85 PathProgramCache]: Analyzing trace with hash -676695148, now seen corresponding path program 1 times [2023-11-29 07:04:13,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 07:04:13,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931731452] [2023-11-29 07:04:13,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 07:04:13,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 07:04:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 07:04:13,141 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 07:04:13,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 07:04:13,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931731452] [2023-11-29 07:04:13,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931731452] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 07:04:13,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 07:04:13,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 07:04:13,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644321379] [2023-11-29 07:04:13,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 07:04:13,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 07:04:13,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 07:04:13,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 07:04:13,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 07:04:13,276 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 313 [2023-11-29 07:04:13,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 256 transitions, 784 flow. Second operand has 3 states, 3 states have (on average 205.66666666666666) internal successors, (617), 3 states have internal predecessors, (617), 0 states have call successors, (0), 0 states 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 07:04:13,278 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 07:04:13,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 313 [2023-11-29 07:04:13,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 07:04:38,750 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1364] L708-2-->L709: Formula: (= |v_#race~count~0_13| 0) InVars {} OutVars{#race~count~0=|v_#race~count~0_13|} AuxVars[] AssignedVars[#race~count~0][210], [Black: 317#true, 323#true, 319#(= |#race~count~0| 0), 314#true, 3#thr2Err2ASSERT_VIOLATIONDATA_RACEtrue, 133#thr1Err2ASSERT_VIOLATIONDATA_RACEtrue, 71#L709true, thr1Thread1of3ForFork1InUse, 227#L736-4true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, 236#L707-3true, thr2Thread3of3ForFork0InUse]) [2023-11-29 07:04:38,750 INFO L294 olderBase$Statistics]: this new event has 107 ancestors and is not cut-off event [2023-11-29 07:04:38,750 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is not cut-off event [2023-11-29 07:04:38,750 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is not cut-off event [2023-11-29 07:04:38,750 INFO L297 olderBase$Statistics]: existing Event has 107 ancestors and is not cut-off event [2023-11-29 07:04:49,998 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1230] L708-2-->L709: Formula: (= |v_#race~count~0_13| 0) InVars {} OutVars{#race~count~0=|v_#race~count~0_13|} AuxVars[] AssignedVars[#race~count~0][137], [Black: 317#true, 319#(= |#race~count~0| 0), 323#true, 314#true, 70#thr2Err4ASSERT_VIOLATIONDATA_RACEtrue, 91#L709true, 133#thr1Err2ASSERT_VIOLATIONDATA_RACEtrue, thr1Thread1of3ForFork1InUse, 227#L736-4true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, 236#L707-3true, thr2Thread3of3ForFork0InUse]) [2023-11-29 07:04:49,999 INFO L294 olderBase$Statistics]: this new event has 116 ancestors and is not cut-off event [2023-11-29 07:04:49,999 INFO L297 olderBase$Statistics]: existing Event has 116 ancestors and is not cut-off event [2023-11-29 07:04:49,999 INFO L297 olderBase$Statistics]: existing Event has 116 ancestors and is not cut-off event [2023-11-29 07:04:49,999 INFO L297 olderBase$Statistics]: existing Event has 116 ancestors and is not cut-off event [2023-11-29 07:04:50,004 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1230] L708-2-->L709: Formula: (= |v_#race~count~0_13| 0) InVars {} OutVars{#race~count~0=|v_#race~count~0_13|} AuxVars[] AssignedVars[#race~count~0][137], [Black: 317#true, 319#(= |#race~count~0| 0), 323#true, 314#true, 63#L708-2true, 133#thr1Err2ASSERT_VIOLATIONDATA_RACEtrue, 91#L709true, thr1Thread1of3ForFork1InUse, 227#L736-4true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse, 48#thr2Err4ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 07:04:50,005 INFO L294 olderBase$Statistics]: this new event has 117 ancestors and is cut-off event [2023-11-29 07:04:50,005 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2023-11-29 07:04:50,005 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2023-11-29 07:04:50,005 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is cut-off event [2023-11-29 07:04:50,041 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1364] L708-2-->L709: Formula: (= |v_#race~count~0_13| 0) InVars {} OutVars{#race~count~0=|v_#race~count~0_13|} AuxVars[] AssignedVars[#race~count~0][210], [Black: 317#true, 323#true, 319#(= |#race~count~0| 0), 314#true, 133#thr1Err2ASSERT_VIOLATIONDATA_RACEtrue, 71#L709true, thr1Thread1of3ForFork1InUse, 227#L736-4true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, 236#L707-3true, thr2Thread3of3ForFork0InUse, 138#thr2Err4ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 07:04:50,042 INFO L294 olderBase$Statistics]: this new event has 116 ancestors and is not cut-off event [2023-11-29 07:04:50,042 INFO L297 olderBase$Statistics]: existing Event has 116 ancestors and is not cut-off event [2023-11-29 07:04:50,042 INFO L297 olderBase$Statistics]: existing Event has 116 ancestors and is not cut-off event [2023-11-29 07:04:50,042 INFO L297 olderBase$Statistics]: existing Event has 116 ancestors and is not cut-off event [2023-11-29 07:04:51,083 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1364] L708-2-->L709: Formula: (= |v_#race~count~0_13| 0) InVars {} OutVars{#race~count~0=|v_#race~count~0_13|} AuxVars[] AssignedVars[#race~count~0][210], [Black: 317#true, 319#(= |#race~count~0| 0), 323#true, 314#true, 133#thr1Err2ASSERT_VIOLATIONDATA_RACEtrue, 71#L709true, thr1Thread1of3ForFork1InUse, 265#L708-2true, 227#L736-4true, thr2Thread1of3ForFork0InUse, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse, 48#thr2Err4ASSERT_VIOLATIONDATA_RACEtrue]) [2023-11-29 07:04:51,083 INFO L294 olderBase$Statistics]: this new event has 117 ancestors and is not cut-off event [2023-11-29 07:04:51,083 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is not cut-off event [2023-11-29 07:04:51,083 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is not cut-off event [2023-11-29 07:04:51,083 INFO L297 olderBase$Statistics]: existing Event has 117 ancestors and is not cut-off event