./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/26_stack_cas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU --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 3df48c747d95355ac505f3aa498934ae4a3962ec64d7e6dbfdd54f02fbeda355 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:02:05,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:02:05,474 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:02:05,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:02:05,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:02:05,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:02:05,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:02:05,507 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:02:05,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:02:05,508 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:02:05,509 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:02:05,509 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:02:05,510 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:02:05,510 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:02:05,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:02:05,511 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:02:05,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:02:05,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:02:05,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:02:05,513 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:02:05,513 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:02:05,514 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:02:05,514 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:02:05,515 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:02:05,515 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:02:05,516 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:02:05,516 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:02:05,516 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:02:05,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:02:05,517 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:02:05,518 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:02:05,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:05,519 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:02:05,519 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:02:05,519 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:02:05,520 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:02:05,520 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:02:05,520 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:02:05,521 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:02:05,521 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:02:05,521 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:02:05,522 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_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df48c747d95355ac505f3aa498934ae4a3962ec64d7e6dbfdd54f02fbeda355 [2024-10-31 22:02:05,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:02:05,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:02:05,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:02:05,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:02:05,861 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:02:05,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-ext/26_stack_cas.i Unable to find full path for "g++" [2024-10-31 22:02:08,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:02:08,723 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:02:08,724 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/sv-benchmarks/c/pthread-ext/26_stack_cas.i [2024-10-31 22:02:08,739 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/data/43b455724/5d8a55d98b4546dda3c60c90efa7fe1a/FLAGcac1f1514 [2024-10-31 22:02:09,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/data/43b455724/5d8a55d98b4546dda3c60c90efa7fe1a [2024-10-31 22:02:09,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:02:09,034 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:02:09,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:09,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:02:09,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:02:09,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:09,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a725df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09, skipping insertion in model container [2024-10-31 22:02:09,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:09,100 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:02:09,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:09,813 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:02:09,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:09,967 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:02:09,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09 WrapperNode [2024-10-31 22:02:09,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:09,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:09,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:02:09,971 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:02:09,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:10,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:10,071 INFO L138 Inliner]: procedures = 179, calls = 47, calls flagged for inlining = 17, calls inlined = 20, statements flattened = 387 [2024-10-31 22:02:10,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:10,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:02:10,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:02:10,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:02:10,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:10,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:10,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:10,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:10,131 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:10,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:10,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:10,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:10,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:02:10,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:02:10,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:02:10,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:02:10,171 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (1/1) ... [2024-10-31 22:02:10,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:10,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:10,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:10,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a085d533-3920-4da0-86bd-73544176f260/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:02:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:02:10,261 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-31 22:02:10,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-31 22:02:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:02:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:02:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:02:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:02:10,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:02:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:02:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:02:10,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:02:10,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:02:10,265 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:02:10,457 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:02:10,460 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:02:11,323 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:02:11,323 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:02:11,742 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:02:11,742 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 22:02:11,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:11 BoogieIcfgContainer [2024-10-31 22:02:11,743 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:02:11,747 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:02:11,747 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:02:11,750 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:02:11,751 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:02:09" (1/3) ... [2024-10-31 22:02:11,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c09ce1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:11, skipping insertion in model container [2024-10-31 22:02:11,752 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:09" (2/3) ... [2024-10-31 22:02:11,752 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c09ce1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:11, skipping insertion in model container [2024-10-31 22:02:11,753 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:11" (3/3) ... [2024-10-31 22:02:11,754 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas.i [2024-10-31 22:02:11,775 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:02:11,775 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-31 22:02:11,775 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:02:11,928 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:02:11,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 235 places, 242 transitions, 488 flow [2024-10-31 22:02:12,073 INFO L124 PetriNetUnfolderBase]: 11/251 cut-off events. [2024-10-31 22:02:12,073 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:02:12,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255 conditions, 251 events. 11/251 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 252 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 155. Up to 4 conditions per place. [2024-10-31 22:02:12,081 INFO L82 GeneralOperation]: Start removeDead. Operand has 235 places, 242 transitions, 488 flow [2024-10-31 22:02:12,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 235 places, 242 transitions, 488 flow [2024-10-31 22:02:12,103 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:02:12,112 INFO L333 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, 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;@603c53cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:02:12,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-10-31 22:02:12,140 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:02:12,140 INFO L124 PetriNetUnfolderBase]: 1/97 cut-off events. [2024-10-31 22:02:12,140 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:02:12,140 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:12,141 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:12,142 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-10-31 22:02:12,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:12,147 INFO L85 PathProgramCache]: Analyzing trace with hash -2145937254, now seen corresponding path program 1 times [2024-10-31 22:02:12,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:12,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627435304] [2024-10-31 22:02:12,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:12,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:13,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:13,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:13,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627435304] [2024-10-31 22:02:13,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627435304] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:13,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:13,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:02:13,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084731378] [2024-10-31 22:02:13,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:13,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:02:13,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:13,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:02:13,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:02:13,368 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 211 out of 242 [2024-10-31 22:02:13,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 242 transitions, 488 flow. Second operand has 2 states, 2 states have (on average 212.0) internal successors, (424), 2 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:13,376 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:13,376 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 211 of 242 [2024-10-31 22:02:13,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:13,563 INFO L124 PetriNetUnfolderBase]: 5/218 cut-off events. [2024-10-31 22:02:13,563 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:02:13,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 218 events. 5/218 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 152 event pairs, 0 based on Foata normal form. 9/212 useless extension candidates. Maximal degree in co-relation 135. Up to 10 conditions per place. [2024-10-31 22:02:13,567 INFO L140 encePairwiseOnDemand]: 220/242 looper letters, 9 selfloop transitions, 0 changer transitions 0/214 dead transitions. [2024-10-31 22:02:13,567 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 214 transitions, 450 flow [2024-10-31 22:02:13,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:02:13,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:02:13,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 453 transitions. [2024-10-31 22:02:13,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9359504132231405 [2024-10-31 22:02:13,599 INFO L175 Difference]: Start difference. First operand has 235 places, 242 transitions, 488 flow. Second operand 2 states and 453 transitions. [2024-10-31 22:02:13,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 214 transitions, 450 flow [2024-10-31 22:02:13,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 214 transitions, 450 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:13,609 INFO L231 Difference]: Finished difference. Result has 213 places, 214 transitions, 432 flow [2024-10-31 22:02:13,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=214, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=432, PETRI_PLACES=213, PETRI_TRANSITIONS=214} [2024-10-31 22:02:13,618 INFO L277 CegarLoopForPetriNet]: 235 programPoint places, -22 predicate places. [2024-10-31 22:02:13,618 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 214 transitions, 432 flow [2024-10-31 22:02:13,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 212.0) internal successors, (424), 2 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:13,619 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:13,620 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:13,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:02:13,621 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-10-31 22:02:13,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:13,621 INFO L85 PathProgramCache]: Analyzing trace with hash -661363427, now seen corresponding path program 1 times [2024-10-31 22:02:13,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:13,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255670020] [2024-10-31 22:02:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:13,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:13,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:13,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:13,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255670020] [2024-10-31 22:02:13,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255670020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:13,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:13,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:13,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004421576] [2024-10-31 22:02:13,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:13,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:13,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:13,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:13,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:13,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 207 out of 242 [2024-10-31 22:02:13,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 214 transitions, 432 flow. Second operand has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:13,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:13,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 207 of 242 [2024-10-31 22:02:13,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:14,009 INFO L124 PetriNetUnfolderBase]: 8/314 cut-off events. [2024-10-31 22:02:14,009 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:02:14,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 314 events. 8/314 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 459 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 335. Up to 11 conditions per place. [2024-10-31 22:02:14,012 INFO L140 encePairwiseOnDemand]: 239/242 looper letters, 17 selfloop transitions, 2 changer transitions 0/220 dead transitions. [2024-10-31 22:02:14,012 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 220 transitions, 482 flow [2024-10-31 22:02:14,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:14,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:14,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 641 transitions. [2024-10-31 22:02:14,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8829201101928374 [2024-10-31 22:02:14,019 INFO L175 Difference]: Start difference. First operand has 213 places, 214 transitions, 432 flow. Second operand 3 states and 641 transitions. [2024-10-31 22:02:14,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 220 transitions, 482 flow [2024-10-31 22:02:14,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 214 places, 220 transitions, 482 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:14,028 INFO L231 Difference]: Finished difference. Result has 214 places, 213 transitions, 434 flow [2024-10-31 22:02:14,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=242, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=214, PETRI_TRANSITIONS=213} [2024-10-31 22:02:14,029 INFO L277 CegarLoopForPetriNet]: 235 programPoint places, -21 predicate places. [2024-10-31 22:02:14,029 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 213 transitions, 434 flow [2024-10-31 22:02:14,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 208.33333333333334) internal successors, (625), 3 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:14,030 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:14,031 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:14,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:02:14,032 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-10-31 22:02:14,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:14,033 INFO L85 PathProgramCache]: Analyzing trace with hash -844834623, now seen corresponding path program 1 times [2024-10-31 22:02:14,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:14,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710009915] [2024-10-31 22:02:14,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:14,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:14,115 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:14,184 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:14,184 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:02:14,186 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2024-10-31 22:02:14,190 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2024-10-31 22:02:14,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2024-10-31 22:02:14,191 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2024-10-31 22:02:14,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2024-10-31 22:02:14,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2024-10-31 22:02:14,194 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2024-10-31 22:02:14,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2024-10-31 22:02:14,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2024-10-31 22:02:14,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2024-10-31 22:02:14,195 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2024-10-31 22:02:14,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2024-10-31 22:02:14,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2024-10-31 22:02:14,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2024-10-31 22:02:14,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2024-10-31 22:02:14,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2024-10-31 22:02:14,199 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2024-10-31 22:02:14,200 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2024-10-31 22:02:14,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2024-10-31 22:02:14,201 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2024-10-31 22:02:14,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2024-10-31 22:02:14,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2024-10-31 22:02:14,202 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2024-10-31 22:02:14,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2024-10-31 22:02:14,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2024-10-31 22:02:14,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2024-10-31 22:02:14,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2024-10-31 22:02:14,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2024-10-31 22:02:14,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2024-10-31 22:02:14,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2024-10-31 22:02:14,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2024-10-31 22:02:14,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2024-10-31 22:02:14,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2024-10-31 22:02:14,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2024-10-31 22:02:14,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2024-10-31 22:02:14,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2024-10-31 22:02:14,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2024-10-31 22:02:14,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2024-10-31 22:02:14,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2024-10-31 22:02:14,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2024-10-31 22:02:14,208 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2024-10-31 22:02:14,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2024-10-31 22:02:14,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2024-10-31 22:02:14,209 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2024-10-31 22:02:14,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2024-10-31 22:02:14,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2024-10-31 22:02:14,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2024-10-31 22:02:14,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2024-10-31 22:02:14,212 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2024-10-31 22:02:14,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2024-10-31 22:02:14,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2024-10-31 22:02:14,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2024-10-31 22:02:14,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2024-10-31 22:02:14,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:02:14,217 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-31 22:02:14,220 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:02:14,221 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:02:14,373 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:02:14,379 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 373 places, 387 transitions, 784 flow [2024-10-31 22:02:14,499 INFO L124 PetriNetUnfolderBase]: 21/407 cut-off events. [2024-10-31 22:02:14,500 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:02:14,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 415 conditions, 407 events. 21/407 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 995 event pairs, 0 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 299. Up to 6 conditions per place. [2024-10-31 22:02:14,509 INFO L82 GeneralOperation]: Start removeDead. Operand has 373 places, 387 transitions, 784 flow [2024-10-31 22:02:14,519 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 373 places, 387 transitions, 784 flow [2024-10-31 22:02:14,520 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:02:14,524 INFO L333 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, 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;@603c53cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:02:14,525 INFO L334 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-10-31 22:02:14,539 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:02:14,540 INFO L124 PetriNetUnfolderBase]: 1/97 cut-off events. [2024-10-31 22:02:14,540 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:02:14,540 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:14,540 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:14,540 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2024-10-31 22:02:14,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:14,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1831473046, now seen corresponding path program 1 times [2024-10-31 22:02:14,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:14,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015604159] [2024-10-31 22:02:14,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:14,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:14,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:14,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:14,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015604159] [2024-10-31 22:02:14,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015604159] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:14,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:14,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:02:14,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065175508] [2024-10-31 22:02:14,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:14,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:02:14,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:14,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:02:14,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:02:15,001 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 387 [2024-10-31 22:02:15,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 387 transitions, 784 flow. Second operand has 2 states, 2 states have (on average 328.0) internal successors, (656), 2 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:15,003 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:15,003 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 387 [2024-10-31 22:02:15,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:15,620 INFO L124 PetriNetUnfolderBase]: 123/1470 cut-off events. [2024-10-31 22:02:15,621 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-31 22:02:15,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1657 conditions, 1470 events. 123/1470 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 9005 event pairs, 52 based on Foata normal form. 111/1409 useless extension candidates. Maximal degree in co-relation 1390. Up to 161 conditions per place. [2024-10-31 22:02:15,636 INFO L140 encePairwiseOnDemand]: 345/387 looper letters, 18 selfloop transitions, 0 changer transitions 0/336 dead transitions. [2024-10-31 22:02:15,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 336 transitions, 718 flow [2024-10-31 22:02:15,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:02:15,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:02:15,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 714 transitions. [2024-10-31 22:02:15,641 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9224806201550387 [2024-10-31 22:02:15,641 INFO L175 Difference]: Start difference. First operand has 373 places, 387 transitions, 784 flow. Second operand 2 states and 714 transitions. [2024-10-31 22:02:15,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 336 transitions, 718 flow [2024-10-31 22:02:15,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 332 places, 336 transitions, 718 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:15,649 INFO L231 Difference]: Finished difference. Result has 332 places, 336 transitions, 682 flow [2024-10-31 22:02:15,650 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=387, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=336, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=682, PETRI_PLACES=332, PETRI_TRANSITIONS=336} [2024-10-31 22:02:15,651 INFO L277 CegarLoopForPetriNet]: 373 programPoint places, -41 predicate places. [2024-10-31 22:02:15,652 INFO L471 AbstractCegarLoop]: Abstraction has has 332 places, 336 transitions, 682 flow [2024-10-31 22:02:15,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 328.0) internal successors, (656), 2 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:15,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:15,653 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:15,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:02:15,654 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2024-10-31 22:02:15,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:15,654 INFO L85 PathProgramCache]: Analyzing trace with hash 891046733, now seen corresponding path program 1 times [2024-10-31 22:02:15,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:15,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627907718] [2024-10-31 22:02:15,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:15,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:15,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:15,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:15,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627907718] [2024-10-31 22:02:15,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627907718] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:15,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:15,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:15,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321739380] [2024-10-31 22:02:15,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:15,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:15,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:15,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:15,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:15,772 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 319 out of 387 [2024-10-31 22:02:15,774 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 336 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:15,774 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:15,774 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 319 of 387 [2024-10-31 22:02:15,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:17,059 INFO L124 PetriNetUnfolderBase]: 398/4054 cut-off events. [2024-10-31 22:02:17,059 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-31 22:02:17,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4678 conditions, 4054 events. 398/4054 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 36264 event pairs, 95 based on Foata normal form. 0/3574 useless extension candidates. Maximal degree in co-relation 4673. Up to 290 conditions per place. [2024-10-31 22:02:17,107 INFO L140 encePairwiseOnDemand]: 379/387 looper letters, 43 selfloop transitions, 6 changer transitions 0/359 dead transitions. [2024-10-31 22:02:17,108 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 359 transitions, 831 flow [2024-10-31 22:02:17,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:17,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:02:17,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1008 transitions. [2024-10-31 22:02:17,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8682170542635659 [2024-10-31 22:02:17,114 INFO L175 Difference]: Start difference. First operand has 332 places, 336 transitions, 682 flow. Second operand 3 states and 1008 transitions. [2024-10-31 22:02:17,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 359 transitions, 831 flow [2024-10-31 22:02:17,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 359 transitions, 831 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:17,124 INFO L231 Difference]: Finished difference. Result has 336 places, 342 transitions, 734 flow [2024-10-31 22:02:17,125 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=387, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=336, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=330, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=734, PETRI_PLACES=336, PETRI_TRANSITIONS=342} [2024-10-31 22:02:17,127 INFO L277 CegarLoopForPetriNet]: 373 programPoint places, -37 predicate places. [2024-10-31 22:02:17,127 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 342 transitions, 734 flow [2024-10-31 22:02:17,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 320.3333333333333) internal successors, (961), 3 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:17,129 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:17,130 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:17,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:02:17,130 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2024-10-31 22:02:17,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:17,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1376374105, now seen corresponding path program 1 times [2024-10-31 22:02:17,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:17,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565644343] [2024-10-31 22:02:17,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:17,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:17,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:02:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:02:17,247 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:02:17,248 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:02:17,248 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (78 of 79 remaining) [2024-10-31 22:02:17,249 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2024-10-31 22:02:17,249 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2024-10-31 22:02:17,249 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2024-10-31 22:02:17,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2024-10-31 22:02:17,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2024-10-31 22:02:17,250 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2024-10-31 22:02:17,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2024-10-31 22:02:17,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2024-10-31 22:02:17,251 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2024-10-31 22:02:17,252 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2024-10-31 22:02:17,253 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2024-10-31 22:02:17,253 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2024-10-31 22:02:17,253 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2024-10-31 22:02:17,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2024-10-31 22:02:17,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2024-10-31 22:02:17,254 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2024-10-31 22:02:17,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2024-10-31 22:02:17,256 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2024-10-31 22:02:17,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2024-10-31 22:02:17,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2024-10-31 22:02:17,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2024-10-31 22:02:17,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2024-10-31 22:02:17,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2024-10-31 22:02:17,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2024-10-31 22:02:17,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2024-10-31 22:02:17,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2024-10-31 22:02:17,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2024-10-31 22:02:17,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2024-10-31 22:02:17,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2024-10-31 22:02:17,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2024-10-31 22:02:17,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2024-10-31 22:02:17,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2024-10-31 22:02:17,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2024-10-31 22:02:17,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2024-10-31 22:02:17,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2024-10-31 22:02:17,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2024-10-31 22:02:17,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2024-10-31 22:02:17,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2024-10-31 22:02:17,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2024-10-31 22:02:17,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2024-10-31 22:02:17,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2024-10-31 22:02:17,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2024-10-31 22:02:17,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2024-10-31 22:02:17,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2024-10-31 22:02:17,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2024-10-31 22:02:17,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2024-10-31 22:02:17,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (31 of 79 remaining) [2024-10-31 22:02:17,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 79 remaining) [2024-10-31 22:02:17,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (29 of 79 remaining) [2024-10-31 22:02:17,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2024-10-31 22:02:17,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2024-10-31 22:02:17,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2024-10-31 22:02:17,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2024-10-31 22:02:17,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2024-10-31 22:02:17,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2024-10-31 22:02:17,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2024-10-31 22:02:17,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2024-10-31 22:02:17,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2024-10-31 22:02:17,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2024-10-31 22:02:17,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2024-10-31 22:02:17,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2024-10-31 22:02:17,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2024-10-31 22:02:17,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2024-10-31 22:02:17,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2024-10-31 22:02:17,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2024-10-31 22:02:17,276 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2024-10-31 22:02:17,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2024-10-31 22:02:17,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2024-10-31 22:02:17,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2024-10-31 22:02:17,277 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2024-10-31 22:02:17,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2024-10-31 22:02:17,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2024-10-31 22:02:17,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2024-10-31 22:02:17,278 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2024-10-31 22:02:17,279 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2024-10-31 22:02:17,279 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2024-10-31 22:02:17,279 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2024-10-31 22:02:17,280 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2024-10-31 22:02:17,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:02:17,281 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-31 22:02:17,282 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:02:17,282 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-31 22:02:17,481 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:02:17,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 511 places, 532 transitions, 1082 flow [2024-10-31 22:02:17,721 INFO L124 PetriNetUnfolderBase]: 31/563 cut-off events. [2024-10-31 22:02:17,721 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:02:17,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 563 events. 31/563 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1904 event pairs, 0 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 443. Up to 8 conditions per place. [2024-10-31 22:02:17,735 INFO L82 GeneralOperation]: Start removeDead. Operand has 511 places, 532 transitions, 1082 flow [2024-10-31 22:02:17,753 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 511 places, 532 transitions, 1082 flow [2024-10-31 22:02:17,754 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:02:17,758 INFO L333 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, 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;@603c53cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:02:17,758 INFO L334 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2024-10-31 22:02:17,770 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:02:17,774 INFO L124 PetriNetUnfolderBase]: 1/97 cut-off events. [2024-10-31 22:02:17,774 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:02:17,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:17,775 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:17,775 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2024-10-31 22:02:17,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:17,777 INFO L85 PathProgramCache]: Analyzing trace with hash -788848646, now seen corresponding path program 1 times [2024-10-31 22:02:17,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:17,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005141217] [2024-10-31 22:02:17,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:17,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:18,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:18,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:18,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005141217] [2024-10-31 22:02:18,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005141217] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:18,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:18,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:02:18,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18488159] [2024-10-31 22:02:18,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:18,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:02:18,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:18,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:02:18,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:02:18,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 443 out of 532 [2024-10-31 22:02:18,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 511 places, 532 transitions, 1082 flow. Second operand has 2 states, 2 states have (on average 444.0) internal successors, (888), 2 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:18,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:18,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 443 of 532 [2024-10-31 22:02:18,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:22,497 INFO L124 PetriNetUnfolderBase]: 1850/13384 cut-off events. [2024-10-31 22:02:22,497 INFO L125 PetriNetUnfolderBase]: For 391/391 co-relation queries the response was YES. [2024-10-31 22:02:22,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15857 conditions, 13384 events. 1850/13384 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 151525 event pairs, 962 based on Foata normal form. 1268/13081 useless extension candidates. Maximal degree in co-relation 13835. Up to 2202 conditions per place. [2024-10-31 22:02:22,756 INFO L140 encePairwiseOnDemand]: 470/532 looper letters, 27 selfloop transitions, 0 changer transitions 0/458 dead transitions. [2024-10-31 22:02:22,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 451 places, 458 transitions, 988 flow [2024-10-31 22:02:22,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:02:22,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:02:22,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 975 transitions. [2024-10-31 22:02:22,761 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9163533834586466 [2024-10-31 22:02:22,761 INFO L175 Difference]: Start difference. First operand has 511 places, 532 transitions, 1082 flow. Second operand 2 states and 975 transitions. [2024-10-31 22:02:22,761 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 451 places, 458 transitions, 988 flow [2024-10-31 22:02:22,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 451 places, 458 transitions, 986 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-31 22:02:22,779 INFO L231 Difference]: Finished difference. Result has 451 places, 458 transitions, 932 flow [2024-10-31 22:02:22,780 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=532, PETRI_DIFFERENCE_MINUEND_FLOW=932, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=458, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=932, PETRI_PLACES=451, PETRI_TRANSITIONS=458} [2024-10-31 22:02:22,782 INFO L277 CegarLoopForPetriNet]: 511 programPoint places, -60 predicate places. [2024-10-31 22:02:22,782 INFO L471 AbstractCegarLoop]: Abstraction has has 451 places, 458 transitions, 932 flow [2024-10-31 22:02:22,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 444.0) internal successors, (888), 2 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:22,784 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:02:22,784 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:22,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:02:22,785 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2024-10-31 22:02:22,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:22,786 INFO L85 PathProgramCache]: Analyzing trace with hash 2125732189, now seen corresponding path program 1 times [2024-10-31 22:02:22,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:22,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390575490] [2024-10-31 22:02:22,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:22,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:22,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:22,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:22,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390575490] [2024-10-31 22:02:22,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390575490] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:22,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:22,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:22,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108745548] [2024-10-31 22:02:22,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:22,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:22,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:22,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:22,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:22,927 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 532 [2024-10-31 22:02:22,930 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 458 transitions, 932 flow. Second operand has 3 states, 3 states have (on average 432.3333333333333) internal successors, (1297), 3 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:02:22,930 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:02:22,930 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 532 [2024-10-31 22:02:22,930 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:02:37,363 INFO L124 PetriNetUnfolderBase]: 9817/60706 cut-off events. [2024-10-31 22:02:37,363 INFO L125 PetriNetUnfolderBase]: For 718/718 co-relation queries the response was YES.