./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:00:33,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:00:33,335 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 23:00:33,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:00:33,352 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:00:33,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:00:33,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:00:33,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:00:33,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:00:33,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:00:33,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:00:33,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:00:33,413 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:00:33,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:00:33,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:00:33,417 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:00:33,417 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:00:33,418 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:00:33,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:00:33,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:00:33,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:00:33,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:00:33,421 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 23:00:33,421 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:00:33,422 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:00:33,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:00:33,423 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:00:33,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:00:33,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:00:33,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:00:33,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:00:33,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:00:33,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:00:33,427 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:00:33,428 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:00:33,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:00:33,428 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:00:33,429 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:00:33,429 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:00:33,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:00:33,430 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:00:33,430 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_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1bf1a57452cb04c4e0acc7059a368e9894233cf719b7dca68f11bd8477a0c6ed [2023-11-06 23:00:33,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:00:33,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:00:33,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:00:33,776 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:00:33,777 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:00:33,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2023-11-06 23:00:37,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:00:37,457 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:00:37,458 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/sv-benchmarks/c/goblint-regression/02-base_25-malloc_race_cp.i [2023-11-06 23:00:37,485 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/data/05471d58b/0d7ba3a4123641659870c80b38867ac4/FLAGb81930224 [2023-11-06 23:00:37,500 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/data/05471d58b/0d7ba3a4123641659870c80b38867ac4 [2023-11-06 23:00:37,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:00:37,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:00:37,514 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:00:37,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:00:37,520 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:00:37,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:00:37" (1/1) ... [2023-11-06 23:00:37,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@439055e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:37, skipping insertion in model container [2023-11-06 23:00:37,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:00:37" (1/1) ... [2023-11-06 23:00:37,601 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:00:38,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:00:38,380 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:00:38,431 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:00:38,550 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:00:38,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38 WrapperNode [2023-11-06 23:00:38,550 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:00:38,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:00:38,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:00:38,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:00:38,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (1/1) ... [2023-11-06 23:00:38,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (1/1) ... [2023-11-06 23:00:38,662 INFO L138 Inliner]: procedures = 365, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2023-11-06 23:00:38,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:00:38,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:00:38,664 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:00:38,664 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:00:38,675 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (1/1) ... [2023-11-06 23:00:38,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (1/1) ... [2023-11-06 23:00:38,680 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (1/1) ... [2023-11-06 23:00:38,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (1/1) ... [2023-11-06 23:00:38,699 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (1/1) ... [2023-11-06 23:00:38,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (1/1) ... [2023-11-06 23:00:38,704 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (1/1) ... [2023-11-06 23:00:38,705 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (1/1) ... [2023-11-06 23:00:38,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:00:38,711 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:00:38,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:00:38,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:00:38,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (1/1) ... [2023-11-06 23:00:38,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:00:38,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:00:38,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:00:38,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:00:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:00:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:00:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:00:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:00:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 23:00:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:00:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:00:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 23:00:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 23:00:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:00:38,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:00:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:00:38,809 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:00:39,034 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:00:39,037 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:00:39,321 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:00:39,331 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:00:39,332 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 23:00:39,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:00:39 BoogieIcfgContainer [2023-11-06 23:00:39,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:00:39,350 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:00:39,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:00:39,355 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:00:39,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:00:37" (1/3) ... [2023-11-06 23:00:39,356 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ae58d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:00:39, skipping insertion in model container [2023-11-06 23:00:39,356 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:00:38" (2/3) ... [2023-11-06 23:00:39,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ae58d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:00:39, skipping insertion in model container [2023-11-06 23:00:39,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:00:39" (3/3) ... [2023-11-06 23:00:39,359 INFO L112 eAbstractionObserver]: Analyzing ICFG 02-base_25-malloc_race_cp.i [2023-11-06 23:00:39,372 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:00:39,385 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:00:39,386 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-06 23:00:39,386 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:00:39,477 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:00:39,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 102 transitions, 208 flow [2023-11-06 23:00:39,595 INFO L124 PetriNetUnfolderBase]: 0/101 cut-off events. [2023-11-06 23:00:39,595 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:00:39,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 23:00:39,599 INFO L82 GeneralOperation]: Start removeDead. Operand has 106 places, 102 transitions, 208 flow [2023-11-06 23:00:39,605 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 105 places, 101 transitions, 205 flow [2023-11-06 23:00:39,610 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:00:39,621 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 101 transitions, 205 flow [2023-11-06 23:00:39,625 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 101 transitions, 205 flow [2023-11-06 23:00:39,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 105 places, 101 transitions, 205 flow [2023-11-06 23:00:39,660 INFO L124 PetriNetUnfolderBase]: 0/101 cut-off events. [2023-11-06 23:00:39,660 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:00:39,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 101 events. 0/101 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 76 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 23:00:39,664 INFO L119 LiptonReduction]: Number of co-enabled transitions 1920 [2023-11-06 23:00:43,793 INFO L134 LiptonReduction]: Checked pairs total: 14093 [2023-11-06 23:00:43,797 INFO L136 LiptonReduction]: Total number of compositions: 77 [2023-11-06 23:00:43,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:00:43,842 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4d05fb6f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:00:43,842 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-06 23:00:43,844 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:00:43,844 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 23:00:43,844 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:00:43,845 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:43,845 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 23:00:43,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 23:00:43,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:43,855 INFO L85 PathProgramCache]: Analyzing trace with hash 337, now seen corresponding path program 1 times [2023-11-06 23:00:43,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:43,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671528647] [2023-11-06 23:00:43,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:43,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:44,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:00:44,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:44,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671528647] [2023-11-06 23:00:44,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671528647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:44,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:44,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 23:00:44,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008979794] [2023-11-06 23:00:44,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:44,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:00:44,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:44,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:00:44,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:00:44,087 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 179 [2023-11-06 23:00:44,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 44 transitions, 91 flow. Second operand has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:44,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:00:44,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 179 [2023-11-06 23:00:44,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:00:44,221 INFO L124 PetriNetUnfolderBase]: 35/200 cut-off events. [2023-11-06 23:00:44,221 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:00:44,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 289 conditions, 200 events. 35/200 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 841 event pairs, 35 based on Foata normal form. 5/193 useless extension candidates. Maximal degree in co-relation 280. Up to 85 conditions per place. [2023-11-06 23:00:44,231 INFO L140 encePairwiseOnDemand]: 175/179 looper letters, 14 selfloop transitions, 0 changer transitions 0/40 dead transitions. [2023-11-06 23:00:44,232 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 40 transitions, 111 flow [2023-11-06 23:00:44,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:00:44,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 23:00:44,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 220 transitions. [2023-11-06 23:00:44,255 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6145251396648045 [2023-11-06 23:00:44,256 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 220 transitions. [2023-11-06 23:00:44,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 220 transitions. [2023-11-06 23:00:44,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:00:44,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 220 transitions. [2023-11-06 23:00:44,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 110.0) internal successors, (220), 2 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:44,281 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:44,282 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:44,284 INFO L175 Difference]: Start difference. First operand has 48 places, 44 transitions, 91 flow. Second operand 2 states and 220 transitions. [2023-11-06 23:00:44,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 40 transitions, 111 flow [2023-11-06 23:00:44,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 40 transitions, 110 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:00:44,291 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 82 flow [2023-11-06 23:00:44,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=82, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2023-11-06 23:00:44,301 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -4 predicate places. [2023-11-06 23:00:44,302 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 82 flow [2023-11-06 23:00:44,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:44,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:44,303 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 23:00:44,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:00:44,304 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 23:00:44,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:44,304 INFO L85 PathProgramCache]: Analyzing trace with hash 324012270, now seen corresponding path program 1 times [2023-11-06 23:00:44,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:44,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686372530] [2023-11-06 23:00:44,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:44,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:44,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:44,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:00:44,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:44,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686372530] [2023-11-06 23:00:44,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686372530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:44,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:44,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:00:44,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347839183] [2023-11-06 23:00:44,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:44,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:00:44,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:44,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:00:44,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:00:44,545 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 179 [2023-11-06 23:00:44,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 40 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:44,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:00:44,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 179 [2023-11-06 23:00:44,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:00:44,647 INFO L124 PetriNetUnfolderBase]: 48/231 cut-off events. [2023-11-06 23:00:44,648 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:00:44,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 231 events. 48/231 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1016 event pairs, 31 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 345. Up to 106 conditions per place. [2023-11-06 23:00:44,651 INFO L140 encePairwiseOnDemand]: 175/179 looper letters, 18 selfloop transitions, 2 changer transitions 0/42 dead transitions. [2023-11-06 23:00:44,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 42 transitions, 126 flow [2023-11-06 23:00:44,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:00:44,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:00:44,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 304 transitions. [2023-11-06 23:00:44,655 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5661080074487895 [2023-11-06 23:00:44,656 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 304 transitions. [2023-11-06 23:00:44,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 304 transitions. [2023-11-06 23:00:44,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:00:44,657 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 304 transitions. [2023-11-06 23:00:44,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:44,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:44,662 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:44,662 INFO L175 Difference]: Start difference. First operand has 44 places, 40 transitions, 82 flow. Second operand 3 states and 304 transitions. [2023-11-06 23:00:44,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 42 transitions, 126 flow [2023-11-06 23:00:44,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 42 transitions, 126 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:00:44,665 INFO L231 Difference]: Finished difference. Result has 45 places, 40 transitions, 92 flow [2023-11-06 23:00:44,665 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=45, PETRI_TRANSITIONS=40} [2023-11-06 23:00:44,666 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, -3 predicate places. [2023-11-06 23:00:44,667 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 40 transitions, 92 flow [2023-11-06 23:00:44,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:44,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:44,668 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:44,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:00:44,668 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 23:00:44,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:44,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1621764314, now seen corresponding path program 1 times [2023-11-06 23:00:44,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:44,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048741860] [2023-11-06 23:00:44,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:44,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:44,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:45,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:00:45,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:45,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048741860] [2023-11-06 23:00:45,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048741860] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:45,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:45,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:00:45,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242156572] [2023-11-06 23:00:45,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:45,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:00:45,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:45,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:00:45,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:00:45,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 179 [2023-11-06 23:00:45,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 40 transitions, 92 flow. Second operand has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:45,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:00:45,506 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 179 [2023-11-06 23:00:45,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:00:45,820 INFO L124 PetriNetUnfolderBase]: 258/616 cut-off events. [2023-11-06 23:00:45,820 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-06 23:00:45,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1207 conditions, 616 events. 258/616 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2922 event pairs, 127 based on Foata normal form. 0/596 useless extension candidates. Maximal degree in co-relation 1203. Up to 421 conditions per place. [2023-11-06 23:00:45,829 INFO L140 encePairwiseOnDemand]: 164/179 looper letters, 63 selfloop transitions, 37 changer transitions 0/108 dead transitions. [2023-11-06 23:00:45,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 108 transitions, 436 flow [2023-11-06 23:00:45,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:00:45,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:00:45,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 567 transitions. [2023-11-06 23:00:45,834 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5279329608938548 [2023-11-06 23:00:45,834 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 567 transitions. [2023-11-06 23:00:45,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 567 transitions. [2023-11-06 23:00:45,835 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:00:45,835 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 567 transitions. [2023-11-06 23:00:45,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 94.5) internal successors, (567), 6 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:45,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:45,844 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:45,844 INFO L175 Difference]: Start difference. First operand has 45 places, 40 transitions, 92 flow. Second operand 6 states and 567 transitions. [2023-11-06 23:00:45,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 108 transitions, 436 flow [2023-11-06 23:00:45,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 108 transitions, 436 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:00:45,849 INFO L231 Difference]: Finished difference. Result has 54 places, 78 transitions, 325 flow [2023-11-06 23:00:45,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=325, PETRI_PLACES=54, PETRI_TRANSITIONS=78} [2023-11-06 23:00:45,851 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 6 predicate places. [2023-11-06 23:00:45,851 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 78 transitions, 325 flow [2023-11-06 23:00:45,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:45,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:45,852 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:45,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:00:45,852 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 23:00:45,853 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:45,853 INFO L85 PathProgramCache]: Analyzing trace with hash -882803588, now seen corresponding path program 1 times [2023-11-06 23:00:45,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:45,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453079133] [2023-11-06 23:00:45,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:45,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:46,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:00:46,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:46,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453079133] [2023-11-06 23:00:46,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453079133] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:46,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:46,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:00:46,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995327524] [2023-11-06 23:00:46,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:46,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:00:46,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:46,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:00:46,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:00:46,315 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 179 [2023-11-06 23:00:46,316 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 78 transitions, 325 flow. Second operand has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:46,316 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:00:46,316 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 179 [2023-11-06 23:00:46,317 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:00:46,715 INFO L124 PetriNetUnfolderBase]: 342/881 cut-off events. [2023-11-06 23:00:46,716 INFO L125 PetriNetUnfolderBase]: For 283/302 co-relation queries the response was YES. [2023-11-06 23:00:46,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2278 conditions, 881 events. 342/881 cut-off events. For 283/302 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 5114 event pairs, 46 based on Foata normal form. 25/894 useless extension candidates. Maximal degree in co-relation 2269. Up to 368 conditions per place. [2023-11-06 23:00:46,727 INFO L140 encePairwiseOnDemand]: 164/179 looper letters, 86 selfloop transitions, 48 changer transitions 0/162 dead transitions. [2023-11-06 23:00:46,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 162 transitions, 857 flow [2023-11-06 23:00:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:00:46,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:00:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 611 transitions. [2023-11-06 23:00:46,732 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.568901303538175 [2023-11-06 23:00:46,733 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 611 transitions. [2023-11-06 23:00:46,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 611 transitions. [2023-11-06 23:00:46,734 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:00:46,734 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 611 transitions. [2023-11-06 23:00:46,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 101.83333333333333) internal successors, (611), 6 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:46,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:46,743 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:46,743 INFO L175 Difference]: Start difference. First operand has 54 places, 78 transitions, 325 flow. Second operand 6 states and 611 transitions. [2023-11-06 23:00:46,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 162 transitions, 857 flow [2023-11-06 23:00:46,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 162 transitions, 857 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:00:46,756 INFO L231 Difference]: Finished difference. Result has 63 places, 120 transitions, 671 flow [2023-11-06 23:00:46,756 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=325, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=671, PETRI_PLACES=63, PETRI_TRANSITIONS=120} [2023-11-06 23:00:46,758 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 15 predicate places. [2023-11-06 23:00:46,758 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 120 transitions, 671 flow [2023-11-06 23:00:46,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 85.5) internal successors, (513), 6 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:46,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:46,760 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:46,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:00:46,760 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 23:00:46,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:46,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1138866300, now seen corresponding path program 1 times [2023-11-06 23:00:46,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:46,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777770988] [2023-11-06 23:00:46,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:46,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:46,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:00:46,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:46,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777770988] [2023-11-06 23:00:46,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777770988] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:46,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:46,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:00:46,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847410923] [2023-11-06 23:00:46,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:46,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:00:46,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:46,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:00:46,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:00:46,881 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 96 out of 179 [2023-11-06 23:00:46,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 120 transitions, 671 flow. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:46,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:00:46,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 96 of 179 [2023-11-06 23:00:46,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:00:46,962 INFO L124 PetriNetUnfolderBase]: 40/176 cut-off events. [2023-11-06 23:00:46,962 INFO L125 PetriNetUnfolderBase]: For 108/112 co-relation queries the response was YES. [2023-11-06 23:00:46,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 477 conditions, 176 events. 40/176 cut-off events. For 108/112 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 664 event pairs, 5 based on Foata normal form. 11/183 useless extension candidates. Maximal degree in co-relation 463. Up to 59 conditions per place. [2023-11-06 23:00:46,965 INFO L140 encePairwiseOnDemand]: 175/179 looper letters, 15 selfloop transitions, 4 changer transitions 0/61 dead transitions. [2023-11-06 23:00:46,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 61 transitions, 313 flow [2023-11-06 23:00:46,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:00:46,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:00:46,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 305 transitions. [2023-11-06 23:00:46,968 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5679702048417132 [2023-11-06 23:00:46,968 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 305 transitions. [2023-11-06 23:00:46,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 305 transitions. [2023-11-06 23:00:46,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:00:46,969 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 305 transitions. [2023-11-06 23:00:46,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:46,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:46,973 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 179.0) internal successors, (716), 4 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:46,973 INFO L175 Difference]: Start difference. First operand has 63 places, 120 transitions, 671 flow. Second operand 3 states and 305 transitions. [2023-11-06 23:00:46,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 61 transitions, 313 flow [2023-11-06 23:00:46,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 265 flow, removed 17 selfloop flow, removed 7 redundant places. [2023-11-06 23:00:46,979 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 233 flow [2023-11-06 23:00:46,980 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2023-11-06 23:00:46,981 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 9 predicate places. [2023-11-06 23:00:46,981 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 233 flow [2023-11-06 23:00:46,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:46,982 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:46,982 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:46,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:00:46,982 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 23:00:46,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:46,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1605355749, now seen corresponding path program 1 times [2023-11-06 23:00:46,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:46,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610021115] [2023-11-06 23:00:46,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:46,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:47,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:00:47,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:47,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610021115] [2023-11-06 23:00:47,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610021115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:47,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:47,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:00:47,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600281061] [2023-11-06 23:00:47,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:47,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:00:47,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:47,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:00:47,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:00:47,422 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 179 [2023-11-06 23:00:47,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 233 flow. Second operand has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:47,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:00:47,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 179 [2023-11-06 23:00:47,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:00:47,638 INFO L124 PetriNetUnfolderBase]: 106/308 cut-off events. [2023-11-06 23:00:47,638 INFO L125 PetriNetUnfolderBase]: For 98/100 co-relation queries the response was YES. [2023-11-06 23:00:47,640 INFO L83 FinitePrefix]: Finished finitePrefix Result has 830 conditions, 308 events. 106/308 cut-off events. For 98/100 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1213 event pairs, 35 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 819. Up to 246 conditions per place. [2023-11-06 23:00:47,642 INFO L140 encePairwiseOnDemand]: 169/179 looper letters, 52 selfloop transitions, 21 changer transitions 4/84 dead transitions. [2023-11-06 23:00:47,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 84 transitions, 467 flow [2023-11-06 23:00:47,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:00:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:00:47,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 529 transitions. [2023-11-06 23:00:47,646 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4925512104283054 [2023-11-06 23:00:47,646 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 529 transitions. [2023-11-06 23:00:47,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 529 transitions. [2023-11-06 23:00:47,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:00:47,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 529 transitions. [2023-11-06 23:00:47,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 88.16666666666667) internal successors, (529), 6 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:47,653 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:47,654 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:47,654 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 233 flow. Second operand 6 states and 529 transitions. [2023-11-06 23:00:47,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 84 transitions, 467 flow [2023-11-06 23:00:47,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 84 transitions, 463 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:00:47,659 INFO L231 Difference]: Finished difference. Result has 65 places, 80 transitions, 385 flow [2023-11-06 23:00:47,659 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=385, PETRI_PLACES=65, PETRI_TRANSITIONS=80} [2023-11-06 23:00:47,660 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 17 predicate places. [2023-11-06 23:00:47,661 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 80 transitions, 385 flow [2023-11-06 23:00:47,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:47,662 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:47,662 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:47,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:00:47,662 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 23:00:47,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:47,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1209029816, now seen corresponding path program 1 times [2023-11-06 23:00:47,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:47,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952803958] [2023-11-06 23:00:47,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:47,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:47,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:00:47,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:47,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952803958] [2023-11-06 23:00:47,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952803958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:47,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:47,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:00:47,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538445925] [2023-11-06 23:00:47,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:47,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 23:00:47,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:47,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 23:00:47,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 23:00:48,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 179 [2023-11-06 23:00:48,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 80 transitions, 385 flow. Second operand has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:48,142 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:00:48,142 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 179 [2023-11-06 23:00:48,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:00:48,384 INFO L124 PetriNetUnfolderBase]: 163/417 cut-off events. [2023-11-06 23:00:48,384 INFO L125 PetriNetUnfolderBase]: For 188/190 co-relation queries the response was YES. [2023-11-06 23:00:48,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1351 conditions, 417 events. 163/417 cut-off events. For 188/190 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1827 event pairs, 17 based on Foata normal form. 0/396 useless extension candidates. Maximal degree in co-relation 1335. Up to 300 conditions per place. [2023-11-06 23:00:48,389 INFO L140 encePairwiseOnDemand]: 165/179 looper letters, 73 selfloop transitions, 45 changer transitions 11/140 dead transitions. [2023-11-06 23:00:48,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 140 transitions, 887 flow [2023-11-06 23:00:48,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 23:00:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 23:00:48,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 585 transitions. [2023-11-06 23:00:48,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5446927374301676 [2023-11-06 23:00:48,393 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 585 transitions. [2023-11-06 23:00:48,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 585 transitions. [2023-11-06 23:00:48,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:00:48,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 585 transitions. [2023-11-06 23:00:48,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:48,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:48,400 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 179.0) internal successors, (1253), 7 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:48,400 INFO L175 Difference]: Start difference. First operand has 65 places, 80 transitions, 385 flow. Second operand 6 states and 585 transitions. [2023-11-06 23:00:48,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 140 transitions, 887 flow [2023-11-06 23:00:48,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 140 transitions, 855 flow, removed 16 selfloop flow, removed 0 redundant places. [2023-11-06 23:00:48,408 INFO L231 Difference]: Finished difference. Result has 74 places, 113 transitions, 665 flow [2023-11-06 23:00:48,408 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=353, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=665, PETRI_PLACES=74, PETRI_TRANSITIONS=113} [2023-11-06 23:00:48,409 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 26 predicate places. [2023-11-06 23:00:48,410 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 113 transitions, 665 flow [2023-11-06 23:00:48,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 84.83333333333333) internal successors, (509), 6 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:48,410 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:48,411 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:48,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 23:00:48,411 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 23:00:48,412 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:48,412 INFO L85 PathProgramCache]: Analyzing trace with hash 284407675, now seen corresponding path program 1 times [2023-11-06 23:00:48,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:48,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251604264] [2023-11-06 23:00:48,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:48,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:48,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:00:48,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:48,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251604264] [2023-11-06 23:00:48,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251604264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:48,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:48,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:00:48,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606475069] [2023-11-06 23:00:48,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:48,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:00:48,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:48,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:00:48,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:00:49,155 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 179 [2023-11-06 23:00:49,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 113 transitions, 665 flow. Second operand has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:49,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:00:49,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 179 [2023-11-06 23:00:49,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:00:49,439 INFO L124 PetriNetUnfolderBase]: 144/355 cut-off events. [2023-11-06 23:00:49,439 INFO L125 PetriNetUnfolderBase]: For 443/460 co-relation queries the response was YES. [2023-11-06 23:00:49,441 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1463 conditions, 355 events. 144/355 cut-off events. For 443/460 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1409 event pairs, 16 based on Foata normal form. 9/363 useless extension candidates. Maximal degree in co-relation 1442. Up to 191 conditions per place. [2023-11-06 23:00:49,444 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 107 selfloop transitions, 34 changer transitions 20/168 dead transitions. [2023-11-06 23:00:49,445 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 168 transitions, 1358 flow [2023-11-06 23:00:49,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 23:00:49,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-11-06 23:00:49,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 659 transitions. [2023-11-06 23:00:49,449 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46019553072625696 [2023-11-06 23:00:49,449 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 659 transitions. [2023-11-06 23:00:49,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 659 transitions. [2023-11-06 23:00:49,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:00:49,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 659 transitions. [2023-11-06 23:00:49,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 82.375) internal successors, (659), 8 states have internal predecessors, (659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:49,457 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 179.0) internal successors, (1611), 9 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:49,458 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 179.0) internal successors, (1611), 9 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:49,458 INFO L175 Difference]: Start difference. First operand has 74 places, 113 transitions, 665 flow. Second operand 8 states and 659 transitions. [2023-11-06 23:00:49,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 168 transitions, 1358 flow [2023-11-06 23:00:49,468 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 168 transitions, 1265 flow, removed 39 selfloop flow, removed 3 redundant places. [2023-11-06 23:00:49,473 INFO L231 Difference]: Finished difference. Result has 83 places, 122 transitions, 770 flow [2023-11-06 23:00:49,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=598, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=770, PETRI_PLACES=83, PETRI_TRANSITIONS=122} [2023-11-06 23:00:49,474 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 35 predicate places. [2023-11-06 23:00:49,474 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 122 transitions, 770 flow [2023-11-06 23:00:49,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.25) internal successors, (610), 8 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:49,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:49,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:49,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 23:00:49,476 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 23:00:49,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:49,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1912267892, now seen corresponding path program 1 times [2023-11-06 23:00:49,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:49,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040724506] [2023-11-06 23:00:49,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:49,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:49,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:00:49,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:49,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040724506] [2023-11-06 23:00:49,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040724506] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:49,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:49,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:00:49,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355874422] [2023-11-06 23:00:49,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:49,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:00:49,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:49,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:00:49,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:00:50,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 179 [2023-11-06 23:00:50,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 122 transitions, 770 flow. Second operand has 8 states, 8 states have (on average 82.75) internal successors, (662), 8 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:50,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:00:50,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 179 [2023-11-06 23:00:50,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:00:50,647 INFO L124 PetriNetUnfolderBase]: 145/351 cut-off events. [2023-11-06 23:00:50,647 INFO L125 PetriNetUnfolderBase]: For 484/492 co-relation queries the response was YES. [2023-11-06 23:00:50,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1542 conditions, 351 events. 145/351 cut-off events. For 484/492 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1364 event pairs, 5 based on Foata normal form. 12/362 useless extension candidates. Maximal degree in co-relation 1517. Up to 124 conditions per place. [2023-11-06 23:00:50,652 INFO L140 encePairwiseOnDemand]: 168/179 looper letters, 104 selfloop transitions, 56 changer transitions 19/190 dead transitions. [2023-11-06 23:00:50,652 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 190 transitions, 1567 flow [2023-11-06 23:00:50,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:00:50,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-06 23:00:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 666 transitions. [2023-11-06 23:00:50,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5315243415802074 [2023-11-06 23:00:50,660 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 666 transitions. [2023-11-06 23:00:50,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 666 transitions. [2023-11-06 23:00:50,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:00:50,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 666 transitions. [2023-11-06 23:00:50,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:50,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:50,671 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 179.0) internal successors, (1432), 8 states have internal predecessors, (1432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:50,671 INFO L175 Difference]: Start difference. First operand has 83 places, 122 transitions, 770 flow. Second operand 7 states and 666 transitions. [2023-11-06 23:00:50,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 190 transitions, 1567 flow [2023-11-06 23:00:50,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 190 transitions, 1539 flow, removed 2 selfloop flow, removed 3 redundant places. [2023-11-06 23:00:50,686 INFO L231 Difference]: Finished difference. Result has 89 places, 129 transitions, 997 flow [2023-11-06 23:00:50,687 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=997, PETRI_PLACES=89, PETRI_TRANSITIONS=129} [2023-11-06 23:00:50,689 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 41 predicate places. [2023-11-06 23:00:50,689 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 129 transitions, 997 flow [2023-11-06 23:00:50,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 82.75) internal successors, (662), 8 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:50,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:50,690 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:50,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 23:00:50,691 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 23:00:50,691 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:50,692 INFO L85 PathProgramCache]: Analyzing trace with hash 119943585, now seen corresponding path program 1 times [2023-11-06 23:00:50,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:50,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904434714] [2023-11-06 23:00:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:50,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:00:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:00:51,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:00:51,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904434714] [2023-11-06 23:00:51,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904434714] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:00:51,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:00:51,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 23:00:51,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394138387] [2023-11-06 23:00:51,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:00:51,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:00:51,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:00:51,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:00:51,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:00:51,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 179 [2023-11-06 23:00:51,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 129 transitions, 997 flow. Second operand has 8 states, 8 states have (on average 76.75) internal successors, (614), 8 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:51,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:00:51,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 179 [2023-11-06 23:00:51,430 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:00:51,687 INFO L124 PetriNetUnfolderBase]: 133/335 cut-off events. [2023-11-06 23:00:51,688 INFO L125 PetriNetUnfolderBase]: For 991/1003 co-relation queries the response was YES. [2023-11-06 23:00:51,690 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1718 conditions, 335 events. 133/335 cut-off events. For 991/1003 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1315 event pairs, 16 based on Foata normal form. 1/335 useless extension candidates. Maximal degree in co-relation 1691. Up to 191 conditions per place. [2023-11-06 23:00:51,694 INFO L140 encePairwiseOnDemand]: 171/179 looper letters, 110 selfloop transitions, 28 changer transitions 18/163 dead transitions. [2023-11-06 23:00:51,694 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 163 transitions, 1638 flow [2023-11-06 23:00:51,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:00:51,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2023-11-06 23:00:51,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 874 transitions. [2023-11-06 23:00:51,699 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.44388014220416455 [2023-11-06 23:00:51,700 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 874 transitions. [2023-11-06 23:00:51,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 874 transitions. [2023-11-06 23:00:51,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:00:51,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 874 transitions. [2023-11-06 23:00:51,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 79.45454545454545) internal successors, (874), 11 states have internal predecessors, (874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:51,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 179.0) internal successors, (2148), 12 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:51,711 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 179.0) internal successors, (2148), 12 states have internal predecessors, (2148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:51,711 INFO L175 Difference]: Start difference. First operand has 89 places, 129 transitions, 997 flow. Second operand 11 states and 874 transitions. [2023-11-06 23:00:51,712 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 163 transitions, 1638 flow [2023-11-06 23:00:51,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 163 transitions, 1578 flow, removed 17 selfloop flow, removed 3 redundant places. [2023-11-06 23:00:51,732 INFO L231 Difference]: Finished difference. Result has 95 places, 119 transitions, 937 flow [2023-11-06 23:00:51,732 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=955, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=937, PETRI_PLACES=95, PETRI_TRANSITIONS=119} [2023-11-06 23:00:51,756 INFO L281 CegarLoopForPetriNet]: 48 programPoint places, 47 predicate places. [2023-11-06 23:00:51,757 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 119 transitions, 937 flow [2023-11-06 23:00:51,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 76.75) internal successors, (614), 8 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:00:51,758 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:00:51,758 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:51,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 23:00:51,759 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2023-11-06 23:00:51,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:00:51,760 INFO L85 PathProgramCache]: Analyzing trace with hash -633946933, now seen corresponding path program 1 times [2023-11-06 23:00:51,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:00:51,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318681769] [2023-11-06 23:00:51,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:00:51,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:00:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:51,806 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:00:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:00:51,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:00:51,877 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:00:51,879 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-11-06 23:00:51,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-06 23:00:51,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-06 23:00:51,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-06 23:00:51,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-06 23:00:51,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-06 23:00:51,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-06 23:00:51,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-06 23:00:51,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-06 23:00:51,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-06 23:00:51,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2023-11-06 23:00:51,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2023-11-06 23:00:51,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-06 23:00:51,886 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-06 23:00:51,889 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-06 23:00:51,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 23:00:51,890 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:00:51,899 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 23:00:51,899 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:00:52,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:00:52 BasicIcfg [2023-11-06 23:00:52,007 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:00:52,008 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:00:52,008 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:00:52,008 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:00:52,009 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:00:39" (3/4) ... [2023-11-06 23:00:52,011 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 23:00:52,013 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:00:52,014 INFO L158 Benchmark]: Toolchain (without parser) took 14504.79ms. Allocated memory was 146.8MB in the beginning and 293.6MB in the end (delta: 146.8MB). Free memory was 114.6MB in the beginning and 241.5MB in the end (delta: -126.8MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2023-11-06 23:00:52,014 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:00:52,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1036.72ms. Allocated memory is still 146.8MB. Free memory was 114.3MB in the beginning and 76.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-06 23:00:52,015 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.64ms. Allocated memory is still 146.8MB. Free memory was 76.6MB in the beginning and 74.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 23:00:52,016 INFO L158 Benchmark]: Boogie Preprocessor took 46.69ms. Allocated memory is still 146.8MB. Free memory was 74.0MB in the beginning and 71.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:00:52,016 INFO L158 Benchmark]: RCFGBuilder took 624.19ms. Allocated memory was 146.8MB in the beginning and 201.3MB in the end (delta: 54.5MB). Free memory was 71.9MB in the beginning and 162.7MB in the end (delta: -90.9MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2023-11-06 23:00:52,017 INFO L158 Benchmark]: TraceAbstraction took 12656.97ms. Allocated memory was 201.3MB in the beginning and 293.6MB in the end (delta: 92.3MB). Free memory was 162.7MB in the beginning and 241.5MB in the end (delta: -78.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-11-06 23:00:52,017 INFO L158 Benchmark]: Witness Printer took 5.27ms. Allocated memory is still 293.6MB. Free memory is still 241.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:00:52,020 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 119.5MB. Free memory is still 78.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1036.72ms. Allocated memory is still 146.8MB. Free memory was 114.3MB in the beginning and 76.6MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.64ms. Allocated memory is still 146.8MB. Free memory was 76.6MB in the beginning and 74.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.69ms. Allocated memory is still 146.8MB. Free memory was 74.0MB in the beginning and 71.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.19ms. Allocated memory was 146.8MB in the beginning and 201.3MB in the end (delta: 54.5MB). Free memory was 71.9MB in the beginning and 162.7MB in the end (delta: -90.9MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 12656.97ms. Allocated memory was 201.3MB in the beginning and 293.6MB in the end (delta: 92.3MB). Free memory was 162.7MB in the beginning and 241.5MB in the end (delta: -78.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Witness Printer took 5.27ms. Allocated memory is still 293.6MB. Free memory is still 241.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.2s, 105 PlacesBefore, 48 PlacesAfterwards, 101 TransitionsBefore, 44 TransitionsAfterwards, 1920 CoEnabledTransitionPairs, 8 FixpointIterations, 51 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 77 TotalNumberOfCompositions, 14093 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3193, independent: 2557, independent conditional: 0, independent unconditional: 2557, dependent: 636, dependent conditional: 0, dependent unconditional: 636, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 851, independent: 788, independent conditional: 0, independent unconditional: 788, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3193, independent: 1769, independent conditional: 0, independent unconditional: 1769, dependent: 573, dependent conditional: 0, dependent unconditional: 573, unknown: 851, unknown conditional: 0, unknown unconditional: 851] , Statistics on independence cache: Total cache size (in pairs): 139, Positive cache size: 104, Positive conditional cache size: 0, Positive unconditional cache size: 104, Negative cache size: 35, Negative conditional cache size: 0, Negative unconditional cache size: 35, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1243]: Data race detected Data race detected The following path leads to a data race: [L1223] 0 int *x; [L1224] 0 int *y; [L1225] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_t id; [L1235] 0 int *z; [L1236] 0 x = malloc(sizeof(int)) [L1237] 0 y = malloc(sizeof(int)) [L1238] 0 z = y [L1239] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, m={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, x={-3:0}, y={-2:0}, z={-2:0}] [L1241] EXPR 0 *x VAL [arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}, z={-2:0}] [L1241] EXPR 0 \read(*x) VAL [\read(*x)=27, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}, z={-2:0}] [L1241] 0 printf("%d\n",*x) [L1228] EXPR 1 *x VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1228] 1 *x = 3 VAL [*x = 3=25, arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1243] EXPR 0 \read(*z) VAL [*x = 3=25, \read(*z)=28, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}, z={-2:0}] [L1228] 1 *x = 3 VAL [arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1229] EXPR 1 *y [L1229] 1 *y = 8 VAL [*y = 8=26, arg={0:0}, arg={0:0}, m={1:0}, x={-3:0}, y={-2:0}] [L1243] 0 printf("%d\n",*z) VAL [*y = 8=26, \read(*z)=28, arg={0:0}, arg={0:0}, id={5:0}, m={1:0}, x={-3:0}, y={-2:0}, z={-2:0}] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. There could be a race between one of the statements * C: x = malloc(sizeof(int)) [1236] * C: *x = 3 [1228] * C: y = malloc(sizeof(int)) [1237] * C: *x = 3 [1228] * C: *x = 3 [1228] * C: *y = 8 [1229] * C: *x = 3 [1228] and C: printf("%d\n",*z) [1243] - UnprovableResult [Line: 1236]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1237]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1238]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1241]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1239]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1228]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1229]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 135 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 12.4s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 680 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 465 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 192 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2050 IncrementalHoareTripleChecker+Invalid, 2242 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 192 mSolverCounterUnsat, 21 mSDtfsCounter, 2050 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=997occurred in iteration=9, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 181 NumberOfCodeBlocks, 181 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 1119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-06 23:00:52,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_759d0d2d-0fbe-4557-ba35-503fb70db440/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE