./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.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_273cab3a-2944-480f-9b7e-399cceed03f9/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/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_273cab3a-2944-480f-9b7e-399cceed03f9/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/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_273cab3a-2944-480f-9b7e-399cceed03f9/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 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:32:14,446 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:32:14,583 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:32:14,591 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:32:14,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:32:14,627 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:32:14,627 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:32:14,628 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:32:14,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:32:14,629 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:32:14,630 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:32:14,631 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:32:14,631 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:32:14,632 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:32:14,633 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:32:14,638 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:32:14,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:32:14,640 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:32:14,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:32:14,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:32:14,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:32:14,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:32:14,643 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:32:14,644 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:32:14,644 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:32:14,645 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:32:14,645 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:32:14,646 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:32:14,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:32:14,647 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:32:14,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:14,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:32:14,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:32:14,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:32:14,650 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:32:14,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:32:14,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:32:14,651 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:32:14,651 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:32:14,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:32:14,652 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:32:14,652 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_273cab3a-2944-480f-9b7e-399cceed03f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 318281cc312c05fd633ca0d066d65c4887939b5717e7fb2aba02dbd1a639e1ad [2023-11-06 22:32:15,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:32:15,054 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:32:15,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:32:15,059 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:32:15,060 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:32:15,061 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2023-11-06 22:32:18,204 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:32:18,649 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:32:18,650 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/sv-benchmarks/c/goblint-regression/09-regions_28-list2alloc.i [2023-11-06 22:32:18,669 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/bin/uautomizer-verify-WvqO1wxjHP/data/645238f9d/a72d19396d9d479e8e4b4920e4589c0a/FLAG83978f000 [2023-11-06 22:32:18,684 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/bin/uautomizer-verify-WvqO1wxjHP/data/645238f9d/a72d19396d9d479e8e4b4920e4589c0a [2023-11-06 22:32:18,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:32:18,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:32:18,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:18,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:32:18,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:32:18,697 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:18" (1/1) ... [2023-11-06 22:32:18,698 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a99aa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:18, skipping insertion in model container [2023-11-06 22:32:18,698 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:32:18" (1/1) ... [2023-11-06 22:32:18,753 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:32:19,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:19,435 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:32:19,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:32:19,620 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:32:19,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19 WrapperNode [2023-11-06 22:32:19,621 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:32:19,622 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:19,623 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:32:19,623 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:32:19,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2023-11-06 22:32:19,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2023-11-06 22:32:19,755 INFO L138 Inliner]: procedures = 368, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 106 [2023-11-06 22:32:19,756 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:32:19,756 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:32:19,757 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:32:19,757 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:32:19,794 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2023-11-06 22:32:19,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2023-11-06 22:32:19,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2023-11-06 22:32:19,800 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2023-11-06 22:32:19,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2023-11-06 22:32:19,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2023-11-06 22:32:19,841 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2023-11-06 22:32:19,843 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2023-11-06 22:32:19,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:32:19,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:32:19,862 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:32:19,862 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:32:19,863 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (1/1) ... [2023-11-06 22:32:19,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:32:19,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:32:19,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:32:19,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:32:19,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:32:19,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:32:19,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:32:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:32:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:32:19,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:32:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:32:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:32:19,971 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:32:19,972 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:32:19,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:32:19,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:32:19,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:32:19,974 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 22:32:20,144 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:32:20,146 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:32:20,535 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:32:20,551 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:32:20,552 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:32:20,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:20 BoogieIcfgContainer [2023-11-06 22:32:20,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:32:20,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:32:20,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:32:20,566 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:32:20,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:32:18" (1/3) ... [2023-11-06 22:32:20,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317e771c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:20, skipping insertion in model container [2023-11-06 22:32:20,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:32:19" (2/3) ... [2023-11-06 22:32:20,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@317e771c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:32:20, skipping insertion in model container [2023-11-06 22:32:20,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:20" (3/3) ... [2023-11-06 22:32:20,572 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_28-list2alloc.i [2023-11-06 22:32:20,583 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:32:20,596 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:32:20,596 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-06 22:32:20,596 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:32:20,754 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:32:20,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 176 transitions, 356 flow [2023-11-06 22:32:20,954 INFO L124 PetriNetUnfolderBase]: 0/175 cut-off events. [2023-11-06 22:32:20,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:32:20,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 175 events. 0/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 22:32:20,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 176 transitions, 356 flow [2023-11-06 22:32:20,974 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 179 places, 175 transitions, 353 flow [2023-11-06 22:32:20,979 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:32:21,007 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 179 places, 175 transitions, 353 flow [2023-11-06 22:32:21,014 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 179 places, 175 transitions, 353 flow [2023-11-06 22:32:21,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 179 places, 175 transitions, 353 flow [2023-11-06 22:32:21,088 INFO L124 PetriNetUnfolderBase]: 0/175 cut-off events. [2023-11-06 22:32:21,088 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:32:21,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 175 events. 0/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2023-11-06 22:32:21,092 INFO L119 LiptonReduction]: Number of co-enabled transitions 2650 [2023-11-06 22:33:11,217 WARN L293 SmtUtils]: Spent 14.88s on a formula simplification that was a NOOP. DAG size: 227 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:33:17,378 WARN L293 SmtUtils]: Spent 6.15s on a formula simplification that was a NOOP. DAG size: 198 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:33:44,197 WARN L293 SmtUtils]: Spent 8.43s on a formula simplification that was a NOOP. DAG size: 215 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:33:44,205 INFO L134 LiptonReduction]: Checked pairs total: 18102 [2023-11-06 22:33:44,205 INFO L136 LiptonReduction]: Total number of compositions: 150 [2023-11-06 22:33:44,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:33:44,229 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;@45a44fe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:33:44,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2023-11-06 22:33:44,231 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:33:44,231 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:33:44,232 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:33:44,232 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:33:44,233 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:33:44,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:33:44,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:44,240 INFO L85 PathProgramCache]: Analyzing trace with hash 578, now seen corresponding path program 1 times [2023-11-06 22:33:44,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:44,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176724585] [2023-11-06 22:33:44,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:44,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:44,399 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 22:33:44,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:44,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176724585] [2023-11-06 22:33:44,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176724585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:44,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:44,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:33:44,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885989642] [2023-11-06 22:33:44,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:44,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:33:44,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:44,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:33:44,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:33:44,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 175 out of 326 [2023-11-06 22:33:44,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 56 transitions, 115 flow. Second operand has 2 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 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 22:33:44,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:33:44,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 175 of 326 [2023-11-06 22:33:44,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:33:44,661 INFO L124 PetriNetUnfolderBase]: 60/273 cut-off events. [2023-11-06 22:33:44,661 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:33:44,667 INFO L83 FinitePrefix]: Finished finitePrefix Result has 417 conditions, 273 events. 60/273 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1122 event pairs, 60 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 408. Up to 140 conditions per place. [2023-11-06 22:33:44,671 INFO L140 encePairwiseOnDemand]: 319/326 looper letters, 19 selfloop transitions, 0 changer transitions 0/49 dead transitions. [2023-11-06 22:33:44,672 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 49 transitions, 139 flow [2023-11-06 22:33:44,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:33:44,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:33:44,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 376 transitions. [2023-11-06 22:33:44,703 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5766871165644172 [2023-11-06 22:33:44,704 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 376 transitions. [2023-11-06 22:33:44,705 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 376 transitions. [2023-11-06 22:33:44,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:33:44,713 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 376 transitions. [2023-11-06 22:33:44,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 188.0) internal successors, (376), 2 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:33:44,728 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 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 22:33:44,730 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 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 22:33:44,733 INFO L175 Difference]: Start difference. First operand has 60 places, 56 transitions, 115 flow. Second operand 2 states and 376 transitions. [2023-11-06 22:33:44,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 49 transitions, 139 flow [2023-11-06 22:33:44,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 49 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:33:44,740 INFO L231 Difference]: Finished difference. Result has 53 places, 49 transitions, 100 flow [2023-11-06 22:33:44,742 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=100, PETRI_PLACES=53, PETRI_TRANSITIONS=49} [2023-11-06 22:33:44,751 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -7 predicate places. [2023-11-06 22:33:44,751 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 100 flow [2023-11-06 22:33:44,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 175.5) internal successors, (351), 2 states have internal predecessors, (351), 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 22:33:44,752 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:33:44,753 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:33:44,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:33:44,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:33:44,766 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:44,767 INFO L85 PathProgramCache]: Analyzing trace with hash 556531733, now seen corresponding path program 1 times [2023-11-06 22:33:44,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:44,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676878049] [2023-11-06 22:33:44,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:44,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:45,119 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 22:33:45,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:45,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676878049] [2023-11-06 22:33:45,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676878049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:45,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:45,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:33:45,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456297520] [2023-11-06 22:33:45,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:45,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:33:45,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:45,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:33:45,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:33:45,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 326 [2023-11-06 22:33:45,144 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 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 22:33:45,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:33:45,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 326 [2023-11-06 22:33:45,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:33:45,309 INFO L124 PetriNetUnfolderBase]: 78/319 cut-off events. [2023-11-06 22:33:45,310 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:33:45,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 319 events. 78/319 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1329 event pairs, 56 based on Foata normal form. 0/314 useless extension candidates. Maximal degree in co-relation 498. Up to 171 conditions per place. [2023-11-06 22:33:45,314 INFO L140 encePairwiseOnDemand]: 322/326 looper letters, 23 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2023-11-06 22:33:45,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 51 transitions, 154 flow [2023-11-06 22:33:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:33:45,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:33:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 531 transitions. [2023-11-06 22:33:45,319 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5429447852760736 [2023-11-06 22:33:45,319 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 531 transitions. [2023-11-06 22:33:45,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 531 transitions. [2023-11-06 22:33:45,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:33:45,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 531 transitions. [2023-11-06 22:33:45,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 177.0) internal successors, (531), 3 states have internal predecessors, (531), 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 22:33:45,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:33:45,329 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:33:45,329 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 100 flow. Second operand 3 states and 531 transitions. [2023-11-06 22:33:45,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 51 transitions, 154 flow [2023-11-06 22:33:45,330 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 51 transitions, 154 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:33:45,332 INFO L231 Difference]: Finished difference. Result has 54 places, 49 transitions, 110 flow [2023-11-06 22:33:45,333 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=54, PETRI_TRANSITIONS=49} [2023-11-06 22:33:45,334 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -6 predicate places. [2023-11-06 22:33:45,334 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 49 transitions, 110 flow [2023-11-06 22:33:45,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 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 22:33:45,335 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:33:45,335 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:33:45,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:33:45,336 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:33:45,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:45,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1764824423, now seen corresponding path program 1 times [2023-11-06 22:33:45,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:45,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070713773] [2023-11-06 22:33:45,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:45,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:46,158 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 22:33:46,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:46,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070713773] [2023-11-06 22:33:46,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070713773] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:46,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:46,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:33:46,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663801378] [2023-11-06 22:33:46,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:46,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:33:46,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:46,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:33:46,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:33:46,474 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 138 out of 326 [2023-11-06 22:33:46,476 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 49 transitions, 110 flow. Second operand has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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 22:33:46,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:33:46,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 138 of 326 [2023-11-06 22:33:46,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:33:46,841 INFO L124 PetriNetUnfolderBase]: 212/558 cut-off events. [2023-11-06 22:33:46,842 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-11-06 22:33:46,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1065 conditions, 558 events. 212/558 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2390 event pairs, 130 based on Foata normal form. 0/552 useless extension candidates. Maximal degree in co-relation 1061. Up to 382 conditions per place. [2023-11-06 22:33:46,847 INFO L140 encePairwiseOnDemand]: 315/326 looper letters, 52 selfloop transitions, 22 changer transitions 0/87 dead transitions. [2023-11-06 22:33:46,847 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 87 transitions, 342 flow [2023-11-06 22:33:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:33:46,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:33:46,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 901 transitions. [2023-11-06 22:33:46,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4606339468302659 [2023-11-06 22:33:46,852 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 901 transitions. [2023-11-06 22:33:46,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 901 transitions. [2023-11-06 22:33:46,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:33:46,853 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 901 transitions. [2023-11-06 22:33:46,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 150.16666666666666) internal successors, (901), 6 states have internal predecessors, (901), 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 22:33:46,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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 22:33:46,863 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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 22:33:46,864 INFO L175 Difference]: Start difference. First operand has 54 places, 49 transitions, 110 flow. Second operand 6 states and 901 transitions. [2023-11-06 22:33:46,864 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 87 transitions, 342 flow [2023-11-06 22:33:46,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 87 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:33:46,867 INFO L231 Difference]: Finished difference. Result has 64 places, 70 transitions, 260 flow [2023-11-06 22:33:46,868 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=260, PETRI_PLACES=64, PETRI_TRANSITIONS=70} [2023-11-06 22:33:46,869 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 4 predicate places. [2023-11-06 22:33:46,869 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 70 transitions, 260 flow [2023-11-06 22:33:46,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 139.5) internal successors, (837), 6 states have internal predecessors, (837), 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 22:33:46,870 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:33:46,870 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:33:46,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:33:46,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:33:46,871 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:46,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1786776726, now seen corresponding path program 1 times [2023-11-06 22:33:46,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:46,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117077159] [2023-11-06 22:33:46,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:46,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:47,279 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 22:33:47,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:47,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117077159] [2023-11-06 22:33:47,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117077159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:47,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:47,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:33:47,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144143765] [2023-11-06 22:33:47,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:47,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:33:47,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:47,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:33:47,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:33:47,531 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 326 [2023-11-06 22:33:47,533 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 70 transitions, 260 flow. Second operand has 6 states, 6 states have (on average 132.66666666666666) internal successors, (796), 6 states have internal predecessors, (796), 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 22:33:47,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:33:47,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 326 [2023-11-06 22:33:47,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:33:48,120 INFO L124 PetriNetUnfolderBase]: 371/844 cut-off events. [2023-11-06 22:33:48,121 INFO L125 PetriNetUnfolderBase]: For 242/246 co-relation queries the response was YES. [2023-11-06 22:33:48,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2103 conditions, 844 events. 371/844 cut-off events. For 242/246 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 3784 event pairs, 116 based on Foata normal form. 0/812 useless extension candidates. Maximal degree in co-relation 2094. Up to 625 conditions per place. [2023-11-06 22:33:48,130 INFO L140 encePairwiseOnDemand]: 304/326 looper letters, 92 selfloop transitions, 80 changer transitions 8/189 dead transitions. [2023-11-06 22:33:48,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 189 transitions, 964 flow [2023-11-06 22:33:48,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:33:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:33:48,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 937 transitions. [2023-11-06 22:33:48,135 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47903885480572594 [2023-11-06 22:33:48,136 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 937 transitions. [2023-11-06 22:33:48,136 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 937 transitions. [2023-11-06 22:33:48,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:33:48,137 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 937 transitions. [2023-11-06 22:33:48,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 156.16666666666666) internal successors, (937), 6 states have internal predecessors, (937), 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 22:33:48,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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 22:33:48,149 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 326.0) internal successors, (2282), 7 states have internal predecessors, (2282), 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 22:33:48,150 INFO L175 Difference]: Start difference. First operand has 64 places, 70 transitions, 260 flow. Second operand 6 states and 937 transitions. [2023-11-06 22:33:48,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 189 transitions, 964 flow [2023-11-06 22:33:48,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 189 transitions, 964 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:33:48,160 INFO L231 Difference]: Finished difference. Result has 73 places, 145 transitions, 788 flow [2023-11-06 22:33:48,161 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=788, PETRI_PLACES=73, PETRI_TRANSITIONS=145} [2023-11-06 22:33:48,162 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 13 predicate places. [2023-11-06 22:33:48,162 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 145 transitions, 788 flow [2023-11-06 22:33:48,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 132.66666666666666) internal successors, (796), 6 states have internal predecessors, (796), 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 22:33:48,163 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:33:48,164 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 22:33:48,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:33:48,164 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:33:48,165 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:48,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1946725702, now seen corresponding path program 1 times [2023-11-06 22:33:48,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:48,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074820095] [2023-11-06 22:33:48,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:48,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:33:48,307 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 22:33:48,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:33:48,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074820095] [2023-11-06 22:33:48,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074820095] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:33:48,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:33:48,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:33:48,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339280009] [2023-11-06 22:33:48,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:33:48,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:33:48,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:33:48,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:33:48,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:33:48,334 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 326 [2023-11-06 22:33:48,335 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 145 transitions, 788 flow. Second operand has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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 22:33:48,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:33:48,336 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 326 [2023-11-06 22:33:48,336 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:33:48,598 INFO L124 PetriNetUnfolderBase]: 217/610 cut-off events. [2023-11-06 22:33:48,599 INFO L125 PetriNetUnfolderBase]: For 408/432 co-relation queries the response was YES. [2023-11-06 22:33:48,602 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 610 events. 217/610 cut-off events. For 408/432 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2919 event pairs, 27 based on Foata normal form. 7/607 useless extension candidates. Maximal degree in co-relation 1736. Up to 206 conditions per place. [2023-11-06 22:33:48,607 INFO L140 encePairwiseOnDemand]: 321/326 looper letters, 34 selfloop transitions, 4 changer transitions 4/156 dead transitions. [2023-11-06 22:33:48,607 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 156 transitions, 908 flow [2023-11-06 22:33:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:33:48,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:33:48,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 538 transitions. [2023-11-06 22:33:48,611 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5501022494887525 [2023-11-06 22:33:48,611 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 538 transitions. [2023-11-06 22:33:48,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 538 transitions. [2023-11-06 22:33:48,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:33:48,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 538 transitions. [2023-11-06 22:33:48,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 179.33333333333334) internal successors, (538), 3 states have internal predecessors, (538), 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 22:33:48,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:33:48,619 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 326.0) internal successors, (1304), 4 states have internal predecessors, (1304), 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 22:33:48,620 INFO L175 Difference]: Start difference. First operand has 73 places, 145 transitions, 788 flow. Second operand 3 states and 538 transitions. [2023-11-06 22:33:48,620 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 156 transitions, 908 flow [2023-11-06 22:33:48,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 156 transitions, 884 flow, removed 12 selfloop flow, removed 0 redundant places. [2023-11-06 22:33:48,650 INFO L231 Difference]: Finished difference. Result has 76 places, 145 transitions, 778 flow [2023-11-06 22:33:48,651 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=326, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=778, PETRI_PLACES=76, PETRI_TRANSITIONS=145} [2023-11-06 22:33:48,654 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, 16 predicate places. [2023-11-06 22:33:48,654 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 145 transitions, 778 flow [2023-11-06 22:33:48,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.66666666666666) internal successors, (515), 3 states have internal predecessors, (515), 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 22:33:48,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:33:48,655 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 22:33:48,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:33:48,655 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2023-11-06 22:33:48,656 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:33:48,656 INFO L85 PathProgramCache]: Analyzing trace with hash -191830120, now seen corresponding path program 2 times [2023-11-06 22:33:48,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:33:48,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187112221] [2023-11-06 22:33:48,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:33:48,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:33:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:48,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:33:48,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:33:48,822 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:33:48,823 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:33:48,824 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2023-11-06 22:33:48,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2023-11-06 22:33:48,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2023-11-06 22:33:48,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2023-11-06 22:33:48,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2023-11-06 22:33:48,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2023-11-06 22:33:48,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2023-11-06 22:33:48,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2023-11-06 22:33:48,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2023-11-06 22:33:48,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2023-11-06 22:33:48,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2023-11-06 22:33:48,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2023-11-06 22:33:48,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2023-11-06 22:33:48,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (7 of 21 remaining) [2023-11-06 22:33:48,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (6 of 21 remaining) [2023-11-06 22:33:48,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2023-11-06 22:33:48,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2023-11-06 22:33:48,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2023-11-06 22:33:48,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2023-11-06 22:33:48,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2023-11-06 22:33:48,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2023-11-06 22:33:48,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:33:48,839 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2023-11-06 22:33:48,848 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:33:48,848 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:33:48,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:33:48 BasicIcfg [2023-11-06 22:33:48,915 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:33:48,916 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:33:48,916 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:33:48,916 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:33:48,917 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:32:20" (3/4) ... [2023-11-06 22:33:48,919 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:33:48,920 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:33:48,921 INFO L158 Benchmark]: Toolchain (without parser) took 90232.01ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 119.2MB in the beginning and 103.7MB in the end (delta: 15.5MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2023-11-06 22:33:48,921 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:33:48,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 931.48ms. Allocated memory is still 151.0MB. Free memory was 119.2MB in the beginning and 80.7MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-06 22:33:48,922 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.40ms. Allocated memory is still 151.0MB. Free memory was 80.7MB in the beginning and 122.6MB in the end (delta: -41.9MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-11-06 22:33:48,923 INFO L158 Benchmark]: Boogie Preprocessor took 104.87ms. Allocated memory is still 151.0MB. Free memory was 122.6MB in the beginning and 119.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:33:48,924 INFO L158 Benchmark]: RCFGBuilder took 694.62ms. Allocated memory is still 151.0MB. Free memory was 119.7MB in the beginning and 97.5MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 22:33:48,924 INFO L158 Benchmark]: TraceAbstraction took 88353.25ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 96.6MB in the beginning and 103.7MB in the end (delta: -7.2MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2023-11-06 22:33:48,925 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 182.5MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:33:48,928 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 931.48ms. Allocated memory is still 151.0MB. Free memory was 119.2MB in the beginning and 80.7MB in the end (delta: 38.5MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.40ms. Allocated memory is still 151.0MB. Free memory was 80.7MB in the beginning and 122.6MB in the end (delta: -41.9MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.87ms. Allocated memory is still 151.0MB. Free memory was 122.6MB in the beginning and 119.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 694.62ms. Allocated memory is still 151.0MB. Free memory was 119.7MB in the beginning and 97.5MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 88353.25ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 96.6MB in the beginning and 103.7MB in the end (delta: -7.2MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 182.5MB. Free memory is still 103.7MB. 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: 83.2s, 179 PlacesBefore, 60 PlacesAfterwards, 175 TransitionsBefore, 56 TransitionsAfterwards, 2650 CoEnabledTransitionPairs, 9 FixpointIterations, 118 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 150 TotalNumberOfCompositions, 18102 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5042, independent: 4163, independent conditional: 0, independent unconditional: 4163, dependent: 879, dependent conditional: 0, dependent unconditional: 879, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1228, independent: 1163, independent conditional: 0, independent unconditional: 1163, dependent: 65, dependent conditional: 0, dependent unconditional: 65, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5042, independent: 3000, independent conditional: 0, independent unconditional: 3000, dependent: 814, dependent conditional: 0, dependent unconditional: 814, unknown: 1228, unknown conditional: 0, unknown unconditional: 1228] , Statistics on independence cache: Total cache size (in pairs): 215, Positive cache size: 171, Positive conditional cache size: 0, Positive unconditional cache size: 171, Negative cache size: 44, Negative conditional cache size: 0, Negative unconditional cache size: 44, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1237]: Data race detected Data race detected The following path leads to a data race: [L1223-L1226] 0 struct s { int datum; struct s *next; } *A, *B; [L1233] 0 pthread_mutex_t A_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1234] 0 pthread_mutex_t B_mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1245] 0 pthread_t t1; [L1246] CALL, EXPR 0 new(3) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1246] RET, EXPR 0 new(3) [L1246] 0 A = new(3) [L1247] CALL, EXPR 0 new(5) [L1228] 0 struct s *p = malloc(sizeof(struct s)); [L1229] 0 p->datum = x [L1230] 0 p->next = ((void *)0) [L1231] 0 return p; [L1247] RET, EXPR 0 new(5) [L1247] 0 B = new(5) [L1248] FCALL, FORK 0 pthread_create(&t1, ((void *)0), t_fun, ((void *)0)) VAL [A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, pthread_create(&t1, ((void *)0), t_fun, ((void *)0))=-1, t1={9:0}] [L1249] 0 int *data; [L1251] EXPR 0 A->datum VAL [A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, t1={9:0}] [L1251] 0 data = &A->datum [L1237] EXPR 1 A->datum VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1237] 1 A->datum++ VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] [L1253] 0 *data = 42 VAL [*data = 42=55, A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}, data={-3:0}, t1={9:0}] [L1237] 1 A->datum++ VAL [A->datum=3, A={-3:0}, A_mutex={1:0}, B={-2:0}, B_mutex={2:0}, arg={0:0}, arg={0:0}] 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: A = new(3) [1246] * C: B = new(5) [1247] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: p->datum = x [1229] * C: p->next = ((void *)0) [1230] * C: p->next = ((void *)0) [1230] * C: *data = 42 [1253] * C: p->datum = x [1229] * C: p->datum = x [1229] and C: A->datum++ [1237] - 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: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1246]: 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: 1230]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1247]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1251]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1253]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1248]: 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: 1237]: 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: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1240]: 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, 232 locations, 21 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: 88.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 83.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 363 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 247 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 860 IncrementalHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 22 mSDtfsCounter, 860 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=788occurred in iteration=4, InterpolantAutomatonStates: 20, 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, 1.4s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 211 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 22:33:48,989 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_273cab3a-2944-480f-9b7e-399cceed03f9/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