./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:32:11,982 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:32:12,047 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 04:32:12,053 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:32:12,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:32:12,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:32:12,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:32:12,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:32:12,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:32:12,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:32:12,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:32:12,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:32:12,084 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:32:12,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:32:12,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:32:12,085 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:32:12,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:32:12,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:32:12,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:32:12,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:32:12,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:32:12,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:32:12,088 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 04:32:12,089 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 04:32:12,089 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:32:12,089 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:32:12,090 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:32:12,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:32:12,091 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:32:12,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:32:12,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:32:12,092 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:32:12,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:32:12,092 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:32:12,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:32:12,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:32:12,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:32:12,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:32:12,093 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:32:12,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:32:12,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:32:12,094 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_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f [2023-11-29 04:32:12,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:32:12,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:32:12,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:32:12,371 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:32:12,371 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:32:12,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2023-11-29 04:32:15,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:32:15,316 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:32:15,317 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2023-11-29 04:32:15,333 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/data/635abceab/7416f7b84be741b7bcc3081de166a4f9/FLAG3d10f6d34 [2023-11-29 04:32:15,345 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/data/635abceab/7416f7b84be741b7bcc3081de166a4f9 [2023-11-29 04:32:15,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:32:15,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:32:15,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:32:15,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:32:15,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:32:15,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3964b229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15, skipping insertion in model container [2023-11-29 04:32:15,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:32:15,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:32:15,677 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:32:15,718 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:32:15,750 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:32:15,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15 WrapperNode [2023-11-29 04:32:15,751 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:32:15,752 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:32:15,752 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:32:15,752 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:32:15,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,773 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,796 INFO L138 Inliner]: procedures = 162, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-11-29 04:32:15,797 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:32:15,797 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:32:15,798 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:32:15,798 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:32:15,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,820 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:32:15,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:32:15,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:32:15,832 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:32:15,833 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (1/1) ... [2023-11-29 04:32:15,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:32:15,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:15,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:32:15,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:32:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 04:32:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 04:32:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-29 04:32:15,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:32:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 04:32:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-29 04:32:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-29 04:32:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 04:32:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-29 04:32:15,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:32:15,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:32:15,898 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 04:32:16,039 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:32:16,041 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:32:16,208 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:32:16,231 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:32:16,231 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:32:16,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:32:16 BoogieIcfgContainer [2023-11-29 04:32:16,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:32:16,236 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:32:16,236 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:32:16,239 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:32:16,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:32:15" (1/3) ... [2023-11-29 04:32:16,240 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4421f58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:32:16, skipping insertion in model container [2023-11-29 04:32:16,240 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:32:15" (2/3) ... [2023-11-29 04:32:16,241 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4421f58d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:32:16, skipping insertion in model container [2023-11-29 04:32:16,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:32:16" (3/3) ... [2023-11-29 04:32:16,242 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_09-idxsense_rc.i [2023-11-29 04:32:16,251 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 04:32:16,261 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:32:16,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-29 04:32:16,262 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 04:32:16,314 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-29 04:32:16,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 82 transitions, 168 flow [2023-11-29 04:32:16,395 INFO L124 PetriNetUnfolderBase]: 2/81 cut-off events. [2023-11-29 04:32:16,395 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:32:16,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 23. Up to 2 conditions per place. [2023-11-29 04:32:16,399 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 82 transitions, 168 flow [2023-11-29 04:32:16,404 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 81 transitions, 165 flow [2023-11-29 04:32:16,413 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:32:16,419 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8cb77fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:32:16,419 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-29 04:32:16,432 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 04:32:16,432 INFO L124 PetriNetUnfolderBase]: 2/40 cut-off events. [2023-11-29 04:32:16,433 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 04:32:16,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:32:16,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:32:16,434 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 04:32:16,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:16,440 INFO L85 PathProgramCache]: Analyzing trace with hash -258378101, now seen corresponding path program 1 times [2023-11-29 04:32:16,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:16,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281360710] [2023-11-29 04:32:16,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:16,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:16,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:16,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:16,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281360710] [2023-11-29 04:32:16,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281360710] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:32:16,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:32:16,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 04:32:16,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024695607] [2023-11-29 04:32:16,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:32:16,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:32:16,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:16,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:32:16,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 04:32:16,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 82 [2023-11-29 04:32:16,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 81 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:16,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:32:16,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 82 [2023-11-29 04:32:16,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:32:16,822 INFO L124 PetriNetUnfolderBase]: 7/165 cut-off events. [2023-11-29 04:32:16,822 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 04:32:16,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 165 events. 7/165 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 331 event pairs, 6 based on Foata normal form. 1/154 useless extension candidates. Maximal degree in co-relation 155. Up to 24 conditions per place. [2023-11-29 04:32:16,826 INFO L140 encePairwiseOnDemand]: 78/82 looper letters, 10 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2023-11-29 04:32:16,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 81 transitions, 189 flow [2023-11-29 04:32:16,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:32:16,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 04:32:16,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2023-11-29 04:32:16,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9146341463414634 [2023-11-29 04:32:16,841 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 225 transitions. [2023-11-29 04:32:16,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 225 transitions. [2023-11-29 04:32:16,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:32:16,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 225 transitions. [2023-11-29 04:32:16,850 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:16,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:16,856 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:16,857 INFO L175 Difference]: Start difference. First operand has 83 places, 81 transitions, 165 flow. Second operand 3 states and 225 transitions. [2023-11-29 04:32:16,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 81 transitions, 189 flow [2023-11-29 04:32:16,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 81 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 04:32:16,865 INFO L231 Difference]: Finished difference. Result has 85 places, 81 transitions, 174 flow [2023-11-29 04:32:16,867 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=85, PETRI_TRANSITIONS=81} [2023-11-29 04:32:16,872 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, 2 predicate places. [2023-11-29 04:32:16,872 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 81 transitions, 174 flow [2023-11-29 04:32:16,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:16,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:32:16,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:32:16,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 04:32:16,873 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 04:32:16,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:16,874 INFO L85 PathProgramCache]: Analyzing trace with hash 837308742, now seen corresponding path program 1 times [2023-11-29 04:32:16,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:16,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972914113] [2023-11-29 04:32:16,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:16,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:16,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:17,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:17,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:17,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972914113] [2023-11-29 04:32:17,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972914113] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:17,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881711332] [2023-11-29 04:32:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:17,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:17,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:17,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:17,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:32:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:17,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:32:17,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:17,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:17,213 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:17,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:17,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881711332] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:32:17,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:32:17,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-29 04:32:17,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72638096] [2023-11-29 04:32:17,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:17,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 04:32:17,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:17,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 04:32:17,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:32:17,302 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 82 [2023-11-29 04:32:17,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 81 transitions, 174 flow. Second operand has 10 states, 10 states have (on average 69.0) internal successors, (690), 10 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:17,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:32:17,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 82 [2023-11-29 04:32:17,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:32:17,421 INFO L124 PetriNetUnfolderBase]: 7/172 cut-off events. [2023-11-29 04:32:17,422 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-29 04:32:17,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 172 events. 7/172 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 327 event pairs, 6 based on Foata normal form. 2/162 useless extension candidates. Maximal degree in co-relation 192. Up to 24 conditions per place. [2023-11-29 04:32:17,424 INFO L140 encePairwiseOnDemand]: 76/82 looper letters, 14 selfloop transitions, 9 changer transitions 0/89 dead transitions. [2023-11-29 04:32:17,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 89 transitions, 238 flow [2023-11-29 04:32:17,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:32:17,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2023-11-29 04:32:17,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 628 transitions. [2023-11-29 04:32:17,430 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8509485094850948 [2023-11-29 04:32:17,430 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 628 transitions. [2023-11-29 04:32:17,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 628 transitions. [2023-11-29 04:32:17,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:32:17,432 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 628 transitions. [2023-11-29 04:32:17,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 69.77777777777777) internal successors, (628), 9 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:17,440 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:17,441 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 82.0) internal successors, (820), 10 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:17,441 INFO L175 Difference]: Start difference. First operand has 85 places, 81 transitions, 174 flow. Second operand 9 states and 628 transitions. [2023-11-29 04:32:17,441 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 89 transitions, 238 flow [2023-11-29 04:32:17,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 89 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 04:32:17,446 INFO L231 Difference]: Finished difference. Result has 95 places, 87 transitions, 222 flow [2023-11-29 04:32:17,446 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=222, PETRI_PLACES=95, PETRI_TRANSITIONS=87} [2023-11-29 04:32:17,447 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, 12 predicate places. [2023-11-29 04:32:17,447 INFO L495 AbstractCegarLoop]: Abstraction has has 95 places, 87 transitions, 222 flow [2023-11-29 04:32:17,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 69.0) internal successors, (690), 10 states have internal predecessors, (690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:17,448 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:32:17,448 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:32:17,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:32:17,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-29 04:32:17,652 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 04:32:17,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:17,653 INFO L85 PathProgramCache]: Analyzing trace with hash -872357786, now seen corresponding path program 2 times [2023-11-29 04:32:17,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:17,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345003494] [2023-11-29 04:32:17,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:17,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:17,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:17,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:17,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345003494] [2023-11-29 04:32:17,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345003494] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:17,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052630011] [2023-11-29 04:32:17,822 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:32:17,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:17,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:17,825 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:17,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:32:17,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 04:32:17,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:32:17,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-29 04:32:17,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:17,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 04:32:17,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-29 04:32:18,000 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:32:18,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-29 04:32:18,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:32:18,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-29 04:32:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-29 04:32:18,076 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:32:18,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052630011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:32:18,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:32:18,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2023-11-29 04:32:18,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854861687] [2023-11-29 04:32:18,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:32:18,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:32:18,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:18,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:32:18,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:32:18,224 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 82 [2023-11-29 04:32:18,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 87 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 54.333333333333336) internal successors, (326), 6 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:18,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:32:18,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 82 [2023-11-29 04:32:18,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:32:18,553 INFO L124 PetriNetUnfolderBase]: 261/984 cut-off events. [2023-11-29 04:32:18,553 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-29 04:32:18,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1587 conditions, 984 events. 261/984 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 6306 event pairs, 67 based on Foata normal form. 0/949 useless extension candidates. Maximal degree in co-relation 1531. Up to 257 conditions per place. [2023-11-29 04:32:18,563 INFO L140 encePairwiseOnDemand]: 60/82 looper letters, 88 selfloop transitions, 42 changer transitions 0/189 dead transitions. [2023-11-29 04:32:18,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 189 transitions, 686 flow [2023-11-29 04:32:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:32:18,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:32:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 450 transitions. [2023-11-29 04:32:18,565 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9146341463414634 [2023-11-29 04:32:18,566 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 450 transitions. [2023-11-29 04:32:18,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 450 transitions. [2023-11-29 04:32:18,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:32:18,566 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 450 transitions. [2023-11-29 04:32:18,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.0) internal successors, (450), 6 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:18,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:18,569 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:18,569 INFO L175 Difference]: Start difference. First operand has 95 places, 87 transitions, 222 flow. Second operand 6 states and 450 transitions. [2023-11-29 04:32:18,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 189 transitions, 686 flow [2023-11-29 04:32:18,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 189 transitions, 680 flow, removed 2 selfloop flow, removed 1 redundant places. [2023-11-29 04:32:18,575 INFO L231 Difference]: Finished difference. Result has 104 places, 133 transitions, 532 flow [2023-11-29 04:32:18,576 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=532, PETRI_PLACES=104, PETRI_TRANSITIONS=133} [2023-11-29 04:32:18,576 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, 21 predicate places. [2023-11-29 04:32:18,576 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 133 transitions, 532 flow [2023-11-29 04:32:18,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.333333333333336) internal successors, (326), 6 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:18,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:32:18,577 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:32:18,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 04:32:18,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 04:32:18,778 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 04:32:18,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:18,779 INFO L85 PathProgramCache]: Analyzing trace with hash -888294165, now seen corresponding path program 1 times [2023-11-29 04:32:18,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:18,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553985286] [2023-11-29 04:32:18,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:18,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:18,959 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:18,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:18,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553985286] [2023-11-29 04:32:18,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553985286] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:18,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688162810] [2023-11-29 04:32:18,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:18,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:18,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:18,961 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:18,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:32:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:19,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:32:19,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:19,112 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:19,112 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:19,210 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:19,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688162810] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:32:19,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:32:19,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-11-29 04:32:19,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541061492] [2023-11-29 04:32:19,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:19,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-29 04:32:19,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:19,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-29 04:32:19,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:32:19,284 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 82 [2023-11-29 04:32:19,287 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 133 transitions, 532 flow. Second operand has 18 states, 18 states have (on average 69.0) internal successors, (1242), 18 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:19,287 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:32:19,287 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 82 [2023-11-29 04:32:19,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:32:19,607 INFO L124 PetriNetUnfolderBase]: 122/740 cut-off events. [2023-11-29 04:32:19,607 INFO L125 PetriNetUnfolderBase]: For 128/141 co-relation queries the response was YES. [2023-11-29 04:32:19,610 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1410 conditions, 740 events. 122/740 cut-off events. For 128/141 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 4716 event pairs, 40 based on Foata normal form. 4/730 useless extension candidates. Maximal degree in co-relation 1278. Up to 125 conditions per place. [2023-11-29 04:32:19,614 INFO L140 encePairwiseOnDemand]: 76/82 looper letters, 18 selfloop transitions, 21 changer transitions 0/151 dead transitions. [2023-11-29 04:32:19,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 151 transitions, 698 flow [2023-11-29 04:32:19,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 04:32:19,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2023-11-29 04:32:19,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1450 transitions. [2023-11-29 04:32:19,620 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8420441347270615 [2023-11-29 04:32:19,620 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 1450 transitions. [2023-11-29 04:32:19,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 1450 transitions. [2023-11-29 04:32:19,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:32:19,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 1450 transitions. [2023-11-29 04:32:19,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 69.04761904761905) internal successors, (1450), 21 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:19,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 82.0) internal successors, (1804), 22 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:19,632 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 82.0) internal successors, (1804), 22 states have internal predecessors, (1804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:19,632 INFO L175 Difference]: Start difference. First operand has 104 places, 133 transitions, 532 flow. Second operand 21 states and 1450 transitions. [2023-11-29 04:32:19,632 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 151 transitions, 698 flow [2023-11-29 04:32:19,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 151 transitions, 698 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 04:32:19,642 INFO L231 Difference]: Finished difference. Result has 129 places, 146 transitions, 662 flow [2023-11-29 04:32:19,643 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=662, PETRI_PLACES=129, PETRI_TRANSITIONS=146} [2023-11-29 04:32:19,644 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, 46 predicate places. [2023-11-29 04:32:19,644 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 146 transitions, 662 flow [2023-11-29 04:32:19,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 69.0) internal successors, (1242), 18 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:19,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:32:19,645 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:32:19,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:32:19,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:19,848 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 04:32:19,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:19,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1044030677, now seen corresponding path program 2 times [2023-11-29 04:32:19,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:19,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302400121] [2023-11-29 04:32:19,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:19,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:20,217 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:20,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:20,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302400121] [2023-11-29 04:32:20,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302400121] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:20,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22458821] [2023-11-29 04:32:20,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 04:32:20,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:20,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:20,220 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:20,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:32:20,315 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 04:32:20,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 04:32:20,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-29 04:32:20,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:20,327 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-29 04:32:20,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-29 04:32:20,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:32:20,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2023-11-29 04:32:20,423 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 04:32:20,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2023-11-29 04:32:20,458 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-29 04:32:20,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:32:20,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22458821] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:32:20,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:32:20,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 21 [2023-11-29 04:32:20,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521387961] [2023-11-29 04:32:20,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:32:20,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:32:20,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:20,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:32:20,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2023-11-29 04:32:20,574 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 82 [2023-11-29 04:32:20,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 146 transitions, 662 flow. Second operand has 6 states, 6 states have (on average 54.333333333333336) internal successors, (326), 6 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:20,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:32:20,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 82 [2023-11-29 04:32:20,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:32:20,895 INFO L124 PetriNetUnfolderBase]: 417/1408 cut-off events. [2023-11-29 04:32:20,895 INFO L125 PetriNetUnfolderBase]: For 645/680 co-relation queries the response was YES. [2023-11-29 04:32:20,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3412 conditions, 1408 events. 417/1408 cut-off events. For 645/680 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9623 event pairs, 108 based on Foata normal form. 21/1413 useless extension candidates. Maximal degree in co-relation 3272. Up to 602 conditions per place. [2023-11-29 04:32:20,903 INFO L140 encePairwiseOnDemand]: 65/82 looper letters, 99 selfloop transitions, 53 changer transitions 6/229 dead transitions. [2023-11-29 04:32:20,903 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 229 transitions, 1330 flow [2023-11-29 04:32:20,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:32:20,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:32:20,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 410 transitions. [2023-11-29 04:32:20,906 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2023-11-29 04:32:20,906 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 410 transitions. [2023-11-29 04:32:20,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 410 transitions. [2023-11-29 04:32:20,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:32:20,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 410 transitions. [2023-11-29 04:32:20,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.33333333333333) internal successors, (410), 6 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:20,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:20,909 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:20,909 INFO L175 Difference]: Start difference. First operand has 129 places, 146 transitions, 662 flow. Second operand 6 states and 410 transitions. [2023-11-29 04:32:20,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 229 transitions, 1330 flow [2023-11-29 04:32:20,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 229 transitions, 1306 flow, removed 6 selfloop flow, removed 6 redundant places. [2023-11-29 04:32:20,919 INFO L231 Difference]: Finished difference. Result has 133 places, 197 transitions, 1144 flow [2023-11-29 04:32:20,919 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1144, PETRI_PLACES=133, PETRI_TRANSITIONS=197} [2023-11-29 04:32:20,920 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, 50 predicate places. [2023-11-29 04:32:20,920 INFO L495 AbstractCegarLoop]: Abstraction has has 133 places, 197 transitions, 1144 flow [2023-11-29 04:32:20,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.333333333333336) internal successors, (326), 6 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:20,921 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:32:20,921 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:32:20,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:32:21,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:21,123 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 04:32:21,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:21,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2141916555, now seen corresponding path program 1 times [2023-11-29 04:32:21,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:21,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51805975] [2023-11-29 04:32:21,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:21,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:21,459 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:21,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:21,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51805975] [2023-11-29 04:32:21,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51805975] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:32:21,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267915556] [2023-11-29 04:32:21,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:21,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:21,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:32:21,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:32:21,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:32:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:21,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:32:21,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:32:21,657 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:21,657 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:32:21,865 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 04:32:21,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267915556] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:32:21,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:32:21,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2023-11-29 04:32:21,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451943641] [2023-11-29 04:32:21,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:32:21,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 04:32:21,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:21,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 04:32:21,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2023-11-29 04:32:21,894 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 82 [2023-11-29 04:32:21,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 197 transitions, 1144 flow. Second operand has 23 states, 23 states have (on average 69.08695652173913) internal successors, (1589), 23 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:21,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:32:21,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 82 [2023-11-29 04:32:21,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:32:22,400 INFO L124 PetriNetUnfolderBase]: 227/1108 cut-off events. [2023-11-29 04:32:22,400 INFO L125 PetriNetUnfolderBase]: For 982/1011 co-relation queries the response was YES. [2023-11-29 04:32:22,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2829 conditions, 1108 events. 227/1108 cut-off events. For 982/1011 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7668 event pairs, 39 based on Foata normal form. 7/1102 useless extension candidates. Maximal degree in co-relation 2609. Up to 212 conditions per place. [2023-11-29 04:32:22,409 INFO L140 encePairwiseOnDemand]: 76/82 looper letters, 21 selfloop transitions, 30 changer transitions 0/214 dead transitions. [2023-11-29 04:32:22,409 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 214 transitions, 1368 flow [2023-11-29 04:32:22,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-11-29 04:32:22,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2023-11-29 04:32:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 2064 transitions. [2023-11-29 04:32:22,419 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8390243902439024 [2023-11-29 04:32:22,419 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 2064 transitions. [2023-11-29 04:32:22,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 2064 transitions. [2023-11-29 04:32:22,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:32:22,421 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 2064 transitions. [2023-11-29 04:32:22,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 68.8) internal successors, (2064), 30 states have internal predecessors, (2064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:22,434 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 82.0) internal successors, (2542), 31 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:22,435 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 82.0) internal successors, (2542), 31 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:22,436 INFO L175 Difference]: Start difference. First operand has 133 places, 197 transitions, 1144 flow. Second operand 30 states and 2064 transitions. [2023-11-29 04:32:22,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 214 transitions, 1368 flow [2023-11-29 04:32:22,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 214 transitions, 1360 flow, removed 4 selfloop flow, removed 0 redundant places. [2023-11-29 04:32:22,450 INFO L231 Difference]: Finished difference. Result has 166 places, 207 transitions, 1288 flow [2023-11-29 04:32:22,450 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=1136, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1288, PETRI_PLACES=166, PETRI_TRANSITIONS=207} [2023-11-29 04:32:22,451 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, 83 predicate places. [2023-11-29 04:32:22,451 INFO L495 AbstractCegarLoop]: Abstraction has has 166 places, 207 transitions, 1288 flow [2023-11-29 04:32:22,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 69.08695652173913) internal successors, (1589), 23 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:22,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:32:22,452 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:32:22,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 04:32:22,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:32:22,653 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 04:32:22,653 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:22,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1407146726, now seen corresponding path program 2 times [2023-11-29 04:32:22,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:22,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89351780] [2023-11-29 04:32:22,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:22,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:32:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 04:32:23,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:32:23,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89351780] [2023-11-29 04:32:23,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89351780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:32:23,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:32:23,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 04:32:23,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252996768] [2023-11-29 04:32:23,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:32:23,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 04:32:23,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:32:23,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 04:32:23,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 04:32:23,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 82 [2023-11-29 04:32:23,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 207 transitions, 1288 flow. Second operand has 6 states, 6 states have (on average 52.5) internal successors, (315), 6 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:23,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 04:32:23,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 82 [2023-11-29 04:32:23,343 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 04:32:23,791 INFO L124 PetriNetUnfolderBase]: 571/1821 cut-off events. [2023-11-29 04:32:23,791 INFO L125 PetriNetUnfolderBase]: For 2471/2519 co-relation queries the response was YES. [2023-11-29 04:32:23,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5541 conditions, 1821 events. 571/1821 cut-off events. For 2471/2519 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 12890 event pairs, 127 based on Foata normal form. 25/1822 useless extension candidates. Maximal degree in co-relation 5318. Up to 841 conditions per place. [2023-11-29 04:32:23,805 INFO L140 encePairwiseOnDemand]: 65/82 looper letters, 120 selfloop transitions, 58 changer transitions 39/299 dead transitions. [2023-11-29 04:32:23,806 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 299 transitions, 2246 flow [2023-11-29 04:32:23,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 04:32:23,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 04:32:23,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 400 transitions. [2023-11-29 04:32:23,808 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8130081300813008 [2023-11-29 04:32:23,808 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 400 transitions. [2023-11-29 04:32:23,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 400 transitions. [2023-11-29 04:32:23,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 04:32:23,808 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 400 transitions. [2023-11-29 04:32:23,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 66.66666666666667) internal successors, (400), 6 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:23,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:23,811 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 82.0) internal successors, (574), 7 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:23,811 INFO L175 Difference]: Start difference. First operand has 166 places, 207 transitions, 1288 flow. Second operand 6 states and 400 transitions. [2023-11-29 04:32:23,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 299 transitions, 2246 flow [2023-11-29 04:32:23,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 299 transitions, 2200 flow, removed 5 selfloop flow, removed 18 redundant places. [2023-11-29 04:32:23,831 INFO L231 Difference]: Finished difference. Result has 157 places, 234 transitions, 1650 flow [2023-11-29 04:32:23,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=1242, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1650, PETRI_PLACES=157, PETRI_TRANSITIONS=234} [2023-11-29 04:32:23,832 INFO L281 CegarLoopForPetriNet]: 83 programPoint places, 74 predicate places. [2023-11-29 04:32:23,832 INFO L495 AbstractCegarLoop]: Abstraction has has 157 places, 234 transitions, 1650 flow [2023-11-29 04:32:23,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.5) internal successors, (315), 6 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 04:32:23,832 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 04:32:23,832 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 04:32:23,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 04:32:23,833 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-29 04:32:23,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:32:23,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1848508086, now seen corresponding path program 1 times [2023-11-29 04:32:23,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:32:23,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591201374] [2023-11-29 04:32:23,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:32:23,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:32:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:32:23,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 04:32:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 04:32:23,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 04:32:23,920 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 04:32:23,921 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-11-29 04:32:23,922 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-11-29 04:32:23,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-29 04:32:23,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-11-29 04:32:23,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-11-29 04:32:23,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-11-29 04:32:23,923 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-11-29 04:32:23,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 04:32:23,924 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2023-11-29 04:32:23,930 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 04:32:23,930 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 04:32:23,965 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-29 04:32:23,966 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-29 04:32:23,966 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 04:32:23,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:23,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:23,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:23,967 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 04:32:23,968 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:23,968 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:23,968 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 04:32:23,968 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post4 could not be translated [2023-11-29 04:32:23,968 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 04:32:23,968 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:23,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post4 could not be translated [2023-11-29 04:32:23,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 04:32:23,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:23,969 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 04:32:23,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 04:32:23 BasicIcfg [2023-11-29 04:32:23,977 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 04:32:23,978 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 04:32:23,978 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 04:32:23,978 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 04:32:23,979 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:32:16" (3/4) ... [2023-11-29 04:32:23,980 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 04:32:23,981 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 04:32:23,982 INFO L158 Benchmark]: Toolchain (without parser) took 8632.37ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 134.0MB in the beginning and 115.0MB in the end (delta: 19.0MB). Peak memory consumption was 99.3MB. Max. memory is 16.1GB. [2023-11-29 04:32:23,982 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory was 77.7MB in the beginning and 77.6MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:32:23,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.01ms. Allocated memory is still 178.3MB. Free memory was 133.4MB in the beginning and 114.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 04:32:23,983 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.23ms. Allocated memory is still 178.3MB. Free memory was 114.0MB in the beginning and 111.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:32:23,983 INFO L158 Benchmark]: Boogie Preprocessor took 33.16ms. Allocated memory is still 178.3MB. Free memory was 111.9MB in the beginning and 110.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 04:32:23,984 INFO L158 Benchmark]: RCFGBuilder took 401.84ms. Allocated memory is still 178.3MB. Free memory was 110.4MB in the beginning and 140.6MB in the end (delta: -30.2MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2023-11-29 04:32:23,984 INFO L158 Benchmark]: TraceAbstraction took 7741.60ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 139.5MB in the beginning and 116.0MB in the end (delta: 23.5MB). Peak memory consumption was 104.2MB. Max. memory is 16.1GB. [2023-11-29 04:32:23,984 INFO L158 Benchmark]: Witness Printer took 3.34ms. Allocated memory is still 257.9MB. Free memory was 116.0MB in the beginning and 115.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 04:32:23,986 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory was 77.7MB in the beginning and 77.6MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.01ms. Allocated memory is still 178.3MB. Free memory was 133.4MB in the beginning and 114.0MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.23ms. Allocated memory is still 178.3MB. Free memory was 114.0MB in the beginning and 111.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.16ms. Allocated memory is still 178.3MB. Free memory was 111.9MB in the beginning and 110.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 401.84ms. Allocated memory is still 178.3MB. Free memory was 110.4MB in the beginning and 140.6MB in the end (delta: -30.2MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7741.60ms. Allocated memory was 178.3MB in the beginning and 257.9MB in the end (delta: 79.7MB). Free memory was 139.5MB in the beginning and 116.0MB in the end (delta: 23.5MB). Peak memory consumption was 104.2MB. Max. memory is 16.1GB. * Witness Printer took 3.34ms. Allocated memory is still 257.9MB. Free memory was 116.0MB in the beginning and 115.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 693]: Data race detected [2023-11-29 04:32:24,006 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-29 04:32:24,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-29 04:32:24,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 04:32:24,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 04:32:24,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 04:32:24,008 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post4 could not be translated [2023-11-29 04:32:24,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 04:32:24,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 04:32:24,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post4 could not be translated [2023-11-29 04:32:24,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 04:32:24,009 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,023 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-29 04:32:24,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-29 04:32:24,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 04:32:24,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,024 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 04:32:24,025 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,025 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated [2023-11-29 04:32:24,025 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,025 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post4 could not be translated [2023-11-29 04:32:24,025 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 04:32:24,025 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,025 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post4 could not be translated [2023-11-29 04:32:24,025 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 04:32:24,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem3 could not be translated [2023-11-29 04:32:24,026 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem11 could not be translated Data race detected The following path leads to a data race: [L679] 0 int data[10]; VAL [data={1:0}] [L680] 0 pthread_mutex_t m[10]; VAL [data={1:0}, m={2:0}] [L688] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=0, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=1, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=2, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=3, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=4, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=5, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=6, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=7, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=8, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=9, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L688] COND FALSE 0 !(i < 10) VAL [data={1:0}, i=10, m={2:0}] [L690] 0 pthread_t id; VAL [data={1:0}, id={3:0}, m={2:0}] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data={1:0}, id={3:0}, m={2:0}] [L693] EXPR 0 data[4] VAL [arg={0:0}, data={1:0}, id={3:0}, m={2:0}] [L683] EXPR 1 data[4] VAL [arg={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, id={3:0}, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, id={3:0}, m={2:0}] [L683] 1 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] 0 data[4]++ VAL [arg={0:0}, arg={0:0}, data={1:0}, id={3:0}, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [683] and C: data[4]++ [693] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: 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: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: 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, 109 locations, 7 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: 7.6s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 366 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 274 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 87 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1042 IncrementalHoareTripleChecker+Invalid, 1156 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 26 mSDtfsCounter, 1042 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 510 GetRequests, 385 SyntacticMatches, 11 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1650occurred in iteration=7, InterpolantAutomatonStates: 81, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 734 NumberOfCodeBlocks, 684 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 781 ConstructedInterpolants, 0 QuantifiedInterpolants, 1502 SizeOfPredicates, 22 NumberOfNonLiveVariables, 656 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 365/888 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-29 04:32:24,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9a4508bd-0728-46fb-83ec-f147f21dffc2/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE