./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/airline-25.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/airline-25.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0d81069750f24e52e04bdb7efecd6d77b64aec41e058c154f75fbba11e6c11d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:15:18,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:15:18,354 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:15:18,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:15:18,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:15:18,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:15:18,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:15:18,403 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:15:18,404 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:15:18,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:15:18,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:15:18,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:15:18,409 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:15:18,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:15:18,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:15:18,410 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:15:18,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:15:18,415 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:15:18,415 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:15:18,415 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:15:18,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:15:18,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:15:18,416 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:15:18,417 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:15:18,417 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:15:18,417 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:15:18,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:15:18,418 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:15:18,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:15:18,420 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:15:18,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:15:18,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:18,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:15:18,421 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:15:18,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:15:18,422 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:15:18,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:15:18,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:15:18,423 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:15:18,423 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:15:18,426 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:15:18,427 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_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0d81069750f24e52e04bdb7efecd6d77b64aec41e058c154f75fbba11e6c11d [2024-10-31 22:15:18,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:15:18,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:15:18,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:15:18,759 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:15:18,760 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:15:18,761 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-deagle/airline-25.i Unable to find full path for "g++" [2024-10-31 22:15:20,869 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:15:21,233 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:15:21,234 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/sv-benchmarks/c/pthread-deagle/airline-25.i [2024-10-31 22:15:21,253 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/data/53af97978/871e75e309d24c2e93b264f2965ccf8d/FLAGe6cdc3aa1 [2024-10-31 22:15:21,469 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/data/53af97978/871e75e309d24c2e93b264f2965ccf8d [2024-10-31 22:15:21,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:15:21,474 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:15:21,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:21,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:15:21,482 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:15:21,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:21,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59aaee26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:21, skipping insertion in model container [2024-10-31 22:15:21,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:15:21" (1/1) ... [2024-10-31 22:15:21,531 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:15:22,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:22,009 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:15:22,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:15:22,109 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:15:22,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22 WrapperNode [2024-10-31 22:15:22,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:15:22,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:22,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:15:22,111 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:15:22,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,159 INFO L138 Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2024-10-31 22:15:22,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:15:22,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:15:22,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:15:22,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:15:22,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,188 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:15:22,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:15:22,193 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:15:22,193 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:15:22,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (1/1) ... [2024-10-31 22:15:22,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:15:22,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:22,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:15:22,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:15:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:15:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:15:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:15:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:15:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:15:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure salethread [2024-10-31 22:15:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure salethread [2024-10-31 22:15:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:15:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:15:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:15:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:15:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:15:22,257 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:15:22,406 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:15:22,410 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:15:22,644 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:15:22,644 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:15:22,709 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:15:22,709 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:15:22,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:22 BoogieIcfgContainer [2024-10-31 22:15:22,710 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:15:22,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:15:22,714 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:15:22,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:15:22,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:15:21" (1/3) ... [2024-10-31 22:15:22,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634775a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:22, skipping insertion in model container [2024-10-31 22:15:22,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:15:22" (2/3) ... [2024-10-31 22:15:22,720 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@634775a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:15:22, skipping insertion in model container [2024-10-31 22:15:22,720 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:22" (3/3) ... [2024-10-31 22:15:22,721 INFO L112 eAbstractionObserver]: Analyzing ICFG airline-25.i [2024-10-31 22:15:22,739 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:15:22,740 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-31 22:15:22,740 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:15:22,811 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-31 22:15:22,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 99 transitions, 205 flow [2024-10-31 22:15:22,942 INFO L124 PetriNetUnfolderBase]: 11/144 cut-off events. [2024-10-31 22:15:22,942 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:15:22,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 144 events. 11/144 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 307 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 70. Up to 4 conditions per place. [2024-10-31 22:15:22,948 INFO L82 GeneralOperation]: Start removeDead. Operand has 95 places, 99 transitions, 205 flow [2024-10-31 22:15:22,952 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 99 transitions, 205 flow [2024-10-31 22:15:22,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:22,967 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d5b9ec6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:22,968 INFO L334 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2024-10-31 22:15:22,972 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:15:22,973 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-10-31 22:15:22,973 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:22,973 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:22,973 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:22,974 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-31 22:15:22,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:22,979 INFO L85 PathProgramCache]: Analyzing trace with hash -694234630, now seen corresponding path program 1 times [2024-10-31 22:15:22,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:22,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932505733] [2024-10-31 22:15:22,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:22,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:23,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:23,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932505733] [2024-10-31 22:15:23,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932505733] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:23,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:23,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:15:23,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862269268] [2024-10-31 22:15:23,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:23,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:15:23,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:23,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:15:23,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:15:23,209 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 99 [2024-10-31 22:15:23,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 99 transitions, 205 flow. Second operand has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:23,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:23,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 99 [2024-10-31 22:15:23,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:23,267 INFO L124 PetriNetUnfolderBase]: 3/127 cut-off events. [2024-10-31 22:15:23,269 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2024-10-31 22:15:23,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 3/127 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 253 event pairs, 0 based on Foata normal form. 10/121 useless extension candidates. Maximal degree in co-relation 64. Up to 8 conditions per place. [2024-10-31 22:15:23,272 INFO L140 encePairwiseOnDemand]: 90/99 looper letters, 7 selfloop transitions, 0 changer transitions 0/88 dead transitions. [2024-10-31 22:15:23,273 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 88 transitions, 197 flow [2024-10-31 22:15:23,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:15:23,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:15:23,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 180 transitions. [2024-10-31 22:15:23,290 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2024-10-31 22:15:23,292 INFO L175 Difference]: Start difference. First operand has 95 places, 99 transitions, 205 flow. Second operand 2 states and 180 transitions. [2024-10-31 22:15:23,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 88 transitions, 197 flow [2024-10-31 22:15:23,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 88 transitions, 197 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:23,303 INFO L231 Difference]: Finished difference. Result has 89 places, 88 transitions, 183 flow [2024-10-31 22:15:23,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=183, PETRI_PLACES=89, PETRI_TRANSITIONS=88} [2024-10-31 22:15:23,312 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -6 predicate places. [2024-10-31 22:15:23,312 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 88 transitions, 183 flow [2024-10-31 22:15:23,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 82.5) internal successors, (165), 2 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:23,313 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:23,314 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:23,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:15:23,316 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-31 22:15:23,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:23,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1899843324, now seen corresponding path program 1 times [2024-10-31 22:15:23,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:23,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029094835] [2024-10-31 22:15:23,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:23,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:23,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:23,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:23,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029094835] [2024-10-31 22:15:23,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029094835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:23,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:23,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:23,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101229823] [2024-10-31 22:15:23,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:23,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:23,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:23,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:23,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:23,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2024-10-31 22:15:23,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 88 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:23,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:23,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2024-10-31 22:15:23,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:23,582 INFO L124 PetriNetUnfolderBase]: 10/174 cut-off events. [2024-10-31 22:15:23,582 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-10-31 22:15:23,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 174 events. 10/174 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 441 event pairs, 0 based on Foata normal form. 1/154 useless extension candidates. Maximal degree in co-relation 203. Up to 23 conditions per place. [2024-10-31 22:15:23,584 INFO L140 encePairwiseOnDemand]: 96/99 looper letters, 13 selfloop transitions, 2 changer transitions 0/90 dead transitions. [2024-10-31 22:15:23,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 90 transitions, 217 flow [2024-10-31 22:15:23,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:23,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:23,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2024-10-31 22:15:23,588 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8215488215488216 [2024-10-31 22:15:23,588 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 183 flow. Second operand 3 states and 244 transitions. [2024-10-31 22:15:23,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 90 transitions, 217 flow [2024-10-31 22:15:23,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 90 transitions, 217 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:23,592 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 191 flow [2024-10-31 22:15:23,593 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=191, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2024-10-31 22:15:23,593 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -3 predicate places. [2024-10-31 22:15:23,594 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 191 flow [2024-10-31 22:15:23,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:23,594 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:23,595 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:23,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:15:23,595 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-31 22:15:23,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:23,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1901875597, now seen corresponding path program 1 times [2024-10-31 22:15:23,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:23,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606087685] [2024-10-31 22:15:23,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:23,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:24,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:24,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606087685] [2024-10-31 22:15:24,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606087685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:24,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:24,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:24,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697215013] [2024-10-31 22:15:24,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:24,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:24,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:24,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:24,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:24,520 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 99 [2024-10-31 22:15:24,521 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 191 flow. Second operand has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:24,521 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:24,521 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 99 [2024-10-31 22:15:24,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:24,650 INFO L124 PetriNetUnfolderBase]: 33/198 cut-off events. [2024-10-31 22:15:24,650 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2024-10-31 22:15:24,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 198 events. 33/198 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 653 event pairs, 9 based on Foata normal form. 0/180 useless extension candidates. Maximal degree in co-relation 292. Up to 56 conditions per place. [2024-10-31 22:15:24,653 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 28 selfloop transitions, 5 changer transitions 0/95 dead transitions. [2024-10-31 22:15:24,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 95 transitions, 271 flow [2024-10-31 22:15:24,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:24,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:24,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 412 transitions. [2024-10-31 22:15:24,657 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6936026936026936 [2024-10-31 22:15:24,661 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 191 flow. Second operand 6 states and 412 transitions. [2024-10-31 22:15:24,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 95 transitions, 271 flow [2024-10-31 22:15:24,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 95 transitions, 267 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:24,664 INFO L231 Difference]: Finished difference. Result has 94 places, 87 transitions, 195 flow [2024-10-31 22:15:24,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=185, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=195, PETRI_PLACES=94, PETRI_TRANSITIONS=87} [2024-10-31 22:15:24,666 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -1 predicate places. [2024-10-31 22:15:24,667 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 87 transitions, 195 flow [2024-10-31 22:15:24,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 65.0) internal successors, (390), 6 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:24,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:24,667 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:24,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:15:24,668 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-31 22:15:24,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:24,668 INFO L85 PathProgramCache]: Analyzing trace with hash -517437541, now seen corresponding path program 1 times [2024-10-31 22:15:24,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:24,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721070814] [2024-10-31 22:15:24,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:24,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:24,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:24,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721070814] [2024-10-31 22:15:24,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721070814] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:24,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:24,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:24,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192959787] [2024-10-31 22:15:24,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:24,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:24,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:24,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:24,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:24,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 99 [2024-10-31 22:15:24,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 87 transitions, 195 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:24,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:24,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 99 [2024-10-31 22:15:24,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:24,794 INFO L124 PetriNetUnfolderBase]: 1/154 cut-off events. [2024-10-31 22:15:24,794 INFO L125 PetriNetUnfolderBase]: For 7/15 co-relation queries the response was YES. [2024-10-31 22:15:24,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 185 conditions, 154 events. 1/154 cut-off events. For 7/15 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 309 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 179. Up to 7 conditions per place. [2024-10-31 22:15:24,797 INFO L140 encePairwiseOnDemand]: 96/99 looper letters, 8 selfloop transitions, 2 changer transitions 0/87 dead transitions. [2024-10-31 22:15:24,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 87 transitions, 218 flow [2024-10-31 22:15:24,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:24,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:24,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 248 transitions. [2024-10-31 22:15:24,802 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.835016835016835 [2024-10-31 22:15:24,802 INFO L175 Difference]: Start difference. First operand has 94 places, 87 transitions, 195 flow. Second operand 3 states and 248 transitions. [2024-10-31 22:15:24,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 87 transitions, 218 flow [2024-10-31 22:15:24,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 87 transitions, 208 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:15:24,806 INFO L231 Difference]: Finished difference. Result has 90 places, 86 transitions, 187 flow [2024-10-31 22:15:24,806 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=187, PETRI_PLACES=90, PETRI_TRANSITIONS=86} [2024-10-31 22:15:24,807 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -5 predicate places. [2024-10-31 22:15:24,807 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 86 transitions, 187 flow [2024-10-31 22:15:24,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:24,809 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:24,809 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:24,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:15:24,810 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-31 22:15:24,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:24,812 INFO L85 PathProgramCache]: Analyzing trace with hash -343848704, now seen corresponding path program 1 times [2024-10-31 22:15:24,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:24,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414814340] [2024-10-31 22:15:24,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:24,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:24,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:24,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:24,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414814340] [2024-10-31 22:15:24,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414814340] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:24,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:24,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:24,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959750246] [2024-10-31 22:15:24,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:24,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:24,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:24,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:24,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:24,891 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 99 [2024-10-31 22:15:24,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 86 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:24,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:24,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 99 [2024-10-31 22:15:24,892 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:24,945 INFO L124 PetriNetUnfolderBase]: 8/228 cut-off events. [2024-10-31 22:15:24,945 INFO L125 PetriNetUnfolderBase]: For 10/18 co-relation queries the response was YES. [2024-10-31 22:15:24,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 228 events. 8/228 cut-off events. For 10/18 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 817 event pairs, 4 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 272. Up to 25 conditions per place. [2024-10-31 22:15:24,948 INFO L140 encePairwiseOnDemand]: 93/99 looper letters, 12 selfloop transitions, 4 changer transitions 0/89 dead transitions. [2024-10-31 22:15:24,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 89 transitions, 228 flow [2024-10-31 22:15:24,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:24,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 246 transitions. [2024-10-31 22:15:24,952 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2024-10-31 22:15:24,952 INFO L175 Difference]: Start difference. First operand has 90 places, 86 transitions, 187 flow. Second operand 3 states and 246 transitions. [2024-10-31 22:15:24,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 89 transitions, 228 flow [2024-10-31 22:15:24,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 89 transitions, 224 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:24,956 INFO L231 Difference]: Finished difference. Result has 91 places, 88 transitions, 211 flow [2024-10-31 22:15:24,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=91, PETRI_TRANSITIONS=88} [2024-10-31 22:15:24,957 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -4 predicate places. [2024-10-31 22:15:24,957 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 88 transitions, 211 flow [2024-10-31 22:15:24,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:24,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:24,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:24,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:15:24,958 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-31 22:15:24,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:24,962 INFO L85 PathProgramCache]: Analyzing trace with hash -773710453, now seen corresponding path program 1 times [2024-10-31 22:15:24,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:24,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146239073] [2024-10-31 22:15:24,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:24,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:25,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:25,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146239073] [2024-10-31 22:15:25,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146239073] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:25,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290765297] [2024-10-31 22:15:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:25,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:25,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:25,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:25,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:15:25,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:25,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:15:25,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:25,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:25,331 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:25,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290765297] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:25,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:25,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-31 22:15:25,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565062330] [2024-10-31 22:15:25,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:25,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:15:25,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:25,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:15:25,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:15:25,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 99 [2024-10-31 22:15:25,549 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 211 flow. Second operand has 10 states, 10 states have (on average 75.4) internal successors, (754), 10 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:25,549 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:25,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 99 [2024-10-31 22:15:25,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:25,624 INFO L124 PetriNetUnfolderBase]: 9/101 cut-off events. [2024-10-31 22:15:25,624 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-10-31 22:15:25,625 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 101 events. 9/101 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 194 event pairs, 0 based on Foata normal form. 3/100 useless extension candidates. Maximal degree in co-relation 147. Up to 10 conditions per place. [2024-10-31 22:15:25,625 INFO L140 encePairwiseOnDemand]: 94/99 looper letters, 15 selfloop transitions, 4 changer transitions 0/59 dead transitions. [2024-10-31 22:15:25,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 59 transitions, 182 flow [2024-10-31 22:15:25,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:25,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:25,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2024-10-31 22:15:25,627 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7710437710437711 [2024-10-31 22:15:25,628 INFO L175 Difference]: Start difference. First operand has 91 places, 88 transitions, 211 flow. Second operand 6 states and 458 transitions. [2024-10-31 22:15:25,628 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 59 transitions, 182 flow [2024-10-31 22:15:25,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 59 transitions, 160 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:15:25,631 INFO L231 Difference]: Finished difference. Result has 59 places, 52 transitions, 116 flow [2024-10-31 22:15:25,631 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=99, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=116, PETRI_PLACES=59, PETRI_TRANSITIONS=52} [2024-10-31 22:15:25,632 INFO L277 CegarLoopForPetriNet]: 95 programPoint places, -36 predicate places. [2024-10-31 22:15:25,632 INFO L471 AbstractCegarLoop]: Abstraction has has 59 places, 52 transitions, 116 flow [2024-10-31 22:15:25,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 75.4) internal successors, (754), 10 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:25,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:25,633 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:25,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:15:25,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:25,834 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 12 more)] === [2024-10-31 22:15:25,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:25,834 INFO L85 PathProgramCache]: Analyzing trace with hash -542448446, now seen corresponding path program 1 times [2024-10-31 22:15:25,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:25,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338007531] [2024-10-31 22:15:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:25,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:15:25,866 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:15:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:15:25,911 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:15:25,911 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:15:25,912 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2024-10-31 22:15:25,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2024-10-31 22:15:25,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2024-10-31 22:15:25,915 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2024-10-31 22:15:25,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2024-10-31 22:15:25,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2024-10-31 22:15:25,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2024-10-31 22:15:25,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2024-10-31 22:15:25,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2024-10-31 22:15:25,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2024-10-31 22:15:25,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2024-10-31 22:15:25,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2024-10-31 22:15:25,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2024-10-31 22:15:25,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2024-10-31 22:15:25,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2024-10-31 22:15:25,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:15:25,920 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:25,923 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:15:25,923 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:15:25,947 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-31 22:15:25,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 115 places, 120 transitions, 256 flow [2024-10-31 22:15:25,989 INFO L124 PetriNetUnfolderBase]: 22/256 cut-off events. [2024-10-31 22:15:25,989 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-31 22:15:25,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 256 events. 22/256 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 600 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 146. Up to 8 conditions per place. [2024-10-31 22:15:25,991 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 120 transitions, 256 flow [2024-10-31 22:15:25,993 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 120 transitions, 256 flow [2024-10-31 22:15:25,994 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:15:25,996 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d5b9ec6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:15:25,996 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-10-31 22:15:25,999 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:15:25,999 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-10-31 22:15:25,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:15:25,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:25,999 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:26,000 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-10-31 22:15:26,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:26,003 INFO L85 PathProgramCache]: Analyzing trace with hash 424036858, now seen corresponding path program 1 times [2024-10-31 22:15:26,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:26,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671696965] [2024-10-31 22:15:26,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:26,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:26,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:26,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671696965] [2024-10-31 22:15:26,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671696965] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:26,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:26,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:15:26,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552606728] [2024-10-31 22:15:26,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:26,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:15:26,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:26,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:15:26,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:15:26,022 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 120 [2024-10-31 22:15:26,023 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 120 transitions, 256 flow. Second operand has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:26,023 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:26,023 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 120 [2024-10-31 22:15:26,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:26,076 INFO L124 PetriNetUnfolderBase]: 19/254 cut-off events. [2024-10-31 22:15:26,076 INFO L125 PetriNetUnfolderBase]: For 37/43 co-relation queries the response was YES. [2024-10-31 22:15:26,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 254 events. 19/254 cut-off events. For 37/43 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 732 event pairs, 4 based on Foata normal form. 26/246 useless extension candidates. Maximal degree in co-relation 144. Up to 30 conditions per place. [2024-10-31 22:15:26,079 INFO L140 encePairwiseOnDemand]: 109/120 looper letters, 11 selfloop transitions, 0 changer transitions 0/107 dead transitions. [2024-10-31 22:15:26,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 107 transitions, 252 flow [2024-10-31 22:15:26,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:15:26,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:15:26,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 216 transitions. [2024-10-31 22:15:26,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9 [2024-10-31 22:15:26,081 INFO L175 Difference]: Start difference. First operand has 115 places, 120 transitions, 256 flow. Second operand 2 states and 216 transitions. [2024-10-31 22:15:26,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 107 transitions, 252 flow [2024-10-31 22:15:26,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 107 transitions, 252 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:26,084 INFO L231 Difference]: Finished difference. Result has 107 places, 107 transitions, 230 flow [2024-10-31 22:15:26,085 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=230, PETRI_PLACES=107, PETRI_TRANSITIONS=107} [2024-10-31 22:15:26,085 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -8 predicate places. [2024-10-31 22:15:26,086 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 107 transitions, 230 flow [2024-10-31 22:15:26,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 97.5) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:26,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:26,086 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:26,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:15:26,087 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-10-31 22:15:26,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:26,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1451332092, now seen corresponding path program 1 times [2024-10-31 22:15:26,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:26,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953181869] [2024-10-31 22:15:26,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:26,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:26,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:26,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:26,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953181869] [2024-10-31 22:15:26,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953181869] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:26,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:26,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:15:26,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803387568] [2024-10-31 22:15:26,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:26,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:26,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:26,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:26,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:26,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2024-10-31 22:15:26,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 107 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:26,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:26,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2024-10-31 22:15:26,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:26,267 INFO L124 PetriNetUnfolderBase]: 60/451 cut-off events. [2024-10-31 22:15:26,267 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-10-31 22:15:26,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 451 events. 60/451 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 2086 event pairs, 24 based on Foata normal form. 1/395 useless extension candidates. Maximal degree in co-relation 568. Up to 97 conditions per place. [2024-10-31 22:15:26,271 INFO L140 encePairwiseOnDemand]: 117/120 looper letters, 18 selfloop transitions, 2 changer transitions 0/110 dead transitions. [2024-10-31 22:15:26,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 110 transitions, 276 flow [2024-10-31 22:15:26,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:26,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:26,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 294 transitions. [2024-10-31 22:15:26,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2024-10-31 22:15:26,273 INFO L175 Difference]: Start difference. First operand has 107 places, 107 transitions, 230 flow. Second operand 3 states and 294 transitions. [2024-10-31 22:15:26,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 110 transitions, 276 flow [2024-10-31 22:15:26,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 110 transitions, 276 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:15:26,276 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 242 flow [2024-10-31 22:15:26,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2024-10-31 22:15:26,277 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -5 predicate places. [2024-10-31 22:15:26,277 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 242 flow [2024-10-31 22:15:26,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:26,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:26,278 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:26,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:15:26,279 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-10-31 22:15:26,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:26,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1947140101, now seen corresponding path program 1 times [2024-10-31 22:15:26,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:26,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115186102] [2024-10-31 22:15:26,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:26,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:26,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:26,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:26,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:26,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115186102] [2024-10-31 22:15:26,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115186102] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:26,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:26,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:15:26,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930418381] [2024-10-31 22:15:26,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:26,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:15:26,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:26,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:15:26,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:15:26,765 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 120 [2024-10-31 22:15:26,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 242 flow. Second operand has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:26,766 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:26,766 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 120 [2024-10-31 22:15:26,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:26,985 INFO L124 PetriNetUnfolderBase]: 185/628 cut-off events. [2024-10-31 22:15:26,985 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-10-31 22:15:26,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 981 conditions, 628 events. 185/628 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 3492 event pairs, 55 based on Foata normal form. 0/568 useless extension candidates. Maximal degree in co-relation 974. Up to 214 conditions per place. [2024-10-31 22:15:26,991 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 41 selfloop transitions, 5 changer transitions 0/123 dead transitions. [2024-10-31 22:15:26,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 123 transitions, 364 flow [2024-10-31 22:15:26,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:15:26,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-31 22:15:26,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 514 transitions. [2024-10-31 22:15:26,994 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7138888888888889 [2024-10-31 22:15:26,994 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 242 flow. Second operand 6 states and 514 transitions. [2024-10-31 22:15:26,994 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 123 transitions, 364 flow [2024-10-31 22:15:26,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 123 transitions, 362 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:26,998 INFO L231 Difference]: Finished difference. Result has 113 places, 107 transitions, 248 flow [2024-10-31 22:15:26,999 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=248, PETRI_PLACES=113, PETRI_TRANSITIONS=107} [2024-10-31 22:15:27,001 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -2 predicate places. [2024-10-31 22:15:27,001 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 107 transitions, 248 flow [2024-10-31 22:15:27,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 80.0) internal successors, (480), 6 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:27,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:27,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:27,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 22:15:27,003 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-10-31 22:15:27,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:27,004 INFO L85 PathProgramCache]: Analyzing trace with hash -709870816, now seen corresponding path program 1 times [2024-10-31 22:15:27,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:27,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595589373] [2024-10-31 22:15:27,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:27,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:27,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:27,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595589373] [2024-10-31 22:15:27,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595589373] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:27,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:27,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:27,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836618694] [2024-10-31 22:15:27,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:27,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:27,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:27,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:27,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:27,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 120 [2024-10-31 22:15:27,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 107 transitions, 248 flow. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:27,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:27,059 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 120 [2024-10-31 22:15:27,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:27,254 INFO L124 PetriNetUnfolderBase]: 60/772 cut-off events. [2024-10-31 22:15:27,254 INFO L125 PetriNetUnfolderBase]: For 122/386 co-relation queries the response was YES. [2024-10-31 22:15:27,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 772 events. 60/772 cut-off events. For 122/386 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 5064 event pairs, 9 based on Foata normal form. 0/651 useless extension candidates. Maximal degree in co-relation 951. Up to 62 conditions per place. [2024-10-31 22:15:27,261 INFO L140 encePairwiseOnDemand]: 112/120 looper letters, 22 selfloop transitions, 6 changer transitions 0/118 dead transitions. [2024-10-31 22:15:27,262 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 118 transitions, 337 flow [2024-10-31 22:15:27,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:27,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2024-10-31 22:15:27,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8416666666666667 [2024-10-31 22:15:27,264 INFO L175 Difference]: Start difference. First operand has 113 places, 107 transitions, 248 flow. Second operand 3 states and 303 transitions. [2024-10-31 22:15:27,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 118 transitions, 337 flow [2024-10-31 22:15:27,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 118 transitions, 327 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-31 22:15:27,267 INFO L231 Difference]: Finished difference. Result has 112 places, 113 transitions, 290 flow [2024-10-31 22:15:27,268 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=112, PETRI_TRANSITIONS=113} [2024-10-31 22:15:27,268 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -3 predicate places. [2024-10-31 22:15:27,269 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 113 transitions, 290 flow [2024-10-31 22:15:27,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:27,269 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:27,269 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:27,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-31 22:15:27,270 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-10-31 22:15:27,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:27,270 INFO L85 PathProgramCache]: Analyzing trace with hash 657915091, now seen corresponding path program 1 times [2024-10-31 22:15:27,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:27,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86343486] [2024-10-31 22:15:27,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:27,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:27,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:27,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86343486] [2024-10-31 22:15:27,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86343486] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:27,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:27,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:15:27,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263182886] [2024-10-31 22:15:27,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:27,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:15:27,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:27,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:15:27,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:15:27,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 120 [2024-10-31 22:15:27,321 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 113 transitions, 290 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:27,321 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:27,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 120 [2024-10-31 22:15:27,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:27,677 INFO L124 PetriNetUnfolderBase]: 273/1920 cut-off events. [2024-10-31 22:15:27,677 INFO L125 PetriNetUnfolderBase]: For 374/820 co-relation queries the response was YES. [2024-10-31 22:15:27,686 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2710 conditions, 1920 events. 273/1920 cut-off events. For 374/820 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 16766 event pairs, 93 based on Foata normal form. 1/1652 useless extension candidates. Maximal degree in co-relation 2702. Up to 395 conditions per place. [2024-10-31 22:15:27,693 INFO L140 encePairwiseOnDemand]: 109/120 looper letters, 27 selfloop transitions, 8 changer transitions 0/126 dead transitions. [2024-10-31 22:15:27,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 126 transitions, 405 flow [2024-10-31 22:15:27,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:15:27,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:15:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-10-31 22:15:27,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-10-31 22:15:27,695 INFO L175 Difference]: Start difference. First operand has 112 places, 113 transitions, 290 flow. Second operand 3 states and 300 transitions. [2024-10-31 22:15:27,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 126 transitions, 405 flow [2024-10-31 22:15:27,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 126 transitions, 389 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:27,701 INFO L231 Difference]: Finished difference. Result has 114 places, 121 transitions, 348 flow [2024-10-31 22:15:27,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=348, PETRI_PLACES=114, PETRI_TRANSITIONS=121} [2024-10-31 22:15:27,702 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -1 predicate places. [2024-10-31 22:15:27,702 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 121 transitions, 348 flow [2024-10-31 22:15:27,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:27,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:27,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:27,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-31 22:15:27,703 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-10-31 22:15:27,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:27,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1536806754, now seen corresponding path program 1 times [2024-10-31 22:15:27,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:27,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373404497] [2024-10-31 22:15:27,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:27,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:27,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:27,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:27,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:27,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373404497] [2024-10-31 22:15:27,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373404497] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:15:27,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678292713] [2024-10-31 22:15:27,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:27,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:27,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:15:27,799 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:15:27,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:15:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:27,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:15:27,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:15:27,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:27,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:15:28,056 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:15:28,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678292713] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:15:28,057 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:15:28,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-31 22:15:28,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144899262] [2024-10-31 22:15:28,058 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:15:28,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 22:15:28,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:28,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 22:15:28,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:15:28,189 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 120 [2024-10-31 22:15:28,191 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 121 transitions, 348 flow. Second operand has 10 states, 10 states have (on average 90.4) internal successors, (904), 10 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:28,191 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:28,191 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 120 [2024-10-31 22:15:28,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:28,496 INFO L124 PetriNetUnfolderBase]: 168/824 cut-off events. [2024-10-31 22:15:28,497 INFO L125 PetriNetUnfolderBase]: For 366/427 co-relation queries the response was YES. [2024-10-31 22:15:28,504 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1458 conditions, 824 events. 168/824 cut-off events. For 366/427 co-relation queries the response was YES. Maximal size of possible extension queue 85. Compared 5933 event pairs, 5 based on Foata normal form. 37/806 useless extension candidates. Maximal degree in co-relation 1449. Up to 104 conditions per place. [2024-10-31 22:15:28,509 INFO L140 encePairwiseOnDemand]: 115/120 looper letters, 47 selfloop transitions, 7 changer transitions 0/119 dead transitions. [2024-10-31 22:15:28,509 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 119 transitions, 508 flow [2024-10-31 22:15:28,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:15:28,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-31 22:15:28,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 832 transitions. [2024-10-31 22:15:28,517 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7703703703703704 [2024-10-31 22:15:28,517 INFO L175 Difference]: Start difference. First operand has 114 places, 121 transitions, 348 flow. Second operand 9 states and 832 transitions. [2024-10-31 22:15:28,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 119 transitions, 508 flow [2024-10-31 22:15:28,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 119 transitions, 478 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:15:28,529 INFO L231 Difference]: Finished difference. Result has 88 places, 87 transitions, 260 flow [2024-10-31 22:15:28,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=260, PETRI_PLACES=88, PETRI_TRANSITIONS=87} [2024-10-31 22:15:28,531 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -27 predicate places. [2024-10-31 22:15:28,531 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 87 transitions, 260 flow [2024-10-31 22:15:28,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 90.4) internal successors, (904), 10 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:28,532 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:28,533 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:28,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:15:28,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:15:28,734 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-10-31 22:15:28,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:28,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1661324039, now seen corresponding path program 1 times [2024-10-31 22:15:28,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:28,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981720314] [2024-10-31 22:15:28,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:28,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:15:28,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:28,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981720314] [2024-10-31 22:15:28,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981720314] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:28,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:28,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:28,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638429643] [2024-10-31 22:15:28,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:28,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:28,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:28,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:28,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:28,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 120 [2024-10-31 22:15:28,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 87 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:28,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:28,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 120 [2024-10-31 22:15:28,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:29,095 INFO L124 PetriNetUnfolderBase]: 28/295 cut-off events. [2024-10-31 22:15:29,095 INFO L125 PetriNetUnfolderBase]: For 44/46 co-relation queries the response was YES. [2024-10-31 22:15:29,096 INFO L83 FinitePrefix]: Finished finitePrefix Result has 470 conditions, 295 events. 28/295 cut-off events. For 44/46 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1438 event pairs, 4 based on Foata normal form. 7/284 useless extension candidates. Maximal degree in co-relation 461. Up to 29 conditions per place. [2024-10-31 22:15:29,098 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 23 selfloop transitions, 6 changer transitions 0/97 dead transitions. [2024-10-31 22:15:29,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 97 transitions, 363 flow [2024-10-31 22:15:29,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:29,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:15:29,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 493 transitions. [2024-10-31 22:15:29,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8216666666666667 [2024-10-31 22:15:29,100 INFO L175 Difference]: Start difference. First operand has 88 places, 87 transitions, 260 flow. Second operand 5 states and 493 transitions. [2024-10-31 22:15:29,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 97 transitions, 363 flow [2024-10-31 22:15:29,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 97 transitions, 348 flow, removed 1 selfloop flow, removed 5 redundant places. [2024-10-31 22:15:29,105 INFO L231 Difference]: Finished difference. Result has 89 places, 88 transitions, 280 flow [2024-10-31 22:15:29,106 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=280, PETRI_PLACES=89, PETRI_TRANSITIONS=88} [2024-10-31 22:15:29,107 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -26 predicate places. [2024-10-31 22:15:29,107 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 88 transitions, 280 flow [2024-10-31 22:15:29,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:29,108 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:29,108 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:29,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-31 22:15:29,108 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting salethreadErr0ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-10-31 22:15:29,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:29,109 INFO L85 PathProgramCache]: Analyzing trace with hash 659768417, now seen corresponding path program 1 times [2024-10-31 22:15:29,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:29,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153720465] [2024-10-31 22:15:29,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:29,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:29,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:15:29,223 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-31 22:15:29,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:15:29,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153720465] [2024-10-31 22:15:29,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153720465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:15:29,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:15:29,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:15:29,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525884410] [2024-10-31 22:15:29,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:15:29,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:15:29,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:15:29,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:15:29,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:15:29,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 120 [2024-10-31 22:15:29,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 88 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:29,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:15:29,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 120 [2024-10-31 22:15:29,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:15:29,331 INFO L124 PetriNetUnfolderBase]: 22/261 cut-off events. [2024-10-31 22:15:29,331 INFO L125 PetriNetUnfolderBase]: For 108/116 co-relation queries the response was YES. [2024-10-31 22:15:29,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 261 events. 22/261 cut-off events. For 108/116 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1072 event pairs, 4 based on Foata normal form. 12/264 useless extension candidates. Maximal degree in co-relation 449. Up to 33 conditions per place. [2024-10-31 22:15:29,333 INFO L140 encePairwiseOnDemand]: 114/120 looper letters, 19 selfloop transitions, 7 changer transitions 0/94 dead transitions. [2024-10-31 22:15:29,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 94 transitions, 361 flow [2024-10-31 22:15:29,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 22:15:29,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-31 22:15:29,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 489 transitions. [2024-10-31 22:15:29,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.815 [2024-10-31 22:15:29,338 INFO L175 Difference]: Start difference. First operand has 89 places, 88 transitions, 280 flow. Second operand 5 states and 489 transitions. [2024-10-31 22:15:29,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 94 transitions, 361 flow [2024-10-31 22:15:29,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 94 transitions, 358 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-31 22:15:29,346 INFO L231 Difference]: Finished difference. Result has 94 places, 89 transitions, 314 flow [2024-10-31 22:15:29,346 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=120, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=314, PETRI_PLACES=94, PETRI_TRANSITIONS=89} [2024-10-31 22:15:29,347 INFO L277 CegarLoopForPetriNet]: 115 programPoint places, -21 predicate places. [2024-10-31 22:15:29,347 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 89 transitions, 314 flow [2024-10-31 22:15:29,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.25) internal successors, (381), 4 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:15:29,347 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:15:29,348 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:29,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 22:15:29,348 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting salethreadErr1ASSERT_VIOLATIONDATA_RACE === [salethreadErr0ASSERT_VIOLATIONDATA_RACE, salethreadErr1ASSERT_VIOLATIONDATA_RACE, salethreadErr2ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2024-10-31 22:15:29,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:15:29,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1201801134, now seen corresponding path program 1 times [2024-10-31 22:15:29,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:15:29,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085935357] [2024-10-31 22:15:29,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:15:29,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:15:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:15:29,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:15:29,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:15:29,453 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:15:29,455 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:15:29,455 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (18 of 19 remaining) [2024-10-31 22:15:29,456 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (17 of 19 remaining) [2024-10-31 22:15:29,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (16 of 19 remaining) [2024-10-31 22:15:29,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (15 of 19 remaining) [2024-10-31 22:15:29,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (14 of 19 remaining) [2024-10-31 22:15:29,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (13 of 19 remaining) [2024-10-31 22:15:29,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (12 of 19 remaining) [2024-10-31 22:15:29,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 19 remaining) [2024-10-31 22:15:29,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 19 remaining) [2024-10-31 22:15:29,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 19 remaining) [2024-10-31 22:15:29,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (8 of 19 remaining) [2024-10-31 22:15:29,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 19 remaining) [2024-10-31 22:15:29,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (6 of 19 remaining) [2024-10-31 22:15:29,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr1ASSERT_VIOLATIONDATA_RACE (5 of 19 remaining) [2024-10-31 22:15:29,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (4 of 19 remaining) [2024-10-31 22:15:29,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (3 of 19 remaining) [2024-10-31 22:15:29,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr0ASSERT_VIOLATIONDATA_RACE (2 of 19 remaining) [2024-10-31 22:15:29,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr2ASSERT_VIOLATIONDATA_RACE (1 of 19 remaining) [2024-10-31 22:15:29,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location salethreadErr3ASSERT_VIOLATIONDATA_RACE (0 of 19 remaining) [2024-10-31 22:15:29,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-31 22:15:29,463 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:15:29,532 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2024-10-31 22:15:29,532 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 22:15:29,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 10:15:29 BasicIcfg [2024-10-31 22:15:29,540 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 22:15:29,540 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:15:29,540 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:15:29,541 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:15:29,541 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:15:22" (3/4) ... [2024-10-31 22:15:29,542 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-31 22:15:29,611 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:15:29,614 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:15:29,615 INFO L158 Benchmark]: Toolchain (without parser) took 8141.24ms. Allocated memory was 155.2MB in the beginning and 239.1MB in the end (delta: 83.9MB). Free memory was 119.5MB in the beginning and 74.6MB in the end (delta: 44.9MB). Peak memory consumption was 130.8MB. Max. memory is 16.1GB. [2024-10-31 22:15:29,615 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:15:29,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 634.79ms. Allocated memory is still 155.2MB. Free memory was 119.5MB in the beginning and 97.3MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-31 22:15:29,616 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.05ms. Allocated memory is still 155.2MB. Free memory was 97.3MB in the beginning and 95.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:15:29,616 INFO L158 Benchmark]: Boogie Preprocessor took 31.78ms. Allocated memory is still 155.2MB. Free memory was 95.3MB in the beginning and 93.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:15:29,617 INFO L158 Benchmark]: RCFGBuilder took 519.13ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 75.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-31 22:15:29,617 INFO L158 Benchmark]: TraceAbstraction took 6825.45ms. Allocated memory was 155.2MB in the beginning and 239.1MB in the end (delta: 83.9MB). Free memory was 74.3MB in the beginning and 86.1MB in the end (delta: -11.8MB). Peak memory consumption was 74.2MB. Max. memory is 16.1GB. [2024-10-31 22:15:29,618 INFO L158 Benchmark]: Witness Printer took 73.88ms. Allocated memory is still 239.1MB. Free memory was 86.1MB in the beginning and 74.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:15:29,620 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 155.2MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 634.79ms. Allocated memory is still 155.2MB. Free memory was 119.5MB in the beginning and 97.3MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.05ms. Allocated memory is still 155.2MB. Free memory was 97.3MB in the beginning and 95.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.78ms. Allocated memory is still 155.2MB. Free memory was 95.3MB in the beginning and 93.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 519.13ms. Allocated memory is still 155.2MB. Free memory was 93.5MB in the beginning and 75.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 6825.45ms. Allocated memory was 155.2MB in the beginning and 239.1MB in the end (delta: 83.9MB). Free memory was 74.3MB in the beginning and 86.1MB in the end (delta: -11.8MB). Peak memory consumption was 74.2MB. Max. memory is 16.1GB. * Witness Printer took 73.88ms. Allocated memory is still 239.1MB. Free memory was 86.1MB in the beginning and 74.6MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 722]: Data race detected Data race detected The following path leads to a data race: [L717] 0 int numberOfSeatsSold; VAL [numberOfSeatsSold=0] [L718] 0 int stopSales; VAL [numberOfSeatsSold=0, stopSales=0] [L719] 0 int numOfTickets; VAL [numOfTickets=0, numberOfSeatsSold=0, stopSales=0] [L736] 0 pthread_t salethreads[25]; VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, numOfTickets=0, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L738] 0 numOfTickets = 25 VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L741] 0 numberOfSeatsSold = 0 VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L744] 0 stopSales = 0 VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] 0 int i = 0; VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, i=0, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND TRUE 0 i < 25 VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, i=0, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(argc)=102, \old(argv)={106:103}, argc=102, i=0, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=102, \old(argv)={106:103}, argc=102, i=0, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L721] 1 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L746] 0 i++ VAL [\old(arg)={0:0}, \old(argc)=102, \old(argv)={106:103}, arg={0:0}, argc=102, i=1, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L746] COND TRUE 0 i < 25 VAL [\old(arg)={0:0}, \old(argc)=102, \old(argv)={106:103}, arg={0:0}, argc=102, i=1, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=102, \old(argv)={106:103}, arg={0:0}, argc=102, i=1, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L747] FCALL, FORK 0 pthread_create(&salethreads[i], 0, salethread, ((void *)0)) VAL [\old(arg)={0:0}, \old(argc)=102, \old(argv)={106:103}, arg={0:0}, argc=102, i=1, numOfTickets=25, numberOfSeatsSold=0, salethreads={8:0}, stopSales=0] [L721] 2 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L721] COND TRUE 1 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L722] 1 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L721] 2 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L721] COND TRUE 2 !stopSales VAL [\old(arg)={0:0}, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L723] COND FALSE 1 !(_numberOfSeatsSold >= (25 - (((25 / 10) == 0) ? 1 : (25 / 10)))) VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=25, numberOfSeatsSold=0, stopSales=0] [L729] 1 numberOfSeatsSold = _numberOfSeatsSold + 1 VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=25, numberOfSeatsSold=1, stopSales=0] [L722] 2 int _numberOfSeatsSold = numberOfSeatsSold; VAL [\old(arg)={0:0}, _numberOfSeatsSold=0, arg={0:0}, numOfTickets=25, numberOfSeatsSold=1, stopSales=0] Now there is a data race on ~numberOfSeatsSold~0 between C: numberOfSeatsSold = _numberOfSeatsSold + 1 [729] and C: int _numberOfSeatsSold = numberOfSeatsSold; [722] - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 729]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 752]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 750]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 747]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 111 locations, 15 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 200 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 136 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 356 IncrementalHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 9 mSDtfsCounter, 356 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=211occurred in iteration=5, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 279 NumberOfCodeBlocks, 279 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 270 ConstructedInterpolants, 0 QuantifiedInterpolants, 499 SizeOfPredicates, 2 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 0/3 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 129 locations, 19 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: 3.5s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 317 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 215 mSDsluCounter, 70 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 596 IncrementalHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 16 mSDtfsCounter, 596 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=5, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 412 NumberOfCodeBlocks, 412 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 386 ConstructedInterpolants, 0 QuantifiedInterpolants, 775 SizeOfPredicates, 2 NumberOfNonLiveVariables, 127 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 22/25 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! [2024-10-31 22:15:29,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_034e4d17-6879-4848-b42a-7e56980ceeca/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE