./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:36:16,045 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:36:16,165 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:36:16,174 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:36:16,175 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:36:16,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:36:16,216 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:36:16,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:36:16,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:36:16,222 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:36:16,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:36:16,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:36:16,224 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:36:16,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:36:16,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:36:16,227 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:36:16,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:36:16,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:36:16,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:36:16,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:36:16,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:36:16,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:36:16,230 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:36:16,230 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:36:16,231 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:36:16,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:36:16,231 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:36:16,232 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:36:16,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:36:16,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:36:16,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:36:16,235 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:36:16,235 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:36:16,235 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:36:16,236 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:36:16,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:36:16,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:36:16,236 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:36:16,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:36:16,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:36:16,237 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:36:16,237 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_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81147b3e42a82bd92b2fd1c17836bc41bf8598e66ad2317620561a8ac507fa9a [2023-11-06 22:36:16,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:36:16,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:36:16,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:36:16,669 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:36:16,670 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:36:16,671 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2023-11-06 22:36:19,783 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:36:20,177 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:36:20,181 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-1.i [2023-11-06 22:36:20,209 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/data/eb94308fa/bb9b33cac94248ecadf6154cde187d69/FLAG40175d867 [2023-11-06 22:36:20,229 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/data/eb94308fa/bb9b33cac94248ecadf6154cde187d69 [2023-11-06 22:36:20,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:36:20,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:36:20,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:20,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:36:20,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:36:20,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:20" (1/1) ... [2023-11-06 22:36:20,253 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bbccfe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:20, skipping insertion in model container [2023-11-06 22:36:20,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:36:20" (1/1) ... [2023-11-06 22:36:20,326 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:36:21,089 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:21,111 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:36:21,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:36:21,260 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:36:21,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21 WrapperNode [2023-11-06 22:36:21,262 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:36:21,263 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:21,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:36:21,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:36:21,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (1/1) ... [2023-11-06 22:36:21,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (1/1) ... [2023-11-06 22:36:21,320 INFO L138 Inliner]: procedures = 364, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 81 [2023-11-06 22:36:21,321 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:36:21,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:36:21,322 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:36:21,322 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:36:21,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (1/1) ... [2023-11-06 22:36:21,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (1/1) ... [2023-11-06 22:36:21,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (1/1) ... [2023-11-06 22:36:21,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (1/1) ... [2023-11-06 22:36:21,346 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (1/1) ... [2023-11-06 22:36:21,350 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (1/1) ... [2023-11-06 22:36:21,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (1/1) ... [2023-11-06 22:36:21,361 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (1/1) ... [2023-11-06 22:36:21,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:36:21,366 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:36:21,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:36:21,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:36:21,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (1/1) ... [2023-11-06 22:36:21,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:36:21,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:36:21,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:36:21,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:36:21,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:36:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:36:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:36:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:36:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:36:21,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:36:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2023-11-06 22:36:21,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2023-11-06 22:36:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:36:21,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:36:21,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:36:21,458 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:36:21,657 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:36:21,662 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:36:21,929 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:36:21,938 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:36:21,938 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-06 22:36:21,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:21 BoogieIcfgContainer [2023-11-06 22:36:21,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:36:21,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:36:21,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:36:21,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:36:21,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:36:20" (1/3) ... [2023-11-06 22:36:21,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d05b78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:21, skipping insertion in model container [2023-11-06 22:36:21,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:36:21" (2/3) ... [2023-11-06 22:36:21,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d05b78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:36:21, skipping insertion in model container [2023-11-06 22:36:21,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:21" (3/3) ... [2023-11-06 22:36:21,952 INFO L112 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2023-11-06 22:36:21,961 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:36:21,973 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:36:21,973 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-11-06 22:36:21,973 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:36:22,037 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-06 22:36:22,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 122 transitions, 251 flow [2023-11-06 22:36:22,138 INFO L124 PetriNetUnfolderBase]: 8/121 cut-off events. [2023-11-06 22:36:22,138 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:36:22,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 121 events. 8/121 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 164 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-11-06 22:36:22,145 INFO L82 GeneralOperation]: Start removeDead. Operand has 118 places, 122 transitions, 251 flow [2023-11-06 22:36:22,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 98 places, 100 transitions, 206 flow [2023-11-06 22:36:22,155 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:36:22,170 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 100 transitions, 206 flow [2023-11-06 22:36:22,172 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 100 transitions, 206 flow [2023-11-06 22:36:22,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 98 places, 100 transitions, 206 flow [2023-11-06 22:36:22,212 INFO L124 PetriNetUnfolderBase]: 6/100 cut-off events. [2023-11-06 22:36:22,212 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:36:22,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 100 events. 6/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 146 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2023-11-06 22:36:22,216 INFO L119 LiptonReduction]: Number of co-enabled transitions 1782 [2023-11-06 22:36:24,906 INFO L134 LiptonReduction]: Checked pairs total: 4180 [2023-11-06 22:36:24,907 INFO L136 LiptonReduction]: Total number of compositions: 81 [2023-11-06 22:36:24,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:36:24,952 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@37144ae1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:36:24,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-06 22:36:24,954 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:36:24,955 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:36:24,955 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:36:24,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:24,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:36:24,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-06 22:36:24,963 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:24,963 INFO L85 PathProgramCache]: Analyzing trace with hash 421, now seen corresponding path program 1 times [2023-11-06 22:36:24,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:24,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14335524] [2023-11-06 22:36:24,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:24,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:25,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:25,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:25,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14335524] [2023-11-06 22:36:25,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14335524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:25,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:25,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:36:25,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553575194] [2023-11-06 22:36:25,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:25,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:36:25,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:25,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:36:25,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:36:25,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 203 [2023-11-06 22:36:25,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 29 transitions, 64 flow. Second operand has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:25,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 203 [2023-11-06 22:36:25,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:25,270 INFO L124 PetriNetUnfolderBase]: 57/161 cut-off events. [2023-11-06 22:36:25,271 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:36:25,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 161 events. 57/161 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 627 event pairs, 42 based on Foata normal form. 1/135 useless extension candidates. Maximal degree in co-relation 270. Up to 116 conditions per place. [2023-11-06 22:36:25,276 INFO L140 encePairwiseOnDemand]: 200/203 looper letters, 17 selfloop transitions, 0 changer transitions 1/26 dead transitions. [2023-11-06 22:36:25,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 26 transitions, 94 flow [2023-11-06 22:36:25,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:36:25,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:36:25,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 243 transitions. [2023-11-06 22:36:25,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5985221674876847 [2023-11-06 22:36:25,295 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 243 transitions. [2023-11-06 22:36:25,296 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 243 transitions. [2023-11-06 22:36:25,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:25,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 243 transitions. [2023-11-06 22:36:25,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 121.5) internal successors, (243), 2 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) [2023-11-06 22:36:25,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,317 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,319 INFO L175 Difference]: Start difference. First operand has 31 places, 29 transitions, 64 flow. Second operand 2 states and 243 transitions. [2023-11-06 22:36:25,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 26 transitions, 94 flow [2023-11-06 22:36:25,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 26 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:36:25,324 INFO L231 Difference]: Finished difference. Result has 27 places, 25 transitions, 51 flow [2023-11-06 22:36:25,327 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=51, PETRI_PLACES=27, PETRI_TRANSITIONS=25} [2023-11-06 22:36:25,332 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -4 predicate places. [2023-11-06 22:36:25,332 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 25 transitions, 51 flow [2023-11-06 22:36:25,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 111.5) internal successors, (223), 2 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,333 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:25,333 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:36:25,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:36:25,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-06 22:36:25,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:25,334 INFO L85 PathProgramCache]: Analyzing trace with hash -565142988, now seen corresponding path program 1 times [2023-11-06 22:36:25,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:25,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299929323] [2023-11-06 22:36:25,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:25,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:25,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:25,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:25,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:25,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299929323] [2023-11-06 22:36:25,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299929323] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:25,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:25,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:36:25,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515177975] [2023-11-06 22:36:25,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:25,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:36:25,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:25,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:36:25,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:36:25,536 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 203 [2023-11-06 22:36:25,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:25,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 203 [2023-11-06 22:36:25,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:25,644 INFO L124 PetriNetUnfolderBase]: 136/295 cut-off events. [2023-11-06 22:36:25,644 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:36:25,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 578 conditions, 295 events. 136/295 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1119 event pairs, 42 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 575. Up to 155 conditions per place. [2023-11-06 22:36:25,648 INFO L140 encePairwiseOnDemand]: 195/203 looper letters, 36 selfloop transitions, 6 changer transitions 0/44 dead transitions. [2023-11-06 22:36:25,648 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 44 transitions, 173 flow [2023-11-06 22:36:25,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:36:25,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:36:25,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2023-11-06 22:36:25,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5599343185550082 [2023-11-06 22:36:25,652 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2023-11-06 22:36:25,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2023-11-06 22:36:25,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:25,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2023-11-06 22:36:25,655 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,658 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,658 INFO L175 Difference]: Start difference. First operand has 27 places, 25 transitions, 51 flow. Second operand 3 states and 341 transitions. [2023-11-06 22:36:25,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 44 transitions, 173 flow [2023-11-06 22:36:25,659 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 44 transitions, 173 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:36:25,661 INFO L231 Difference]: Finished difference. Result has 30 places, 31 transitions, 103 flow [2023-11-06 22:36:25,661 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=103, PETRI_PLACES=30, PETRI_TRANSITIONS=31} [2023-11-06 22:36:25,662 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -1 predicate places. [2023-11-06 22:36:25,662 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 31 transitions, 103 flow [2023-11-06 22:36:25,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,663 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:25,663 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:25,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:36:25,663 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-06 22:36:25,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:25,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1286505873, now seen corresponding path program 1 times [2023-11-06 22:36:25,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:25,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366115960] [2023-11-06 22:36:25,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:25,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:25,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:25,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:25,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:25,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366115960] [2023-11-06 22:36:25,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366115960] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:25,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:25,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:36:25,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177835553] [2023-11-06 22:36:25,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:25,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:36:25,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:25,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:36:25,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:36:25,788 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 203 [2023-11-06 22:36:25,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 31 transitions, 103 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:25,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 203 [2023-11-06 22:36:25,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:25,885 INFO L124 PetriNetUnfolderBase]: 127/284 cut-off events. [2023-11-06 22:36:25,886 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-11-06 22:36:25,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 678 conditions, 284 events. 127/284 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1079 event pairs, 62 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 673. Up to 230 conditions per place. [2023-11-06 22:36:25,892 INFO L140 encePairwiseOnDemand]: 198/203 looper letters, 28 selfloop transitions, 6 changer transitions 1/42 dead transitions. [2023-11-06 22:36:25,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 42 transitions, 205 flow [2023-11-06 22:36:25,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:36:25,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:36:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 328 transitions. [2023-11-06 22:36:25,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5385878489326765 [2023-11-06 22:36:25,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 328 transitions. [2023-11-06 22:36:25,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 328 transitions. [2023-11-06 22:36:25,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:25,896 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 328 transitions. [2023-11-06 22:36:25,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,902 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,902 INFO L175 Difference]: Start difference. First operand has 30 places, 31 transitions, 103 flow. Second operand 3 states and 328 transitions. [2023-11-06 22:36:25,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 42 transitions, 205 flow [2023-11-06 22:36:25,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 42 transitions, 189 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:36:25,908 INFO L231 Difference]: Finished difference. Result has 31 places, 35 transitions, 133 flow [2023-11-06 22:36:25,908 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=133, PETRI_PLACES=31, PETRI_TRANSITIONS=35} [2023-11-06 22:36:25,910 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 0 predicate places. [2023-11-06 22:36:25,913 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 35 transitions, 133 flow [2023-11-06 22:36:25,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:25,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:25,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:25,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:36:25,915 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_function_mutexErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-06 22:36:25,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:25,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1274734801, now seen corresponding path program 1 times [2023-11-06 22:36:25,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:25,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522347134] [2023-11-06 22:36:25,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:25,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:26,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:26,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:26,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522347134] [2023-11-06 22:36:26,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522347134] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:26,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:26,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:36:26,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622695967] [2023-11-06 22:36:26,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:26,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:36:26,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:26,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:36:26,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:36:26,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 203 [2023-11-06 22:36:26,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 35 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:26,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 203 [2023-11-06 22:36:26,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:26,152 INFO L124 PetriNetUnfolderBase]: 138/295 cut-off events. [2023-11-06 22:36:26,152 INFO L125 PetriNetUnfolderBase]: For 123/128 co-relation queries the response was YES. [2023-11-06 22:36:26,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 750 conditions, 295 events. 138/295 cut-off events. For 123/128 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1065 event pairs, 59 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 744. Up to 247 conditions per place. [2023-11-06 22:36:26,155 INFO L140 encePairwiseOnDemand]: 198/203 looper letters, 29 selfloop transitions, 8 changer transitions 1/45 dead transitions. [2023-11-06 22:36:26,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 45 transitions, 243 flow [2023-11-06 22:36:26,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:36:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:36:26,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 333 transitions. [2023-11-06 22:36:26,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5467980295566502 [2023-11-06 22:36:26,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 333 transitions. [2023-11-06 22:36:26,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 333 transitions. [2023-11-06 22:36:26,158 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:26,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 333 transitions. [2023-11-06 22:36:26,160 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,163 INFO L175 Difference]: Start difference. First operand has 31 places, 35 transitions, 133 flow. Second operand 3 states and 333 transitions. [2023-11-06 22:36:26,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 45 transitions, 243 flow [2023-11-06 22:36:26,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 45 transitions, 235 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:36:26,168 INFO L231 Difference]: Finished difference. Result has 33 places, 39 transitions, 179 flow [2023-11-06 22:36:26,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=179, PETRI_PLACES=33, PETRI_TRANSITIONS=39} [2023-11-06 22:36:26,169 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, 2 predicate places. [2023-11-06 22:36:26,170 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 39 transitions, 179 flow [2023-11-06 22:36:26,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:36:26,171 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:36:26,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:36:26,171 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-06 22:36:26,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:36:26,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1258960052, now seen corresponding path program 1 times [2023-11-06 22:36:26,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:36:26,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683672257] [2023-11-06 22:36:26,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:36:26,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:36:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:36:26,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:36:26,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:36:26,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683672257] [2023-11-06 22:36:26,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683672257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:36:26,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:36:26,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:36:26,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005753052] [2023-11-06 22:36:26,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:36:26,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:36:26,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:36:26,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:36:26,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:36:26,295 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 203 [2023-11-06 22:36:26,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 39 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:36:26,297 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 203 [2023-11-06 22:36:26,297 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:36:26,337 INFO L124 PetriNetUnfolderBase]: 28/77 cut-off events. [2023-11-06 22:36:26,337 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-11-06 22:36:26,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 77 events. 28/77 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 217 event pairs, 4 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 188. Up to 45 conditions per place. [2023-11-06 22:36:26,338 INFO L140 encePairwiseOnDemand]: 199/203 looper letters, 0 selfloop transitions, 0 changer transitions 25/25 dead transitions. [2023-11-06 22:36:26,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 25 transitions, 123 flow [2023-11-06 22:36:26,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:36:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:36:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 341 transitions. [2023-11-06 22:36:26,341 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5599343185550082 [2023-11-06 22:36:26,341 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 341 transitions. [2023-11-06 22:36:26,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 341 transitions. [2023-11-06 22:36:26,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:36:26,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 341 transitions. [2023-11-06 22:36:26,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,346 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 203.0) internal successors, (812), 4 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,346 INFO L175 Difference]: Start difference. First operand has 33 places, 39 transitions, 179 flow. Second operand 3 states and 341 transitions. [2023-11-06 22:36:26,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 25 transitions, 123 flow [2023-11-06 22:36:26,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 25 transitions, 93 flow, removed 6 selfloop flow, removed 7 redundant places. [2023-11-06 22:36:26,348 INFO L231 Difference]: Finished difference. Result has 24 places, 0 transitions, 0 flow [2023-11-06 22:36:26,348 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=203, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=24, PETRI_TRANSITIONS=0} [2023-11-06 22:36:26,349 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -7 predicate places. [2023-11-06 22:36:26,349 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 0 transitions, 0 flow [2023-11-06 22:36:26,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:36:26,352 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 10 remaining) [2023-11-06 22:36:26,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 10 remaining) [2023-11-06 22:36:26,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 10 remaining) [2023-11-06 22:36:26,353 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 10 remaining) [2023-11-06 22:36:26,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 10 remaining) [2023-11-06 22:36:26,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2023-11-06 22:36:26,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE (3 of 10 remaining) [2023-11-06 22:36:26,354 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr1ASSERT_VIOLATIONDATA_RACE (2 of 10 remaining) [2023-11-06 22:36:26,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr0ASSERT_VIOLATIONDATA_RACE (1 of 10 remaining) [2023-11-06 22:36:26,355 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_function_mutexErr1ASSERT_VIOLATIONDATA_RACE (0 of 10 remaining) [2023-11-06 22:36:26,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:36:26,356 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 22:36:26,361 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:36:26,361 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:36:26,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:36:26 BasicIcfg [2023-11-06 22:36:26,366 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:36:26,366 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:36:26,366 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:36:26,367 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:36:26,367 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:36:21" (3/4) ... [2023-11-06 22:36:26,369 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:36:26,373 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_function_mutex [2023-11-06 22:36:26,377 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-06 22:36:26,378 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-06 22:36:26,378 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:36:26,378 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:36:26,431 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:36:26,432 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:36:26,432 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:36:26,433 INFO L158 Benchmark]: Toolchain (without parser) took 6193.07ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 108.6MB in the beginning and 92.0MB in the end (delta: 16.6MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,433 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:36:26,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1019.31ms. Allocated memory is still 151.0MB. Free memory was 108.2MB in the beginning and 91.6MB in the end (delta: 16.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,434 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.54ms. Allocated memory is still 151.0MB. Free memory was 91.6MB in the beginning and 89.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,434 INFO L158 Benchmark]: Boogie Preprocessor took 44.13ms. Allocated memory is still 151.0MB. Free memory was 89.1MB in the beginning and 87.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,435 INFO L158 Benchmark]: RCFGBuilder took 574.73ms. Allocated memory is still 151.0MB. Free memory was 87.4MB in the beginning and 72.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,435 INFO L158 Benchmark]: TraceAbstraction took 4420.98ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 71.6MB in the beginning and 95.1MB in the end (delta: -23.6MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,436 INFO L158 Benchmark]: Witness Printer took 65.88ms. Allocated memory is still 182.5MB. Free memory was 95.1MB in the beginning and 92.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:36:26,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1019.31ms. Allocated memory is still 151.0MB. Free memory was 108.2MB in the beginning and 91.6MB in the end (delta: 16.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.54ms. Allocated memory is still 151.0MB. Free memory was 91.6MB in the beginning and 89.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.13ms. Allocated memory is still 151.0MB. Free memory was 89.1MB in the beginning and 87.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.73ms. Allocated memory is still 151.0MB. Free memory was 87.4MB in the beginning and 72.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4420.98ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 71.6MB in the beginning and 95.1MB in the end (delta: -23.6MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Witness Printer took 65.88ms. Allocated memory is still 182.5MB. Free memory was 95.1MB in the beginning and 92.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 98 PlacesBefore, 31 PlacesAfterwards, 100 TransitionsBefore, 29 TransitionsAfterwards, 1782 CoEnabledTransitionPairs, 6 FixpointIterations, 35 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 5 ConcurrentYvCompositions, 4 ChoiceCompositions, 81 TotalNumberOfCompositions, 4180 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1924, independent: 1711, independent conditional: 0, independent unconditional: 1711, dependent: 213, dependent conditional: 0, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 958, independent: 927, independent conditional: 0, independent unconditional: 927, dependent: 31, dependent conditional: 0, dependent unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1924, independent: 784, independent conditional: 0, independent unconditional: 784, dependent: 182, dependent conditional: 0, dependent unconditional: 182, unknown: 958, unknown conditional: 0, unknown unconditional: 958] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 75, Positive conditional cache size: 0, Positive unconditional cache size: 75, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1342]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1350]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1353]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1350]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1357]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1326]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1329]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 142 locations, 10 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: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 284 IncrementalHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 12 mSDtfsCounter, 284 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=4, InterpolantAutomatonStates: 14, 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, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:36:26,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_304a64fa-3272-474d-afea-64b47e4b1bbf/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE