./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd --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 f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:44:33,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:44:33,140 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 12:44:33,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:44:33,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:44:33,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:44:33,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:44:33,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:44:33,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:44:33,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:44:33,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:44:33,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:44:33,190 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:44:33,190 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:44:33,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:44:33,192 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:44:33,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:44:33,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:44:33,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:44:33,193 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:44:33,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:44:33,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:44:33,193 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 12:44:33,193 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:44:33,194 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:44:33,194 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:44:33,194 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:44:33,194 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:44:33,194 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:44:33,194 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:44:33,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:44:33,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:44:33,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:44:33,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:44:33,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:44:33,195 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:44:33,195 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:44:33,195 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:44:33,195 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:44:33,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:44:33,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:44:33,195 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd 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 -> f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 [2024-11-13 12:44:33,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:44:33,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:44:33,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:44:33,547 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:44:33,547 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:44:33,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i Unable to find full path for "g++" [2024-11-13 12:44:35,476 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:44:35,911 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:44:35,914 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i [2024-11-13 12:44:35,936 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/data/33ed3948d/4704a04312f64535b0877b6a07b4cec6/FLAGa186da7bf [2024-11-13 12:44:35,958 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/data/33ed3948d/4704a04312f64535b0877b6a07b4cec6 [2024-11-13 12:44:35,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:44:35,965 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:44:35,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:44:35,968 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:44:35,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:44:35,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:44:35" (1/1) ... [2024-11-13 12:44:35,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3138ac8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:35, skipping insertion in model container [2024-11-13 12:44:35,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:44:35" (1/1) ... [2024-11-13 12:44:36,030 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:44:36,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:44:36,655 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:44:36,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:44:36,769 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:44:36,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36 WrapperNode [2024-11-13 12:44:36,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:44:36,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:44:36,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:44:36,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:44:36,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (1/1) ... [2024-11-13 12:44:36,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (1/1) ... [2024-11-13 12:44:36,810 INFO L138 Inliner]: procedures = 269, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2024-11-13 12:44:36,811 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:44:36,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:44:36,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:44:36,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:44:36,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (1/1) ... [2024-11-13 12:44:36,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (1/1) ... [2024-11-13 12:44:36,822 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (1/1) ... [2024-11-13 12:44:36,823 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (1/1) ... [2024-11-13 12:44:36,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (1/1) ... [2024-11-13 12:44:36,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (1/1) ... [2024-11-13 12:44:36,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (1/1) ... [2024-11-13 12:44:36,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (1/1) ... [2024-11-13 12:44:36,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:44:36,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:44:36,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:44:36,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:44:36,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (1/1) ... [2024-11-13 12:44:36,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:44:36,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:44:36,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:44:36,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:44:36,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 12:44:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 12:44:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 12:44:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:44:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 12:44:36,905 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 12:44:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 12:44:36,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:44:36,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:44:36,906 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 12:44:37,065 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:44:37,067 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:44:37,300 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 12:44:37,301 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:44:37,340 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:44:37,340 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 12:44:37,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:44:37 BoogieIcfgContainer [2024-11-13 12:44:37,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:44:37,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:44:37,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:44:37,349 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:44:37,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:44:35" (1/3) ... [2024-11-13 12:44:37,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f1fb90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:44:37, skipping insertion in model container [2024-11-13 12:44:37,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:44:36" (2/3) ... [2024-11-13 12:44:37,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f1fb90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:44:37, skipping insertion in model container [2024-11-13 12:44:37,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:44:37" (3/3) ... [2024-11-13 12:44:37,353 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_16-ps_add1_rc.i [2024-11-13 12:44:37,374 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:44:37,376 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_16-ps_add1_rc.i that has 2 procedures, 76 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-13 12:44:37,376 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 12:44:37,453 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 12:44:37,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 78 transitions, 160 flow [2024-11-13 12:44:37,593 INFO L124 PetriNetUnfolderBase]: 3/77 cut-off events. [2024-11-13 12:44:37,598 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:44:37,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 53. Up to 2 conditions per place. [2024-11-13 12:44:37,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 78 transitions, 160 flow [2024-11-13 12:44:37,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 77 transitions, 157 flow [2024-11-13 12:44:37,629 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:44:37,649 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;@1719b406, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:44:37,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-13 12:44:37,672 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:44:37,672 INFO L124 PetriNetUnfolderBase]: 0/32 cut-off events. [2024-11-13 12:44:37,672 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:44:37,672 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:37,673 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] [2024-11-13 12:44:37,673 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 12:44:37,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:37,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1303307650, now seen corresponding path program 1 times [2024-11-13 12:44:37,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:37,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033918950] [2024-11-13 12:44:37,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:37,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:44:38,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:38,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033918950] [2024-11-13 12:44:38,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033918950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:38,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:38,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:44:38,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578867001] [2024-11-13 12:44:38,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:38,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:38,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:38,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:38,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:44:38,122 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 78 [2024-11-13 12:44:38,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 77 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-13 12:44:38,127 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:44:38,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 78 [2024-11-13 12:44:38,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:44:38,305 INFO L124 PetriNetUnfolderBase]: 45/289 cut-off events. [2024-11-13 12:44:38,305 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 12:44:38,311 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 289 events. 45/289 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1314 event pairs, 6 based on Foata normal form. 0/251 useless extension candidates. Maximal degree in co-relation 348. Up to 45 conditions per place. [2024-11-13 12:44:38,314 INFO L140 encePairwiseOnDemand]: 70/78 looper letters, 17 selfloop transitions, 6 changer transitions 0/87 dead transitions. [2024-11-13 12:44:38,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 87 transitions, 223 flow [2024-11-13 12:44:38,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:38,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:44:38,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-11-13 12:44:38,336 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9401709401709402 [2024-11-13 12:44:38,338 INFO L175 Difference]: Start difference. First operand has 78 places, 77 transitions, 157 flow. Second operand 3 states and 220 transitions. [2024-11-13 12:44:38,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 87 transitions, 223 flow [2024-11-13 12:44:38,344 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 87 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:44:38,352 INFO L231 Difference]: Finished difference. Result has 81 places, 83 transitions, 208 flow [2024-11-13 12:44:38,356 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=81, PETRI_TRANSITIONS=83} [2024-11-13 12:44:38,362 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 3 predicate places. [2024-11-13 12:44:38,362 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 83 transitions, 208 flow [2024-11-13 12:44:38,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 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) [2024-11-13 12:44:38,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:38,363 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] [2024-11-13 12:44:38,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:44:38,364 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 12:44:38,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:38,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1507183201, now seen corresponding path program 1 times [2024-11-13 12:44:38,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:38,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391957932] [2024-11-13 12:44:38,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:38,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:38,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:44:38,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:38,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391957932] [2024-11-13 12:44:38,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391957932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:38,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:38,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:44:38,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330104583] [2024-11-13 12:44:38,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:38,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:38,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:38,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:38,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:44:38,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 78 [2024-11-13 12:44:38,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 83 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2024-11-13 12:44:38,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:44:38,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 78 [2024-11-13 12:44:38,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:44:38,683 INFO L124 PetriNetUnfolderBase]: 66/338 cut-off events. [2024-11-13 12:44:38,683 INFO L125 PetriNetUnfolderBase]: For 102/128 co-relation queries the response was YES. [2024-11-13 12:44:38,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 338 events. 66/338 cut-off events. For 102/128 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1693 event pairs, 15 based on Foata normal form. 1/290 useless extension candidates. Maximal degree in co-relation 530. Up to 95 conditions per place. [2024-11-13 12:44:38,688 INFO L140 encePairwiseOnDemand]: 72/78 looper letters, 16 selfloop transitions, 7 changer transitions 2/90 dead transitions. [2024-11-13 12:44:38,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 90 transitions, 280 flow [2024-11-13 12:44:38,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:44:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2024-11-13 12:44:38,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9188034188034188 [2024-11-13 12:44:38,690 INFO L175 Difference]: Start difference. First operand has 81 places, 83 transitions, 208 flow. Second operand 3 states and 215 transitions. [2024-11-13 12:44:38,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 90 transitions, 280 flow [2024-11-13 12:44:38,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 90 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:44:38,697 INFO L231 Difference]: Finished difference. Result has 83 places, 87 transitions, 250 flow [2024-11-13 12:44:38,697 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=83, PETRI_TRANSITIONS=87} [2024-11-13 12:44:38,698 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 5 predicate places. [2024-11-13 12:44:38,698 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 87 transitions, 250 flow [2024-11-13 12:44:38,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2024-11-13 12:44:38,699 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:38,699 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] [2024-11-13 12:44:38,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:44:38,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 12:44:38,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:38,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1488441665, now seen corresponding path program 1 times [2024-11-13 12:44:38,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:38,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549803483] [2024-11-13 12:44:38,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:38,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:44:38,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:44:38,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:44:38,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549803483] [2024-11-13 12:44:38,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549803483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:44:38,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:44:38,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:44:38,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136126480] [2024-11-13 12:44:38,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:44:38,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:44:38,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:44:38,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:44:38,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:44:38,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 78 [2024-11-13 12:44:38,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 87 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2024-11-13 12:44:38,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:44:38,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 78 [2024-11-13 12:44:38,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:44:38,995 INFO L124 PetriNetUnfolderBase]: 75/390 cut-off events. [2024-11-13 12:44:38,995 INFO L125 PetriNetUnfolderBase]: For 192/214 co-relation queries the response was YES. [2024-11-13 12:44:38,998 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 390 events. 75/390 cut-off events. For 192/214 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1964 event pairs, 14 based on Foata normal form. 1/357 useless extension candidates. Maximal degree in co-relation 681. Up to 98 conditions per place. [2024-11-13 12:44:39,001 INFO L140 encePairwiseOnDemand]: 72/78 looper letters, 16 selfloop transitions, 7 changer transitions 7/95 dead transitions. [2024-11-13 12:44:39,002 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 95 transitions, 338 flow [2024-11-13 12:44:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:44:39,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:44:39,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 214 transitions. [2024-11-13 12:44:39,004 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9145299145299145 [2024-11-13 12:44:39,004 INFO L175 Difference]: Start difference. First operand has 83 places, 87 transitions, 250 flow. Second operand 3 states and 214 transitions. [2024-11-13 12:44:39,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 95 transitions, 338 flow [2024-11-13 12:44:39,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 95 transitions, 320 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:44:39,012 INFO L231 Difference]: Finished difference. Result has 85 places, 87 transitions, 272 flow [2024-11-13 12:44:39,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=78, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=272, PETRI_PLACES=85, PETRI_TRANSITIONS=87} [2024-11-13 12:44:39,014 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 7 predicate places. [2024-11-13 12:44:39,015 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 87 transitions, 272 flow [2024-11-13 12:44:39,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2024-11-13 12:44:39,015 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:44:39,015 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] [2024-11-13 12:44:39,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:44:39,016 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-13 12:44:39,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:44:39,019 INFO L85 PathProgramCache]: Analyzing trace with hash 295003391, now seen corresponding path program 1 times [2024-11-13 12:44:39,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:44:39,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129897844] [2024-11-13 12:44:39,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:44:39,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:44:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:44:39,054 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:44:39,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:44:39,106 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:44:39,106 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 12:44:39,107 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-13 12:44:39,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-13 12:44:39,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-13 12:44:39,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-13 12:44:39,109 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-13 12:44:39,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-13 12:44:39,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-13 12:44:39,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:44:39,110 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 12:44:39,157 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 12:44:39,157 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:44:39,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:44:39 BasicIcfg [2024-11-13 12:44:39,165 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:44:39,165 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:44:39,165 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:44:39,166 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:44:39,168 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:44:37" (3/4) ... [2024-11-13 12:44:39,169 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 12:44:39,228 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 12:44:39,228 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:44:39,229 INFO L158 Benchmark]: Toolchain (without parser) took 3265.49ms. Allocated memory is still 117.4MB. Free memory was 91.2MB in the beginning and 66.9MB in the end (delta: 24.3MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2024-11-13 12:44:39,230 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:44:39,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 803.69ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 63.1MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 12:44:39,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.83ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 61.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:44:39,231 INFO L158 Benchmark]: Boogie Preprocessor took 23.02ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 60.1MB in the end (delta: 936.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:44:39,232 INFO L158 Benchmark]: RCFGBuilder took 506.15ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 46.9MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:44:39,232 INFO L158 Benchmark]: TraceAbstraction took 1821.28ms. Allocated memory is still 117.4MB. Free memory was 46.4MB in the beginning and 70.7MB in the end (delta: -24.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:44:39,232 INFO L158 Benchmark]: Witness Printer took 63.15ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 66.9MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:44:39,234 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 803.69ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 63.1MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.83ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 61.2MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.02ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 60.1MB in the end (delta: 936.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 506.15ms. Allocated memory is still 117.4MB. Free memory was 60.1MB in the beginning and 46.9MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1821.28ms. Allocated memory is still 117.4MB. Free memory was 46.4MB in the beginning and 70.7MB in the end (delta: -24.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 63.15ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 66.9MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 946]: Data race detected Data race detected The following path leads to a data race: [L928] 0 int glob; VAL [glob=0] [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={1:0}] [L937] 0 int i = __VERIFIER_nondet_int(); VAL [glob=0, i=0, m={1:0}] [L938] 0 pthread_t id; VAL [glob=0, i=0, m={1:0}] [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, glob=0, i=0, id=-1, m={1:0}] [L932] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=0, m={1:0}] [L941] COND FALSE 0 !(\read(i)) VAL [\old(arg)={0:0}, arg={0:0}, glob=0, i=0, id=-1, m={1:0}] [L944] 0 i++ VAL [\old(arg)={0:0}, arg={0:0}, glob=0, i=1, id=-1, m={1:0}] [L945] COND TRUE 0 \read(i) VAL [\old(arg)={0:0}, arg={0:0}, glob=0, i=1, id=-1, m={1:0}] [L946] 0 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=0, i=1, id=-1, m={1:0}] [L932] 1 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, m={1:0}] [L946] 0 glob++ VAL [\old(arg)={0:0}, arg={0:0}, glob=1, i=1, id=-1, m={1:0}] Now there is a data race on ~glob~0 between C: glob++ [932] and C: glob++ [946] - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 96 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 33 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 0.4s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 108 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-13 12:44:39,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_764ced43-b130-4756-91ca-b628a6daee19/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE