./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_11-fldsense_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_3446be75-a86f-48a0-84f1-ab11b05bce3d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/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_3446be75-a86f-48a0-84f1-ab11b05bce3d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_11-fldsense_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/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_3446be75-a86f-48a0-84f1-ab11b05bce3d/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 76a87e9978ce967325112636953f91ea61da109ac2f6b46dc27ad9806965fd13 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:37:06,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:37:06,763 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 13:37:06,775 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:37:06,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:37:06,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:37:06,823 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:37:06,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:37:06,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:37:06,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:37:06,826 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:37:06,826 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:37:06,827 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:37:06,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:37:06,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:37:06,828 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:37:06,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:37:06,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:37:06,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:37:06,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:37:06,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:37:06,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:37:06,829 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 13:37:06,829 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:37:06,829 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:37:06,830 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:37:06,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:37:06,830 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:37:06,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:37:06,830 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:37:06,830 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:37:06,830 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:37:06,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:37:06,831 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:37:06,831 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:37:06,831 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:37:06,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:37:06,831 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:37:06,831 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:37:06,831 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:37:06,831 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:37:06,831 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_3446be75-a86f-48a0-84f1-ab11b05bce3d/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 -> 76a87e9978ce967325112636953f91ea61da109ac2f6b46dc27ad9806965fd13 [2024-11-13 13:37:07,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:37:07,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:37:07,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:37:07,278 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:37:07,278 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:37:07,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/05-lval_ls_11-fldsense_rc.i Unable to find full path for "g++" [2024-11-13 13:37:09,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:37:10,029 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:37:10,030 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/sv-benchmarks/c/goblint-regression/05-lval_ls_11-fldsense_rc.i [2024-11-13 13:37:10,048 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/bin/uautomizer-verify-qhAvR1uOyd/data/bb71ee68d/f1aa5140f36e4ab7a2fbdbecefb60796/FLAG1781bd648 [2024-11-13 13:37:10,067 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/bin/uautomizer-verify-qhAvR1uOyd/data/bb71ee68d/f1aa5140f36e4ab7a2fbdbecefb60796 [2024-11-13 13:37:10,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:37:10,072 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:37:10,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:37:10,074 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:37:10,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:37:10,080 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c63e653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10, skipping insertion in model container [2024-11-13 13:37:10,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,145 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:37:10,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:37:10,541 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:37:10,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:37:10,660 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:37:10,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10 WrapperNode [2024-11-13 13:37:10,661 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:37:10,662 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:37:10,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:37:10,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:37:10,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,690 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,728 INFO L138 Inliner]: procedures = 165, calls = 31, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 60 [2024-11-13 13:37:10,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:37:10,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:37:10,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:37:10,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:37:10,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,748 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,751 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,760 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,762 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,764 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,765 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:37:10,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:37:10,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:37:10,769 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:37:10,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (1/1) ... [2024-11-13 13:37:10,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:37:10,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:37:10,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:37:10,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:37:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 13:37:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 13:37:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 13:37:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:37:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 13:37:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 13:37:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 13:37:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 13:37:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 13:37:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:37:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:37:10,850 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 13:37:11,033 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:37:11,036 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:37:11,338 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:37:11,338 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:37:11,367 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:37:11,367 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:37:11,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:11 BoogieIcfgContainer [2024-11-13 13:37:11,368 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:37:11,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:37:11,372 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:37:11,377 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:37:11,378 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:37:10" (1/3) ... [2024-11-13 13:37:11,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@decb572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:37:11, skipping insertion in model container [2024-11-13 13:37:11,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:10" (2/3) ... [2024-11-13 13:37:11,379 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@decb572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:37:11, skipping insertion in model container [2024-11-13 13:37:11,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:11" (3/3) ... [2024-11-13 13:37:11,381 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_11-fldsense_rc.i [2024-11-13 13:37:11,401 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:37:11,403 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 05-lval_ls_11-fldsense_rc.i that has 2 procedures, 90 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-13 13:37:11,404 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:37:11,522 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 13:37:11,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 182 flow [2024-11-13 13:37:11,692 INFO L124 PetriNetUnfolderBase]: 0/88 cut-off events. [2024-11-13 13:37:11,696 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:37:11,705 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 88 events. 0/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-13 13:37:11,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 182 flow [2024-11-13 13:37:11,710 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 92 places, 88 transitions, 179 flow [2024-11-13 13:37:11,730 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:37:11,752 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;@66f0887f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:37:11,753 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-13 13:37:11,786 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:37:11,786 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2024-11-13 13:37:11,786 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:37:11,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:37:11,788 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 13:37:11,788 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 13:37:11,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:37:11,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1353210462, now seen corresponding path program 1 times [2024-11-13 13:37:11,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:37:11,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300968014] [2024-11-13 13:37:11,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:11,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:37:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:37:13,231 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 13:37:13,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:37:13,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300968014] [2024-11-13 13:37:13,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300968014] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:37:13,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:37:13,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:37:13,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653156981] [2024-11-13 13:37:13,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:37:13,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:37:13,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:37:13,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:37:13,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:37:13,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 89 [2024-11-13 13:37:13,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 88 transitions, 179 flow. Second operand has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 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 13:37:13,586 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:37:13,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 89 [2024-11-13 13:37:13,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:37:14,225 INFO L124 PetriNetUnfolderBase]: 260/944 cut-off events. [2024-11-13 13:37:14,226 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 13:37:14,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1519 conditions, 944 events. 260/944 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5974 event pairs, 67 based on Foata normal form. 0/907 useless extension candidates. Maximal degree in co-relation 1479. Up to 257 conditions per place. [2024-11-13 13:37:14,239 INFO L140 encePairwiseOnDemand]: 67/89 looper letters, 88 selfloop transitions, 42 changer transitions 0/190 dead transitions. [2024-11-13 13:37:14,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 190 transitions, 643 flow [2024-11-13 13:37:14,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:37:14,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:37:14,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 498 transitions. [2024-11-13 13:37:14,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9325842696629213 [2024-11-13 13:37:14,264 INFO L175 Difference]: Start difference. First operand has 92 places, 88 transitions, 179 flow. Second operand 6 states and 498 transitions. [2024-11-13 13:37:14,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 190 transitions, 643 flow [2024-11-13 13:37:14,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 190 transitions, 642 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:37:14,278 INFO L231 Difference]: Finished difference. Result has 101 places, 134 transitions, 494 flow [2024-11-13 13:37:14,281 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=494, PETRI_PLACES=101, PETRI_TRANSITIONS=134} [2024-11-13 13:37:14,286 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 9 predicate places. [2024-11-13 13:37:14,287 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 134 transitions, 494 flow [2024-11-13 13:37:14,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 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 13:37:14,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:37:14,289 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, 1, 1, 1, 1] [2024-11-13 13:37:14,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:37:14,290 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 13:37:14,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:37:14,292 INFO L85 PathProgramCache]: Analyzing trace with hash 2056229031, now seen corresponding path program 1 times [2024-11-13 13:37:14,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:37:14,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910967101] [2024-11-13 13:37:14,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:14,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:37:14,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:37:15,081 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 13:37:15,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:37:15,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910967101] [2024-11-13 13:37:15,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910967101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:37:15,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:37:15,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:37:15,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799382686] [2024-11-13 13:37:15,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:37:15,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:37:15,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:37:15,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:37:15,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:37:15,275 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 89 [2024-11-13 13:37:15,276 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 134 transitions, 494 flow. Second operand has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 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 13:37:15,276 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:37:15,276 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 89 [2024-11-13 13:37:15,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:37:15,924 INFO L124 PetriNetUnfolderBase]: 416/1343 cut-off events. [2024-11-13 13:37:15,924 INFO L125 PetriNetUnfolderBase]: For 596/631 co-relation queries the response was YES. [2024-11-13 13:37:15,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3255 conditions, 1343 events. 416/1343 cut-off events. For 596/631 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9227 event pairs, 108 based on Foata normal form. 21/1347 useless extension candidates. Maximal degree in co-relation 3211. Up to 602 conditions per place. [2024-11-13 13:37:15,940 INFO L140 encePairwiseOnDemand]: 72/89 looper letters, 99 selfloop transitions, 53 changer transitions 6/217 dead transitions. [2024-11-13 13:37:15,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 217 transitions, 1162 flow [2024-11-13 13:37:15,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:37:15,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:37:15,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 458 transitions. [2024-11-13 13:37:15,948 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8576779026217228 [2024-11-13 13:37:15,949 INFO L175 Difference]: Start difference. First operand has 101 places, 134 transitions, 494 flow. Second operand 6 states and 458 transitions. [2024-11-13 13:37:15,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 217 transitions, 1162 flow [2024-11-13 13:37:15,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 217 transitions, 1162 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:37:15,967 INFO L231 Difference]: Finished difference. Result has 111 places, 185 transitions, 1000 flow [2024-11-13 13:37:15,967 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1000, PETRI_PLACES=111, PETRI_TRANSITIONS=185} [2024-11-13 13:37:15,969 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 19 predicate places. [2024-11-13 13:37:15,969 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 185 transitions, 1000 flow [2024-11-13 13:37:15,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.333333333333336) internal successors, (374), 6 states have internal predecessors, (374), 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 13:37:15,969 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:37:15,970 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, 1, 1, 1, 1, 1] [2024-11-13 13:37:15,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:37:15,971 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 13:37:15,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:37:15,972 INFO L85 PathProgramCache]: Analyzing trace with hash 831785552, now seen corresponding path program 1 times [2024-11-13 13:37:15,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:37:15,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689074356] [2024-11-13 13:37:15,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:15,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:37:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:37:16,545 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 13:37:16,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:37:16,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689074356] [2024-11-13 13:37:16,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689074356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:37:16,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:37:16,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:37:16,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128208768] [2024-11-13 13:37:16,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:37:16,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:37:16,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:37:16,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:37:16,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:37:16,743 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 89 [2024-11-13 13:37:16,744 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 185 transitions, 1000 flow. Second operand has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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 13:37:16,744 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:37:16,744 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 89 [2024-11-13 13:37:16,745 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:37:17,309 INFO L124 PetriNetUnfolderBase]: 570/1723 cut-off events. [2024-11-13 13:37:17,309 INFO L125 PetriNetUnfolderBase]: For 2348/2396 co-relation queries the response was YES. [2024-11-13 13:37:17,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5287 conditions, 1723 events. 570/1723 cut-off events. For 2348/2396 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 12236 event pairs, 127 based on Foata normal form. 25/1723 useless extension candidates. Maximal degree in co-relation 5237. Up to 841 conditions per place. [2024-11-13 13:37:17,329 INFO L140 encePairwiseOnDemand]: 72/89 looper letters, 120 selfloop transitions, 58 changer transitions 39/277 dead transitions. [2024-11-13 13:37:17,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 277 transitions, 1958 flow [2024-11-13 13:37:17,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:37:17,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:37:17,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 448 transitions. [2024-11-13 13:37:17,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8389513108614233 [2024-11-13 13:37:17,332 INFO L175 Difference]: Start difference. First operand has 111 places, 185 transitions, 1000 flow. Second operand 6 states and 448 transitions. [2024-11-13 13:37:17,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 277 transitions, 1958 flow [2024-11-13 13:37:17,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 277 transitions, 1950 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-13 13:37:17,366 INFO L231 Difference]: Finished difference. Result has 120 places, 212 transitions, 1400 flow [2024-11-13 13:37:17,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1400, PETRI_PLACES=120, PETRI_TRANSITIONS=212} [2024-11-13 13:37:17,368 INFO L277 CegarLoopForPetriNet]: 92 programPoint places, 28 predicate places. [2024-11-13 13:37:17,369 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 212 transitions, 1400 flow [2024-11-13 13:37:17,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 60.5) internal successors, (363), 6 states have internal predecessors, (363), 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 13:37:17,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:37:17,370 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:37:17,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:37:17,370 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 13:37:17,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:37:17,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1456707592, now seen corresponding path program 1 times [2024-11-13 13:37:17,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:37:17,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653768256] [2024-11-13 13:37:17,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:17,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:37:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:37:17,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:37:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:37:17,478 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:37:17,478 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:37:17,479 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-13 13:37:17,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-13 13:37:17,481 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-13 13:37:17,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-13 13:37:17,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-13 13:37:17,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-13 13:37:17,482 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-13 13:37:17,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:37:17,483 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 13:37:17,548 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 13:37:17,548 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:37:17,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:37:17 BasicIcfg [2024-11-13 13:37:17,560 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:37:17,560 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:37:17,560 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:37:17,561 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:37:17,563 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:11" (3/4) ... [2024-11-13 13:37:17,564 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 13:37:17,635 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:37:17,636 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:37:17,637 INFO L158 Benchmark]: Toolchain (without parser) took 7565.08ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 118.2MB in the beginning and 87.8MB in the end (delta: 30.4MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2024-11-13 13:37:17,637 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:17,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 588.22ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 98.0MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:37:17,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.95ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 96.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:17,638 INFO L158 Benchmark]: Boogie Preprocessor took 36.21ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 95.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:37:17,638 INFO L158 Benchmark]: RCFGBuilder took 599.25ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 77.9MB in the end (delta: 17.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:37:17,639 INFO L158 Benchmark]: TraceAbstraction took 6188.36ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 77.5MB in the beginning and 92.6MB in the end (delta: -15.1MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2024-11-13 13:37:17,639 INFO L158 Benchmark]: Witness Printer took 75.25ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 87.8MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:37:17,642 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 167.8MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 588.22ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 98.0MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.95ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 96.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.21ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 95.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 599.25ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 77.9MB in the end (delta: 17.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6188.36ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 77.5MB in the beginning and 92.6MB in the end (delta: -15.1MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * Witness Printer took 75.25ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 87.8MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L679] 0 struct { int x; int y; } data; VAL [data={1:0}] [L680] 0 struct { pthread_mutex_t x; pthread_mutex_t y; } m; VAL [data={1:0}, m={2:0}] [L690] 0 pthread_t id; VAL [data={1:0}, m={2:0}] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, data={1:0}, id=-1, m={2:0}] [L683] EXPR 1 data.x VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L683] 1 data.x++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] EXPR 0 data.x VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] [L683] 1 data.x++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] 0 data.x++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] [L683] 1 data.x++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] 0 data.x++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] [L683] 1 data.x++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] 0 data.x++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] Now there is a data race (on the heap) between C: data.x++ [683] and C: data.x++ [693] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 118 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: 5.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 215 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 167 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 113 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 661 IncrementalHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 113 mSolverCounterUnsat, 10 mSDtfsCounter, 661 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1400occurred in iteration=3, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 199 NumberOfCodeBlocks, 199 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 383 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 13:37:17,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3446be75-a86f-48a0-84f1-ab11b05bce3d/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