./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_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_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/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_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/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_701584b3-fb7c-46b1-95e2-7b154b56e313/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 14021be990ac15ab4220d2b72ebb5203b2152775e4c1d32aaa66b7b14032d7f7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:53:16,850 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:53:16,922 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 12:53:16,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:53:16,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:53:16,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:53:16,970 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:53:16,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:53:16,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:53:16,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:53:16,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:53:16,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:53:16,972 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:53:16,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:53:16,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:53:16,974 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:53:16,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:53:16,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:53:16,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:53:16,975 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:53:16,975 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:53:16,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:53:16,975 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 12:53:16,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:53:16,976 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:53:16,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:53:16,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:53:16,976 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:53:16,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:53:16,976 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:53:16,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:53:16,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:53:16,977 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:53:16,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:53:16,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:53:16,978 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:53:16,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:53:16,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:53:16,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:53:16,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:53:16,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:53:16,979 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_701584b3-fb7c-46b1-95e2-7b154b56e313/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 -> 14021be990ac15ab4220d2b72ebb5203b2152775e4c1d32aaa66b7b14032d7f7 [2024-11-13 12:53:17,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:53:17,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:53:17,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:53:17,322 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:53:17,322 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:53:17,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_rc.i Unable to find full path for "g++" [2024-11-13 12:53:19,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:53:19,788 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:53:19,789 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_rc.i [2024-11-13 12:53:19,813 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/data/2eaf521c7/58439f365fb74a19b72e1a5a1a218d5d/FLAGdb2a97ac6 [2024-11-13 12:53:19,951 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/data/2eaf521c7/58439f365fb74a19b72e1a5a1a218d5d [2024-11-13 12:53:19,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:53:19,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:53:19,960 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:53:19,961 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:53:19,966 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:53:19,967 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:53:19" (1/1) ... [2024-11-13 12:53:19,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ec6311 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:19, skipping insertion in model container [2024-11-13 12:53:19,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:53:19" (1/1) ... [2024-11-13 12:53:20,008 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:53:20,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:53:20,561 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:53:20,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:53:20,696 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:53:20,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20 WrapperNode [2024-11-13 12:53:20,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:53:20,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:53:20,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:53:20,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:53:20,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (1/1) ... [2024-11-13 12:53:20,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (1/1) ... [2024-11-13 12:53:20,756 INFO L138 Inliner]: procedures = 256, calls = 3, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2024-11-13 12:53:20,757 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:53:20,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:53:20,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:53:20,758 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:53:20,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (1/1) ... [2024-11-13 12:53:20,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (1/1) ... [2024-11-13 12:53:20,773 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (1/1) ... [2024-11-13 12:53:20,773 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (1/1) ... [2024-11-13 12:53:20,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (1/1) ... [2024-11-13 12:53:20,783 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (1/1) ... [2024-11-13 12:53:20,784 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (1/1) ... [2024-11-13 12:53:20,785 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (1/1) ... [2024-11-13 12:53:20,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:53:20,787 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:53:20,787 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:53:20,787 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:53:20,788 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (1/1) ... [2024-11-13 12:53:20,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:53:20,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:53:20,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:53:20,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:53:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 12:53:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 12:53:20,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:53:20,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:53:20,873 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 12:53:21,035 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:53:21,038 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:53:21,126 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 12:53:21,127 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:53:21,136 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:53:21,137 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 12:53:21,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:53:21 BoogieIcfgContainer [2024-11-13 12:53:21,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:53:21,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:53:21,140 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:53:21,145 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:53:21,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:53:19" (1/3) ... [2024-11-13 12:53:21,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f245195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:53:21, skipping insertion in model container [2024-11-13 12:53:21,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:53:20" (2/3) ... [2024-11-13 12:53:21,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f245195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:53:21, skipping insertion in model container [2024-11-13 12:53:21,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:53:21" (3/3) ... [2024-11-13 12:53:21,147 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_20-stdfun_rc.i [2024-11-13 12:53:21,164 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:53:21,165 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_20-stdfun_rc.i that has 2 procedures, 40 locations, 1 initial locations, 0 loop locations, and 3 error locations. [2024-11-13 12:53:21,165 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 12:53:21,230 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 12:53:21,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 39 transitions, 82 flow [2024-11-13 12:53:21,320 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-11-13 12:53:21,322 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:53:21,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 38 events. 0/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 30 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-13 12:53:21,326 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 39 transitions, 82 flow [2024-11-13 12:53:21,331 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 38 transitions, 79 flow [2024-11-13 12:53:21,345 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:53:21,363 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;@215e09ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:53:21,363 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-13 12:53:21,369 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:53:21,369 INFO L124 PetriNetUnfolderBase]: 0/15 cut-off events. [2024-11-13 12:53:21,370 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:53:21,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:21,370 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:21,372 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-13 12:53:21,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:21,376 INFO L85 PathProgramCache]: Analyzing trace with hash -339015500, now seen corresponding path program 1 times [2024-11-13 12:53:21,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:21,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502924302] [2024-11-13 12:53:21,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:21,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:21,660 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 12:53:21,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:21,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502924302] [2024-11-13 12:53:21,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502924302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:21,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:21,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:53:21,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662565053] [2024-11-13 12:53:21,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:21,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:53:21,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:21,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:53:21,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:53:21,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 39 [2024-11-13 12:53:21,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 79 flow. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 12:53:21,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:21,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 39 [2024-11-13 12:53:21,752 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:21,800 INFO L124 PetriNetUnfolderBase]: 3/73 cut-off events. [2024-11-13 12:53:21,801 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 12:53:21,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 73 events. 3/73 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 205 event pairs, 1 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 76. Up to 10 conditions per place. [2024-11-13 12:53:21,804 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 5 selfloop transitions, 4 changer transitions 0/41 dead transitions. [2024-11-13 12:53:21,805 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 41 transitions, 103 flow [2024-11-13 12:53:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:53:21,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:53:21,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-13 12:53:21,826 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9316239316239316 [2024-11-13 12:53:21,827 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 79 flow. Second operand 3 states and 109 transitions. [2024-11-13 12:53:21,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 41 transitions, 103 flow [2024-11-13 12:53:21,833 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 41 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:53:21,839 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 108 flow [2024-11-13 12:53:21,842 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2024-11-13 12:53:21,849 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 3 predicate places. [2024-11-13 12:53:21,849 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 108 flow [2024-11-13 12:53:21,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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 12:53:21,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:21,850 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:21,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:53:21,850 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-13 12:53:21,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:21,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1557886439, now seen corresponding path program 1 times [2024-11-13 12:53:21,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:21,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225884340] [2024-11-13 12:53:21,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:21,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:21,933 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 12:53:21,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:21,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225884340] [2024-11-13 12:53:21,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225884340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:21,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:21,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:53:21,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322832360] [2024-11-13 12:53:21,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:21,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:53:21,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:21,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:53:21,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:53:21,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 39 [2024-11-13 12:53:21,988 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 12:53:21,988 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:21,988 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 39 [2024-11-13 12:53:21,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:22,041 INFO L124 PetriNetUnfolderBase]: 19/132 cut-off events. [2024-11-13 12:53:22,044 INFO L125 PetriNetUnfolderBase]: For 59/65 co-relation queries the response was YES. [2024-11-13 12:53:22,046 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 132 events. 19/132 cut-off events. For 59/65 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 546 event pairs, 5 based on Foata normal form. 4/126 useless extension candidates. Maximal degree in co-relation 226. Up to 42 conditions per place. [2024-11-13 12:53:22,048 INFO L140 encePairwiseOnDemand]: 33/39 looper letters, 10 selfloop transitions, 7 changer transitions 0/46 dead transitions. [2024-11-13 12:53:22,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 46 transitions, 162 flow [2024-11-13 12:53:22,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:53:22,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:53:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 102 transitions. [2024-11-13 12:53:22,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8717948717948718 [2024-11-13 12:53:22,051 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 108 flow. Second operand 3 states and 102 transitions. [2024-11-13 12:53:22,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 46 transitions, 162 flow [2024-11-13 12:53:22,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 46 transitions, 150 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:53:22,054 INFO L231 Difference]: Finished difference. Result has 47 places, 46 transitions, 156 flow [2024-11-13 12:53:22,054 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=156, PETRI_PLACES=47, PETRI_TRANSITIONS=46} [2024-11-13 12:53:22,055 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 5 predicate places. [2024-11-13 12:53:22,055 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 46 transitions, 156 flow [2024-11-13 12:53:22,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 12:53:22,055 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:22,055 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:22,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:53:22,056 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-13 12:53:22,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:22,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1994117449, now seen corresponding path program 1 times [2024-11-13 12:53:22,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:22,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332183068] [2024-11-13 12:53:22,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:22,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:53:22,137 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 12:53:22,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:53:22,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332183068] [2024-11-13 12:53:22,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332183068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:53:22,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:53:22,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:53:22,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486999308] [2024-11-13 12:53:22,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:53:22,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:53:22,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:53:22,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:53:22,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:53:22,186 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 39 [2024-11-13 12:53:22,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 46 transitions, 156 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 12:53:22,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:53:22,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 39 [2024-11-13 12:53:22,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:53:22,262 INFO L124 PetriNetUnfolderBase]: 16/137 cut-off events. [2024-11-13 12:53:22,262 INFO L125 PetriNetUnfolderBase]: For 85/97 co-relation queries the response was YES. [2024-11-13 12:53:22,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 137 events. 16/137 cut-off events. For 85/97 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 587 event pairs, 1 based on Foata normal form. 1/132 useless extension candidates. Maximal degree in co-relation 264. Up to 29 conditions per place. [2024-11-13 12:53:22,267 INFO L140 encePairwiseOnDemand]: 34/39 looper letters, 8 selfloop transitions, 5 changer transitions 5/49 dead transitions. [2024-11-13 12:53:22,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 49 transitions, 200 flow [2024-11-13 12:53:22,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:53:22,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:53:22,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 105 transitions. [2024-11-13 12:53:22,269 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2024-11-13 12:53:22,269 INFO L175 Difference]: Start difference. First operand has 47 places, 46 transitions, 156 flow. Second operand 3 states and 105 transitions. [2024-11-13 12:53:22,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 49 transitions, 200 flow [2024-11-13 12:53:22,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 49 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:53:22,275 INFO L231 Difference]: Finished difference. Result has 49 places, 44 transitions, 160 flow [2024-11-13 12:53:22,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=39, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=49, PETRI_TRANSITIONS=44} [2024-11-13 12:53:22,277 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 7 predicate places. [2024-11-13 12:53:22,277 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 44 transitions, 160 flow [2024-11-13 12:53:22,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 12:53:22,278 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:53:22,278 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:53:22,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:53:22,278 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2024-11-13 12:53:22,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:53:22,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1189439505, now seen corresponding path program 1 times [2024-11-13 12:53:22,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:53:22,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196012355] [2024-11-13 12:53:22,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:53:22,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:53:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:53:22,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 12:53:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 12:53:22,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 12:53:22,334 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 12:53:22,335 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2024-11-13 12:53:22,337 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2024-11-13 12:53:22,338 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2024-11-13 12:53:22,338 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2024-11-13 12:53:22,338 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2024-11-13 12:53:22,338 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2024-11-13 12:53:22,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:53:22,339 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 12:53:22,371 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 12:53:22,372 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:53:22,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:53:22 BasicIcfg [2024-11-13 12:53:22,383 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:53:22,384 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:53:22,384 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:53:22,384 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:53:22,385 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:53:21" (3/4) ... [2024-11-13 12:53:22,386 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 12:53:22,432 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 12:53:22,432 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:53:22,433 INFO L158 Benchmark]: Toolchain (without parser) took 2475.83ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 53.3MB in the end (delta: 36.0MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2024-11-13 12:53:22,434 INFO L158 Benchmark]: CDTParser took 1.50ms. Allocated memory is still 83.9MB. Free memory is still 40.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:53:22,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 736.84ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 63.2MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 12:53:22,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.64ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 61.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:53:22,435 INFO L158 Benchmark]: Boogie Preprocessor took 28.33ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 60.9MB in the end (delta: 838.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:53:22,435 INFO L158 Benchmark]: RCFGBuilder took 350.24ms. Allocated memory is still 117.4MB. Free memory was 60.9MB in the beginning and 50.5MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:53:22,436 INFO L158 Benchmark]: TraceAbstraction took 1243.46ms. Allocated memory is still 117.4MB. Free memory was 50.1MB in the beginning and 55.4MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:53:22,436 INFO L158 Benchmark]: Witness Printer took 48.78ms. Allocated memory is still 117.4MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:53:22,438 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50ms. Allocated memory is still 83.9MB. Free memory is still 40.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 736.84ms. Allocated memory is still 117.4MB. Free memory was 89.3MB in the beginning and 63.2MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.64ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 61.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.33ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 60.9MB in the end (delta: 838.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 350.24ms. Allocated memory is still 117.4MB. Free memory was 60.9MB in the beginning and 50.5MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1243.46ms. Allocated memory is still 117.4MB. Free memory was 50.1MB in the beginning and 55.4MB in the end (delta: -5.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 48.78ms. Allocated memory is still 117.4MB. Free memory was 55.4MB in the beginning and 53.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L923] 0 pthread_t id; VAL [myglobal=0] [L924] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, id=-1, myglobal=0] [L919] 1 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, myglobal=0] [L919] 1 myglobal+1 VAL [\old(arg)={0:0}, arg={0:0}, myglobal=0] Now there is a data race on ~myglobal~0 between C: scanf("%d", &myglobal) [925] and C: myglobal+1 [919] - UnprovableResult [Line: 925]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: 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: 919]: 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, 54 locations, 6 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: 1.1s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 59 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 21 mSDtfsCounter, 60 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=160occurred 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, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 50 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 12:53:22,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_701584b3-fb7c-46b1-95e2-7b154b56e313/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE