./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_19-call_by_ptr_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_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/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_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_19-call_by_ptr_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/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_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/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 809ae362eff552f429817a169faf72f9b59df833d49ee9dde0f5e8fc70fce634 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:25:03,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:25:03,506 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 15:25:03,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:25:03,517 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:25:03,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:25:03,565 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:25:03,565 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:25:03,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:25:03,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:25:03,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:25:03,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:25:03,569 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:25:03,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:25:03,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:25:03,569 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:25:03,570 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:25:03,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:25:03,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:25:03,571 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:25:03,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:25:03,571 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:25:03,571 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 15:25:03,571 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:25:03,571 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:25:03,572 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:25:03,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:25:03,572 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:25:03,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:25:03,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:25:03,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:25:03,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:25:03,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:25:03,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:25:03,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:25:03,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:25:03,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:25:03,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:25:03,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:25:03,575 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:25:03,575 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:25:03,575 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_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/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 -> 809ae362eff552f429817a169faf72f9b59df833d49ee9dde0f5e8fc70fce634 [2024-11-13 15:25:03,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:25:03,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:25:03,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:25:03,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:25:03,987 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:25:03,989 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/04-mutex_19-call_by_ptr_rc.i Unable to find full path for "g++" [2024-11-13 15:25:06,503 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:25:06,824 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:25:06,826 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/sv-benchmarks/c/goblint-regression/04-mutex_19-call_by_ptr_rc.i [2024-11-13 15:25:06,841 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/bin/uautomizer-verify-qhAvR1uOyd/data/279f29ed2/cdf57482642a47d28e4657338c8d696a/FLAG37345ff04 [2024-11-13 15:25:06,859 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/bin/uautomizer-verify-qhAvR1uOyd/data/279f29ed2/cdf57482642a47d28e4657338c8d696a [2024-11-13 15:25:06,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:25:06,864 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:25:06,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:25:06,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:25:06,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:25:06,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:25:06" (1/1) ... [2024-11-13 15:25:06,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442701ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:06, skipping insertion in model container [2024-11-13 15:25:06,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:25:06" (1/1) ... [2024-11-13 15:25:06,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:25:07,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:25:07,494 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:25:07,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:25:07,622 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:25:07,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07 WrapperNode [2024-11-13 15:25:07,623 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:25:07,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:25:07,625 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:25:07,625 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:25:07,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,673 INFO L138 Inliner]: procedures = 169, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-13 15:25:07,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:25:07,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:25:07,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:25:07,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:25:07,683 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,695 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,705 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,713 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:25:07,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:25:07,714 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:25:07,714 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:25:07,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (1/1) ... [2024-11-13 15:25:07,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:25:07,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:25:07,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:25:07,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:25:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 15:25:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:25:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 15:25:07,803 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 15:25:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 15:25:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 15:25:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 15:25:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:25:07,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:25:07,807 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 15:25:08,015 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:25:08,020 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:25:08,335 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:25:08,336 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:25:08,363 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:25:08,363 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:25:08,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:25:08 BoogieIcfgContainer [2024-11-13 15:25:08,364 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:25:08,367 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:25:08,367 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:25:08,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:25:08,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:25:06" (1/3) ... [2024-11-13 15:25:08,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d888325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:25:08, skipping insertion in model container [2024-11-13 15:25:08,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:25:07" (2/3) ... [2024-11-13 15:25:08,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d888325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:25:08, skipping insertion in model container [2024-11-13 15:25:08,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:25:08" (3/3) ... [2024-11-13 15:25:08,376 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_19-call_by_ptr_rc.i [2024-11-13 15:25:08,396 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:25:08,398 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_19-call_by_ptr_rc.i that has 2 procedures, 99 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-13 15:25:08,398 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:25:08,487 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 15:25:08,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 101 transitions, 209 flow [2024-11-13 15:25:08,651 INFO L124 PetriNetUnfolderBase]: 3/100 cut-off events. [2024-11-13 15:25:08,654 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:25:08,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 100 events. 3/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2024-11-13 15:25:08,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 101 transitions, 209 flow [2024-11-13 15:25:08,665 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 95 transitions, 193 flow [2024-11-13 15:25:08,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:25:08,690 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;@60142fd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:25:08,690 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-13 15:25:08,708 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:25:08,708 INFO L124 PetriNetUnfolderBase]: 0/38 cut-off events. [2024-11-13 15:25:08,708 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:25:08,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:08,709 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] [2024-11-13 15:25:08,709 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 15:25:08,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:08,715 INFO L85 PathProgramCache]: Analyzing trace with hash -542093656, now seen corresponding path program 1 times [2024-11-13 15:25:08,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:08,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998447381] [2024-11-13 15:25:08,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:08,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:09,079 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 15:25:09,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:09,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998447381] [2024-11-13 15:25:09,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998447381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:09,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:09,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:25:09,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427915973] [2024-11-13 15:25:09,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:09,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:25:09,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:09,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:25:09,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:25:09,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 101 [2024-11-13 15:25:09,204 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 95 transitions, 193 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 15:25:09,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:09,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 101 [2024-11-13 15:25:09,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:09,397 INFO L124 PetriNetUnfolderBase]: 45/349 cut-off events. [2024-11-13 15:25:09,398 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 15:25:09,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 446 conditions, 349 events. 45/349 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1270 event pairs, 11 based on Foata normal form. 8/323 useless extension candidates. Maximal degree in co-relation 410. Up to 52 conditions per place. [2024-11-13 15:25:09,407 INFO L140 encePairwiseOnDemand]: 92/101 looper letters, 17 selfloop transitions, 6 changer transitions 0/104 dead transitions. [2024-11-13 15:25:09,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 104 transitions, 257 flow [2024-11-13 15:25:09,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:25:09,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:25:09,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2024-11-13 15:25:09,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9405940594059405 [2024-11-13 15:25:09,433 INFO L175 Difference]: Start difference. First operand has 96 places, 95 transitions, 193 flow. Second operand 3 states and 285 transitions. [2024-11-13 15:25:09,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 104 transitions, 257 flow [2024-11-13 15:25:09,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 104 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:25:09,450 INFO L231 Difference]: Finished difference. Result has 99 places, 100 transitions, 242 flow [2024-11-13 15:25:09,454 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=99, PETRI_TRANSITIONS=100} [2024-11-13 15:25:09,462 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 3 predicate places. [2024-11-13 15:25:09,462 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 100 transitions, 242 flow [2024-11-13 15:25:09,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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 15:25:09,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:09,464 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] [2024-11-13 15:25:09,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:25:09,465 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 15:25:09,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:09,467 INFO L85 PathProgramCache]: Analyzing trace with hash -594077205, now seen corresponding path program 1 times [2024-11-13 15:25:09,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:09,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989336723] [2024-11-13 15:25:09,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:09,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:09,601 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 15:25:09,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:09,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989336723] [2024-11-13 15:25:09,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989336723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:09,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:09,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:25:09,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408360501] [2024-11-13 15:25:09,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:09,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:25:09,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:09,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:25:09,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:25:09,660 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 101 [2024-11-13 15:25:09,661 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 100 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 15:25:09,661 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:09,661 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 101 [2024-11-13 15:25:09,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:09,834 INFO L124 PetriNetUnfolderBase]: 69/494 cut-off events. [2024-11-13 15:25:09,834 INFO L125 PetriNetUnfolderBase]: For 117/120 co-relation queries the response was YES. [2024-11-13 15:25:09,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 494 events. 69/494 cut-off events. For 117/120 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2305 event pairs, 21 based on Foata normal form. 2/451 useless extension candidates. Maximal degree in co-relation 701. Up to 105 conditions per place. [2024-11-13 15:25:09,843 INFO L140 encePairwiseOnDemand]: 95/101 looper letters, 17 selfloop transitions, 7 changer transitions 0/107 dead transitions. [2024-11-13 15:25:09,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 107 transitions, 314 flow [2024-11-13 15:25:09,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:25:09,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:25:09,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 278 transitions. [2024-11-13 15:25:09,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9174917491749175 [2024-11-13 15:25:09,852 INFO L175 Difference]: Start difference. First operand has 99 places, 100 transitions, 242 flow. Second operand 3 states and 278 transitions. [2024-11-13 15:25:09,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 107 transitions, 314 flow [2024-11-13 15:25:09,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 107 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:25:09,861 INFO L231 Difference]: Finished difference. Result has 101 places, 105 transitions, 286 flow [2024-11-13 15:25:09,861 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=101, PETRI_TRANSITIONS=105} [2024-11-13 15:25:09,862 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 5 predicate places. [2024-11-13 15:25:09,863 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 105 transitions, 286 flow [2024-11-13 15:25:09,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 15:25:09,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:09,865 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] [2024-11-13 15:25:09,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:25:09,865 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 15:25:09,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:09,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1478972692, now seen corresponding path program 1 times [2024-11-13 15:25:09,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:09,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119779848] [2024-11-13 15:25:09,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:09,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:25:10,012 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 15:25:10,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:25:10,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119779848] [2024-11-13 15:25:10,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119779848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:25:10,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:25:10,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:25:10,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678278443] [2024-11-13 15:25:10,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:25:10,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:25:10,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:25:10,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:25:10,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:25:10,116 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 101 [2024-11-13 15:25:10,117 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 105 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 15:25:10,117 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:25:10,117 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 101 [2024-11-13 15:25:10,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:25:10,264 INFO L124 PetriNetUnfolderBase]: 97/595 cut-off events. [2024-11-13 15:25:10,264 INFO L125 PetriNetUnfolderBase]: For 243/252 co-relation queries the response was YES. [2024-11-13 15:25:10,267 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1004 conditions, 595 events. 97/595 cut-off events. For 243/252 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2990 event pairs, 29 based on Foata normal form. 4/556 useless extension candidates. Maximal degree in co-relation 966. Up to 151 conditions per place. [2024-11-13 15:25:10,272 INFO L140 encePairwiseOnDemand]: 95/101 looper letters, 19 selfloop transitions, 8 changer transitions 3/112 dead transitions. [2024-11-13 15:25:10,272 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 112 transitions, 372 flow [2024-11-13 15:25:10,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:25:10,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:25:10,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 274 transitions. [2024-11-13 15:25:10,275 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9042904290429042 [2024-11-13 15:25:10,276 INFO L175 Difference]: Start difference. First operand has 101 places, 105 transitions, 286 flow. Second operand 3 states and 274 transitions. [2024-11-13 15:25:10,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 112 transitions, 372 flow [2024-11-13 15:25:10,281 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 112 transitions, 354 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:25:10,286 INFO L231 Difference]: Finished difference. Result has 103 places, 108 transitions, 326 flow [2024-11-13 15:25:10,287 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=101, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=326, PETRI_PLACES=103, PETRI_TRANSITIONS=108} [2024-11-13 15:25:10,288 INFO L277 CegarLoopForPetriNet]: 96 programPoint places, 7 predicate places. [2024-11-13 15:25:10,288 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 108 transitions, 326 flow [2024-11-13 15:25:10,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 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 15:25:10,288 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:25:10,288 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, 1, 1] [2024-11-13 15:25:10,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:25:10,289 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 15:25:10,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:25:10,290 INFO L85 PathProgramCache]: Analyzing trace with hash 664573382, now seen corresponding path program 1 times [2024-11-13 15:25:10,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:25:10,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024714740] [2024-11-13 15:25:10,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:25:10,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:25:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:25:10,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:25:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:25:10,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:25:10,381 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:25:10,383 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-13 15:25:10,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-13 15:25:10,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-13 15:25:10,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-13 15:25:10,388 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-13 15:25:10,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-13 15:25:10,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-13 15:25:10,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:25:10,391 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-13 15:25:10,455 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 15:25:10,455 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:25:10,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:25:10 BasicIcfg [2024-11-13 15:25:10,462 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:25:10,462 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:25:10,463 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:25:10,463 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:25:10,464 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:25:08" (3/4) ... [2024-11-13 15:25:10,465 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 15:25:10,538 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:25:10,538 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:25:10,539 INFO L158 Benchmark]: Toolchain (without parser) took 3675.30ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 51.0MB in the end (delta: 39.7MB). Peak memory consumption was 40.1MB. Max. memory is 16.1GB. [2024-11-13 15:25:10,539 INFO L158 Benchmark]: CDTParser took 0.71ms. Allocated memory is still 83.9MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:25:10,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 757.77ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 70.6MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:25:10,540 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.03ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 68.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:25:10,541 INFO L158 Benchmark]: Boogie Preprocessor took 39.19ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 67.6MB in the end (delta: 979.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:25:10,541 INFO L158 Benchmark]: RCFGBuilder took 650.00ms. Allocated memory is still 117.4MB. Free memory was 67.6MB in the beginning and 52.8MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:25:10,542 INFO L158 Benchmark]: TraceAbstraction took 2094.57ms. Allocated memory is still 117.4MB. Free memory was 52.3MB in the beginning and 56.2MB in the end (delta: -3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:25:10,542 INFO L158 Benchmark]: Witness Printer took 75.89ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 51.0MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:25:10,544 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71ms. Allocated memory is still 83.9MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 757.77ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 70.6MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.03ms. Allocated memory is still 117.4MB. Free memory was 70.5MB in the beginning and 68.6MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.19ms. Allocated memory is still 117.4MB. Free memory was 68.6MB in the beginning and 67.6MB in the end (delta: 979.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 650.00ms. Allocated memory is still 117.4MB. Free memory was 67.6MB in the beginning and 52.8MB in the end (delta: 14.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2094.57ms. Allocated memory is still 117.4MB. Free memory was 52.3MB in the beginning and 56.2MB in the end (delta: -3.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 75.89ms. Allocated memory is still 117.4MB. Free memory was 56.2MB in the beginning and 51.0MB in the end (delta: 5.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 697]: Data race detected Data race detected The following path leads to a data race: [L686] 0 int glob; VAL [glob=0] [L687] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, mutex1={1:0}] [L688] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, mutex1={1:0}, mutex2={2:0}] [L702] 0 pthread_t id; VAL [glob=0, mutex1={1:0}, mutex2={2:0}] [L703] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, glob=0, id=-1, mutex1={1:0}, mutex2={2:0}] [L704] CALL 0 foo(bar) [L681] 0 int i = 0; VAL [\old(arg)={0:0}, \old(callback)={-1:1}, arg={0:0}, callback={-1:1}, glob=0, i=0, mutex1={1:0}, mutex2={2:0}] [L681] COND TRUE 0 i < 10 VAL [\old(arg)={0:0}, \old(callback)={-1:1}, arg={0:0}, callback={-1:1}, glob=0, i=0, mutex1={1:0}, mutex2={2:0}] [L682] COND TRUE 0 __VERIFIER_nondet_int() VAL [\old(arg)={0:0}, \old(callback)={-1:1}, arg={0:0}, callback={-1:1}, glob=0, i=0, mutex1={1:0}, mutex2={2:0}] [L683] CALL 0 callback() [L691] EXPR 1 glob+1 VAL [\old(arg)={0:0}, arg={0:0}, glob=0, mutex1={1:0}, mutex2={2:0}] [L697] 0 glob+1 VAL [\old(arg)={0:0}, arg={0:0}, glob=0, mutex1={1:0}, mutex2={2:0}] [L691] EXPR 1 glob+1 VAL [\old(arg)={0:0}, arg={0:0}, glob=0, mutex1={1:0}, mutex2={2:0}] [L691] 1 glob=glob+1 VAL [\old(arg)={0:0}, arg={0:0}, glob=1, mutex1={1:0}, mutex2={2:0}] [L697] 0 glob+1 VAL [\old(arg)={0:0}, arg={0:0}, glob=1, mutex1={1:0}, mutex2={2:0}] Now there is a data race on ~glob~0 between C: glob=glob+1 [691] and C: glob+1 [697] - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: 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: 691]: 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 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, 117 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 21 mSDtfsCounter, 98 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=326occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 131 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 15:25:10,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4146a0f-90a3-4616-9fe8-ad25b0547e2b/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